Timer1 Interrupt is not generated

[STuser2]

I am using Nucleo-F446RE board and trying to verify the TIM1 update interrupt and PWM, the PWM is generated but if i put a break point in the update interrupt it does not halt, what is the reason?

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_USART2_UART_Init();
 MX_TIM1_Init();
 /* USER CODE BEGIN 2 */
 HAL_TIM_PWM_Start_IT(&htim1,TIM_CHANNEL_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 */
}

 i have put a break point in the below function

/**
 * @brief This function handles TIM1 update interrupt and TIM10 global interrupt.
 */
void TIM1_UP_TIM10_IRQHandler(void)
{
 /* USER CODE BEGIN TIM1_UP_TIM10_IRQn 0 */

 /* USER CODE END TIM1_UP_TIM10_IRQn 0 */
 HAL_TIM_IRQHandler(&htim1);
 /* USER CODE BEGIN TIM1_UP_TIM10_IRQn 1 */

 /* USER CODE END TIM1_UP_TIM10_IRQn 1 */
}

I am adding my cubemx project.

 

 

[Andrew Neil]

Do you have HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ() for the timer interrupt?

[STuser2]

Thank you for reply, how do i check it? If i verify the hal_msp.c file as below it is available. 

void HAL_TIM_PWM_MspInit(TIM_HandleTypeDef* htim_pwm)
{
 if(htim_pwm->Instance==TIM1)
 {
 /* USER CODE BEGIN TIM1_MspInit 0 */

 /* USER CODE END TIM1_MspInit 0 */
 /* Peripheral clock enable */
 __HAL_RCC_TIM1_CLK_ENABLE();
 /* TIM1 interrupt Init */
 HAL_NVIC_SetPriority(TIM1_UP_TIM10_IRQn, 0, 0);
 HAL_NVIC_EnableIRQ(TIM1_UP_TIM10_IRQn);
 /* USER CODE BEGIN TIM1_MspInit 1 */

 /* USER CODE END TIM1_MspInit 1 */

 }

}

 

[waclawek.jan]

I don't use Cube/HAL, but HAL_TIM_PWM_Start_IT() sounds that it woulduse the CC-interrupt, rather than Update-interrupt, if any. For TIM1, those are separate vectors, TIM1_CC for the CC interrupts and TIM1_UP_TIM10 for the Update.

If not this, a generic interrupt does not fire checklist here.

JW

[TDK]

As @waclawek.jan suggests, the update interrupt is enabled with HAL_TIM_Base_Start_IT. Use that before the call to HAL_TIM_PWM_Start_IT.

stm32f4xx-hal-driver/Src/stm32f4xx_hal_tim.c at 3a6ec1330ec2ff9cdc414f643e3d09cdf50c415e · STMicroelectronics/stm32f4xx-hal-driver

[STuser2]

Yes it did the trick, but the videos i have gone through online it was never mentioned. Thank you for the solution.