• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 32 subscribers
  • Views 330 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DP83822IF: EtherCAT statemachine error : "OP LNK_MIS A"

sygo
Intellectual 280 points
Part Number: DP83822IF
Other Parts Discussed in Thread: AM2634, SYSCONFIG

Hello,

I generated a custom PHY driver source for the DP83822IF.

MCU is AM2634

First of all, I changed the ETHPHY from Sysconfig to Custom and completed Device Name settings and PHY Address settings.

And I completed the driver source for Custom PHY and completed the Compile.

Next, I connected the Custom Board and Ethercat using TWINCAT3.

But in Ethercat Statemachine, "op" and "op lnk_mis a" appear alternately.

And the Lost Frame value is also increasing.

The below picture is such a phenomenon.

Could you know what the problem is?

Thank you

  • 0
    TI__Mastermind 31755 points

    Hello,

    OP LINK_MS_A according to Beckhoff indicates that there is a link drop in port A. I would look to investigate as to why, whether it would be on the PHY on the DUT port or the PHY that is the link partner. Good starting points would be checking for fast link drop status, and ensuring odd nibble detection is disabled.

    Sincerely,

    Gerome