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標題: STM32 CUBEMX-usart+led程序 學習的步伐繼續 [打印本頁]
作者: 柱子111    時間: 2019-5-14 15:00
標題: STM32 CUBEMX-usart+led程序 學習的步伐繼續
之前因為事情拉下了一段時間現在繼續跟上
使用軟件：stm32cubemx+mdk5
硬件平臺：stm32f407
接上一個帖子
見證自己一步步學習的步伐



單片機源程序如下:
  1. /* Includes ------------------------------------------------------------------*/
  2. #include "stm32f4xx_hal.h"
  3. #include "usart.h"
  4. #include "gpio.h"

  6. /* USER CODE BEGIN Includes */

  8. /* USER CODE END Includes */

  10. /* Private variables ---------------------------------------------------------*/

  12. /* USER CODE BEGIN PV */
  13. /* Private variables ---------------------------------------------------------*/

  15. /* USER CODE END PV */

  17. /* Private function prototypes -----------------------------------------------*/
  18. void SystemClock_Config(void);

  20. /* USER CODE BEGIN PFP */
  21. /* Private function prototypes -----------------------------------------------*/

  23. /* USER CODE END PFP */

  25. /* USER CODE BEGIN 0 */

  27. /* USER CODE END 0 */

  29. int main(void)
  30. {

  32.   /* USER CODE BEGIN 1 */
  33. uint8_t  tx_buf[]="USART TEST\r\n";
  34.   /* USER CODE END 1 */

  36.   /* MCU Configuration----------------------------------------------------------*/

  38.   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  39.   HAL_Init();

  41.   /* Configure the system clock */
  42.   SystemClock_Config();

  44.   /* Initialize all configured peripherals */
  45.   MX_GPIO_Init();
  46.   MX_USART1_UART_Init();

  48.   /* USER CODE BEGIN 2 */

  50.   /* USER CODE END 2 */

  52.   /* Infinite loop */
  53.   /* USER CODE BEGIN WHILE */
  54.   while (1)
  55.   {
  56.   /* USER CODE END WHILE */

  58.   /* USER CODE BEGIN 3 */
  59.         HAL_UART_Transmit(&huart1,"Hello!\r\n",8,10);
  60.                 HAL_Delay(1000);
  61.                         HAL_UART_Transmit(&huart1,tx_buf,12,10);
  62.                 HAL_Delay(1000);
  63.                
  64.   }
  65.   /* USER CODE END 3 */

  67. }

  69. /** System Clock Configuration
  70. */
  71. void SystemClock_Config(void)
  72. {

  74.   RCC_OscInitTypeDef RCC_OscInitStruct;
  75.   RCC_ClkInitTypeDef RCC_ClkInitStruct;

  77.   __HAL_RCC_PWR_CLK_ENABLE();

  79.   __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  81.   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  82.   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  83.   RCC_OscInitStruct.HSICalibrationValue = 16;
  84.   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  85.   HAL_RCC_OscConfig(&RCC_OscInitStruct);

  87.   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
  88.                               |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  89.   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
  90.   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  91.   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  92.   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  93.   HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);

  95.   HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);

  97.   HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

  99.   /* SysTick_IRQn interrupt configuration */
  100.   HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
  101. }

  103. /* USER CODE BEGIN 4 */

  105. /* USER CODE END 4 */

  107. #ifdef USE_FULL_ASSERT

  109. /**
  110.    * @brief Reports the name of the source file and the source line number
  111.    * where the assert_param error has occurred.
  112.    * @param file: pointer to the source file name
  113.    * @param line: assert_param error line source number
  114.    * @retval None
  115.    */
  116. void assert_failed(uint8_t* file, uint32_t line)
  117. {
  118.   /* USER CODE BEGIN 6 */
  119.   /* User can add his own implementation to report the file name and line number,
  120.     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  121.   /* USER CODE END 6 */

  123. }

  125. #endif

  127. /**
  128.   * @}
  129.   */

  131. /**
  132.   * @}
  133. */

  135. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
復制代碼

所有資料51hei提供下載:
USART.7z (287.45 KB, 下載次數: 12)






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