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Simulators >> Circuit Simulators >> spice deck
https://designers-guide.org/forum/YaBB.pl?num=1126966223

Message started by neiyan on Sep 17^th, 2005, 7:10am

Title: spice deck
Post by neiyan on Sep 17^th, 2005, 7:10am

i would like to ask if there is a way to generate a spice deck that can be the input to third-party spice simulator software (e.g. winspice) to simulate a circuit created in composer schematic and with spectre model libraries?

Title: Re: spice deck
Post by Geoffrey_Coram on Sep 19^th, 2005, 6:22am

There are probably a few different ways to do this:

1) check the netlisting options available -- sometimes, even if the default is Spectre, you can ask for HSpice or CDSSpice or something that looks a lot more like standard spice, at least for simple circuits

2) write a translation script that converts Spectre to spice format:
m1 (d g s b) modName w=1u l=1u
just needs the parentheses removed, I think.

You'll need to do basic translation on the model libraries, too;
model nch bsim3v3
would become
.model nch nmos level=??
and you'd have to check your winspice documentation to see what level to use, and whether all the primitive models you need are available (eg, BSIM4 is not built into Berkeley Spice 3f5).

Title: Re: spice deck
Post by neiyan on Sep 19^th, 2005, 6:31am

for option 1, could i output to spice format while using spectre model libraries or i have to obtain spice model libraries?

Title: Re: spice deck
Post by Andrew Beckett on Sep 19^th, 2005, 9:01pm

neiyan,

The netlisting doesn't touch the model files - it just includes them (well, with cdsSpice it does some macro replacement and slight format modification, but I doubt you'd be using cdsSpice). Most likely if you're going to want SPICE syntax, you'd use the hspiceD interface.

So you'll need to either translate the model files into a syntax that winspice (or whatever) can handle, or get the supplier to provide them in that format.

Essentially this is what Geoffrey said in his append.

Regards,

Andrew

Title: Re: spice deck
Post by neiyan on Sep 20^th, 2005, 12:14am

thanks geoff & andrew..

i'll try it again and post my progress..

good day! ;D

Title: Re: spice deck
Post by neiyan on Sep 24^th, 2005, 8:14am

by the way, about the hSpiceD, how do i know if its installed? because in Simulator/Directory/Host, it is not listed as one of the simulators..if so, do i need to install it or could i use one of the installed simulators (cdsSpice, spectre, spectreS, <other verilog simulators>)?

Title: Re: spice deck
Post by Geoffrey_Coram on Sep 26^th, 2005, 6:07am

I thought you were going to run the sim in winspice? I think the netlisting code is available, even if the simulator isn't installed.

Title: Re: spice deck
Post by Andrew Beckett on Sep 27^th, 2005, 3:28am

For hspiceD, you need to be using at least IC5033 or later. Also, it probably needs the 32760 FEATURE in your license file to work...

Andrew.