343 lines
9.6 KiB
C
343 lines
9.6 KiB
C
/* 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"
|
|
|
|
/* Private includes ----------------------------------------------------------*/
|
|
/* USER CODE BEGIN Includes */
|
|
#include <stdio.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 ---------------------------------------------------------*/
|
|
UART_HandleTypeDef huart1;
|
|
UART_HandleTypeDef huart2;
|
|
|
|
/* USER CODE BEGIN PV */
|
|
static uint8_t rx_buf[16];
|
|
static volatile uint8_t rx_complete = 0;
|
|
/* USER CODE END PV */
|
|
|
|
/* Private function prototypes -----------------------------------------------*/
|
|
void SystemClock_Config(void);
|
|
static void MX_GPIO_Init(void);
|
|
static void MX_USART1_UART_Init(void);
|
|
static void MX_USART2_UART_Init(void);
|
|
/* USER CODE BEGIN PFP */
|
|
|
|
/* USER CODE END PFP */
|
|
|
|
/* Private user code ---------------------------------------------------------*/
|
|
/* USER CODE BEGIN 0 */
|
|
static char heartbeat_buf[64];
|
|
|
|
/* 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_USART1_UART_Init();
|
|
MX_USART2_UART_Init();
|
|
/* USER CODE BEGIN 2 */
|
|
/* Start UART2 reception in interrupt mode */
|
|
HAL_UART_Receive_IT(&huart2, rx_buf, sizeof(rx_buf));
|
|
/* USER CODE END 2 */
|
|
|
|
/* Infinite loop */
|
|
/* USER CODE BEGIN WHILE */
|
|
while (1) {
|
|
static uint32_t last_toggle_timestamp;
|
|
if (HAL_GetTick() - last_toggle_timestamp >= 1000) {
|
|
HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_6);
|
|
/* Heartbeat: emit tick timestamp over UART1 and blink the PB6 LED */
|
|
int msg_len = snprintf(heartbeat_buf, sizeof(heartbeat_buf),
|
|
"PB6 heartbeat %lu\r\n", (unsigned long)HAL_GetTick());
|
|
if (msg_len > 0) {
|
|
if (msg_len >= (int)sizeof(heartbeat_buf)) {
|
|
msg_len = (int)sizeof(heartbeat_buf) - 1;
|
|
}
|
|
HAL_UART_Transmit(&huart1, (uint8_t *)heartbeat_buf, (uint16_t)msg_len,
|
|
HAL_MAX_DELAY);
|
|
}
|
|
last_toggle_timestamp = HAL_GetTick();
|
|
}
|
|
|
|
/* Check if data received from UART2 */
|
|
if (rx_complete) {
|
|
rx_complete = 0;
|
|
|
|
/* Print received buffer as hex to UART1 */
|
|
char hex_buf[64];
|
|
int hex_len = snprintf(hex_buf, sizeof(hex_buf), "RX: ");
|
|
for (int i = 0; i < (int)sizeof(rx_buf) && hex_len < (int)sizeof(hex_buf) - 4; i++) {
|
|
hex_len += snprintf(hex_buf + hex_len, sizeof(hex_buf) - hex_len, "%02X ", rx_buf[i]);
|
|
}
|
|
hex_len += snprintf(hex_buf + hex_len, sizeof(hex_buf) - hex_len, "\r\n");
|
|
HAL_UART_Transmit(&huart1, (uint8_t *)hex_buf, (uint16_t)hex_len, HAL_MAX_DELAY);
|
|
|
|
/* Re-arm UART2 reception */
|
|
HAL_UART_Receive_IT(&huart2, rx_buf, sizeof(rx_buf));
|
|
}
|
|
/* 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_SCALE2);
|
|
|
|
/** 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 = 8;
|
|
RCC_OscInitStruct.PLL.PLLN = 192;
|
|
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
|
|
RCC_OscInitStruct.PLL.PLLQ = 4;
|
|
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_DIV1;
|
|
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
|
|
|
|
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_PLLCLK, RCC_MCODIV_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 */
|
|
|
|
}
|
|
|
|
/**
|
|
* @brief USART2 Initialization Function
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void MX_USART2_UART_Init(void)
|
|
{
|
|
|
|
/* USER CODE BEGIN USART2_Init 0 */
|
|
|
|
/* USER CODE END USART2_Init 0 */
|
|
|
|
/* USER CODE BEGIN USART2_Init 1 */
|
|
|
|
/* USER CODE END USART2_Init 1 */
|
|
huart2.Instance = USART2;
|
|
huart2.Init.BaudRate = 115200;
|
|
huart2.Init.WordLength = UART_WORDLENGTH_8B;
|
|
huart2.Init.StopBits = UART_STOPBITS_1;
|
|
huart2.Init.Parity = UART_PARITY_NONE;
|
|
huart2.Init.Mode = UART_MODE_TX_RX;
|
|
huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
|
|
huart2.Init.OverSampling = UART_OVERSAMPLING_16;
|
|
if (HAL_UART_Init(&huart2) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
/* USER CODE BEGIN USART2_Init 2 */
|
|
|
|
/* USER CODE END USART2_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_GPIOC_CLK_ENABLE();
|
|
__HAL_RCC_GPIOH_CLK_ENABLE();
|
|
__HAL_RCC_GPIOA_CLK_ENABLE();
|
|
__HAL_RCC_GPIOB_CLK_ENABLE();
|
|
|
|
/*Configure GPIO pin Output Level */
|
|
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_SET);
|
|
|
|
/*Configure GPIO pin : PA8 */
|
|
GPIO_InitStruct.Pin = GPIO_PIN_8;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStruct.Alternate = GPIO_AF0_MCO;
|
|
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
|
|
|
/*Configure GPIO pin : PB6 */
|
|
GPIO_InitStruct.Pin = GPIO_PIN_6;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
|
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
|
|
|
/* USER CODE BEGIN MX_GPIO_Init_2 */
|
|
|
|
/* USER CODE END MX_GPIO_Init_2 */
|
|
}
|
|
|
|
/* USER CODE BEGIN 4 */
|
|
|
|
/**
|
|
* @brief Rx Transfer completed callback
|
|
* @param huart: UART handle
|
|
* @retval None
|
|
*/
|
|
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
|
|
{
|
|
if (huart->Instance == USART2) {
|
|
rx_complete = 1;
|
|
}
|
|
}
|
|
|
|
/* 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 */
|