STM32F051C8 TIMER1 PWM NOT WORKING?

[shose]

HI

stm32f051 config with stmcubemx

but, timer1 and timer2 and timer3and16and17 not working for pwm generation

only timer15 good work

why????

[waclawek.jan]

Read out and check the content of the timer's registers, also check the content of registers of GPIOs related to the pins you want to use for PWM.

JW

[shose]

All are correct

please check my project

https://files.fm/u/3qu7579w#sign_up

or

https://easyupload.io/abccf6

[shose]

Nobody knows??!!

[berendi]

Nobody knows as long as you don't post the contents of the relevant timer and gpio registers.

Nobody is going to build a board just to test your code. Nobody knows the pinout of your system except you.

[shose]

int main(void)
{
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */
 
 
 /* MCU Configuration--------------------------------------------------------*/
 
 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
 HAL_Init();
 
 /* USER CODE BEGIN Init */
 
 /* USER CODE END Init */
 
 /* Configure the system clock */
 SystemClock_Config();
 
 /* USER CODE BEGIN SysInit */
 
 /* USER CODE END SysInit */
 
 /* Initialize all configured peripherals */
 MX_GPIO_Init();
 MX_TIM1_Init();
 MX_TIM16_Init();
 MX_TIM17_Init();
 MX_TIM2_Init();
 MX_TIM3_Init();
 MX_TIM15_Init();
 /* USER CODE BEGIN 2 */
	HAL_TIMEx_PWMN_Start(&htim1,TIM_CHANNEL_1);
	HAL_TIMEx_PWMN_Start(&htim1,TIM_CHANNEL_2);
	HAL_TIMEx_PWMN_Start(&htim1,TIM_CHANNEL_3);
	HAL_TIMEx_PWMN_Start(&htim1,TIM_CHANNEL_4);
	
	HAL_TIMEx_PWMN_Start(&htim2,TIM_CHANNEL_1);
	HAL_TIMEx_PWMN_Start(&htim2,TIM_CHANNEL_2);
	
	HAL_TIMEx_PWMN_Start(&htim3,TIM_CHANNEL_3);
	HAL_TIMEx_PWMN_Start(&htim3,TIM_CHANNEL_4);
	
	HAL_TIMEx_PWMN_Start(&htim15,TIM_CHANNEL_1);
	HAL_TIMEx_PWMN_Start(&htim16,TIM_CHANNEL_1);
	HAL_TIMEx_PWMN_Start(&htim17,TIM_CHANNEL_1);
	
	//__HAL_TIM_SET_COMPARE(&htim1,TIM_CHANNEL_1,pwm);
	//TIM1->CR1 |= 1;
	//TIM16->CR1 |= 1;
	//TIM17->CR1 |= 1;
 /* USER CODE END 2 */
 
 
 
 /* Infinite loop */
 /* USER CODE BEGIN WHILE */
 while (1)
 {
 /* USER CODE END WHILE */
 
 /* USER CODE BEGIN 3 */
 }
 /* USER CODE END 3 */
}
 
/**
 * @brief System Clock Configuration
 * @retval None
 */
void SystemClock_Config(void)
{
 RCC_OscInitTypeDef RCC_OscInitStruct = {0};
 RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
 
 /** Initializes the CPU, AHB and APB busses clocks 
 */
 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
 RCC_OscInitStruct.HSIState = RCC_HSI_ON;
 RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
 RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL12;
 RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1;
 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
 {
 Error_Handler();
 }
 /** Initializes the CPU, AHB and APB busses clocks 
 */
 RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
 |RCC_CLOCKTYPE_PCLK1;
 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
 RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
 
 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
 {
 Error_Handler();
 }
}
 
/**
 * @brief TIM1 Initialization Function
 * @param None
 * @retval None
 */
static void MX_TIM1_Init(void)
{
 
 /* USER CODE BEGIN TIM1_Init 0 */
 
 /* USER CODE END TIM1_Init 0 */
 
 TIM_ClockConfigTypeDef sClockSourceConfig = {0};
 TIM_MasterConfigTypeDef sMasterConfig = {0};
 TIM_OC_InitTypeDef sConfigOC = {0};
 TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};
 
 /* USER CODE BEGIN TIM1_Init 1 */
 
 /* USER CODE END TIM1_Init 1 */
 htim1.Instance = TIM1;
 htim1.Init.Prescaler = 0;
 htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
 htim1.Init.Period = 8191;
 htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
 htim1.Init.RepetitionCounter = 0;
 htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
 if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
 {
 Error_Handler();
 }
 sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
 if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_TIM_PWM_Init(&htim1) != HAL_OK)
 {
 Error_Handler();
 }
 sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
 sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
 if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
 {
 Error_Handler();
 }
 sConfigOC.OCMode = TIM_OCMODE_PWM1;
 sConfigOC.Pulse = 4096;
 sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
 sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
 sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
 sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
 sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
 if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_3) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_4) != HAL_OK)
 {
 Error_Handler();
 }
 sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_ENABLE;
 sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_ENABLE;
 sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
 sBreakDeadTimeConfig.DeadTime = 0;
 sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
 sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
 sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_ENABLE;
 if (HAL_TIMEx_ConfigBreakDeadTime(&htim1, &sBreakDeadTimeConfig) != HAL_OK)
 {
 Error_Handler();
 }
 /* USER CODE BEGIN TIM1_Init 2 */
 
 /* USER CODE END TIM1_Init 2 */
 HAL_TIM_MspPostInit(&htim1);
 
}
 
 

[shose]

HI

:worried_face:

[berendi]

I'd be very glad to help as soon as you've posted the pinout and the GPIO and timer register values.

[waclawek.jan]

We told you to:

> Read out and check the content of the timer's registers, also check the content of registers of GPIOs related to the pins you want to use for PWM.

JW

[shose]

GPIOA

GPIOBTIM1TIM2

TIM3

TIM15

TIM16

TIM17

Thanks for your help

[waclawek.jan]

You enable only the "inverted" of the complementary channels (TIMx_CHyN), look up the CCER register's description in RM:

TIM2 and TIM3 don't have complementary channels, that's why CCER there is completely zero.

However, in the GPIO AF, you have chosen the "direct" channels (without N at the end) - in all timers, except TIM15 - which you say does work.

You enable the "inverted" channels probably using HAL_TIMEx_PWMN_Start(); functions. You have to find some Cube/HAL function, probably similarly sounding, which enables the "direct" channel. I don't use Cube/HAL.

JW

[shose]

HI

Thank you all

especially JW

The problem was solved

HAL_TIMEx_PWMN_Start() function is false

HAL_TIM_PWM_Start() function is true