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Re: [Gnucap-devel] gnucap development snapshot 2007-12-16

From: Andrew Plumb
Subject: Re: [Gnucap-devel] gnucap development snapshot 2007-12-16
Date: Tue, 18 Dec 2007 20:47:20 -0500

Hi Al,

So, now that I'm not working at Cadence any more, I can dive into all this without any conflict of interest. :-)

On Mac OS X (Leopard/10.5.1), the models-bsim and models-spice3f5 won't build unless I comment out the #ifndef/#endif linux section in Include/cpstd.h. The models-ngspice17 version of Include/cpstd.h doesn't have it, so it builds without modifications.


On 18-Dec-07, at 1:10 PM, al davis wrote:

There is a new development snapshot of gnucap available.

There's a package at:

Models (optional) have also been updated:

Another optional package contains some tools:

These packages are mirrored at:

This snapshot provides ..

1. Improvements to time step control.  The algorithm is the same
but more devices participate in it, including the sources and
functions associated with simple components.

2. "M" (multiplicity) works on all devices, including

3. A minor change to the way the plugin packages unpack, so they
should build without further configuration if unpacked in the
same place as the main tarball.

As usual, to get started you need only the main package
gnucap-2007-12-16.tar.gz .  The other "models" packages contain
the exact models from the various sources.  If you need a jfet,
I recommend the one in "spice3f5".  If you need a BSIM model,
the obvious choice is the "bsim" package, which has all of
them.  The "ngspice17" package contains a few models not
available elsewhere, such as "vbic".

If you need others, let me know.  Others, such as Josephson
junction, are available, but I have not ported them yet.
Porting a Spice model usually requires two files, a "Makefile"
and a "wrapper.h", and no other changes.

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