I set the Ethernet interface of S32K344 to RMII, and also set TJA1101 to RMII. In this case, the loop back mode cannot receive data, but when TJA1101 is set to MII, the loop back mode is normal.
I hope you can provide a driver for S32K344 and TJA1101, preferably a routine with LwIP firmware.
Thank you very much!
