Hello,

I’m starting this post because the original was under a different topic title.

here is the link to it:

Topic: Projects with STM32H7S3x8 / STM32H7S7x8 | Sysprogs

I have a project with an STM32H7R3L8H6H MCU and encountered the problem that I can see the variable values during debugging. I followed the recommendations from Sysprogs support and patched the gcc_compat.h file. This change made it work, but after some modifications in my project files, the problem with the missing values in the variables returned. I started a new project from scratch and followed the tutorials. At first, it worked just fine, but as soon as I enabled the DCache, the problem returned.

The variables show only initial values and no changes if I do this:

// Enable D-Cache---------------------------------------------------------
SCB_EnableDCache();

The variables showing changing values if I do this:

// Enable D-Cache---------------------------------------------------------
// SCB_EnableDCache();

The MPU_Config(); and the SCB_EnableICache(); don’t matter, only the SCB_EnableDCache();

I want to use the DCache; how can I enable it without losing the ability to debug?

Thank you

Kai