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GDagi1's avatar
GDagi1
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

RGMII data not passed to AvalonST

Hi all, I am currently attempting to take in 4 bit RGMII data into my system and then modify the resulting 32 bit AvalonST data. My testbench sends this data currently and it appears as RGMII inputs...
Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

If I understand you correctly, basically your issue is you have send it data traffic to RGMII Rx interface of TSE MAC IP but nothing come out from TSE IP Avalon ST Rx interface to user logic design, right ?

I looked into your sim waveform and I can see that a lot of red colour signal which looks like your TSE IP is not initialized properly, including both reset signal. (enet_resetn and phy_resetn).

Just wonder did you initialized all your input signal (set some default value to all input signals) of your test bench before you start sim data traffic flow ?

Also, I have commented in your other forum post that perhaps it's good idea to checkout some TSE example design as reference.

Thanks.

Regards,

dlim

  • GDagi1's avatar
    GDagi1
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago

    Hi dlim,

    Yes my issue is that I have RGMII data coming in but the Avalon-ST RX interface does not receive it.

    I have everything initialized and cleaned up in this simulation but the issue remains.

    Thanks,

    George