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5878 Discussions

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

MZama2
Beginner
560 Views

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  

  

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4 Replies
MEIYAN_L_Intel
Employee
199 Views
Hi, May i have your design file? So that i can duplicate the problem. Thanks
MZama2
Beginner
199 Views

Hi,

Please see the attachments.

Thanks

MEIYAN_L_Intel
Employee
199 Views

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

 

Capture.PNG

MZama2
Beginner
199 Views

Thanks for your help mei.yan.lee.

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

All the best

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