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.