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387
Core/Src/main.c
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387
Core/Src/main.c
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/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file : main.c
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* @brief : INSHALLAH WE MOSH
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2025 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "stm32f4xx_hal.h"
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#include "stm32f4xx_hal_adc.h"
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#include "stm32f4xx_hal_def.h"
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#include "stm32f4xx_hal_gpio.h"
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/* Private includes ----------------------------------------------------------*/
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/* USER CODE BEGIN Includes */
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#include <stdio.h>
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#include <sys/_intsup.h>
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/* USER CODE END Includes */
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/* Private typedef -----------------------------------------------------------*/
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/* USER CODE BEGIN PTD */
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/* USER CODE END PTD */
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/* Private define ------------------------------------------------------------*/
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/* USER CODE BEGIN PD */
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/* USER CODE END PD */
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/* Private macro -------------------------------------------------------------*/
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/* USER CODE BEGIN PM */
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/* USER CODE END PM */
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/* Private variables ---------------------------------------------------------*/
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ADC_HandleTypeDef hadc1;
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UART_HandleTypeDef huart1;
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/* USER CODE BEGIN PV */
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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void SystemClock_Config(void);
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static void MX_GPIO_Init(void);
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static void MX_ADC1_Init(void);
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static void MX_USART1_UART_Init(void);
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/* USER CODE BEGIN PFP */
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/* USER CODE END PFP */
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/* Private user code ---------------------------------------------------------*/
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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/**
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* @brief The application entry point.
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* @retval int
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*/
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int main(void)
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{
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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/* MCU Configuration--------------------------------------------------------*/
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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HAL_Init();
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/* USER CODE BEGIN Init */
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/* USER CODE END Init */
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/* Configure the system clock */
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SystemClock_Config();
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/* USER CODE BEGIN SysInit */
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/* USER CODE END SysInit */
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/* Initialize all configured peripherals */
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MX_GPIO_Init();
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MX_ADC1_Init();
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MX_USART1_UART_Init();
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/* USER CODE BEGIN 2 */
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uint32_t val_adc;
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/* GPIO_PinState val_snooze; */
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/* USER CODE END 2 */
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/* Infinite loop */
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/* USER CODE BEGIN WHILE */
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/*
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* @brief INSHALLAH WE WILL BOIL THIS WATER
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*/
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infloop:
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printf("\x1B[2J\x1B[H"); /* ANSI: Clear TTY */
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printf("===STANDBY MODE===\r\n");
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printf("Peripherals disabled. Waiting for input...\r\n");
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while (1)
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{
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/* Wait for user to hit snooze */
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if (HAL_GPIO_ReadPin(BTN_SNOOZE_GPIO_Port, BTN_SNOOZE_Pin))
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goto boilwater;
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/* USER CODE END WHILE */
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/* USER CODE BEGIN 3 */
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}
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/*
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* @note We need to do the following:
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* 1. Turn on the relay
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* 2. Start the kettle
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* 3. Wait for temperature to be above 95
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* 4. Stop the kettle
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* 5. Stop the relay
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* 6. goto infloop
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*/
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boilwater:
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/* 1. Start the power */
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printf("Enabling relay...\r\n");
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HAL_GPIO_WritePin(SW_RELAY_GPIO_Port, SW_RELAY_Pin, GPIO_PIN_SET);
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/* 2. Motor: Flip kettle switch */
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printf("Starting boiler...\r\n");
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HAL_GPIO_WritePin(MOTOR_FORTH_GPIO_Port, MOTOR_FORTH_Pin, GPIO_PIN_SET);
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HAL_Delay(1500);
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HAL_GPIO_WritePin(MOTOR_FORTH_GPIO_Port, MOTOR_FORTH_Pin, GPIO_PIN_RESET);
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/* 3. Now we wait */
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printf("===BOIL MODE===\r\n");
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while (1) {
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/* Best we run this every half second. */
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HAL_Delay(500);
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/* hadc1 is the temperature sensor plugged in to THERM_IN */
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HAL_ADC_Start(&hadc1);
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HAL_ADC_PollForConversion(&hadc1, 1000);
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val_adc = HAL_ADC_GetValue(&hadc1);
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printf("\x1B[2J\x1B[H"); /* ANSI: Clear TTY */
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printf("Thermo-resistor raw value: %i\r\n", (int)val_adc);
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/* Steps 4-6 happen here.
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* We're guessing that a reading of 65 is gonna be pretty close to boiling.
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*/
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if (val_adc > 65) {
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/* 4. Motor: Switch the kettle off */
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HAL_GPIO_WritePin(MOTOR_BACK_GPIO_Port, MOTOR_BACK_Pin, GPIO_PIN_SET);
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HAL_Delay(1500);
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HAL_GPIO_WritePin(MOTOR_BACK_GPIO_Port, MOTOR_BACK_Pin, GPIO_PIN_RESET);
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/* 5. Cut the power */
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HAL_GPIO_WritePin(SW_RELAY_GPIO_Port, SW_RELAY_Pin, GPIO_PIN_RESET);
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/* 6. Sleepy time! */
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goto infloop;
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}
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}
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/* USER CODE END 3 */
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}
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/**
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* @brief System Clock Configuration
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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/** Configure the main internal regulator output voltage
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*/
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__HAL_RCC_PWR_CLK_ENABLE();
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure.
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
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RCC_OscInitStruct.PLL.PLLM = 8;
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RCC_OscInitStruct.PLL.PLLN = 50;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
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RCC_OscInitStruct.PLL.PLLQ = 7;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/** Initializes the CPU, AHB and APB buses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV8;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/**
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* @brief ADC1 Initialization Function
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* @param None
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* @retval None
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*/
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static void MX_ADC1_Init(void)
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{
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/* USER CODE BEGIN ADC1_Init 0 */
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/* USER CODE END ADC1_Init 0 */
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ADC_ChannelConfTypeDef sConfig = {0};
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/* USER CODE BEGIN ADC1_Init 1 */
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/* USER CODE END ADC1_Init 1 */
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/** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
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*/
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hadc1.Instance = ADC1;
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hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
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hadc1.Init.Resolution = ADC_RESOLUTION_12B;
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hadc1.Init.ScanConvMode = DISABLE;
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hadc1.Init.ContinuousConvMode = DISABLE;
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hadc1.Init.DiscontinuousConvMode = DISABLE;
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hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
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hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
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hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
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hadc1.Init.NbrOfConversion = 1;
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hadc1.Init.DMAContinuousRequests = DISABLE;
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hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
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if (HAL_ADC_Init(&hadc1) != HAL_OK)
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{
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Error_Handler();
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}
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/** Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
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*/
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sConfig.Channel = ADC_CHANNEL_1;
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sConfig.Rank = 1;
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sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
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if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN ADC1_Init 2 */
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/* USER CODE END ADC1_Init 2 */
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}
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/**
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* @brief USART1 Initialization Function
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* @param None
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* @retval None
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*/
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static void MX_USART1_UART_Init(void)
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{
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/* USER CODE BEGIN USART1_Init 0 */
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/* USER CODE END USART1_Init 0 */
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/* USER CODE BEGIN USART1_Init 1 */
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/* USER CODE END USART1_Init 1 */
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huart1.Instance = USART1;
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huart1.Init.BaudRate = 115200;
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huart1.Init.WordLength = UART_WORDLENGTH_8B;
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huart1.Init.StopBits = UART_STOPBITS_1;
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huart1.Init.Parity = UART_PARITY_NONE;
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huart1.Init.Mode = UART_MODE_TX;
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huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart1.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart1) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN USART1_Init 2 */
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/* USER CODE END USART1_Init 2 */
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}
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/**
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* @brief GPIO Initialization Function
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* @param None
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* @retval None
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*/
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static void MX_GPIO_Init(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* USER CODE BEGIN MX_GPIO_Init_1 */
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/* USER CODE END MX_GPIO_Init_1 */
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/* GPIO Ports Clock Enable */
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/*Configure GPIO pin Output Level */
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HAL_GPIO_WritePin(GPIOB, SW_RELAY_Pin|MOTOR_BACK_Pin|MOTOR_FORTH_Pin, GPIO_PIN_RESET);
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/*Configure GPIO pin : BTN_SNOOZE_Pin */
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GPIO_InitStruct.Pin = BTN_SNOOZE_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(BTN_SNOOZE_GPIO_Port, &GPIO_InitStruct);
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/*Configure GPIO pins : SW_RELAY_Pin MOTOR_BACK_Pin MOTOR_FORTH_Pin */
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GPIO_InitStruct.Pin = SW_RELAY_Pin|MOTOR_BACK_Pin|MOTOR_FORTH_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* USER CODE BEGIN MX_GPIO_Init_2 */
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/* USER CODE END MX_GPIO_Init_2 */
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}
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/* USER CODE BEGIN 4 */
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int
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__io_putchar(int ch)
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{
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uint8_t c = ch;
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HAL_UART_Transmit(&huart1, &c, 1, HAL_MAX_DELAY);
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return ch;
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}
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/* USER CODE END 4 */
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/**
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* @brief This function is executed in case of error occurrence.
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* @retval None
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*/
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void Error_Handler(void)
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{
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/* USER CODE BEGIN Error_Handler_Debug */
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/* User can add his own implementation to report the HAL error return state */
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__disable_irq();
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while (1)
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{
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}
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/* USER CODE END Error_Handler_Debug */
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* USER CODE BEGIN 6 */
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/* USER CODE END 6 */
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}
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#endif /* USE_FULL_ASSERT */
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