snapshot before checking ioc in TrafficLightsPlusPlus

This commit is contained in:
2025-10-13 14:55:27 -05:00
parent 9e2e9f7773
commit 9c5d61ba34
503 changed files with 34483 additions and 57484 deletions

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/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedstrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}

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/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedstrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}

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/*
* breadboard.h
*
* Created on: Sep 20, 2025
* Author: ja
*/
#ifndef INC_BREADBOARD_H_
#define INC_BREADBOARD_H_
void trafflight(int);
#endif /* INC_BREADBOARD_H_ */

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/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_SET);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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@@ -1,2 +0,0 @@
635E684B79701B039C64EA45C3F84D30=76D5CABA7E36F5DD0D38ED323FA426B4
eclipse.preferences.version=1

View File

@@ -1,85 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(
R_Prt, R_Pin |
Y_Prt, Y_Pin |
G_Prt, G_Pin,
GPIO_PIN_RESET
);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin);
break;
case 0:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
}
}
}

View File

@@ -1,731 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
trafflight(333);
walksig(1000);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin WalkLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -0,0 +1,536 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
SetTrafficLights(currentState);
// if ped button was pressed during GREEN or YELLOW,
// we need to enable WHITE ...
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_SET);
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
} else
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_Pin_RESET);
if (elapased >= DURATION_RED_PED)
{
currentStateTime = now;
}
}
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,9 +0,0 @@
/*
* breadboard.cpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#include "breadboad.hpp"

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -0,0 +1,324 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianThisCycle = false;
pedestrianNextcycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
} else {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
if (elapsed >= DURATION_RED_NOPED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,98 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(
R_Prt, R_Pin |
Y_Prt, Y_Pin |
G_Prt, G_Pin,
GPIO_PIN_RESET
);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
// if ped button was pressed during GREEN or YELLOW,
// we need to enable WHITE
}
break;
case TrafficState::RED:
//
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,88 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_index = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
walktick_last = HAL_GetTick();
}
void
trafflight(int traffSPD, int walkSPD)
{
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);
switch (trafflight_index) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_SET);
break;
case 0:
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
}
trafflight_index = (trafflight_index + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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/*
* breadboard.cpp
*
* Created on: Sep 22, 2025
* Author: ja
*/

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@@ -1,87 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t redlight_last;
uint32_t ylwlight_last;
uint32_t grnlight_last;
void
starttick(void)
{
redlight_last = HAL_GetTick();
ylwlight_last = HAL_GetTick();
grnlight_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
int ldelay2 = traffSPD * 2;
int ldelay3 = traffSPD * 3;
if ((trafftick_curr - redlight_last) >= traffSPD) {
redlight_last = trafftick_curr;
HAL_GPIO_TogglePin(R_Prt, R_Pin);
}
if ((trafftick_curr - ylwlight_last) >= ldelay2) {
ylwlight_last = trafftick_curr;
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
}
if ((trafftick_curr - grnlight_last) >= ldelay3) {
grnlight_last = trafftick_curr;
HAL_GPIO_TogglePin(G_Prt, G_Pin);
}
}

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/*
* breadboard.c
*
* Created on: Sep 12, 2025
* Author: ja
*/
#include <stdbool.h>
#include "main.h"
void
breadboard(int DELAY_MS)
{
bool Purple = (HAL_GPIO_ReadPin(BTN_PRPL_GPIO_Port, BTN_PRPL_Pin) == GPIO_PIN_SET); // PD5
bool Grey = (HAL_GPIO_ReadPin(BTN_GREY_GPIO_Port, BTN_GREY_Pin) == GPIO_PIN_SET); // PD7
if (Purple && Grey) { // inverted for ease of debug, assignment calls for (Purple && Grey)
HAL_GPIO_WritePin(LED_EXT_GPIO_Port, LED_EXT_Pin, GPIO_PIN_SET); // PB4
} else {
HAL_GPIO_WritePin(LED_EXT_GPIO_Port, LED_EXT_Pin, GPIO_PIN_RESET); // PB4
}
HAL_Delay(DELAY_MS); // milliseconds of delay after execution
/*
// Always flash:
HAL_GPIO_WritePin(GPIOB, LED_EXT_Pin, GPIO_PIN_SET); // PB4 ON
HAL_Delay(DELAY_MS);
HAL_GPIO_WritePin(GPIOB, LED_EXT_Pin, GPIO_PIN_RESET); // PB4 OFF
HAL_Delay(DELAY_MS);
*/
}

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/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD, int walkSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_SET);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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@@ -1,3 +0,0 @@
635E684B79701B039C64EA45C3F84D30=76D5CABA7E36F5DD0D38ED323FA426B4
DC22A860405A8BF2F2C095E5B6529F12=BB3BD6F58A87E81DE6E549B37335B23A
eclipse.preferences.version=1

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@@ -1,731 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
trafflight(333);
walksig(1000)
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin WalkLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,92 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(
R_Prt, R_Pin |
Y_Prt, Y_Pin |
G_Prt, G_Pin,
GPIO_PIN_RESET
);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
}

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@@ -1,4 +0,0 @@
635E684B79701B039C64EA45C3F84D30=76D5CABA7E36F5DD0D38ED323FA426B4
66BE74F758C12D739921AEA421D593D3=0
DC22A860405A8BF2F2C095E5B6529F12=BB3BD6F58A87E81DE6E549B37335B23A
eclipse.preferences.version=1

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@@ -1,82 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(
R_Prt, R_Pin |
Y_Prt, Y_Pin |
G_Prt, G_Pin,
GPIO_PIN_RESET
);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin();
}
}
}

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@@ -1,69 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD)
}

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@@ -0,0 +1,499 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (buttonPressedThisCycle)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,13 +0,0 @@
/*
* breadboard.cpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#include "breadboard.h"
void SetTrafficLights(TrafficState s)
{
HAL_GPIO_WritePin(LED_Port,
}

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@@ -0,0 +1,499 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,97 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(
R_Prt, R_Pin |
Y_Prt, Y_Pin |
G_Prt, G_Pin,
GPIO_PIN_RESET
);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
}
}

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@@ -1,13 +0,0 @@
/*
* breadboard.cpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#include "breadboard.h"
void breadboard(void)
{
return;
}

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@@ -1,85 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t redlight_last;
uint32_t ylwlight_last;
uint32_t grnlight_last;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
int ldelay2 = traffSPD * 2;
int ldelay3 = traffSPD * 3;
if ((trafftick_curr - redlight_last) >= traffSPD) {
redlight_last = trafftick_curr;
HAL_GPIO_TogglePin(R_Prt, R_Pin);
}
if ((trafftick_curr - ylwlight_last) >= ldelay2) {
ylwlight_last = trafftick_curr;
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
}
if ((trafftick_curr - trafftick_last) >= ldelay3) {
grnlight_last = trafftick_curr;
HAL_GPIO_TogglePin(G_Prt, G_Pin);
}
}

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@@ -0,0 +1,334 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianThisCycle = false;
pedestrianNextcycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
} else {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
if (elapsed >= DURATION_RED_NOPED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
// software debounce
if (now - lastInterruptTime < 100)
return;
lastInterruptTime = now;
if (GPIO_Pin == PedButton_Pin)
buttonPressedThisCycle = true;
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,730 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
breadboard(333);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin WalkLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
SetTrafficLights(currentState);
// if ped button was pressed during GREEN or YELLOW,
// we need to enable WHITE ...
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_SET);
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
}
}
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
//
}
break;
case TrafficState::RED:
//
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

View File

@@ -0,0 +1,480 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

View File

@@ -1,730 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
trafflight(2000, 10*1000);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin WalkLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,10 +0,0 @@
/*
* breadboard.cpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#include "breadboard.h"

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@@ -1,90 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_index = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
walktick_last = HAL_GetTick();
}
void
trafflight(int traffSPD, int walkSPD)
{
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);
switch (trafflight_index) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_SET);
break;
case 0:
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
break;
}
trafflight_index = (trafflight_index + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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@@ -1,71 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t redlight_last;
uint32_t ylwlight_last;
uint32_t grnlight_last;
void
starttick(void)
{
redlight_last = HAL_GetTick();
ylwlight_last = HAL_GetTick();
grnlight_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
int ldelay2 = traffSPD * 2;
}

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@@ -0,0 +1,314 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
//buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,72 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
}
}

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@@ -1,32 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 12, 2025
* Author: ja
*/
#include <stdbool.h>
#include "main.h"
void
breadboard(int DELAY_MS)
{
bool Purple = (HAL_GPIO_ReadPin(BTN_PRPL_GPIO_Port, BTN_PRPL_Pin) == GPIO_PIN_SET); // PD5
bool Grey = (HAL_GPIO_ReadPin(BTN_GREY_GPIO_Port, BTN_GREY_Pin) == GPIO_PIN_SET); // PD7
if (Purple || Grey) { // inverted for ease of debug, assignment calls for (Purple && Grey)
HAL_GPIO_WritePin(LED_EXT_GPIO_Port, LED_EXT_Pin, GPIO_PIN_SET); // PB4
} else {
HAL_GPIO_WritePin(LED_EXT_GPIO_Port, LED_EXT_Pin, GPIO_PIN_RESET); // PB4
}
HAL_Delay(DELAY_MS); // milliseconds of delay after execution
/*
// Always flash:
HAL_GPIO_WritePin(GPIOB, LED_EXT_Pin, GPIO_PIN_SET); // PB4 ON
HAL_Delay(DELAY_MS);
HAL_GPIO_WritePin(GPIOB, LED_EXT_Pin, GPIO_PIN_RESET); // PB4 OFF
HAL_Delay(DELAY_MS);
*/
}

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White_GPIO_Port);
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,83 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t redlight_last;
uint32_t ylwlight_last;
uint32_t grnlight_last;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
int ldelay2 = traffSPD * 2;
int ldelay3 = traffSPD * 3;
if ((trafftick_curr - redlight_last) >= traffSPD) {
trafftick_last = trafftick_curr;
HAL_GPIO_TogglePin(R_Prt, R_Pin);
}
if ((trafftick_curr - trafftick_last) >= ldelay2) {
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
}
if ((trafftick_curr - trafftick_last) >= ldelay3) {
HAL_GPIO_TogglePin(G_Prt, G_Pin);
}
}

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@@ -1,82 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.h
* @brief : Header for main.c file.
* This file contains the common defines of the application.
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __MAIN_H
#define __MAIN_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Exported types ------------------------------------------------------------*/
/* USER CODE BEGIN ET */
/* USER CODE END ET */
/* Exported constants --------------------------------------------------------*/
/* USER CODE BEGIN EC */
/* USER CODE END EC */
/* Exported macro ------------------------------------------------------------*/
/* USER CODE BEGIN EM */
/* USER CODE END EM */
/* Exported functions prototypes ---------------------------------------------*/
void Error_Handler(void);
/* USER CODE BEGIN EFP */
/* USER CODE END EFP */
/* Private defines -----------------------------------------------------------*/
#define PedButton_Pin GPIO_PIN_14
#define PedButton_GPIO_Port GPIOA
#define PedButton_EXTI_IRQn EXTI15_10_IRQn
#define White_Pin GPIO_PIN_1
#define White_GPIO_Port GPIOD
#define Red_Pin GPIO_PIN_3
#define Red_GPIO_Port GPIOD
#define Yellow_Pin GPIO_PIN_5
#define Yellow_GPIO_Port GPIOD
#define Green_Pin GPIO_PIN_7
#define Green_GPIO_Port GPIOD
/* USER CODE BEGIN Private defines */
#define Traffic_GPIO_Port GPIOD
/* USER CODE END Private defines */
#ifdef __cplusplus
}
#endif
#endif /* __MAIN_H */

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/*
* breadboard.h
*
* Created on: Sep 20, 2025
* Author: ja
*/
#ifndef INC_BREADBOARD_H_
#define INC_BREADBOARD_H_
void trafflight(int);
#endif /* INC_BREADBOARD_H_ */

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@@ -1,95 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}

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/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t redlight_last;
uint32_t ylwlight_last;
uint32_t grnlight_last;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
int ldelay2 = traffSPD * 2;
int ldelay3 = traffSPD * 3;
if ((trafftick_curr - redlight_last) >= traffSPD) {
redlight_last = trafftick_curr;
HAL_GPIO_TogglePin(R_Prt, R_Pin);
}
if ((trafftick_curr - grnlight_last) >= ldelay2) {
grnlight_last = trafftick_curr;
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
}
if ((trafftick_curr - trafftick_last) >= ldelay3) {
HAL_GPIO_TogglePin(G_Prt, G_Pin);
}
}

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
}
break;
case TrafficState::RED:
//
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

View File

@@ -1,13 +0,0 @@
/*
* breadboard.cpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#include "breadboard.h"
void SetTrafficLights(TrafficState s)
{
}

View File

@@ -1,729 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
breadboard(333);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

View File

@@ -0,0 +1,342 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianThisCycle = false;
pedestrianNextcycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
} else {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
if (elapsed >= DURATION_RED_NOPED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/*
extern "C" void EXTI15_10_IRQHandler()
{
HAL_GPIO_EXTI_IRQHandler(PedButton_Pin);
}
*/
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
// software debounce
if (now - lastInterruptTime < 100)
return;
lastInterruptTime = now;
if (GPIO_Pin == PedButton_Pin)
buttonPressedThisCycle = true;
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

View File

@@ -1,74 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin();
switch (trafflight_i) {
}
}
}

View File

@@ -22,7 +22,8 @@
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
@@ -60,13 +61,31 @@ static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
/* USER CODE END 0 */
/**
@@ -123,8 +142,8 @@ int main(void)
/* Create the thread(s) */
/* definition and creation of defaultTask */
osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
@@ -139,6 +158,28 @@ int main(void)
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
@@ -344,6 +385,23 @@ static void MX_GPIO_Init(void)
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */

View File

@@ -0,0 +1,314 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

View File

@@ -1,730 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
trafflight(2000, 10000);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin WalkLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,32 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 12, 2025
* Author: ja
*/
#include <stdbool.h>
#include "main.h"
void
breadboard(int DELAY_MS)
{
bool Purple = (HAL_GPIO_ReadPin(BTN_PRPL_GPIO_Port, BTN_PRPL_Pin) == GPIO_PIN_SET); // PD5
bool Grey = (HAL_GPIO_ReadPin(BTN_GREY_GPIO_Port, BTN_GREY_Pin) == GPIO_PIN_SET); // PD7
if (Purple && Grey) { // inverted for ease of debug, assignment calls for (Purple && Grey)
HAL_GPIO_WritePin(LED_EXT_GPIO_Port, LED_EXT_Pin, GPIO_PIN_SET); // PB4
} else {
HAL_GPIO_WritePin(LED_EXT_GPIO_Port, LED_EXT_Pin, GPIO_PIN_RESET); // PB4
}
HAL_Delay(DELAY_MS); // milliseconds of delay after execution
/*
// Always flash:
HAL_GPIO_WritePin(GPIOB, LED_EXT_Pin, GPIO_PIN_SET); // PB4 ON
HAL_Delay(DELAY_MS);
HAL_GPIO_WritePin(GPIOB, LED_EXT_Pin, GPIO_PIN_RESET); // PB4 OFF
HAL_Delay(DELAY_MS);
*/
}

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@@ -1,85 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t redlight_last;
uint32_t ylwlight_last;
uint32_t grnlight_last;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
int ldelay2 = traffSPD * 2;
int ldelay3 = traffSPD * 3;
if ((trafftick_curr - redlight_last) >= traffSPD) {
redlight_last = trafftick_curr;
HAL_GPIO_TogglePin(R_Prt, R_Pin);
}
if ((trafftick_curr - ylwlight_last) >= ldelay2) {
ylwlight_last = trafftick_curr;
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
}
if ((trafftick_curr - trafftick_last) >= ldelay3) {
HAL_GPIO_TogglePin(G_Prt, G_Pin);
}
}

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@@ -1,730 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
trafflight(333);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin WalkLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

View File

@@ -1,72 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
switch (trafflight_i)
}
}

View File

@@ -0,0 +1,334 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianThisCycle = false;
pedestrianNextcycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
} else {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
if (elapsed >= DURATION_RED_NOPED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,9 +0,0 @@
/*
* breadboard.cpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#include "../Inc/breadboad.hpp"

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@@ -1,101 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(
R_Prt, R_Pin &&
Y_Prt, Y_Pin &&
G_Prt, G_Pin,
GPIO_PIN_RESET
);
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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@@ -1,15 +0,0 @@
/*
* breadboard.h
*
* Created on: Sep 20, 2025
* Author: ja
*/
#ifndef INC_BREADBOARD_H_
#define INC_BREADBOARD_H_
void starttick(void);
void trafflight(int);
#endif /* INC_BREADBOARD_H_ */

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@@ -1,91 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_index = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
walktick_last = HAL_GetTick();
}
void
trafflight(int traffSPD, int walkSPD)
{
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);
switch (trafflight_index) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_SET);
break;
case 0:
HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_SET);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
break;
case 2:
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_SET);
}
trafflight_index = (trafflight_index + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

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@@ -1,13 +0,0 @@
/*
* breadboard.cpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#include "breadboard.h"
void SetTrafficLights(TrafficState s)
{
HAL_GPIO_WritePin(Green_Port)
}

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@@ -1,89 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(
R_Prt, R_Pin |
Y_Prt, Y_Pin |
G_Prt, G_Pin,
GPIO_PIN_RESET
);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
break;
}
}
}

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@@ -0,0 +1,494 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White)
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin()
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
SetTrafficLights(currentState);
// if ped button was pressed during GREEN or YELLOW,
// we need to enable WHITE ...
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_SET);
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianThisCycle = false;
pedestrianNextcycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
} else {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
if (elapsed >= DURATION_RED_NOPED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
extern "C" void EXTI15_10_IRQHandler()
{
HAL_GPIO_EXTI_IRQHandler(PedButton_Pin);
}
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
// software debounce
if (now - lastInterruptTime < 100)
return;
lastInterruptTime = now;
if (GPIO_Pin == PedButton_Pin)
buttonPressedThisCycle = true;
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
{
pedestrianNextCycle = true;
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,74 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t redlight_last;
uint32_t ylwlight_last;
uint32_t grnlight_last;
void
starttick(void)
{
redlight_last = HAL_GetTick();
ylwlight_last = HAL_GetTick();
grnlight_last = HAL_GetTick();
trafflight_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if (trafftick_curr)
}

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@@ -1,730 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
trafflight(2*1000, 10*1000);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin WalkLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

View File

@@ -1,100 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint32_t walktick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(
R_Prt, R_Pin &&
Y_Prt, Y_Pin &&
G_Prt, G_Pin,
GPIO_PIN_RESET
);
HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
break;
}
trafflight_i = (trafflight_i + 1) % 3;
trafftick_last = trafftick_curr;
}
if ((trafftick_curr - walktick_last) >= walkSPD) {
HAL_GPIO_TogglePin(W_Prt, W_Pin);
walktick_last = trafftick_curr;
}
}

View File

@@ -1,15 +0,0 @@
/*
* breadboard.hpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#ifndef INC_BREADBOARD_HPP_
#define INC_BREADBOARD_HPP_
void breadboard(void);
#endif /* INC_BREADBOARD_HPP_ */

View File

@@ -22,7 +22,8 @@
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
@@ -54,18 +55,38 @@ osThreadId defaultTaskHandle;
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
@@ -96,6 +117,7 @@ int main(void)
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
@@ -121,7 +143,7 @@ int main(void)
/* Create the thread(s) */
/* definition and creation of defaultTask */
..osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
@@ -129,7 +151,7 @@ int main(void)
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
@@ -137,6 +159,28 @@ int main(void)
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
@@ -299,8 +343,66 @@ static void MX_TIM1_Init(void)
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */

View File

@@ -1,15 +0,0 @@
/*
* breadboard.hpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#ifndef INC_BREADBOARD_HPP_
#define INC_BREADBOARD_HPP_
#endif /* INC_BREADBOARD_HPP_ */

View File

@@ -1,728 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,68 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last))
}

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@@ -0,0 +1,513 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
}
break;
case TrafficState::RED:
//
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,88 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t trafftick_last;
uint8_t trafflight_i = 0;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
if ((trafftick_curr - trafftick_last) >= traffSPD) {
HAL_GPIO_WritePin(
R_Prt, R_Pin |
Y_Prt, Y_Pin |
G_Prt, G_Pin,
GPIO_PIN_RESET
);
switch (trafflight_i) {
case 0:
HAL_GPIO_WritePin(R_Prt, R_Pin);
break;
case 1:
HAL_GPIO_WritePin(Y_Prt, Y_Pin);
break;
case 2:
HAL_GPIO_WritePin(G_Prt, G_Pin);
}
}
}

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@@ -0,0 +1,532 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
SetTrafficLights(currentState);
// if ped button was pressed during GREEN or YELLOW,
// we need to enable WHITE ...
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_SET);
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
} else
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_Pin_RESET);
}
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -0,0 +1,512 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
//
}
break;
case TrafficState::RED:
//
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -0,0 +1,338 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianThisCycle = false;
pedestrianNextcycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
} else {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
if (elapsed >= DURATION_RED_NOPED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/*
extern "C" void EXTI15_10_IRQHandler()
{
HAL_GPIO_EXTI_IRQHandler(PedButton_Pin);
}
*/
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
// software debounce
if (now - lastInterruptTime < 100)
return;
lastInterruptTime = now;
if (GPIO_Pin == PedButton_Pin)
buttonPressedThisCycle = true;
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,89 +0,0 @@
/*
* breadboard.c
*
* Created on: Sep 17, 2025
* Author: ja
*/
/*
* #define RedLight_Pin GPIO_PIN_2
* #define RedLight_GPIO_Port GPIOE
*
* #define YellowLight_Pin GPIO_PIN_3
* #define YellowLight_GPIO_Port GPIOE
*
* #define GreenLight_Pin GPIO_PIN_4
* #define GreenLight_GPIO_Port GPIOE
*
* RedLight: PE2
* YellowLight: PE3
* GreenLight: PE4
* WalkLight: PE5
*
* Done: Traffic Light
* TODO: async? Walk Signal, Light Dimmer
*/
#include "main.h"
#include "breadboard.h"
#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin
#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port
uint32_t redlight_last;
uint32_t ylwlight_last;
uint32_t grnlight_last;
void
starttick(void)
{
trafftick_last = HAL_GetTick();
redlight_last = HAL_GetTick();
ylwlight_last = HAL_GetTick();
grnlight_last = HAL_GetTick();
}
void
trafflight(int traffSPD)
{
/*
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(R_Prt, R_Pin);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
HAL_Delay(traffSPD);
HAL_GPIO_TogglePin(G_Prt, G_Pin);
*/
uint32_t trafftick_curr = HAL_GetTick();
int ldelay2 = traffSPD * 2;
int ldelay3 = traffSPD * 3;
if ((trafftick_curr - redlight_last) >= traffSPD) {
redlight_last = trafftick_curr;
HAL_GPIO_TogglePin(R_Prt, R_Pin);
}
if ((trafftick_curr - ylwlight_last) >= ldelay2) {
ylwlight_last = trafftick_curr;
HAL_GPIO_TogglePin(Y_Prt, Y_Pin);
}
if ((trafftick_curr - grnlight_last) >= ldelay3) {
grnlight_last = trafftick_curr;
HAL_GPIO_TogglePin(G_Prt, G_Pin);
}
}

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianThisCycle = false;
pedestrianNextcycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
#include <stdbool.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
TIM_HandleTypeDef htim1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_TIM1_Init(void);
void StartDefaultTask(void const * argument);
void SetTrafficLights(TrafficSate s);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
enum class TrafficState {
GREEN,
YELLOW,
RED
};
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; // HAL_GetTick() at the start of this state
bool buttonPressed = false;
bool pedestrianNextCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
/*
switch(currentState)
{
case TrafficState::GREEN:
if (elapsed >= DURATION_GREEN) {
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressed = false; // reset the button-flag for the new cycle
} else if (buttonPressed) {
//idk
buttonPressed = true;
currentState = TrafficState::YELLOW;
}
break;
case TrafficState::YELLOW:
break;
case TrafficState::RED:
break;
}
*/
switch(currentState)
{
case TrafficState::GREEN:
if (butonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
} else if (elapsed >= DURATION_GREEN)
{
buttonPressedThisCycle = true;
currentState = TrafficState::YELLOW;
stateStartTime = now;
}
break;
case TrafficState::YELLOW:
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
SetTrafficLights(currentState);
// if ped button was pressed during GREEN or YELLOW,
// we need to enable WHITE ...
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_SET);
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
} else
{
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_Pin_RESET);
if (elapased >= DURATION_RED_PED)
{
}
}
break;
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if (now - lastInterruptTime < 100) {
return;
}
lastInterruptTime = now;
bool buttonPressedThisCycle = false; // temporary, get rid of this
if (buttonPressed) { // buttonPressedHere?
buttonPressedThisCycle = true;
}
}
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,15 +0,0 @@
/*
* breadboard.hpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#ifndef INC_BREADBOARD_H_
#define INC_BREADBOARD_H_
void breadboard(void);
#endif /* INC_BREADBOARD_H_ */

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@@ -0,0 +1,313 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_CallBack()
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
if(now - lastInterruptTime < 100)
{
return;
}
lastInterruptTime = now;
if (PedButton_Pin)
{
buttonPressedThisCycle = true;
}
}
void HAL_GPIO_EXTI_IRQHandler()
{
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,730 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "breadboard.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;
DMA2D_HandleTypeDef hdma2d;
I2C_HandleTypeDef hi2c3;
LTDC_HandleTypeDef hltdc;
SPI_HandleTypeDef hspi5;
TIM_HandleTypeDef htim1;
UART_HandleTypeDef huart1;
SDRAM_HandleTypeDef hsdram1;
osThreadId defaultTaskHandle;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CRC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_FMC_Init(void);
static void MX_I2C3_Init(void);
static void MX_LTDC_Init(void);
static void MX_SPI5_Init(void);
static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void);
void StartDefaultTask(void const * argument);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_DMA2D_Init();
MX_FMC_Init();
MX_I2C3_Init();
MX_LTDC_Init();
MX_SPI5_Init();
MX_TIM1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Create the thread(s) */
/* definition and creation of defaultTask */
//osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 4096);
//defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* Start scheduler */
//osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
trafflight(2000, 500);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief CRC Initialization Function
* @param None
* @retval None
*/
static void MX_CRC_Init(void)
{
/* USER CODE BEGIN CRC_Init 0 */
/* USER CODE END CRC_Init 0 */
/* USER CODE BEGIN CRC_Init 1 */
/* USER CODE END CRC_Init 1 */
hcrc.Instance = CRC;
if (HAL_CRC_Init(&hcrc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CRC_Init 2 */
/* USER CODE END CRC_Init 2 */
}
/**
* @brief DMA2D Initialization Function
* @param None
* @retval None
*/
static void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
/**
* @brief I2C3 Initialization Function
* @param None
* @retval None
*/
static void MX_I2C3_Init(void)
{
/* USER CODE BEGIN I2C3_Init 0 */
/* USER CODE END I2C3_Init 0 */
/* USER CODE BEGIN I2C3_Init 1 */
/* USER CODE END I2C3_Init 1 */
hi2c3.Instance = I2C3;
hi2c3.Init.ClockSpeed = 100000;
hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c3.Init.OwnAddress1 = 0;
hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c3.Init.OwnAddress2 = 0;
hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c3) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C3_Init 2 */
/* USER CODE END I2C3_Init 2 */
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 1;
hltdc.Init.AccumulatedHBP = 29;
hltdc.Init.AccumulatedVBP = 3;
hltdc.Init.AccumulatedActiveW = 269;
hltdc.Init.AccumulatedActiveH = 323;
hltdc.Init.TotalWidth = 279;
hltdc.Init.TotalHeigh = 327;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = 0xD0000000;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief SPI5 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI5_Init(void)
{
/* USER CODE BEGIN SPI5_Init 0 */
/* USER CODE END SPI5_Init 0 */
/* USER CODE BEGIN SPI5_Init 1 */
/* USER CODE END SPI5_Init 1 */
/* SPI5 parameter configuration*/
hspi5.Instance = SPI5;
hspi5.Init.Mode = SPI_MODE_MASTER;
hspi5.Init.Direction = SPI_DIRECTION_2LINES;
hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi5.Init.NSS = SPI_NSS_SOFT;
hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi5.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi5) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI5_Init 2 */
/* USER CODE END SPI5_Init 2 */
}
/**
* @brief TIM1 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM1_Init(void)
{
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 65535;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
/* USER CODE BEGIN FMC_Init 0 */
/* USER CODE END FMC_Init 0 */
FMC_SDRAM_TimingTypeDef SdramTiming = {0};
/* USER CODE BEGIN FMC_Init 1 */
/* USER CODE END FMC_Init 1 */
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 7;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 7;
SdramTiming.WriteRecoveryTime = 3;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler( );
}
/* USER CODE BEGIN FMC_Init 2 */
/* USER CODE END FMC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOE, RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(ACP_RST_GPIO_Port, ACP_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, RDX_Pin|WRX_DCX_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, LD3_Pin|LD4_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RedLight_Pin YellowLight_Pin GreenLight_Pin WalkLight_Pin */
GPIO_InitStruct.Pin = RedLight_Pin|YellowLight_Pin|GreenLight_Pin|WalkLight_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : NCS_MEMS_SPI_Pin CSX_Pin OTG_FS_PSO_Pin */
GPIO_InitStruct.Pin = NCS_MEMS_SPI_Pin|CSX_Pin|OTG_FS_PSO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : B1_Pin MEMS_INT1_Pin MEMS_INT2_Pin TP_INT1_Pin */
GPIO_InitStruct.Pin = B1_Pin|MEMS_INT1_Pin|MEMS_INT2_Pin|TP_INT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : ACP_RST_Pin */
GPIO_InitStruct.Pin = ACP_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ACP_RST_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : OTG_FS_OC_Pin */
GPIO_InitStruct.Pin = OTG_FS_OC_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(OTG_FS_OC_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BOOT1_Pin */
GPIO_InitStruct.Pin = BOOT1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BOOT1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : TE_Pin */
GPIO_InitStruct.Pin = TE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(TE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RDX_Pin WRX_DCX_Pin */
GPIO_InitStruct.Pin = RDX_Pin|WRX_DCX_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : LD3_Pin LD4_Pin */
GPIO_InitStruct.Pin = LD3_Pin|LD4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_HOST */
MX_USB_HOST_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}
/**
* @brief Period elapsed callback in non blocking mode
* @note This function is called when TIM6 interrupt took place, inside
* HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param htim : TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */
/* USER CODE END Callback 0 */
if (htim->Instance == TIM6)
{
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
/* USER CODE END Callback 1 */
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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@@ -1,2 +0,0 @@
635E684B79701B039C64EA45C3F84D30=76D5CABA7E36F5DD0D38ED323FA426B4
eclipse.preferences.version=1

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@@ -1,13 +0,0 @@
/*
* breadboard.cpp
*
* Created on: Sep 22, 2025
* Author: ja
*/
#include "breadboard.h"
void SetTrafficLights(TrafficState s)
{
HAL_GPIO_WritePin(LED_Port, Green_Pin, GPIO_PIN_RESET);
}

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@@ -0,0 +1,337 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
// Feeling sneaky.
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
}
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdbool.h>
enum class TrafficState { GREEN, YELLOW, RED };
void SetTrafficLights(TrafficState s);
TrafficState currentState = TrafficState::GREEN;
uint32_t stateStartTime = 0; //HAL_GetTick() at the start of this state
bool buttonPressedThisCycle = false;
bool pedestrianNextCycle = false;
bool pedestrianThisCycle = false;
const uint32_t DURATION_GREEN = 5000;
const uint32_t DURATION_YELLOW = 3000;
const uint32_t DURATION_RED_NOPED = 5000;
const uint32_t DURATION_RED_PED = 7000;
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
void SetTrafficLights(TrafficState s)
{
// reset all
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
switch (s)
{
case TrafficState::GREEN :
HAL_GPIO_WritePin(GPIOD, Green_Pin, GPIO_PIN_SET);
break;
case TrafficState::YELLOW :
HAL_GPIO_WritePin(GPIOD, Yellow_Pin, GPIO_PIN_SET);
break;
case TrafficState::RED:
HAL_GPIO_WritePin(GPIOD, Red_Pin, GPIO_PIN_SET);
break;
}
}
int main(void)
{
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
MX_GPIO_Init();
stateStartTime = HAL_GetTick();
SetTrafficLights(currentState);
while (1)
{
/* USER CODE END WHILE */
uint32_t now = HAL_GetTick();
uint32_t elapsed = now - stateStartTime;
switch(currentState)
{
case TrafficState::GREEN:
if (buttonPressedThisCycle)
pedestrianThisCycle = true;
/*
if (buttonPressedThisCycle)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
buttonPressedThisCycle = false;
SetTrafficLights(currentState);
}
else
{
pedestrianNextCycle = false;
SetTrafficLights(currentState);
}
*/
else if (elapsed >= DURATION_GREEN)
{
currentState = TrafficState::YELLOW;
stateStartTime = now;
SetTrafficLights(currentState);
}
break;
case TrafficState::YELLOW:
if (buttonPressedThisCycle || pedestrianNextCycle)
pedestrianThisCycle = true;
if (elapsed >= DURATION_YELLOW)
{
currentState = TrafficState::RED;
stateStartTime = now;
buttonPressedThisCycle = false; //TODO add pressed pedestrian button in yellow
SetTrafficLights(currentState);
// If Ped Button was pressed during GREEN or YELLOW, we need to enable WHITE this cycle
}
break;
case TrafficState::RED:
/*
if (pedestrianNextCycle)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_SET); // turn on Pedestrian LED
if (elapsed >= DURATION_RED_PED)
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
pedestrianNextCycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
else
{
HAL_GPIO_WritePin(GPIOD,White_Pin,GPIO_PIN_RESET);
if(elapsed >= DURATION_RED_PED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
}
}
*/
if (buttonPressedThisCycle)
pedestrianNextCycle = true;
if (pedestrianThisCycle) {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
pedestrianThisCycle = false;
pedestrianNextcycle = false;
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
} else {
HAL_GPIO_WritePin(White_GPIO_Port, White_Pin, GPIO_PIN_RESET);
if (elapsed >= DURATION_RED_NOPED)
{
currentState = TrafficState::GREEN;
stateStartTime = now;
SetTrafficLights(currentState);
buttonPressedThisCycle = false;
}
}
break;
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 50;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, White_Pin|Red_Pin|Yellow_Pin|Green_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : PedButton_Pin */
GPIO_InitStruct.Pin = PedButton_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(PedButton_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : White_Pin Red_Pin Yellow_Pin Green_Pin */
GPIO_InitStruct.Pin = White_Pin|Red_Pin|Yellow_Pin|Green_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 15, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/*
extern "C" void EXTI15_10_IRQHandler()
{
HAL_GPIO_EXTI_IRQHandler(PedButton_Pin);
}
*/
extern "C" void HAL_GPIO_EXTI_CallBack(uint16_t GPIO_Pin)
{
static uint32_t lastInterruptTime = 0;
uint32_t now = HAL_GetTick();
// software debounce
if (now - lastInterruptTime < 100)
return;
lastInterruptTime = now;
if (GPIO_Pin == PedButton_Pin)
buttonPressedThisCycle = true;
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

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