gEDA-user: Simulation questions using gnucap

[Robert Butts]

Al,

In the acs-tutorial, is acs an old title for gnucap?  The reason why I'm
asking is, as you said, it is outdated.  As I was reading through it I
thought I could try to update it, of course with help and direction.  Would
it be worth the time?


On Jan 1, 2008 8:59 PM, al davis <ad151 at freeelectron.net> wrote:

> On Tuesday 01 January 2008, Robert Butts wrote:
> > Below is the output from gnetlist and gnucap.  Toward the
> > bottom is the gnucap output where it lists "?" faults.  I
> > suspect the problem is with the TL072's subcircuit I
> > downloaded from TI.  I am not able to find any info on the
> > components used in the subcircuit and therefore am having a
> > tough time finding what is causing the faults.
>
> > Also gnucap's
> > documentation refers you to a tutorial that I haven't been
> > able to find.
>
> There is a file "acs-tutorial" in the "doc" directory.
>
> It was written a long time ago and doesn't describe changes made
> since then.
>
> >
> > [rob at localhost project-micSwitch]$ gnucap micSwitch4Sim.cir
>
> I am not sure what you intend, but you are running it in
> interactive mode, using the circuit in micSwitch4Sim.cir.
>
> > Gnucap 0.35
>
> > micSwitch4Sim.sch EGND 99  0 POLY(2) (3,0) (4,0) 0 .5 .5
> >                      ^ ? need 1 more nodes
> >   EGND 99  0 POLY(2) (3,0) (4,0) 0 .5 .5
> >                            ^ ? what's this?
> >   FB    7 99 POLY(5) VB VC VE VLP VLN 0 4.715E6 -5E6 5E6 5E6
> >                      ^ ? what's this?
>
> High order POLY is not supported yet.
>
> >   J1   11  2 10 JX
> >   ^ ? illegal type
> >   J2   12  1 10 JX
> >   ^ ? illegal type
> > .MODEL JX PJF(IS=15.00E-12 BETA=270.1E-6 VTO=-1)
> >              ^ ? not implemented
>
> JFET is not built-in.  To use a JFET, you need the development
> version, and the JFET plugin, which is in the "models-spice3f5"
> tarball.
>
>
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