If you want to develop all your project in Simulink, that’s ok to use EcoCoder-AI for your Xavier part, but your TC297 will need EcoCoder to be programmed. Also, you can develop your autonomous algorithm in ROS or some other way to make it easier for whole project.
For our VCUs, I think EcoCoder is enough, please refer to our EcoCoder Manual.
EcoCoder-AI library is different from that in EcoCoder.
Communication can be done between Xavier and TC297 via ethernet
Messages can be sent from Xavier to TC297, but control part by TC297 should be developed in EcoCoder with Simulink.