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Simulators >> Circuit Simulators >> Create Symbol from Model
https://designers-guide.org/forum/YaBB.pl?num=1414598064

Message started by bki on Oct 29^th, 2014, 8:54am

Title: Create Symbol from Model
Post by bki on Oct 29^th, 2014, 8:54am

i have a external component that i want to simulate in Cadence.
It has 48 Pins. I have a spice model for it.

How can i create a symbol from the model in Cadence? I don´t want to draw a box with 48 pins by hand.

Title: Re: Create Symbol from Model
Post by Frank Wiedmann on Oct 30^th, 2014, 2:33am

You could use the scasubckt component from the analogLib library. The description given at http://www.designers-guide.org/Forum/YaBB.pl?num=1191334088 applies to IC5. In IC6, you don't need to add the dummy port to the netlist because the ref pin is simply ignored. See also http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNumber=11013814.

Another alternative would be to use the "Spice In" feature in IC6 (virtuoso -> File -> Import -> Spice) as mentioned in http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNumber=11557304. A detailed example for this is shown at http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNumber=11799764. From the created schematic, you can automatically generate a symbol view with Create -> Cellview -> From Cellview.

Title: Re: Create Symbol from Model
Post by bki on Oct 31^st, 2014, 2:50am

I am student. I can not access those links.

Can you please explain how to do it?!

Thanks!

Title: Re: Create Symbol from Model
Post by bki on Oct 31^st, 2014, 3:21am

I have a txt file like ABC.txt as spice model file.
Within the file i have a statement: library ABClib

Then i try: File->Import->SPICE
Input: Reference library: ABClib
Output: library: mylibrary

I get an error due to the reference library.

What is the problem?

Title: Re: Create Symbol from Model
Post by Frank Wiedmann on Oct 31^st, 2014, 6:35am

Probably that the library ABClib does not exist in your environment.