FreeRTOS v10.0.1 on STM32F4-discovery

[hs2 (Hartmut Schaefer)]

Just to be clear, in your FreeRTOSConfig.h you have these handlers defined ?

#define vPortSVCHandler SVC_Handler
#define xPortPendSVHandler PendSV_Handler
#define xPortSysTickHandler SysTick_Handler

and you are using the provided FreeRTOS handlers, right ?

When using SysTick for FreeRTOS and also HAL ensure that SysTick it’s not (longer) used as HAL tick and use another TIMer for HAL instead. Or vice versa.

In case you want to re-generate an FreeRTOS example project with CubeMX maybe have a look at this post:

SVC call causing hard fault

Remove the other definitions which most probably should be in a file named like stmxxxxx_it.c. If you are using STM32Cube IDE, the best way to generate a FreeRTOS project is to follow the following steps: Enable FreeRTOS in the configuration tool: Middleware --> FreeRTOS --> Interface. Change HAL Tick from SysTick to some other timer (say TIM6): System Core --> SYS --> Timebase Source. If you follow these steps, the generated stmxxxxx_it.c file will be correct and won’t have duplicate symbol…