jazz/Polling-CPP
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jazz
2025-11-19 12:10:43 -06:00
parent 127ee4e919
commit 6a7df62ed3
2 changed files with 25 additions and 8 deletions
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2
.gitignore vendored
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@@ -1,3 +1,5 @@
.cache/
.ccls-cache/ .ccls-cache/
.clangd
build/ build/
compile_commands.json compile_commands.json

31
Core/Src/main.cpp
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@@ -9,7 +9,8 @@
* Copyright (c) 2025 STMicroelectronics. * Copyright (c) 2025 STMicroelectronics.
* All rights reserved. * 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. * 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. * If no LICENSE file comes with this software, it is provided AS-IS.
* *
****************************************************************************** ******************************************************************************
@@ -21,9 +22,10 @@ extern "C" {
/* Private includes ----------------------------------------------------------*/ /* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */ /* USER CODE BEGIN Includes */
#include <stdio.h> //#include <stdio.h>
} // end extern "C" } // end extern "C"
#include <cstdio>
#include <cstring>
/* USER CODE END Includes */ /* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/ /* Private typedef -----------------------------------------------------------*/
@@ -33,7 +35,7 @@ extern "C" {
/* Private define ------------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */ /* USER CODE BEGIN PD */
#define Print2UART1 int __io_putchar(int data) #define Print2UART1 int __io_putchar(int data) // prints to serial monitor
//float duty = 58.52 // (((2396*4096)*65534)/65534)*100 //float duty = 58.52 // (((2396*4096)*65534)/65534)*100
//int duty = 59; //int duty = 59;
float duty = 58.52; float duty = 58.52;
@@ -59,11 +61,13 @@ float volts;
/* USER CODE END PV */ /* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/
extern "C" {
void SystemClock_Config(void); void SystemClock_Config(void);
static void MX_GPIO_Init(void); static void MX_GPIO_Init(void);
static void MX_ADC1_Init(void); static void MX_ADC1_Init(void);
static void MX_TIM1_Init(void); static void MX_TIM1_Init(void);
static void MX_USART1_UART_Init(void); static void MX_USART1_UART_Init(void);
}
/* USER CODE BEGIN PFP */ /* USER CODE BEGIN PFP */
/* USER CODE END PFP */ /* USER CODE END PFP */
@@ -82,7 +86,6 @@ main(void)
{ {
/* USER CODE BEGIN 1 */ /* USER CODE BEGIN 1 */
/* USER CODE END 1 */ /* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/ /* MCU Configuration--------------------------------------------------------*/
@@ -115,14 +118,14 @@ main(void)
while (1) while (1)
{ {
HAL_ADC_Start(&hadc1); HAL_ADC_Start(&hadc1);
HAL_ADC_PollForConversion(&hadc1, 100); HAL_ADC_PollForConversion(&hadc1, 100); //poll ADC1 periph, timeout 100ms
rawValue = (float)HAL_ADC_GetValue(&hadc1); rawValue = HAL_ADC_GetValue(&hadc1);
HAL_Delay(500); HAL_Delay(500);
//volts = rawValue; // TODO change this to an actual conversion //volts = rawValue; // TODO change this to an actual conversion
volts = rawValue / duty; volts = (float)rawValue / duty;
//printf("The value is %hu volts.\r\n", volts); //printf("The value is %hu volts.\r\n", volts);
printf("The value is %f volts.\r\n", volts); printf("The value is %f volts.\r\n", volts);
@@ -131,6 +134,7 @@ main(void)
__HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1, duty); // TODO dude what is going on __HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1, duty); // TODO dude what is going on
// rawValue/4096*65545 // rawValue/4096*65545
// i think it works now?
HAL_Delay(100); HAL_Delay(100);
/* USER CODE END WHILE */ /* USER CODE END WHILE */
@@ -367,6 +371,7 @@ static void MX_GPIO_Init(void)
} }
/* USER CODE BEGIN 4 */ /* USER CODE BEGIN 4 */
/*
int int
__io_putchar(int ch) __io_putchar(int ch)
{ {
@@ -375,6 +380,15 @@ __io_putchar(int ch)
//return ch; //return ch;
return (int)NULL; return (int)NULL;
} }
*/
extern "C" int
__io_putchar(int ch)
{
uint8_t c = ch; // we just want 1 byte
HAL_UART_Transmit(&huart1, &c, 1, HAL_MAX_DELAY);
return ch;
}
/* USER CODE END 4 */ /* USER CODE END 4 */
@@ -406,3 +420,4 @@ void assert_failed(uint8_t *file, uint32_t line)
/* USER CODE END 6 */ /* USER CODE END 6 */
} }
#endif /* USE_FULL_ASSERT */ #endif /* USE_FULL_ASSERT */