24 replies

mcu rpi shutdown. Where is the internal rpi mcu used?

Errors⚙️Configuration

Hello everyone. I have been having random instability with the mcu rpi shutdown error.
I have started troubleshooting step by step with Tiago.
The system is everything default V Core 4.0 IDEX 500.
As Tiago suggested I did a clean install of RatOS and observed the raspberry pi's internal mcu appear and disappear after updating components or going through the configuration wizard.

Because the error I get is mcu "rpi" shutdown and not mcu "mcu" shutdown, I think the issue is not with the Octopus board but with the pi's mcu for connecting stuff to GPIO. Can someone confirm from the log file that this mcu that runs at 50MHz and not the octopus that runs at 180MHz is the one that is crashing and having the timer too close error?

Therefore I want to understand where that mcu is used and why RatOS configuration wizard enables it and it runs some weird firmware and not klipper. I can't find where in the config files the mcu is declared/defined, nor where the frequency it runs at is defined. Because I also got a warning one time for 48MHz vs 50MHz frequency and Tiago said that is an unusual message. Also only one GPIO pin is used from the rpi mcu in ratos.cfg. If it is necessary to use that mcu, shouldn't it be running klipper firmware instead of this fv-az659 firmware.

Thank you in advance for your time.