標(biāo)題: STM32F4 HAL_PWM測頻程序 [打印本頁]
作者: zlkj    時間: 2024-10-8 16:09
標(biāo)題: STM32F4 HAL_PWM測頻程序
  1. int main(void)
  2. {
  3.   /* USER CODE BEGIN 1 */
  4.         uint8_t i=1;
  5.   /* USER CODE END 1 */

  7.   /* MCU Configuration----------------------------------------------------------*/

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

  12.   /* USER CODE BEGIN Init */

  14.   /* USER CODE END Init */

  16.   /* Configure the system clock */
  17.   SystemClock_Config();

  19.   /* USER CODE BEGIN SysInit */

  21.   /* USER CODE END SysInit */

  23.   /* Initialize all configured peripherals */
  24.   MX_GPIO_Init();
  25.   MX_USART3_UART_Init();
  26.   MX_USB_OTG_FS_PCD_Init();
  27.   MX_TIM10_Init();
  28.   MX_TIM2_Init();
  29.   /* USER CODE BEGIN 2 */
  30.         HAL_UART_Receive_IT(&huart3,&rxbuf,1);
  31.         HAL_TIM_PWM_Start(&htim10,TIM_CHANNEL_1);
  32.         HAL_TIM_IC_Start_IT(&htim2,TIM_CHANNEL_1);
  33.         HAL_TIM_IC_Start_IT(&htim2,TIM_CHANNEL_2);
  34.        
  35. //        PWM_ChangeDuty(20);
  36.   /* USER CODE END 2 */

  38.   /* Infinite loop */
  39.   /* USER CODE BEGIN WHILE */
  40.   while (1)
  41.   {

  43.   /* USER CODE END WHILE */

  45.   /* USER CODE BEGIN 3 */
  46.         PWM_ChangeDuty(i);
  47.         HAL_Delay(100);
  48. //        PWM_ChangeDutyTest();
  49.         printf("PWM_Freq is %.4f\n",Freq_Capture);
  50.         printf("PWM_Duty is %.4f\n",PWM_Duty);
  51.         i++;
  52.         if(i>99)
  53.         {
  54.                 i=1;
  55.         }
  56.   }
  57.   /* USER CODE END 3 */

  59. }
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原理圖: 無
仿真: 無
代碼: STM32F4_PWM.7z (318.59 KB, 下載次數(shù): 7)




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