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Re: [Help-gnucap] Which Schematic Program

From: Jorge Ernesto Guevara Cuenca
Subject: Re: [Help-gnucap] Which Schematic Program
Date: Wed, 3 May 2006 22:06:55 -0500


On 5/3/06, al davis <address@hidden> wrote:
On Wednesday 03 May 2006 14:24, Markus Feldmann wrote:
> does anybody know a schematic Editor?
> gschem seems to be very old and unstable.
> I am working on Debian.

There are two that I know of:  "gschem" and "oregano".

"gschem" makes nicer schematics and has a more complete symbol
library.  The user interface takes some getting used to, but it
is not bad after you do.  To simulate, you need an external
translator "gnetlist", which doesn't work very well.  You make
the schematic, save it, then run gnetlist with the option "-g
spice_sdb" which gives you a first cut.  If any nets have text
names, they will be preserved, so you need a recent development
snapshot of gnucap that supports text node names.  Sometimes,
the netlists require minor editing.

I am using in Debian gschem, gnetlist and gnucap combination and that
work fine. I recommend use the -s parameter with gnetlist, this is
special for the netlist output for gnucap.

"oregano" is much more newbie friendly, but is more limited in
its capability.  It extracts the netlist automatically, and
runs gnucap through its menus.

In both, there are some symbols that do not correctly translate
to a netlist.  In oregano, most that have a counterpart
translate reasonably, or can be configured to translate
reasonably.  The configuration is based on a template that is
user definable.  The "gnetlist" translator is written in an
all-verb style that requires explicit translation of every
detail, so only a small subset of the symbols are translated.
Those that are not supported require programming in guile to

Overall, I think gschem is better suited to the experienced
user, who is willing to do a little hacking, and oregano is
better suited to someone with less experience, such as a

Neither are as slick as Multi-sim, which hides too much.  I
think oregano is more newbie-friendly than PSpice.

Both are in Debian.  The version of gnucap in debian is not the
latest.  Actually, it is the latest "stable version", but there
have been significant changes, so I recommend the development
snapshot, which you need to compile and install the hard way.

Debian stable usually has very old versions.  If you want
something reasonably up to date, use either the testing or
unstable versions of Debian.

Help-gnucap mailing list

Sorry for my bad english.
Jorge Ernesto Guevara Cuenca
El sitio de Software Libre y Linux en Colombia

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