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UltraSim simulation issue for Power-up Rush Current Analysis with Power Gate(Switch)

Hi All,

I'm trying to run a rush current Analysis for a power-gated design I am implementing. I've been going through the Encounter and EPS manual to set the analysis up properly and I don't think I'm doing anything wrong...But whenever I run the power-up (rush current) analysis, EPS (or Encounter) produces an ultraSim RC parasitic spiceDeck (Switched_Net.rc) for the design that has a ton of duplicate instantiations and it kills the ultraSim simulation. This is the Error message I'm getting in the Switched_Net.ulog file :

ERROR (SFE-401): Duplicate instantiation of 'RC_instance...' in 'Design'

I get this error for almost all nets in the design so the spiceDeck creation is messed up but I'm not sure why. The spiceDeck generation process is automated within the power-up analysis flow so I'm not sure why it is doing what it's doing.

Has anybody had a simular experience with the Power-Up analysis in Encounter and know how I can solve this issue?

Thanks

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Kari over 10 years ago

I know this is an old post, but I recommend using the native power-up flow. See the user guide for details.
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Kari over 10 years ago

I know this is an old post, but I recommend using the native power-up flow. See the user guide for details.
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