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Mail Archives: geda-user/2014/10/23/13:34:03

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From: Joshua Lansford <joshua DOT lansford AT laserlinc DOT com>
Date: Thu, 23 Oct 2014 13:32:37 -0400
Message-ID: <CAGRhJMb0vD4w+pM2d1pd60kJyB-7Dn=Rg2wNiBMFACFPwJFYKA@mail.gmail.com>
Subject: Re: [geda-user] Is someone using busses in gschem?
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>
> On 22 October 2014 20:52, DJ Delorie <dj AT delorie DOT com> wrote:
>
>>
>> > So current gschem busses are only a visual guide of connectivity,
>> > with no impact to netlist.
>>
>> Right.  Busses have nothing to do with netlists.
>>
>
I use busses.  They don't effect the netlist, but they do effect a custom
drc:
This drc verifies that no nets connect together without a graphical element
indicating such.
The script also updates off page connectors to indicate which page(s) they
connect to for nets and busses.
This makes it so that if it doesn't look like two nets are connected, they
aren't.  Accidental connections are impossible. (in theory :-P)
http://public.laserlinc.com/Joshua/crossRefSignals.py

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<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote"><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #c=
cc solid;padding-left:1ex"><div class=3D"HOEnZb"><div class=3D"h5"><div cla=
ss=3D"gmail_extra"><div class=3D"gmail_quote">On 22 October 2014 20:52, DJ =
Delorie <span dir=3D"ltr">&lt;<a href=3D"mailto:dj AT delorie DOT com" target=3D"_=
blank">dj AT delorie DOT com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_q=
uote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1e=
x"><span><br>
&gt; So current gschem busses are only a visual guide of connectivity,<br>
&gt; with no impact to netlist.<br>
<br>
</span>Right.=C2=A0 Busses have nothing to do with netlists.<br>
</blockquote></div></div></div></div></blockquote></div><br></div><div clas=
s=3D"gmail_extra">I use busses.=C2=A0 They don&#39;t effect the netlist, bu=
t they do effect a custom drc:</div><div class=3D"gmail_extra">This drc ver=
ifies that no nets connect together without a graphical element indicating =
such.</div><div class=3D"gmail_extra">The script also updates off page conn=
ectors to indicate which page(s) they connect to for nets and busses.</div>=
<div class=3D"gmail_extra">This makes it so that if it doesn&#39;t look lik=
e two nets are connected, they aren&#39;t.=C2=A0 Accidental connections are=
 impossible. (in theory :-P)</div><div class=3D"gmail_extra"><a href=3D"htt=
p://public.laserlinc.com/Joshua/crossRefSignals.py">http://public.laserlinc=
.com/Joshua/crossRefSignals.py</a></div><div class=3D"gmail_extra"><br></di=
v></div>

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