PWM配置
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    时钟配置
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    代码

    1. /* USER CODE BEGIN Header */
    2. /**
    3.   ******************************************************************************
    4.   * @file           : main.c
    5.   * @brief          : Main program body
    6.   ******************************************************************************
    7.   * @attention
    8.   *
    9.   * Copyright (c) 2022 STMicroelectronics.
    10.   * All rights reserved.
    11.   *
    12.   * This software is licensed under terms that can be found in the LICENSE file
    13.   * in the root directory of this software component.
    14.   * If no LICENSE file comes with this software, it is provided AS-IS.
    15.   *
    16.   ******************************************************************************
    17.   */
    18. /* USER CODE END Header */
    19. /* Includes ------------------------------------------------------------------*/
    20. #include "main.h"
    21. #include "tim.h"
    22. #include "gpio.h"
    24. /* Private includes ----------------------------------------------------------*/
    25. /* USER CODE BEGIN Includes */
    27. /* USER CODE END Includes */
    29. /* Private typedef -----------------------------------------------------------*/
    30. /* USER CODE BEGIN PTD */
    32. /* USER CODE END PTD */
    34. /* Private define ------------------------------------------------------------*/
    35. /* USER CODE BEGIN PD */
    37. /* USER CODE END PD */
    39. /* Private macro -------------------------------------------------------------*/
    40. /* USER CODE BEGIN PM */
    42. /* USER CODE END PM */
    44. /* Private variables ---------------------------------------------------------*/
    46. /* USER CODE BEGIN PV */
    48. /* USER CODE END PV */
    50. /* Private function prototypes -----------------------------------------------*/
    51. void SystemClock_Config(void);
    52. /* USER CODE BEGIN PFP */
    54. /* USER CODE END PFP */
    56. /* Private user code ---------------------------------------------------------*/
    57. /* USER CODE BEGIN 0 */
    58. void Servo_SetAngle(float Angle);
    60. /* USER CODE END 0 */
    62. /**
    63.   * @brief  The application entry point.
    64.   * @retval int
    65.   */
    66. int main(void)
    67. {
    68.   /* USER CODE BEGIN 1 */
    69.     float Angle;
    72.   /* USER CODE END 1 */
    74.   /* MCU Configuration--------------------------------------------------------*/
    76.   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    77.   HAL_Init();
    79.   /* USER CODE BEGIN Init */
    81.   /* USER CODE END Init */
    83.   /* Configure the system clock */
    84.   SystemClock_Config();
    86.   /* USER CODE BEGIN SysInit */
    88.   /* USER CODE END SysInit */
    90.   /* Initialize all configured peripherals */
    91.   MX_GPIO_Init();
    92.   MX_TIM3_Init();
    93.   /* USER CODE BEGIN 2 */
    94.   HAL_TIM_PWM_Start(&htim3,TIM_CHANNEL_1);
    98.   /* USER CODE END 2 */
    100.   /* Infinite loop */
    101.   /* USER CODE BEGIN WHILE */
    102.   while (1)
    103.   {
    104.     /* USER CODE END WHILE */
    106.     /* USER CODE BEGIN 3 */
    108.       if (HAL_GPIO_ReadPin(KEY_GPIO_Port,KEY_Pin) == 1)
    109.       {
    110.           HAL_Delay(100);
    111.           if (HAL_GPIO_ReadPin(KEY_GPIO_Port,KEY_Pin) == 1)
    112.           {
    113.               Angle += 30;
    114.               if (Angle > 180)
    115.               {
    116.                   Angle = 0;
    117.               }
    118.               Servo_SetAngle(Angle);
    119.           }
    121.       }
    124.   }
    125.   /* USER CODE END 3 */
    126. }
    128. /**
    129.   * @brief System Clock Configuration
    130.   * @retval None
    131.   */
    132. void SystemClock_Config(void)
    133. {
    134.   RCC_OscInitTypeDef RCC_OscInitStruct = {0};
    135.   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
    137.   /** Configure the main internal regulator output voltage
    138.   */
    139.   __HAL_RCC_PWR_CLK_ENABLE();
    140.   __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
    142.   /** Initializes the RCC Oscillators according to the specified parameters
    143.   * in the RCC_OscInitTypeDef structure.
    144.   */
    145.   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
    146.   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    147.   RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
    148.   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    149.   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
    150.   RCC_OscInitStruct.PLL.PLLM = 16;
    151.   RCC_OscInitStruct.PLL.PLLN = 144;
    152.   RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
    153.   RCC_OscInitStruct.PLL.PLLQ = 4;
    154.   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    155.   {
    156.     Error_Handler();
    157.   }
    159.   /** Initializes the CPU, AHB and APB buses clocks
    160.   */
    161.   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
    162.                               |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
    163.   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
    164.   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
    165.   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
    166.   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
    168.   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
    169.   {
    170.     Error_Handler();
    171.   }
    172. }
    174. /* USER CODE BEGIN 4 */
    176. void Servo_SetAngle(float Angle) {
    177.     __HAL_TIM_SetCompare(&htim3, TIM_CHANNEL_1,Angle / 180 * 2000 + 500);
    178. }
    181. /* USER CODE END 4 */
    183. /**
    184.   * @brief  This function is executed in case of error occurrence.
    185.   * @retval None
    186.   */
    187. void Error_Handler(void)
    188. {
    189.   /* USER CODE BEGIN Error_Handler_Debug */
    190.   /* User can add his own implementation to report the HAL error return state */
    191.   __disable_irq();
    192.   while (1)
    193.   {
    194.   }
    195.   /* USER CODE END Error_Handler_Debug */
    196. }
    198. #ifdef  USE_FULL_ASSERT
    199. /**
    200.   * @brief  Reports the name of the source file and the source line number
    201.   *         where the assert_param error has occurred.
    202.   * @param  file: pointer to the source file name
    203.   * @param  line: assert_param error line source number
    204.   * @retval None
    205.   */
    206. void assert_failed(uint8_t *file, uint32_t line)
    207. {
    208.   /* USER CODE BEGIN 6 */
    209.   /* User can add his own implementation to report the file name and line number,
    210.      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
    211.   /* USER CODE END 6 */
    212. }
    213. #endif /* USE_FULL_ASSERT */