Hello,

I am trying to find out GPIO mapping on a board with an STM32F407 (which firmware function is related to which GPIO). I know I could do it using a LA, but pins are note very accesible.

I have no access to source code so... I only have a firmware…

Hi. I have an INVPC exception that I am trying to debug on a Cortex M4 STM32. The stack contains the following values:

0x08003555 xPSR
0x08006824 PC
0x08006824 LR
0x00000000 R12
0x08003341 R3
0x08006824 R2
0xFFFFFFFD R2
0x0000FFFF R0

The PC and LR both point…