I have gotten my Pixhawk and am attempting to configure it for my first copter.
When I connect the pixhawk to apm_planner or mission planner the startup sound plays, and I am able to connect to the pixhawk for around 30 seconds before the link dies. This has happened on mission planner, apmplanner2, and qgroundcontrol on my windows 7 x64 system as well as apm_planner2 on my linux systems. After connecting to the pixhawk I am able to see the initial setup options and real time mag data through the GUI, then a preArm: RC not calibrated warning shows up and the board disconnects.
I have a ezUHF rx configured for ppm and connected to RC IN on the pixhawk, as well as ESC’s 1 - 4 connected. the 3DR GPS/MAG, buzzer, and safety switch are connected as well. This happens with either usb or BEC powering the pixhawk. No logs show up on the pixhawk SD card, the firmware version is