/* USER CODE BEGIN Header */ /**   ******************************************************************************   * @file           : main.c   * @brief          : Main program body   ******************************************************************************   * @attention   *   * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.   * All rights reserved.</center></h2>   *   * This software component is licensed by ST under BSD 3-Clause license,   * the "License"; You may not use this file except in compliance with the   * License. You may obtain a copy of the License at:   *                        opensource.org/licenses/BSD-3-Clause   *   ******************************************************************************   */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.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 ---------------------------------------------------------*/ UART_HandleTypeDef huart5; DMA_HandleTypeDef hdma_uart5_rx; DMA_HandleTypeDef hdma_uart5_tx; /* USER CODE BEGIN PV */ /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_DMA_Init(void); static void MX_UART5_Init(void); /* 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 */ /* USART1 init function */         unsigned char  utx_TX[4]={0x58, 0x01, 0x0D};         unsigned char  utx_TX1[4]={0x50, 0x30, 0x30, 0x0D};         /*unsigned char  utx_TX2[4]={0x50, 0x30, 0x31, 0x0D};         unsigned char  utx_TX3[4]={0x50, 0x30, 0x32, 0x0D};         unsigned char  utx_TX4[4]={0x50, 0x30, 0x33, 0x0D};         unsigned char  utx_TX5[4]={0x50, 0x30, 0x34, 0x0D};         unsigned char  utx_TX6[4]={0x50, 0x30, 0x35, 0x0D};*/   /* 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_DMA_Init();   MX_UART5_Init();   /* USER CODE BEGIN 2 */   /* USER CODE END 2 */   /* Infinite loop */   /* USER CODE BEGIN WHILE */   while (1)   {     /* USER CODE END WHILE */     /* USER CODE BEGIN 3 */                 /*HAL_UART_Transmit_DMA(&huart1, utx_TX1, sizeof(utx_TX1)-1);         HAL_Delay(100);                 HAL_UART_Transmit_DMA(&huart1, utx_TX2, sizeof(utx_TX1)-1);         HAL_Delay(100);*/                 HAL_UART_Transmit_DMA(&huart5, utx_TX1, sizeof(utx_TX1));         HAL_Delay(1000);                 /*HAL_UART_Transmit_DMA(&huart1, utx_TX4, sizeof(utx_TX1)-1);         HAL_Delay(100);                 HAL_UART_Transmit_DMA(&huart1, utx_TX5, sizeof(utx_TX1)-1);         HAL_Delay(100);                 HAL_UART_Transmit_DMA(&huart1, utx_TX6, sizeof(utx_TX1)-1);         HAL_Delay(100);*/   }   /* USER CODE END 3 */ } /**   * @brief System Clock Configuration   * @retval None   */ void SystemClock_Config(void) {   RCC_OscInitTypeDef RCC_OscInitStruct = {0};   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};   RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};   /** Configure LSE Drive Capability    */   HAL_PWR_EnableBkUpAccess();   /** Configure the main internal regulator output voltage    */   __HAL_RCC_PWR_CLK_ENABLE();   __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);   /** Initializes the CPU, AHB and APB busses clocks    */   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 = 96;   RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;   RCC_OscInitStruct.PLL.PLLQ = 4;   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)   {     Error_Handler();   }   /** Activate the Over-Drive mode    */   if (HAL_PWREx_EnableOverDrive() != HAL_OK)   {     Error_Handler();   }   /** Initializes the CPU, AHB and APB busses 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_3) != HAL_OK)   {     Error_Handler();   }   PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_UART5;   PeriphClkInitStruct.Uart5ClockSelection = RCC_UART5CLKSOURCE_PCLK1;   if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)   {     Error_Handler();   } } /**   * @brief UART5 Initialization Function   * @param None   * @retval None   */ static void MX_UART5_Init(void) {   /* USER CODE BEGIN UART5_Init 0 */   /* USER CODE END UART5_Init 0 */   /* USER CODE BEGIN UART5_Init 1 */   /* USER CODE END UART5_Init 1 */   huart5.Instance = UART5;   huart5.Init.BaudRate = 9600;   huart5.Init.WordLength = UART_WORDLENGTH_8B;   huart5.Init.StopBits = UART_STOPBITS_1;   huart5.Init.Parity = UART_PARITY_NONE;   huart5.Init.Mode = UART_MODE_TX_RX;   huart5.Init.HwFlowCtl = UART_HWCONTROL_NONE;   huart5.Init.OverSampling = UART_OVERSAMPLING_16;   huart5.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;   huart5.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;   if (HAL_UART_Init(&huart5) != HAL_OK)   {     Error_Handler();   }   /* USER CODE BEGIN UART5_Init 2 */   /* USER CODE END UART5_Init 2 */ } /**    * Enable DMA controller clock   */ static void MX_DMA_Init(void)  {   /* DMA controller clock enable */   __HAL_RCC_DMA1_CLK_ENABLE();   /* DMA interrupt init */   /* DMA1_Stream0_IRQn interrupt configuration */   HAL_NVIC_SetPriority(DMA1_Stream0_IRQn, 0, 0);   HAL_NVIC_EnableIRQ(DMA1_Stream0_IRQn);   /* DMA1_Stream7_IRQn interrupt configuration */   HAL_NVIC_SetPriority(DMA1_Stream7_IRQn, 0, 0);   HAL_NVIC_EnableIRQ(DMA1_Stream7_IRQn); } /**   * @brief GPIO Initialization Function   * @param None   * @retval None   */ static void MX_GPIO_Init(void) {   /* GPIO Ports Clock Enable */   __HAL_RCC_GPIOC_CLK_ENABLE();   __HAL_RCC_GPIOH_CLK_ENABLE();   __HAL_RCC_GPIOA_CLK_ENABLE();   __HAL_RCC_GPIOB_CLK_ENABLE(); } /* USER CODE BEGIN 4 */ /* USER CODE END 4 */ /**   * @brief  Period elapsed callback in non blocking mode   * @note   This function is called  when TIM7 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 == TIM7) {     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 */   /* 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,      tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */   /* USER CODE END 6 */ } #endif /* USE_FULL_ASSERT */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/  

請問哪裡可以下載您教學CODE??

:victory:{:1_137:}:victory::victory:

來看看

好好來學習一番