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JLee25's avatar
JLee25
Icon for Contributor rankContributor
5 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
5 years ago

Hi Johnson,

Thanks for sharing the file. As I look into the Native PHY .v file, I could not locate any anomaly with it. Would you mind to help performing the following test just to isolate out any potential sampling issue with the signaltap?

1. Can you try to send continous and fixed data pattern ie 0xFDBC to RX to see if it can recover 0xFDBC correctly?

2. In addition, you may try to use PCS-PMA interface width to 20 instead of 10. With this, you will not need to use Byte Ordering and Byte SERDES blocks.

Please let me know if there is any concern. Thank you.

Best regards,

Chee Pin