delorie.com/archives/browse.cgi   search  
Mail Archives: geda-user/2015/06/12/15:07:28

X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient: geda-user AT delorie DOT com
X-Injected-Via-Gmane: http://gmane.org/
To: geda-user AT delorie DOT com
From: Kai-Martin Knaak <knaak AT iqo DOT uni-hannover DOT de>
Subject: Re: [geda-user] Parts with internally connected pins
Date: Fri, 12 Jun 2015 21:06:34 +0200
Organization: Institut =?ISO-8859-1?Q?f=FCr?= Quantenoptik
Lines: 37
Message-ID: <mlfajr$bpa$1@ger.gmane.org>
References: <B79C9937-FF0D-4301-9569-66E5EA167B03 AT till DOT com> <CA+uY=MTbF9im-DxJq2n+C3zE=p5FyLohUZ6bmtuCSm85BQi10w AT mail DOT gmail DOT com> <EC42E8F3-1598-4FC6-B71A-E50833CF949E AT till DOT com>
Mime-Version: 1.0
X-Complaints-To: usenet AT ger DOT gmane DOT org
X-Gmane-NNTP-Posting-Host: 130.75.103.107
User-Agent: KNode/4.14.1
X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id t5CJ6oMN003520
Reply-To: geda-user AT delorie DOT com

Donald Tillman wrote:

> My current approach, giving the shield pins the same pin number in the
> footprint, isn't bad, the rats nest just complains about missing
> connections.  And I can add the connections, it's not holding me up.

In some cases, the redundant connection can be considered beneficial. E.g. 
the multiple ground pins of a micro controller. Or the shield of a CAT6 
RJ45 connector. 

 
> But I'm wondering if there's an approach that's more preferable, that's
> more in line with the internals.
 
How about this:
1) all internally connected pins receive the same pin number
2) the designer can attach an ignore flag in the layout tool to the rat.
 
This would make pcb ignore the respective rat when it assembles the 
currently unmet rats nests. 

---<)kaimartin(>---
-- 
Kai-Martin Knaak                                  tel: +49-511-762-2895
Universität Hannover, Inst. für Quantenoptik      fax: +49-511-762-2211	
Welfengarten 1, 30167 Hannover           http://www.iqo.uni-hannover.de
GPG key:    http://pgp.mit.edu:11371/pks/lookup?search=Knaak+kmk&op=get



- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019