• Reverse engeneering / debug / emulate .bin stripped firmware

    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…

  • Debug an INVPC exception

    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…