In this guild [http://ardupilot.org/dev/docs/companion-computer-nvidia-tx2.html], NVidia TX2 Communicate with Ardupilot via AuVidea.eu’s J120 carrier board，but I don‘t have a J120 board. Anyone konws how to use FTDI Cable or USB to Serial interface to do the mavlink communication between TX2 and pixhawk? THX
I have this same question
In theory, no matter the board you use for the Jetson TX2, if you have an USB output, you can use Mavlink (or MAVROS, if you prefer ROS like me) for communication. You can follow the same configuration as Pixhawk <-> Raspberry Pi.
What kind of board do you have ? Have you tried yet ?