I'm trying to set up 2 machines using a PX4 FMU and IO Board, and using Arducopter 3.1 rc7, and I'm having a lot of problems with glitching that seems to be coming from the Rx input. It shows up in the logs as blips in the roll/pitch/yaw inputs. The copter flies, but it not safe because of this. When in Stabilize mode, the roll/pitch blips are almost imperceptible, but you can see the yaw position jump. In Loiter mode the copter can suddenly jump about 1 meter.
Has anybody else experienced this? Or are you successfully flying a PX4? Any insight appreciated.
I've tried updating the FrSky Rx firmware to the special 27us PPM firmware, and it doesn't seem to help. But I have no real way of knowing if the update even worked as the FrSky program doesn't indicate any success or failure, and I have no other way of checking if it's actually running at 18 or 27us frame length.
Update: The problem does not seem to be restricted to FrSky equipment, so I'm opening up the question to find out who is actually successfully on PX4 V1 equipment? Can you share any details of your setup?