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Mail Archives: geda-user/2014/06/10/08:37:50

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Date: Tue, 10 Jun 2014 08:37:13 -0400
Message-ID: <CAOuGh8_8FvwUWcaKsbrzn5R2Sf30=HZHS6gOHtfp92Zr2daQfA@mail.gmail.com>
Subject: Re: [geda-user] Using PCB with a EDIF/Protel/PADS format netlist
generated by ORCAD?
From: Bob Paddock <graceindustries AT gmail DOT com>
To: geda-user AT delorie DOT com
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On Mon, Jun 9, 2014 at 9:17 PM, Jason White
<whitewaterssoftwareinfo AT gmail DOT com> wrote:
> Hello, recently I began using ORCAD at work. Long story short, the
> schematic capture side works like a dream, but the layout side is a
> mess. The schematic capture side supports exporting to something like
>>25 different formats and that leaves me wondering if there are any
> scripts floating around out there to convert one of them into the gEDA
> netlist format?

Some cryptic notes I wrote to myself about doing this years ago:

OrCAD Integra format netlist looks like this:

%PART
+3V             BT1
0.1uF           C1
...
%NET
N06426                  R8-2 Q3-BASE
N00495                  R13-2 Q6-COLLECTOR C2-1 Q7-COLLECTOR
*                       R11-2
N08216                  DS2-ANODE R2-2
N08220                  DS3-ANODE R3-2
$

PCB wants to see this:
N06426                  R8-2 Q3-1
N00495                  R13-2 Q6-3 C2-1 Q7-3 \
                        R11-2
N08216                  DS2-2 R2-2
N08220                  DS3-2 R3-2

In other words remove everything before, and including
%NET, and remove the final $.

Then change all <LF>"* text" to "text \"<LF>.

In other words change leading * to trailing backslash
on the previous line.

Change words like BASE/GATE to the appropriate PCB footprint number.
2N4401 are 1=Base 2=Emitter 3=Collector etc.

If your netlist is wrong as far as words vs numbers, then your board
will be wrong.

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