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Mail Archives: geda-user/2015/02/04/14:46:38

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Subject: Re: [geda-user] FOSDEM
From: John Doty <jpd AT noqsi DOT com>
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Date: Wed, 4 Feb 2015 12:44:56 -0700
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On Feb 4, 2015, at 12:18 PM, Britton Kerin <britton DOT kerin AT gmail DOT com> wrote:

> I think there are really just four things that everyone does:
> 
> 1.  Get or make schematic symbols.  Many times this is a box with pins

Sometimes just a box with attributes, using pins supplied by pins2gsch (http://www.gedasymbols.org/user/john_doty/tools/pins2gsch.html).

> 2.  Get or make footprints
> 3.  Hook symbols to footprints

Not for breadboarding or ASIC.

> 4.  Save reusable, pre-layed-out subcircuits somehow

The missing piece is the interpretation of hierarchical netlists. In geda-gaf, it’s not terribly difficult to script the construction of hierarchical netlists. My ASIC layout contractor takes hierarchical SPICE and turns it into hierarchical layout, but the downstream tools for printed circuits aren’t usually so nice.

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com



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