Mail Archives: geda-user/2013/01/31/05:01:56

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Date: Thu, 31 Jan 2013 11:01:36 +0100
From: Jan Kasprzak <kas AT fi DOT muni DOT cz>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] [patch] Pinnumbers in mosfet-with-diode-1.sym
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gedau AT igor2 DOT repo DOT hu wrote:
: On Wed, 30 Jan 2013, Stefan Salewski wrote:
: >This is something what confused me too when I used gEDA/PCB for the
: >first time, but there exist no easy solution. You should find
: >discussions of this problem in in the wike and in this mailing list, or
: >maybe on in older initial gEDA mailing list. DJ and others have mode
: >suggestions to solve such kind of problems, some suggestions use a
: >database to solve it.
: The solution I found easy is my devmap script: I can use the generic
: symbols with letters, then I attach a devmap attribute telling which
: actual device and footprint shall be used (e.g. bc817_sot23) and the
: rest is done while converting from gschem to pcb. Actual device maps
: are plain text files that describe attributes to be
: added/overwritten with a pinmap functionality that can replace pin
: numbers by value (so that pin C becomes pin 3). Device maps are easy
: to write, easy to maintain and VCS friendly. Schematics with the
: above "bc817_sot23" next to the symbol are readable, still not
: overtaxed with extra text.

	Interesting. It seems that devmap is not (yet?) packaged for
Fedora. I will have a look at it.

	The other problem is that the whole process (gschem -> gsch2pcb -> pcb)
_silently_ discards the nets with non-numeric pinnumbers. So you start with
a schematics, run gsch2pcb and pcb, and the resulting layout has missing
connections, without _any_ notification that something is wrong.


| Jan "Yenya" Kasprzak  <kas at { - work | - private}> |
| New GPG 4096R/A45477D5 - see |
|    Journal: |
Please don't top post and in particular don't attach entire digests to your
mail or we'll all soon be using bittorrent to read the list.     --Alan Cox

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