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MZama2's avatar
MZama2
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6 years ago

How to find LTSSM signals (for PCIe Hard IP) in Node Finer or Technology Map Viewer?

Hi guys,

I am a newbie in FPGA development and currently struggling on bringing up a PCIe Datapath card developed based on Cyclone IV GX and PCIe Hard IP(parameterized in QSYS) .

To debug the problem, I am trying to tap LTSSM signals with SignalTap, (using Quartus 11.1) but can't find the node in Node Finder. Should I search it with different name? I have tried both Node Finder and Technology Map Viewer.

Any comment is appreciated.

Thanks

4 Replies

  • MEIYAN_L_Intel's avatar
    MEIYAN_L_Intel
    Icon for Frequent Contributor rankFrequent Contributor
    6 years ago
    Hi, May i have your design file? So that i can duplicate the problem. Thanks
  • MEIYAN_L_Intel's avatar
    MEIYAN_L_Intel
    Icon for Frequent Contributor rankFrequent Contributor
    6 years ago

    Hi,

    I had found out the LTSSM signal in SignalTap Node Finder.

    There are a few steps I had done before i found the LTSSM signal:

    1.Set the BT_Q11-2.bdf file as Top-Level Entity

    2.Start compilation on the design

    3.Click to the Signal-Tap II Analyser

    4.Double click to have the node finder in Signal-Tap.

    5.List all the node

    6.Search the *ltssm* node in the "Named" coloumn.

    Then you may see the LTSSM signal as picture below.

    Thanks

  • MZama2's avatar
    MZama2
    Icon for New Contributor rankNew Contributor
    6 years ago

    Thanks for your help mei.yan.lee.

    I could find and tap LTSSM signals by following your comments.

    All the best