Finding the Root Cause of a Wrong Value | Synopsys

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On encountering a wrong value in the Waveform view, the first thing you can do is to find the active driver. In Verdi, you can simply double click the waveform or the source code to find active drivers. However, when the propagation path is long and complex, it's difficult to remember what happens in every branch, and it's very easy to lose track of the path.

Verdi provides the Auto Trace capability that can find the root cause from a wrong value and show the complete propagation path using one command. This video will help you further understand how to use Temporal Flow View to find the root cause and what does each symbol in the view signify to help users to analyze the design.

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Synopsys

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Helpful...
Thanks...
Can I get more debug video for Verdi tool ?
I want to improve my debug skill.

Nipulpatel_all

What does yellow background of "55" indicate at 6:32, is that part of the auto-trace backtracging to indicate the "55" has been propagated from this point ?

jlofgren

Super explanation. Need lot vedios like this. Thank u

poojavs

For assertion,

I have used fsdbdumpSVA, Still it's not getting into waveform. Log file it passing, how can assertion behaviour would visible in waveform?

Nipulpatel_all

Hi, i have one question'. I have one signal that is propagating continuous ZERO. It should drive ONE. How to rectify the issue using Temporal Flow. ?

amanverma

All autotrace seems to do is crash Verdi ):

michaeletzkorn

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