Controller Area Network (CAN) on Xavier NX at 1Mbps

[shgarg]

Hi everyone,
To achieve exact 1Mbps:
Here is the documentation available to change CAN parent clock to PLLAON.

https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%2520Linux%2520Driver%2520Package%2520Development%2520Guide%2Fclocks.html%23wwpID0E06B0HA

Check “ To use PLLAON as clock source” section

With PLLAON, users will be able to achieve 50MHz CAN core clock rate and 1Mbps exact bitrate settings as well.

To set 40MHz clock rate, I just replied in this thread, please check it out.

How to change frequency of CAN interface

Hi ashik.p, To achieve 40MHz, first you need to set CAN parent clock as pllaon. Please follow below doc to do so: https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%2520Linux%2520Driver%2520Package%2520Development%2520Guide%2Fclocks.html%23wwpID0E06B0HA Check “ To use PLLAON as clock source” section Also, by default, CAN clock rate requested is 50MHz from MTTCAN kernel driver. So to use 40MHz, make below change in driver: The mttcan kernel driver sets the CAN clock rate. Follow the i…

Thanks,
Shubhi
Thanks,
Shubhi