i am trying to link stm32 to other unit board already programmed when i enter for exemple a référence as input ( F01 98 7 /r) i expect in return to receive " OK " after the test

[HBALI.1]

i've got this problem on cubemxIDE

[Tesla DeLorean]

Yeah, I'm not sure how the title, and the screen shot relate.

The screen shot shows the compile complaining you don't define the variable you're attempting to set the value into.

Where is usbresult defined? Is it in scope?