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Date: Wed, 12 Mar 2014 15:13:41 -0700
Message-ID: <CAC4O8c8=tCXae2TGwZizmcacpnLwtLsG4=6NbvOFVqvyeJQHfQ@mail.gmail.com>
Subject: Re: [geda-user] identical symbol names
From: Britton Kerin <britton DOT kerin AT gmail DOT com>
To: geda-user AT delorie DOT com
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On Wed, Mar 12, 2014 at 5:16 AM,  <karl AT aspodata DOT se> wrote:
> Britton Kerin:
>> <svetonomer AT gmail DOT com> wrote:
>> > Unfortunately I think it will not be completed yet.
>> > This path is extremely laborious and time-consuming.
>> > It will therefore be abandoned as a result.
>> > And each one will, as before, to use for its proven crutches that will
>> > wander around the various corners of the Internet.
>>
>> Well I started out thinking its a bad idea but now I guess I'm convinced
>> integration sounds nice.
>
> What do mean with integration here, to include the syms a
> in-file-lib section, or to integrate gschem with git (or the like) ?

I have no religious belief one way or the other on this but the in-file-lib
sounds to me more likely to happen.

>> I think people should be ambitious and ask themselves what could be done to
>> get to the point where subcircuit designs could be gracefully distributed,
>> ideally with a default PCB layout/BOM that they map to.  People always say
>> you need different design rules, layouts etc. but truth is you often don't.
>> I'm sick of redesigning power supplies every project for example.
>
> Yes, it would be wery nice to be able to have function blocks both in
> gschem and pcb, and e.g. to be able to use that adj. ldo solution,
> but for 4.3V insted, and gschem calculates the correct resistor values
> (from formulas in the ldo subcircuit) and pcb picks it up complete with
> traces and all (which is done once and for all).
>
>> So you need either an ironclad convention for how (heavy) symbols used in
>> these modules are stored and versioned, or some way to freeze and integrate
>> them into a subdesign.  The first alternative is perfectly possible in
>> theory, but: a. it hasn't happened yet for gEDA, and b. more generally it
>> hasn't happened well for many other languages/libraries.  Also its not clear
>> that its better, assuming the conventions are honored enough to be useful,
>> the complexity is still there, its just enshrined as convention rather than
>> written down in the core code.
>
> I don't understand you here.
>
> If you would like to discuss subcircuits and the like, perhaps it's
> better to start a new thread.

Someone a while back was talking about how schematics would be more portable
if they came with an in-file-lib, this would apply to subcircuit schematics
as well I would think.  Its not the only thing you need for distributable
modules of course but its one piece.

Britton