Re: gEDA-user: ngspice - simple lowpass simulation (newbie)

[Fabio <mailinglists@xxxxxxxxxxxx>]

Le 12 oct. 2010 à 17:12, John Doty a écrit :

> 
> On Oct 12, 2010, at 8:36 AM, Fabio wrote:
> 
>> Error on line 134 : u1 0 1 vcc vss vout lf353/ns
>> Unable to find definition of model vss - default assumed 
>> unknown parameter (vout) 
> 

Dear John,

> If the component represents a subcircuit, SPICE requires that its refdes start with "X", not "U".

Thank you, I wasn't sure because in one of the official tutorial the refdes of the AOP are U1 and U2.
My new refdes is XAO1. However, I now have the following error:

--
 $ ngspice 83 -> source ./spice.net
 Circuit: * gnetlist -g spice-sdb -o spice.net lowpass.sch
 Error on line 0 : e.xoa1.eos xoa1.7 0 POLY( 1 ) xoa1.16 xoa1.49 5e-3 1
 unknown parameter (xoa1.16) 
 Error on line 0 : f.xoa1.f1 xoa1.9 xoa1.98 POLY( 1 ) v.xoa1.va3 0 0 0 1.0985e7
 unknown parameter (v.xoa1.va3) 
--

I have a similar error when I switch to the UA741 (rather than LF353). I've found a geda tutorial that uses an AOP, but I couldn't run ngspice on it either (http://www-mdp.eng.cam.ac.uk/web/CD/engapps/geda/starting_gEDA_long.pdf).

I'd be very grateful if someone could tell me what's the meaning of the error or send me a working example with an AOP.

The new .sch is here:
http://bit.ly/cGLf0t

Thank you,
Fabio

> 
> John Doty              Noqsi Aerospace, Ltd.
> http://www.noqsi.com/
> jpd@xxxxxxxxx
> 
> 
> 
> 
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