xSemaphoreCreateBinay() crash IOs

[sinolegend]

IDE : STM32CubeIDE Version: 1.16.1
Board : STM32F407VG DISC1
SYS Timebase Source : TIM6

Hello,
In my project, i use I2C and multiple UARTs. It worked fine before adding FreeRTOS tasks. Recently i need add buttons to my project, so i add a new task to handle interrupts. To synchonize my EXIT ISR (callback) and the button handling task, a binary semaphore is adpoted.

Strange things happened, after creating a binary semaphore with xSemaphoreCreateBinary(), all I/Os, I2C and UARTs, are failed. Even HAL_Delay() did not work, bebugger died in HAL_GetTick() in HAL_Delay. all abnormalities happened before starting FreeRTOS kernel and initializing tasks. Commenting the xSemaphoreCreateBinary() system is back to normal.

Can someone tell me what causes the problem.

[Sarra.S]

Hello @sinolegend, 

Could you share xSemaphoreCreateBinary()?

Potential causes could be heap/stack corruption or a conflict of HAL timebase (using TIM6), so try increasing the heap size and make sure TIM6 is not used by both HAL and RTOS.