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To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Useful things (in gschem)
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References: <20111217222836 DOT 2A0CB81FD92A AT turkos DOT aspodata DOT se> <4EED24D7 DOT 3090305 AT penguindevelopment DOT org>
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   message dated "Sun, 18 Dec 2011 00:25:11 +0100."
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Message-Id: <20111218132311.63B2581FD92E@turkos.aspodata.se>
Date: Sun, 18 Dec 2011 14:23:11 +0100 (CET)
From: karl AT aspodata DOT se (Karl Hammar)
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link AT penguindevelopment DOT org:
> On 17/12/11 23:28, Karl Hammar wrote:
> > What would be useful is (in gschem):
> >
> > . to be able to say to gschem that this and this ... and this pin are
> >    on the same net; connect them!
...
> For the first point, do you mean you want gschem to actually draw a net 
> between those pins,

That would be nice, wouldn't it?

> or just to have them be connected in the netlister 
> output?

That is at least a starting point.

> Because the latter can be done by either adding a net-attribute 
> to the component symbols (e.g. add an attribute "net=Vcc:8" to a 
> component to connect pin 8 of that component to Vcc; plenty of examples 
> in the "74-series logic" and "4000-series logic" categories), or 

Aha, the :num part is pin number or -label.
Ok, found it in $gitroot/gaf/docs/wiki/geda-na_howto.html

> attaching one of the net-labelling symbols (e.g. generic-power.sym, 
> input-2.sym, output-2.sym, io-1.sym...) and setting the net-attribute on 
> that.

Ok, the first step would be to made is:

. take such a net-symbol
. attach a short net line to it
. connect it to the pin
. grab the pins pinlabel and
. set the net-symbols net attribute to the pinlabels value

Then I could manually copy that net-symbol+net-line to the next
place/component.

Can a plugin do such things?

> If you do mean letting gschem auto-draw the nets, I'd say that if 
> a net is too complicated to draw manually, it's probably better to use 
> the aforementioned net-labelling symbols anyway.

Why do people use auto-routers...

Regards,
/Karl Hammar

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