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lambert_yu's avatar
lambert_yu
Icon for Contributor rankContributor
4 years ago

About lane stable of simplex transceiver RX

Hi all, I am facing one strange problem : For current design with simplex transceiver rx using quartus prime 16.0 standard version, after compiling, I got the .pof file and download to F...
Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi,


Do you observe Rx CDR loose lock intermittently in v18.0 Std ?


Assuming no changes in your design, one of the reason that I can think of is the IP upgrade is not done correctly causing IP design corruption.

  • You can try delete the upgraded NativePHY IP then create a new fresh NativePHY IP in v18.0 std again


Another suggestion is pls try out newer latest Quartus version. v18.0 is too old


Thanks.


Regards,

dlim


  • lambert_yu's avatar
    lambert_yu
    Icon for Contributor rankContributor
    4 years ago

    Hi Deshi,

    After I add set_global_assignment -name PRESERVE_UNUSED_XCVR_CHANNEL ON,

    I found that the transceiver work well for many compiled sof file except first compiled sof file ( for example, I make one new project folder).

    I serch for the question about this assignment, I have the question as follow link :

    About PRESERVE_UNUSED_XCVR_CHANNELfor transceiver application - Intel Community

    Would you give me some advice, thanks.

    Brs,

    Lambert