I am getting the following error during PSS sweep analysis:
Internal error found in spectre during sweep analysis`sweeppss'. Please run `getSpectreFiles' or send the netlist, thespectre log file, the behavioral model files, and any other informationthat can help identify the problem to support(at)cadence.com.
my spectre version is mmsim6.1. who know what's the problem ? thank you all!
thank all of you kindly reply. there no more information about the error , just as I show you above. I just put the avdd as a varible value , then change the power avdd from 3.0v to 3.6v ,use a linear fashion, step 0.1v , then just can run sweeppss-000, that's mean just run avdd=3.0v,then it can't run the second avdd=3.1v and so on.
I use even more older version spectre , it can run the pss sweep correctly.
recently I don't plan to update new version mmsim 7.2. thank you!
In reply to kivvzhou:
Hmm. You're not doing anything unusual, and countless people will do this kind of thing without the simulator failing with an internal error, so it must be related to your exact data (circuit, models, etc, etc).
Usually with an internal error, it tells you which line in the code it was failing at. Posting the log file might help identify the problem. However, if the problem is known (which may be hard to check with such an old version), the solution would almost certainly be to move to a newer MMSIM version. You don't seem to be prepared to do that, so it's really rather hard to see how you expect the problem to be solved.