I compiled ardupilot for copter and got error message about barometer.
Here are my commands running on PXFmini. It takes all night..
git clone https://github.com/ArduPilot/ardupilot
git submodule update --init --recursive
./waf configure --board pxfmini
cp build/pxfmini/bin/arducopter /home/erle/
I got the error message.
"Baro: unable to initialise driver"
I also tested the GPIO pins with wiringPi.
The result is attached.