Why does the HAL Tick timer stop incrementing after creating a FreeRTOS mutex in STM32CubeIDE?
I've been working on an STM32 project using STM32CubeIDE 1.11.2 with CubeMX 6.7.0, and I'm testing on the Nucleo-F767ZI board. After creating a FreeRTOS mutex, I've noticed that the HAL Tick timer stops incrementing.
Here's what I've done so far:
What could I be missing?
Here's what I've done so far:
- I started a new STM32 project in STM32CubeIDE with all default settings.
- I opened the .ioc file in the MX perspective and enabled FreeRTOS support using the CMSIS_V2 interface.
- In `main.c`, right after `osKernelInitialize()`, I added the following code:```cosMutexId_t mutex = osMutexNew(0);HAL_Delay(100);```The issue is that the code gets stuck in `HAL_Delay()`—the `SysTick_Handler` is never called, and `HAL_GetTick()` always returns the same value (10 in my case).
What could I be missing?
Solution
Posted on November 21, 2014 at 19:54 Hello, in xPortStartScheduler routine, the systick priority is forced to /* Make PendSV and SysTick the lowest priority interrupts. */ Some HAL interrupt drivers implement a time out based upon systick value. With systick priority set to lowest priority the ...
