From: Roger Johansson
Subject: Re: Why can't I find an old used copy of Electronics Workbench?
Date: Tue, 03 Sep 2002 09:19:19 +0200
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"Spehro Pefhany" wrote:
>> That's correct. You can't. I don't think that there are any schematic
>> captures that talk to each other.
Amazing, considering that it will be hard to make users start to use a
program which cannot fully use standard formats, or even convert some
other popular formats.
>Protel will open Orcad schematics.
>> Its amazingly difficult to turn a netlist into a readable schematic.
>Unscrambling an egg?
It can't be too hard to use some autoplacement rules.
Positive supply line along the top, ground at the bottom.
All other devices with potentials between those power lines are placed
between the lines, taking the DC voltage as a hint of how high, how
close to the +power supply it should be placed.
If the program just makes a raw guess the user can move components to
get a better arrangement later.
The important thing is that all the components are there and that they
are connected correctly.
Input circuits, sensors, low current devices, at the left.
Power devices, outputs, to the right side.
Wires as short as possible.
Devices with a lot of pins gets its own area for addon components and
Ask the user for help.
With a few rules like that it should be possible to make a "netlist to
graphical display" routine.
It would be valuable for everybody who want to convert their old files
to swcad3 (or superspice) format, or use generic netlists from usenet
messages, for example.