I am working on MPC5777M EVB board and I want to develop LIN Protocol application on that board so any sample code of LIN is available or not in community ? and suggest me for useful document
you can refer to MPC5744P example posted here; https://community.nxp.com/docs/DOC-329922
Teh LINFlex module is the same.
In the case of loop back test mode of LIN, external 12V is required or not.
I assume for internal loopback the transceiver is not used, so it is not needed to supply it.