Re: gEDA-user: TwoStageAmp example

["Patrick Doyle" <wpdster-atMUNGEDgmail_dot_com>]

> > Also, FWIW, the 3-29 snapshot crashes when I try to analyze
> > the netlist from Stuarts TwoStageAmp example... at least it
> > does when I try to run the version I built today. I have,
> > perhaps, attached the netlist for your review. If it works
> > fine for you, then I'll try rebuilding and paying more
> > attention to what's going on.
>
> Any crash is a bug, but it didn't crash for me.  Your commands
> are incorrect.  Mine acted as expected for the input you gave.
>
> You did not supply "Simulation.cmd".  I made an empty one.

Oops -- sorry 'bout that chief.  It might be attached here (renamed as
Simulation.cmdx since gmail won't let me attach it named as
"Simulation.cmd").  Perhaps that is what caused the segmentation fault
-- or perhaps it is something in my build environment (a standard FC6
box, Gnucap configured only with a --prefix option).

> >
> > Here's what crashes for me:
> >
> > $ ~/local/bin/gnucap spice.netlist.wpd
> > gnucap> plot ac v(Vout)
> > gnucap> ac dec 1Hz 1MegHz
> >
> > #Freq
> > Segmentation fault
>
> 1.  You need to do "op" before "ac".  This is a difference
> between gnucap and spice.  If you don't your AC results will be
> an accurate representation of what the circuit does with the
> power off.  AC uses the last operating point from op, dc, or
> tran.  Spice always forces an op, and uses it to set up for AC.
> The gnucap way is more flexible.  It adds capabilities that are
> important to an analog designer.

Yeah, I noticed that when I reread the documentation.  So I tried the
"op" and got the same segmentation fault.  If it still doesn't crash
for you, then I'll dig into it on my end.

Thanks again for the help.

--wpd

Simulation.cmdx

_______________________________________________
geda-user mailing list
geda-user@moria.seul.org
http://www.seul.org/cgi-bin/mailman/listinfo/geda-user