Using CubeIDE Debub with FREERTOS gives error in osKernelStart

[PSmol.1]

Hello everyone,

I just started messing with FREERTOS and encountered odd behaviour.

When I run my code, everything seems to work. However, when I run debug the osKernelStart() fails.

Any ideas what causes this and how I can fix it?

Addtional info: sometimes restarting the CubeIDE works, but just once.

Thanks!

Peter

[KnarfB]

what is the error?

[Pavel A.]

More details, please. Which STM32, board; which CubeIDE version?

[PSmol.1]

I am using CubeIDE version 1.4.2.

In osKernelStart()

 if (IS_IRQ()) {

  stat = osErrorISR;

 }

executes and therefore the scheduler never starts.

The board I am using is the NUCLEO L476RG.

[KnarfB]

Don't recall the details, but once there were issues with wrong interrupt priorities set by STM32CubeIDE. Try upgrading to the latest version and regenerate all code.

hth

KnarfB

[PSmol.1]

Thanks for the hint, I will update CubeIDE (and to be safe) CubeMX to the newest version and report back!

[PSmol.1]

First off, thanks so much for all your replys, really apreciate it!

Yes, I am using CMSIS_OS2.

Can it be, that the a breakpoint kind of acts like an interrupt in this case? Just to reiterate, it works when just running the program, only when using debug mode it fails to start the kernel.

[Pavel A.]

You have quite old CubeIDE version. Try 1.7.

Maybe even try the latest 1.9 - though users complain about issues related to debugger in v. 1.9.

If the newer debugger asks to update ST-LINK firmware, try this too.