Mid-print, mcu lost
Hi folks,
I've had this error repeat twice in a row now. Mid-print I'm getting a 'lost communication to MCU' error. No other information is available in the interface.
I can get a console on the pi. Wondering what debugging steps I can take to track down the specific cause.
Are there log files I can look at? Would you suspect the board or something else?
The only thing thus far that seems to resolve the issue is power cycling the printer.
Thanks for any help!
1 Reply
Following up my own post after doing some digging online...
Dmesg output showed multiple USB disconnect/reconnect issues across all USB devices (two cameras +mcu)... I suspect that one of my cameras, which was malfunctioning, may have been causing an intermittent short affecting all USB devices...
I've disconnected that camera and, for good measure, also replaced the USB cable used to connect the mcu to the pi...
Will follow up with results after a handful of prints
Final update... Reasonably certain at this point that it was the faulty camera causing issues on the USB bus... Haven't seen the issue since and even restored the old USB cable that was connecting to the mcu