The CAN configuration is done in the systemd configuration file/lib/systemd/network/can0.network. For a persistent change of (as an example, the default bitrates), change the configuration in the BSP under ./meta-ampliphy/recipes-core/systemd/systemd-conf/can0.networkin the root filesystem and rebuild the root filesystem. In this ALPHA1 release so far the configuration over systemd is only done for the can0 and the can1 interface.