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TMS570LS3137-EP: EMAC - PHY loopback working only on broadcast mode

Subash Sundaresan1
Intellectual 560 points
Part Number: TMS570LS3137-EP
Other Parts Discussed in Thread: TMS570LS3137, HALCOGEN

Hi 

We are developing EMAC driver in our project for TMS570ls3137 controller, for testing purpose we are using TMS570ls3137 Eval board.  We have configured EMAC  MII mode, 100 Mbps ,full duplex and broadcast mode, during the preliminary testing we have enabled PHY loopback and it is working as expected. However when we try to test it in either Unicast it is quit working. It is working only in broadcast if we provide Source and Destination MAC addresses as "0xFF 0xFF 0xFF 0xFF 0xFF 0xFF". How to set up MAC addresses for Unicast mode, is there any issue with TMS570ls3137 Endianness. If yes then how to address this issue in software?