System Workbench for STM32

Hi,

Can you check the optimizations ?
In prj properties, c compiler optim, set them to -0 (None) if not already the case.

Then, i don't know, is there a header file not included.
Is there a warning when compiling ?
Or is it a function not used anymore because you renamed it ?

Without seeing the code, we can't investigate more.
You have to find why it is greyed out.

Rgds,
Laurent