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Simulators >> Circuit Simulators >> saving mulitple operating points in spectre tran
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Message started by kmoore on May 23^rd, 2006, 3:14am

Title: saving mulitple operating points in spectre tran
Post by kmoore on May 23^rd, 2006, 3:14am

Hi,
Spectre question:
I would like to save a number of operating point state files from in a very time consuming transient simulation I'm running so that I can then run ac analysis using the "prevopoint=yes" option for AC analysis at each timepoint.

As I undertand it, the ac analysis will use the spectre.fc file created at the end of a transient sim when "prevopoint=yes".
So how can I create spectre.fc files at specific time points during the one transient sim?

I see in the transient options form that there is a parameter "infotimes" which can be used to save the full dc operating point as a binary at specific time points. But as far as I can see the ac analysis needs a textfile in the same format as the spectre.fc.

Any ideas on this?

thanks,
Kevin.

Title: Re: saving mulitple operating points in spectre tr
Post by sheldon on May 30^th, 2006, 5:06am

Kevin,

Have you tried the acnames and actimes option for transient
analysis? Of course you need to be using a recent version of
Spectre.

Best Regards,

Sheldon