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Simulators >> Circuit Simulators >> Spectre doc file
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Message started by xwcwc1234 on Sep 20^th, 2006, 12:15am

Title: Spectre doc file
Post by xwcwc1234 on Sep 20^th, 2006, 12:15am

Hi,
I'm new to Spectre . I have one question on Spectre usage. In my simulation run , I want to save a node voltage which is in a hierarchy way , e.g., v(xtop.xsub.gate,vxtop.xsub.drain) (in hspice ). In spectre , how to do that ? or where can get a doc file about the usage ?

Title: Re: Spectre doc file
Post by Andrew Beckett on Sep 20^th, 2006, 2:54am

Code:

save xtop.xsub.gate,vxtop.xsub.drain

You can find information about this in the output from spectre -h save or look in the <instdir>/doc/spectreuser/spectreuser.pdf file - there's a chapter "Control Statements" which covers this. You can also find the same document in cdsdoc.

Regards,

Andrew.

Title: Re: Spectre doc file
Post by xwcwc1234 on Sep 20^th, 2006, 10:03pm

Thank you, Andrew. But I still can not find the syntax for saving the relative voltage for two nodes. As a example , I can use .probe tran v(xtop.xsub.d,xtop.xsub.s) in Hspice. Is there any corresponding statements in Spectre ? Can I say , save xtop.xsub.d,xtop.xsub.s in Spectre ?
Besides , I can not find the syntax for vsource ( pulse , pwl , sine ....etc) in Spectre user manual . Why ?

Title: Re: Spectre doc file
Post by Ken Kundert on Sep 20^th, 2006, 10:20pm

In Spectre you would save the two nodes independently, and use your plotting tool to subtract them.

Use "spectre -h vsource".

-Ken