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JLee25's avatar
JLee25
Icon for Contributor rankContributor
6 years ago

Native Phy Word Aligner

Hi, I am using Cyclone V Native Phy for custom protocol. My simple project using the K28.5 as word aligner symbol. ​ But from signal tap, I see the rx_patterndetect triggered when data is 0xBE ...
CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi Johnson,

As i understand it, you observe in some cases the rx_patterndetect go high even not for 0xBC pattern.

Would you mind to share with me you Native PHY .qsys or .ip file so that I can have a better understanding on your configuration.

Just would like to check with you also for the 2nd signaltap, do you observe data corrupt? Or if the 0xBE is something expected.

Thank you.

  • JLee25's avatar
    JLee25
    Icon for Contributor rankContributor
    6 years ago

    Hi CheePin,

    Yes, your understanding is correct that I am expecting to see rx_patterndetect assert for 0xBC.

    0XBE is not expected that should not be seen at this stage.

    During this stage, only repeated 4-byte idle will be seen.

    BRs,

    Johnson