Can't set a breakpoint in debug

[Alexmouse]

I'm working with an STM32U575 Nucleo and also a custom board with the same processor.

In STM32CubeIDE, neither project will let me set a breakpoint. What am I missing?

I've attached a screenshot showing a "broken" breakpoint.

[Andrew Neil]

What optimisation level are you using?

Can you not set any breakpoints at all, or is it just at this particular location?

[Alexmouse]

I've tried a variety of optimisiations, no change.

No breakpoints at all, even simple instructions sitting in my main loop.

[Rim LANDOLSI]

Hello @Alexmouse  and welcome to the community,

 

In the attached screenshot there are two main files open, so make sure that the code where you are trying to set the breakpoint is actually being executed. Also check that compiler optimisations are off in Project > Properties > C/C++ Build > Settings > Tool Settings > MCU GCC Compiler > Debugging by setting its level to -O0.

Check if the breakpoint has a condition that will never be met.
You can, also, run Clean and Rebuild.

 

Hope this helps!

Thanks,

Rim.

[Alexmouse]

I've closed the other project entirely just to be sure.

No matter what optimisation I set, the breakpoint behaviour is the same.

Even a simple instruction in the main loop, shows as crossed out in the line index and the breakpoints window.

Is there something special about the U5 family re. debugging?

[Rim LANDOLSI]

Which version of CubeIDE do you use?