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Rutherther's avatar
Rutherther
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2 years ago

Cyclone 10 GX transceiver RX word align pattern

Hello, I am using the Cyclone 10 GX transceiver, and wanted to try out synchronous state machine word alignment in simulation for now. I set the RX word aligner pattern to 0x17C, 10 bits.
I enabled 8b10b coding on both RX and TX. I am then sending 0xBCBC control characters. I would expect the RX to synchronize to the TX word, and
get pattern matches. But it never does, and I get no pattern matches.

I tried also putting in data between the control K28.5 characters. But that hasn't helped either.

I've also tried bitslip instead of synchronous state machine, and it worked just fine, I could send a few bitslips to sync to TX.

Am I doing something wrong? What could be the problem? I am attaching a screenshot with this behavior, I can send more if needed.

Jesd

3 Replies

  • Rutherther's avatar
    Rutherther
    Icon for New Contributor rankNew Contributor
    2 years ago

    Here is one more image from simulation, I accidentally put the cursor where the text was before.

  • ZiYing_Intel's avatar
    ZiYing_Intel
    Icon for Frequent Contributor rankFrequent Contributor
    2 years ago

    Hi,


    Since no hear any feedback from you, I now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread.


    Best regards,

    zying