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DP83867IR: DP83867IR not working at 1G, auto negotiation not working in all PC

vijay baragur
Prodigy 60 points
Part Number: DP83867IR

Dear ALl,

We have a custom board  design wirh DP83867IR and Zynq MPSoC FPGA,

We have followed the refernce design of FPGA which has DP83867IR,

On out custom board, we are able to transfer and receive data through ethernet on 100M link,
1G link is not establishing,
Chip is configured in auto negotiation mode through Strap settings,

kindly help us in resolving the issue

  • 0
    TI__Expert 7040 points

    Hi Vijay,

    Can you describe how you are forcing 100M and 1G link modes and give a summary of any debug steps you have tried?

    Can you try only advertising only 1G on both DP83867IR and link partner alternately? Please also try 1G link through forced mode? This will help to narrow the cause of the issue. 

    Regards,
    Justin