Transition driver in ModelSim

Zarrin · Mar 16, 2014

Hi all,

I'm simulating a design in ModelSim. Since a signal may have many drivers, every transition in those drivers may cause transition on the given signal. How can i find which driver has resulted in a transition on the corresponding signal? Is there any way to trace signal transitions for a specific signal? For example, i need to know that a transition on signal A is caused by transition by B and transition on B, in turn, is caused by transition on C and ... .

Thanks in advance.

dave_59 · Mar 17, 2014

This is an advanced feature called "Causality Traceback". Look for it in the User Manual.

imbichie · Mar 17, 2014

I think by double clicking the signal in the waveform window will point to that transition assigned (means the drivers of that transition) location

Zarrin · Mar 17, 2014

dave_59 said:
This is an advanced feature called "Causality Traceback". Look for it in the User Manual.

Thanks for the reply. It help me a lot.

Transition driver in ModelSim

Zarrin

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dave_59

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imbichie

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Zarrin

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Transition driver in ModelSim

Zarrin

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