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Mail Archives: geda-help/2017/02/18/13:30:51

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Subject: Re: [geda-help] Please help with multiple-pages schematics
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From: John Doty <jpd AT noqsi DOT com>
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Date: Sat, 18 Feb 2017 11:29:39 -0700
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On Feb 18, 2017, at 11:02 AM, Vladimir Zhbanov (vzhbanov AT gmail DOT com) [via =
geda-help AT delorie DOT com] <geda-help AT delorie DOT com> wrote:

> On Sat, Feb 18, 2017 at 10:39:06AM -0700, John Doty wrote:
>>=20
>> On Feb 18, 2017, at 3:41 AM, Peter Clifton =
(petercjclifton AT googlemail DOT com) [via geda-help AT delorie DOT com] =
<geda-help AT delorie DOT com> wrote:
>>=20
>>>=20
>>> On 18 February 2017 at 08:27, Vasily Olekhov (olekhov AT gmail DOT com) =
[via geda-help AT delorie DOT com] <geda-help AT delorie DOT com> wrote:
>>> Thank you John, I've got your point.
>>> Can you hint how should I reference CONN1 on the second page?
>>> It should be the same component CONN1 from the first page.
>>>=20
>>> This is a slightly unusual way of doing things. I _thought_ it =
should work, but having checked, it is actually generating a bad =
netlist.
>>>=20
>>> My Windows dual-boot has gEDA 1.6.1..... so this could be some bug =
which is fixed since then. What version do you use?
>>>=20
>>=20
>> This is a very old bug. I suppose it=92s rarely encountered: most of =
us don=92t try to do things that way. It=92s still present in lepton =
pulled from git yesterday.
>=20
> Yes, this is
> 1) a misguiding abuse of components in schematics

On the other hand, we *do* allow the case of a =93package=94 derived =
from multiple symbol instances. Here, Vasily is trying to use that =
freedom in a way that appears to make sense in his application.

> 2) a bug in gnetlist consisting in having no check of package
> consistency wrt the number of its pins and conflicting pinnumbers
> (and pinseqs IIUC).

If we decide this is not allowed, the user should receive an error =
message rather than a bad netlist. Certainly, the back end should never =
encounter a pin connected to two different nets.

>=20
> --
>  Vladimir
>=20

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



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