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標題: STM32F103驅動超聲波程序（HAL庫版）TM1640顯示 [打印本頁]
作者: 天藍色的Toto    時間: 2021-2-13 01:53
標題: STM32F103驅動超聲波程序（HAL庫版）TM1640顯示
又是很無聊，弄了個超聲波出來，主要運用定時器TIM2_CH1捕獲，TM1640顯示

超聲波：TRIG:PA1   ECHO:PA0
TM1640:SCLK:PA11  SDIO:PA12
單位：厘米

制作出來的實物圖如下：


單片機源程序如下:

  2. /* Includes ------------------------------------------------------------------*/
  3. #include "main.h"
  4. #include "tim.h"
  5. #include "gpio.h"
  6. #include "tm1640.h"
  7. /* Private includes ----------------------------------------------------------*/
  8. /* USER CODE BEGIN Includes */

  10. /* USER CODE END Includes */

  12. /* Private typedef -----------------------------------------------------------*/
  13. /* USER CODE BEGIN PTD */

  15. /* USER CODE END PTD */

  17. /* Private define ------------------------------------------------------------*/
  18. /* USER CODE BEGIN PD */
  19. /* USER CODE END PD */

  21. /* Private macro -------------------------------------------------------------*/
  22. /* USER CODE BEGIN PM */

  24. /* USER CODE END PM */

  26. /* Private variables ---------------------------------------------------------*/

  28. /* USER CODE BEGIN PV */

  30. /* USER CODE END PV */

  32. /* Private function prototypes -----------------------------------------------*/
  33. void SystemClock_Config(void);
  34. /* USER CODE BEGIN PFP */

  36. /* USER CODE END PFP */

  38. /* Private user code ---------------------------------------------------------*/
  39. /* USER CODE BEGIN 0 */
  40. uint32_t capture_Buf[3] = {0};   //存放計數值
  41. uint8_t capture_Cnt = 0;    //狀態標志位
  42. uint32_t high_time;   //高電平時間
  43. /* USER CODE END 0 */

  45. /**
  46.   * @brief  The application entry point.
  47.   * @retval int
  48.   */
  49. int main(void)
  50. {
  51.   /* USER CODE BEGIN 1 */
  52.         uint8_t i;
  53.   /* USER CODE END 1 */

  55.   /* MCU Configuration--------------------------------------------------------*/

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

  60.   /* USER CODE BEGIN Init */

  62.   /* USER CODE END Init */

  64.   /* Configure the system clock */
  65.   SystemClock_Config();

  67.   /* USER CODE BEGIN SysInit */

  69.   /* USER CODE END SysInit */

  71.   /* Initialize all configured peripherals */
  72.   MX_GPIO_Init();
  73.   MX_TIM2_Init();
  74.   /* USER CODE BEGIN 2 */
  75.         TM1640_Init();
  76.   /* USER CODE END 2 */

  78.   /* Infinite loop */
  79.   /* USER CODE BEGIN WHILE */
  80.   while (1)
  81.   {
  82.     /* USER CODE END WHILE */
  83. switch (capture_Cnt){
  84.                 case 0:
  85.                 capture_Cnt++;
  86.                 i=200;
  87.                 HAL_GPIO_WritePin(TRIG_GPIO_Port,TRIG_Pin,GPIO_PIN_SET);
  88.                 while(i--);
  89.                 HAL_GPIO_WritePin(TRIG_GPIO_Port,TRIG_Pin,GPIO_PIN_RESET);
  90.                 __HAL_TIM_SET_CAPTUREPOLARITY(&htim2, TIM_CHANNEL_1, TIM_INPUTCHANNELPOLARITY_RISING);
  91.                 HAL_TIM_IC_Start_IT(&htim2, TIM_CHANNEL_1);        //啟動輸入捕獲       或者: __HAL_TIM_ENABLE(&htim5);

  93.                 break;
  94.                 case 3:
  95.                 high_time = capture_Buf[1]- capture_Buf[0];    //高電平時間
  96.                 //HAL_UART_Transmit(&huart1, (uint8_t *)high_time, 1, 0xffff);   //發送高電平時間
  97.                 high_time*=17;
  98.                 TM1640_display(0,high_time%1000000/100000);
  99.                 TM1640_display(1,high_time%100000/10000);
  100.                 TM1640_display(2,high_time%10000/1000+10);
  101.                 TM1640_display(3,high_time%1000/100);
  102.                 TM1640_display(4,high_time%100/10);
  103.                 TM1640_display(5,high_time%10);
  104.                 HAL_Delay(400);   //延時1S
  105.                 capture_Cnt = 0;  //清空標志位
  106.                 break;

  108.     /* USER CODE BEGIN 3 */
  109.   }
  110.   /* USER CODE END 3 */
  111. }
  112. }
  113. /**
  114.   * @brief System Clock Configuration
  115.   * @retval None
  116.   */
  117. void SystemClock_Config(void)
  118. {
  119.   RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  120.   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  122.   /** Initializes the RCC Oscillators according to the specified parameters
  123.   * in the RCC_OscInitTypeDef structure.
  124.   */
  125.   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  126.   RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  127.   RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  128.   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  129.   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  130.   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  131.   RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  132.   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  133.   {
  134.     Error_Handler();
  135.   }
  136.   /** Initializes the CPU, AHB and APB buses clocks
  137.   */
  138.   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
  139.                               |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  140.   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  141.   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  142.   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  143.   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  145.   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  146.   {
  147.     Error_Handler();
  148.   }
  149.   /** Enables the Clock Security System
  150.   */
  151.   HAL_RCC_EnableCSS();
  152. }

  154. /* USER CODE BEGIN 4 */

  156. /* USER CODE END 4 */

  158. /**
  159.   * @brief  This function is executed in case of error occurrence.
  160.   * @retval None
  161.   */
  162. void Error_Handler(void)
  163. {
  164.   /* USER CODE BEGIN Error_Handler_Debug */
  165.   /* User can add his own implementation to report the HAL error return state */
  166.   __disable_irq();
  167.   while (1)
  168.   {
  169.   }
  170.   /* USER CODE END Error_Handler_Debug */
  171. }

  173. #ifdef  USE_FULL_ASSERT
  174. /**
  175.   * @brief  Reports the name of the source file and the source line number
  176.   *         where the assert_param error has occurred.
  177.   * @param  file: pointer to the source file name
  178.   * @param  line: assert_param error line source number
  179.   * @retval None
  180.   */
  181. void assert_failed(uint8_t *file, uint32_t line)
  182. {
  183.   /* USER CODE BEGIN 6 */
  184.   /* User can add his own implementation to report the file name and line number,
  185.      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  186.   /* USER CODE END 6 */
  187. }
  188. #endif /* USE_FULL_ASSERT */

  190. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  191. void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
  192. {
  193.        
  194.         if(TIM2 == htim->Instance)
  195.         {
  196.                                 switch(capture_Cnt){
  197.                                 case 1:
  198.                                 capture_Buf[0] = HAL_TIM_ReadCapturedValue(&htim2,TIM_CHANNEL_1);//獲取當前的捕獲值.
  199.                                 __HAL_TIM_SET_CAPTUREPOLARITY(&htim2,TIM_CHANNEL_1,TIM_ICPOLARITY_FALLING);  //設置為下降沿捕獲
  200.                                 capture_Cnt++;
  201.                                 break;
  202.                                 case 2:
  203.                                 capture_Buf[1] = HAL_TIM_ReadCapturedValue(&htim2,TIM_CHANNEL_1);//獲取當前的捕獲值.
  204.                                 HAL_TIM_IC_Stop_IT(&htim2,TIM_CHANNEL_1); //停止捕獲   或者: __HAL_TIM_DISABLE(&htim5);
  205.                                 capture_Cnt++;   
  206.                 }
  207.        
  208.         }
  209.        
  210. }
復制代碼

程序51hei提供下載:
buhuo_chaoshengbo.7z (5.14 MB, 下載次數: 22)

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提取碼：ly45






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