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DP83826I: How to configure DP83826 to implement EtherCAT communication

user5363809
Prodigy 150 points
Part Number: DP83826I
Other Parts Discussed in Thread: USB-2-MDIO, DP83822I,

F28388D and DP83826 cooperate for EtherCAT communication, and cannot establish communication with the master station.The manual says that the register of DP83826 needs to be configured. I do not know how to read and write snla344a.pdfthe register of DP83826. It is introduced in the manual that we should contact local sales or TET.See the attachment for the instruction manual

  • 0
    TI__Genius 11725 points

    Hello,

    To clarify, the issue is finding a way to read/write the registers of the DP83826? 

    Register access is available via the Serial Management Interface (SMI) via the MDIO and MDC pins. Refer to section 9.3.11 in the datasheet for more information. There are a variety of tools compatible with this interface, you may try our USB-2-MDIO tool. Please let me know if you have any further questions.

    Thank you,

    Nikhil

    All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and it is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).

  • 0 in reply to Nikhil Menon
    Prodigy 150 points

    Hi  Nikhil：

    I used SSC tool to genetate Ethercat slave protocol stack code previously,which can run successfully in F28388d demo board ,the F28388d demo board's ESC is DP83822i ,now our Ethercat board replace DP83822i with DP83826i，the same software download two board,but our

    Ethercat board failed to run.so I don't know if it's because I don't configure DP83826i's registers.

    if you have any ideas ,please let me know.

        

  • 0 in reply to user5363809
    TI__Genius 11725 points

    Hello,

    Are you able to read/write the DP83826 registers? Can you read the registers listed in the app note you have referenced, SNLA344?

    Thank you,

    Nikhil

    All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and it is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).