# CAN setup CAN2 on the basboard is conneted internally to both FCU and Jetson module. The basics could be implemented from Nvidia user guide: {% embed url="" %} Nvdia Jetson official CAN setup guide {% endembed %} However, you could follow the below quick commands might make you able to loopback test the CAN connection between Jetson module and FCU on Jetson's terminal: ``` sudo modprobe mttcan sudo ip link set can0 type can bitrate 500000 loopback on sudo ip link set can0 up candump can0 & cansend can0 123#abcdabcd ``` The last command has to have the following output if can is running OK: ``` can0 123 [4] AB CD AB CD can0 123 [4] AB CD AB CD ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.holybro.com/autopilot/pixhawk-baseboards/pixhawk-jetson-baseboard/can-setup.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.