Yes.
Yes this happens without a MIDI device. If I connect an external MIDI device no events are sent or received.
J4A is correct, but I am unsure about the ribbon cables (for all boards). Do you know good instructions how to assemble them correctly?
I was trying to compile apps/troubleshooting/mbhp_core_stm32_module in order to check the core module, but now I realize that this is not the same as STM32F4. My fault. Are there any other tools that could help to debug my core module.
Thanks a lot for your help!
Christoph