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Simulators >> Circuit Simulators >> transient simulation result can not be accessed
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Message started by eeBismarck on Feb 23^rd, 2009, 4:10am

Title: transient simulation result can not be accessed
Post by eeBismarck on Feb 23^rd, 2009, 4:10am

Hi friends,

I am doing a transient simulation. I set the simulation stop
time=1.6us and maxstep=20ps. When the simulation approach 90%, there
is a warning:

- Warning -
<COM.cadence.awd.graph.GraphManager@aa559d>
Problem in attempting to load data forGraphObject={title=*,
cursorPos=null, ID=trc:4536207.8}
null

And the simulation coutinues to 100%. But i find that all the node
voltage is 'null' and can not be ploted. It is really strange.
I am using IC5141 with spectre and the mmsim 6.2 is included.

Have anybody encountered this kind of problem?

Thanks!

Title: Re: transient simulation result can not be accessed
Post by Andrew Beckett on Feb 23^rd, 2009, 4:43am

Please do not post in multiple boards in this forum. This is covered in the http://www.designers-guide.org/Forum/guidelines.html. I can see you've posted this in (at least) 3 boards...

This is also being discussed over on http://groups.google.com/group/comp.cad.cadence/browse_thread/thread/8c9ac15becf1eb6c# for anyone interested.

Andrew.

Title: Re: transient simulation result can not be accessed
Post by Ken Kundert on Feb 23^rd, 2009, 8:29am

The source of your problem is probably that you have set maxstep to 20ps? Why do you feel that is necessary?

-Ken