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From: | Kai-Martin Knaak <kmk AT familieknaak DOT de> |
Subject: | Re: [geda-user] Star connection points in PCB? |
Date: | Wed, 18 Feb 2015 09:54:43 +0100 |
Lines: | 36 |
Message-ID: | <mc1k0k$oaa$1@ger.gmane.org> |
References: | <1502170242 DOT AA18887 AT ivan DOT Harhan DOT ORG> <alpine DOT DEB DOT 2 DOT 00 DOT 1502170501000 DOT 7324 AT igor2priv> <54E354D4 DOT 3040509 AT ecosensory DOT com> |
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John Griessen wrote: > On 02/16/2015 10:33 PM, > gedau AT igor2 DOT repo DOT hu wrote: >> Proposal 3 >> >> Add a component flag in pcb that tells "there is no short between >> the pads of this component, even if they overlap!", then draw the >> actual star out of pads. > I like this because the netlist generated is sane. One sees the > converging of power nets at a symbol, and that > symbol can relate to a physical location. I like this approach, too. It also kind of resolves the case where a actual component connects some of its pins internally. This is quite common with switches and other mechanical components like shielding. >> Drawbacks: >> >> - the same pin numbering and back-annotation problem that you >> have with connectors @Igor2: Would you mind to elaborate? >> - the star symbol/footprint will have explicit number of pins, >> you may end up unused pins or will have to replace with the next >> bigger if more nets are to be connected The pads of the star symbol can be 100% overlapping in the footprint. So a replacement won't break the layout. ---<)kaimartin(>---
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