I am using ubuntu 20.04 server LTS on raspberry 4. I have pixhawk flight controller connected via TX/RX on raspberry pi GPIO14(TXD) GPIO15(RXD).I write a mavproxy.service
to forward telemetry data to laptop via wifi. Now on restart the raspberry pi is not booting up I think it goes to comsole mode. I want to get pixhawk data via GPIO on ubuntu 20.04 server
device tree
,overlays
and firmware as used in the RPi OS. And so, unless you can explain - in your Question - how that is set up, it makes it v. difficult to answer.