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ADEXL: backannotation of transient operating points for montecarlo points

Hi all! Could anybody please tell me how can I backannotate transient operating points in ADEXL for single montecarlo points? I am able to do it in "Single Run, Sweeps and Corners" mode, but when I switch to "Monte Carlo Sampling" mode, the "Annotate->Transient Operating Points" option goes grayed-out. I have tried the montecarlo option "Save Data to allow Family Plots" but it doesn't change anything. I can see in the output log of the points that spectre is saving the data for the specified "infotimes" values, so I guess the information is there, it's just that I am not able to backannotate it to the schematic.

I really need this option for debugging failing montecarlo points. If for some reason this were not possible, would there be any way of taking the netlist of the failing montecarlo point and simulate it separately, say, using ADEL?

Thanks in advance for any help!

Cheers,

Jorge.

P.S. I am using ADE version IC6.1.5.500.16.2 with spectre 10.1.1.218.isr14

Frank Wiedmann over 12 years ago

Have you tried creating a statistical corner from the montecarlo point and repeating the simulation in corner mode (see page 27 of http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:DocumentViewer;src=wp;q=ApplicationNotes/Custom_IC_Design/Stat_Quick_Start_615isr15.pdf)?
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Andrew Beckett over 12 years ago

This was a bug in the simulator - it was not writing the results correctly if using infotimes on a transient within a monte carlo (I think statistical corner would have the same problem, since it's just a single point monte carlo). I can't quite remember when it was fixed, but I think it was in MMSIM121 ISR8 (or 9). So using the latest MMSIM121 ISR would be sensible.
There is a remaining issue - you have to ensure that you have at least one "info" analysis enabled on the Save All form (this is CCR 1183683). That should hopefully get fixed soon (it's a relatively new CCR, but should be straightforward to fix).
Regards,
Andrew.
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spectrallypure over 12 years ago

Thanks so much for the suggestions, guys; changing to spectre version 12.1.1.048 did the trick! :)
(Sorry for the late reply!)
Cheers,
Jorge.
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