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Simulators >> Circuit Simulators >> How to co-simulate Verilog with Spectre ??
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Message started by Faisal on Jul 4^th, 2006, 9:04am

Title: How to co-simulate Verilog with Spectre ??
Post by Faisal on Jul 4^th, 2006, 9:04am

Hi,

I need to know if there exist a mechanism through which i can co-simulate my digitial design in a Verilog simulator lilke ModelSim/NC-Verilog and my analog design in Spectre ??

Faisal

Title: Re: How to co-simulate Verilog with Spectre ??
Post by ACWWong on Jul 5^th, 2006, 5:57am

Yes, you can use spectreVerilog (although this is an old tool) or AMSdesigner, both are standard tools from Cadence.

spectreVerilog uses spectre for analog and a sperate verilog executable for the digital. It is ok for large analog/small digital, but as you only simulate analog or digital at any one time, (it has two kernels, one analog, the other digital and the tool handles the interface between them) it might not be suitable for designs which have alot of analog to digital communication.

AMS designer is a replacement to spectreVerilog and is more efficient in handling both domains in one kernel. In experience its a bit of pig to setup correctly.

anyway you can find more infomation from cadence.

Title: Re: How to co-simulate Verilog with Spectre ??
Post by jbdavid on Aug 11^th, 2006, 1:10am

There is LOTS more info on this in the AMS simulators section of this forum

and at http://www.bmas-conf.org

ncsim -ams uses the spectre solver for the transitor part of the simulation (and any Verilog-A and analog part of Verilog-AMS models.. )
Rest is event driven.

Title: Re: How to co-simulate Verilog with Spectre ??
Post by Faisal on Aug 11^th, 2006, 2:44am

Yes, I am now using AMS Simulator and its indeed very helpful in exploring designs at the architectural/behavioral level