Timer instance not working in FreeRTOS context

[Refused_HC]

Hello all, I explain you my problem the best I can.

I have a project with the MCU STM32U575RGT6 The project has TouchGFX and FreeRTOS. After the initializations of the peripherals, I have the next calls, so the while(1) in main.c is not executed. As you can see in the next image.

So for the moment the only main loop I have detected in the application is the timer interruption.

In CubeMX I have 3 timers defined: TIM17, which is been assigned to the system as the timebase source:

And timers 2 and 4 with the same exact parameters in CubeMX: (timer3 is related to an encoder....)

I initialize the corresponding interruptions.

The problem is that in the interruption HAL_TIM_PeriodElapsedCallback I never get the call of the timer 4 instance.

Any help will be welcome.

[Gyessine]

Hello @Refused_HC 
Can you check please Timer4 registers (TIM4_CR1,TIM4_ARR,TIM4_PSC,TIM4_CNT),are they getting initialized and working like they should be?
Additionally, monitor the related pin to determine whether the timer generates a signal if possible.
BR
Gyessine

[ferro]

Hi @Refused_HC 

In you main(), before anything else, try to call __set_BASEPRI(0)

int main(void)
{

  /* USER CODE BEGIN 1 */
  
  __set_BASEPRI(0);

  /* USER CODE END 1 */

see this discussion

https://community.st.com/t5/stm32-mcus-embedded-software/stm32f4-tim6-initialization/m-p/888102

[ferro]

Hi @Refused_HC 

please ignore my previous reply, I got confused. 

>>"After the initializations of the peripherals, I have the next calls, so the while(1) in main.c is not executed"

This is correct behaviour as RTOS is running its scheduler/idle task thread. Not sure now. okKernelStart() does not return.

How can you have HAL_IncTick() called from TIM4 IRQ when you assigned TIM17 as the HAL tick base timer ?

And your TIM4 is RTOS aware. Does not make sense.