gEDA-user: RE: geda-user Digest, Vol 8, Issue 20

["KURT PETERS" <peterskurt@xxxxxxx>]

Stuart,
 Thanks for the update.  I will try to get the CVS version tonight.  I 
always dread doing that because the update process is not the clearest in my 
mind-- but I digress....
 The "final" change I made to the device attribute was actually a last act 
of desperation; it wasn't like that from the outset.

 Might it seem better to have the netlister just look at a different 
attribute instead of device like using a "type" attribute? I wonder that out 
loud because, although I understand the necessity to keep the simulation 
schematics separate from board schematics, it might make it slightly more 
difficult to copy between the two should you have a nice drawing handy that 
you just simulated.  Should the "device" attribute be used the way it seems 
to be used for spice-sdb, a copy might be impossible without further changes 
to each individual device/part.
 Frankly, I'm not sure what the "BOM" inputs would be in terms of "value", 
"device", "description", "footprint", etc. for the BOM-making tool since I 
haven't run it.  But, it would be "nice" not having "overlapping" attributes 
between "modes" of using gschem.  Just some thoughts.  BTW, I noticed "type" 
is no longer in the drop-down list for gschem (I think that's a change), but 
it is referenced here: 
http://www.geda.seul.org/docs/20040111/spice-sdb/netlist.html

Regards,
Kurt
------------------------------

Message: 4
Date: Tue, 9 Jan 2007 09:53:41 -0500 (EST)
From: Stuart Brorson <sdb@xxxxxxxxxx>
Subject: Re: gEDA-user: spice-sdb - NPN model in gschem
To: gEDA user mailing list <geda-user@xxxxxxxxxxxxxx>
Message-ID: <Pine.BSF.4.64.0701090946390.86963@xxxxxxxxxxxxxxxxxxxx>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

Hi Kurt --

I fixed your problem.  Several things were going on here.

1.  Somebody (maybe even me) changed the device attribute in
spice-npn-1.sym from NPN_TRANSISTOR to SPICE-NPN.  Since spice-sdb
looked for NPN_TRANSISTOR in order to know what to do, this change
meant that spice-sdb couldn't do the right thing with the symbol.

I fixed this by putting SPICE-NPN (and SPICE-PNP) into the dispatch
list in spice-sdb, so the symbol will now work.  Change is in CVS.

2.  In your schematic, you redefine the device attribute.  Don't do
that.  The device attribute should be a hidden attribute living on the
symbol.  Please remove that attribute from your schematic.

Kurt, please grab the latest stuff from CVS (or at least the latest
gnet-spice-sdb.scm), remove the device attribute from your schematic,
and try again.

A side note:  Gschem's new multiattribute editor is very nifty when
adding attributes, but is a PITA when it comes time to remove
attributes.  I wonder if a little re-think might find a way to add a
"delete" button to the multiattribute editor?  Maybe a job for the
upcoming code sprint?

Cheers,

Stuart




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