21ic电子技术开发论坛 › 单片机与嵌入式系统 › ST MCU › 【NUCLEO-U575ZI-Q测评】PWM
返回列表 发新帖我要提问

[STM32U5] 【NUCLEO-U575ZI-Q测评】PWM

[复制链接]
721|9
 楼主| 比神乐 发表于 2023-2-24 12:40 | 显示全部楼层 |阅读模式
NUC, Nucleo, PWM
今天搞了一下PWM，定时器一(也就是定时器A)的几个通道，用的例程。原理图：
4.jpg
代码：
复制
  1. #include "main.h"
    


  2. 

  3. /* Private includes ----------------------------------------------------------*/
    

  4. /* USER CODE BEGIN Includes */
    


  5. 

  6. /* USER CODE END Includes */
    


  7. 

  8. /* Private typedef -----------------------------------------------------------*/
    

  9. /* USER CODE BEGIN PTD */
    


  10. 

  11. /* USER CODE END PTD */
    


  12. 

  13. /* Private define ------------------------------------------------------------*/
    

  14. /* USER CODE BEGIN PD */
    


  15. 

  16. /* USER CODE END PD */
    


  17. 

  18. /* Private macro -------------------------------------------------------------*/
    

  19. /* USER CODE BEGIN PM */
    


  20. 

  21. /* USER CODE END PM */
    


  22. 

  23. /* Private variables ---------------------------------------------------------*/
    


  24. 

  25. TIM_HandleTypeDef htim1;
    


  26. 

  27. /* USER CODE BEGIN PV */
    


  28. 

  29. /* USER CODE END PV */
    


  30. 

  31. /* Private function prototypes -----------------------------------------------*/
    

  32. void SystemClock_Config(void);
    

  33. static void SystemPower_Config(void);
    

  34. static void MX_GPIO_Init(void);
    

  35. static void MX_ICACHE_Init(void);
    

  36. static void MX_TIM1_Init(void);
    

  37. /* USER CODE BEGIN PFP */
    


  38. 

  39. /* USER CODE END PFP */
    


  40. 

  41. /* Private user code ---------------------------------------------------------*/
    

  42. /* USER CODE BEGIN 0 */
    


  43. 

  44. /* USER CODE END 0 */
    


  45. 

  46. /**
    

  47.   * [url=home.php?mod=space&uid=247401]@brief[/url]  The application entry point.
    

  48.   * @retval int
    

  49.   */
    

  50. int main(void)
    

  51. {
    

  52.   /* USER CODE BEGIN 1 */
    

  53.   
    

  54.   /* STM32U5xx HAL library initialization:
    

  55.        - Configure the Flash prefetch
    

  56.        - Configure the Systick to generate an interrupt each 1 msec
    

  57.        - Set NVIC Group Priority to 3
    

  58.        - Low Level Initialization
    

  59.      */
    

  60.   /* USER CODE END 1 */
    


  61. 

  62.   /* MCU Configuration--------------------------------------------------------*/
    


  63. 

  64.   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    

  65.   HAL_Init();
    


  66. 

  67.   /* USER CODE BEGIN Init */
    


  68. 

  69.   /* USER CODE END Init */
    


  70. 

  71.   /* Configure the system clock */
    

  72.   SystemClock_Config();
    


  73. 

  74.   /* Configure the System Power */
    

  75.   SystemPower_Config();
    


  76. 

  77.   /* USER CODE BEGIN SysInit */
    


  78. 

  79.   /* Configure LED3 */
    

  80.   BSP_LED_Init(LED3);
    


  81. 

  82.   /* USER CODE END SysInit */
    


  83. 

  84.   /* Initialize all configured peripherals */
    

  85.   MX_GPIO_Init();
    

  86.   MX_ICACHE_Init();
    

  87.   MX_TIM1_Init();
    

  88.   /* USER CODE BEGIN 2 */
    


  89. 

  90. /*## Start PWM signals generation #######################################*/
    

  91.   /* Start channel 1 */
    

  92.   if (HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1) != HAL_OK)
    

  93.   {
    

  94.     /* PWM Generation Error */
    

  95.     Error_Handler();
    

  96.   }
    

  97.   /* Start channel 2 */
    

  98.   if (HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_2) != HAL_OK)
    

  99.   {
    

  100.     /* PWM Generation Error */
    

  101.     Error_Handler();
    

  102.   }
    

  103.   /* Start channel 3 */
    

  104.   if (HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_3) != HAL_OK)
    

  105.   {
    

  106.     /* PWM generation Error */
    

  107.     Error_Handler();
    

  108.   }
    

  109.   /* Start channel 4 */
    

  110.   if (HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_4) != HAL_OK)
    

  111.   {
    

  112.     /* PWM generation Error */
    

  113.     Error_Handler();
    

  114.   }
    


  115. 

  116.   /* USER CODE END 2 */
    


  117. 

  118.   /* Infinite loop */
    

  119.   /* USER CODE BEGIN WHILE */
    

  120.   while (1)
    

  121.   {
    

  122.     /* USER CODE END WHILE */
    


  123. 

  124.     /* USER CODE BEGIN 3 */
    


  125. 

  126.   }
    

  127.   /* USER CODE END 3 */
    

  128. }
    


  129. 

  130. /**
    

  131.   * @brief System Clock Configuration
    

  132.   * @retval None
    

  133.   */
    

  134. void SystemClock_Config(void)
    

  135. {
    

  136.   RCC_OscInitTypeDef RCC_OscInitStruct = {0};
    

  137.   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
    


  138. 

  139.   /** Configure the main internal regulator output voltage
    

  140.   */
    

  141.   if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
    

  142.   {
    

  143.     Error_Handler();
    

  144.   }
    


  145. 

  146.   /** Initializes the CPU, AHB and APB busses clocks
    

  147.   */
    

  148.   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
    

  149.   RCC_OscInitStruct.MSIState = RCC_MSI_ON;
    

  150.   RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
    

  151.   RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_4;
    

  152.   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    

  153.   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
    

  154.   RCC_OscInitStruct.PLL.PLLMBOOST = RCC_PLLMBOOST_DIV1;
    

  155.   RCC_OscInitStruct.PLL.PLLM = 1;
    

  156.   RCC_OscInitStruct.PLL.PLLN = 80;
    

  157.   RCC_OscInitStruct.PLL.PLLP = 2;
    

  158.   RCC_OscInitStruct.PLL.PLLQ = 2;
    

  159.   RCC_OscInitStruct.PLL.PLLR = 2;
    

  160.   RCC_OscInitStruct.PLL.PLLRGE = RCC_PLLVCIRANGE_0;
    

  161.   RCC_OscInitStruct.PLL.PLLFRACN = 0;
    

  162.   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    

  163.   {
    

  164.     Error_Handler();
    

  165.   }
    


  166. 

  167.   /** Initializes the CPU, AHB and APB busses clocks
    

  168.   */
    

  169.   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
    

  170.                               |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
    

  171.                               |RCC_CLOCKTYPE_PCLK3;
    

  172.   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
    

  173.   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
    

  174.   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
    

  175.   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
    

  176.   RCC_ClkInitStruct.APB3CLKDivider = RCC_HCLK_DIV1;
    


  177. 

  178.   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
    

  179.   {
    

  180.     Error_Handler();
    

  181.   }
    

  182. }
    


  183. 

  184. /**
    

  185.   * @brief Power Configuration
    

  186.   * @retval None
    

  187.   */
    

  188. static void SystemPower_Config(void)
    

  189. {
    


  190. 

  191.   /*
    

  192.    * Disable the internal Pull-Up in Dead Battery pins of UCPD peripheral
    

  193.    */
    

  194.   HAL_PWREx_DisableUCPDDeadBattery();
    


  195. 

  196.   /*
    

  197.    * Switch to SMPS regulator instead of LDO
    

  198.    */
    

  199.   if (HAL_PWREx_ConfigSupply(PWR_SMPS_SUPPLY) != HAL_OK)
    

  200.   {
    

  201.     Error_Handler();
    

  202.   }
    

  203. }
    


  204. 

  205. /**
    

  206.   * @brief ICACHE Initialization Function
    

  207.   * @param None
    

  208.   * @retval None
    

  209.   */
    

  210. static void MX_ICACHE_Init(void)
    

  211. {
    


  212. 

  213.   /* USER CODE BEGIN ICACHE_Init 0 */
    


  214. 

  215.   /* USER CODE END ICACHE_Init 0 */
    


  216. 

  217.   /* USER CODE BEGIN ICACHE_Init 1 */
    


  218. 

  219.   /* USER CODE END ICACHE_Init 1 */
    


  220. 

  221.   /** Enable instruction cache in 1-way (direct mapped cache)
    

  222.   */
    

  223.   if (HAL_ICACHE_ConfigAssociativityMode(ICACHE_1WAY) != HAL_OK)
    

  224.   {
    

  225.     Error_Handler();
    

  226.   }
    

  227.   if (HAL_ICACHE_Enable() != HAL_OK)
    

  228.   {
    

  229.     Error_Handler();
    

  230.   }
    

  231.   /* USER CODE BEGIN ICACHE_Init 2 */
    


  232. 

  233.   /* USER CODE END ICACHE_Init 2 */
    


  234. 

  235. }
    


  236. 

  237. /**
    

  238.   * @brief TIM1 Initialization Function
    

  239.   * @param None
    

  240.   * @retval None
    

  241.   */
    

  242. static void MX_TIM1_Init(void)
    

  243. {
    


  244. 

  245.   /* USER CODE BEGIN TIM1_Init 0 */
    


  246. 

  247.   /* USER CODE END TIM1_Init 0 */
    


  248. 

  249.   TIM_MasterConfigTypeDef sMasterConfig = {0};
    

  250.   TIM_OC_InitTypeDef sConfigOC = {0};
    

  251.   TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};
    


  252. 

  253.   /* USER CODE BEGIN TIM1_Init 1 */
    


  254. 

  255.   /* USER CODE END TIM1_Init 1 */
    

  256.   htim1.Instance = TIM1;
    

  257.   htim1.Init.Prescaler = PRESCALER_VALUE;
    

  258.   htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
    

  259.   htim1.Init.Period = PERIOD_VALUE;
    

  260.   htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
    

  261.   htim1.Init.RepetitionCounter = 0;
    

  262.   htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
    

  263.   if (HAL_TIM_PWM_Init(&htim1) != HAL_OK)
    

  264.   {
    

  265.     Error_Handler();
    

  266.   }
    

  267.   sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
    

  268.   sMasterConfig.MasterOutputTrigger2 = TIM_TRGO2_RESET;
    

  269.   sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
    

  270.   if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
    

  271.   {
    

  272.     Error_Handler();
    

  273.   }
    

  274.   sConfigOC.OCMode = TIM_OCMODE_PWM1;
    

  275.   sConfigOC.Pulse = PULSE1_VALUE;
    

  276.   sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
    

  277.   sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
    

  278.   sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
    

  279.   sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
    

  280.   sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
    

  281.   if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
    

  282.   {
    

  283.     Error_Handler();
    

  284.   }
    

  285.   sConfigOC.Pulse = PULSE2_VALUE;
    

  286.   if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
    

  287.   {
    

  288.     Error_Handler();
    

  289.   }
    

  290.   sConfigOC.Pulse = PULSE3_VALUE;
    

  291.   if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_3) != HAL_OK)
    

  292.   {
    

  293.     Error_Handler();
    

  294.   }
    

  295.   sConfigOC.Pulse = PULSE4_VALUE;
    

  296.   if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_4) != HAL_OK)
    

  297.   {
    

  298.     Error_Handler();
    

  299.   }
    

  300.   sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;
    

  301.   sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;
    

  302.   sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
    

  303.   sBreakDeadTimeConfig.DeadTime = 0;
    

  304.   sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
    

  305.   sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
    

  306.   sBreakDeadTimeConfig.BreakFilter = 0;
    

  307.   sBreakDeadTimeConfig.BreakAFMode = TIM_BREAK_AFMODE_INPUT;
    

  308.   sBreakDeadTimeConfig.Break2State = TIM_BREAK2_DISABLE;
    

  309.   sBreakDeadTimeConfig.Break2Polarity = TIM_BREAK2POLARITY_HIGH;
    

  310.   sBreakDeadTimeConfig.Break2Filter = 0;
    

  311.   sBreakDeadTimeConfig.Break2AFMode = TIM_BREAK_AFMODE_INPUT;
    

  312.   sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
    

  313.   if (HAL_TIMEx_ConfigBreakDeadTime(&htim1, &sBreakDeadTimeConfig) != HAL_OK)
    

  314.   {
    

  315.     Error_Handler();
    

  316.   }
    

  317.   /* USER CODE BEGIN TIM1_Init 2 */
    


  318. 

  319.   /* USER CODE END TIM1_Init 2 */
    

  320.   HAL_TIM_MspPostInit(&htim1);
    


  321. 

  322. }
    


  323. 

  324. /**
    

  325.   * @brief GPIO Initialization Function
    

  326.   * @param None
    

  327.   * @retval None
    

  328.   */
    

  329. static void MX_GPIO_Init(void)
    

  330. {
    


  331. 

  332.   /* GPIO Ports Clock Enable */
    

  333.   __HAL_RCC_GPIOE_CLK_ENABLE();
    


  334. 

  335. }
    


  336. 

  337. /* USER CODE BEGIN 4 */
    


  338. 

  339. /* USER CODE END 4 */
    


  340. 

  341. /**
    

  342.   * @brief  This function is executed in case of error occurrence.
    

  343.   * @retval None
    

  344.   */
    

  345. void Error_Handler(void)
    

  346. {
    

  347.   /* USER CODE BEGIN Error_Handler_Debug */
    

  348.   /* Turn LED3 on */
    

  349.   BSP_LED_On(LED3);
    

  350.   while(1) 
    

  351.   {
    

  352.   }
    

  353.   /* USER CODE END Error_Handler_Debug */
    

  354. }
    


  355. 

  356. #ifdef  USE_FULL_ASSERT
    

  357. /**
    

  358.   * @brief  Reports the name of the source file and the source line number
    

  359.   *         where the assert_param error has occurred.
    

  360.   * @param  file: pointer to the source file name
    

  361.   * @param  line: assert_param error line source number
    

  362.   * @retval None
    

  363.   */
    

  364. void assert_failed(uint8_t *file, uint32_t line)
    

  365. {
    

  366.   /* USER CODE BEGIN 6 */
    

  367.   /* User can add his own implementation to report the file name and line number,
    

  368.     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
    

  369.   /* Infinite loop */
    

  370.   while (1)
    

  371.   {
    

  372.   }
    


  373. 

  374.   /* USER CODE END 6 */
    

  375. }
    

  376. #endif /* USE_FULL_ASSERT */
效果图：
0.jpg 1.jpg 2.jpg 3.jpg
回复

收藏 举报

相关帖子
chenci2013 发表于 2023-5-14 20:42 | 显示全部楼层
stm32输出pwm频率是如何计算的
回复

收藏 举报

belindagraham 发表于 2023-5-18 14:49 | 显示全部楼层
输出的PWM最大频率是多少.               
回复

收藏 举报

 楼主| 比神乐 发表于 2023-5-18 19:30 | 显示全部楼层
chenci2013 发表于 2023-5-14 20:42
stm32输出pwm频率是如何计算的

没仔细看
回复

收藏 举报

 楼主| 比神乐 发表于 2023-5-18 19:30 | 显示全部楼层
belindagraham 发表于 2023-5-18 14:49
输出的PWM最大频率是多少.

不清楚
回复

收藏 举报

jkl21 发表于 2023-5-21 11:27 | 显示全部楼层
tm32 如何在每周期修改pwm占空比
回复

收藏 举报

mmbs 发表于 2023-5-21 14:36 | 显示全部楼层
NUCLEO-U575ZI可以产生几路PWM信号?能有六路吗?
回复

收藏 举报

tabmone 发表于 2023-5-21 15:23 | 显示全部楼层
输出的PWM最大频率是多少.               
回复

收藏 举报

bartonalfred 发表于 2023-5-21 16:29 | 显示全部楼层
stm32输出pwm,怎么控制直流电机的正反转?
回复

收藏 举报

 楼主| 比神乐 发表于 2023-5-22 06:48 | 显示全部楼层
bartonalfred 发表于 2023-5-21 16:29
stm32输出pwm,怎么控制直流电机的正反转?

PWM只能控制电机转速，无法控制电机正反转
回复

收藏 举报

返回列表 发新帖
高级模式
B Color Image Link Quote Code Smilies
您需要登录后才可以回帖 登录 | 注册

本版积分规则

比神乐

470

主题

3537

帖子

7

粉丝
快速回复 在线客服 返回列表 返回顶部