SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world.
And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4.
You can get more information from the ac6-tools website and download two short videos (registration required) highlighting:

System Workbench for STM32

Unable to debug FreeRTOS tasks in SW4STM32 on STM32H7 processors

Hi there,

I was able to solve the initial problem where you can’t step anymore and the debugger freezes once you set a breakpoint inside a thread (even though it worked without a problem in the main() function). I fixed it in CubeMX. Go into the Middleware->Freertos section and there go to Config parameters. Here find the Software timers definitions and enable them. This fixed it for me.

I’m not sure why this fixes it though. Maybe it has to do with the way FreeRtos and HAL interact with the SysTick (I’ve read somewhere that there are 2 SysTicks or something in that direction).

But that would still not explain it fully as I was able to debug without Eclipse using openOcd and gdb-multiarch even in the threads. But even when I replicated the same setup in Eclipse the debug freeze error occurred. So for gdb+openocd enabling the software timer definitions was not necessarry.

So this solution might not be perfect (or at least I don’t understand it well) but at least the problem disappeared.


Same here!
Thanks enabling the timers makes it.