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Debugging on Pixhawk


  • Set CLI_ENABLED parameter to Enabled
  • Otherwise, the NSH console won't start at boot.

Connect to Pixhawk

Use FTDI USB to Serial Adopter or cable and connect it to Serial 4/5 port on Pixhawk. Only the GND, TX, and RX for serial 5 are needed to access NSH.

Once connected through the debug port, login to Nuttex Shell using screen.

screen /dev/tty.usbserial-Axxxxxx 57600 8N1

Once logged in, you can use unix commands like ls, ps, top, etc.

To kill the screen

ctl-a k


In order to check uavcan status

uavcan status