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Original question:

Compiler/DP83848J: STM32F107RC with DP83848J can't establish ethernet link correctly

Compiler/DP83848J: STM32F107RC with DP83848J can't establish ethernet link correctly

user5119463
Prodigy 70 points
Part Number: DP83848J

Tool/software: TI C/C++ Compiler

Hi every:

       I happpend to some connect problem with DP83848J, the follow is my source code and schematic,In RMII mode i can recive the register BMSR(0x01) is ok,but the computer also can't find the connection.8284.MT STM32F107 Control Board.pdfETH_LwIP - 01.zip

  • 0
    TI__Mastermind 19780 points
    Hi user,

    What do you mean by in RMII mode you can receive register 0x01? the register set is access by MDIO(SMI) which does not depend on RMII or MII.

    Are you saying in MII mode you cannot read the registers? If so, that would be a configuration problem on your processor.

    Best Regards,