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Subject:	Re: [geda-user] Silkscreened component values, mailing list, and
	gEDA development
From:	Peter Clifton <pcjc2 AT cam DOT ac DOT uk>
To:	geda-user AT delorie DOT com
Date:	Mon, 30 Jun 2014 13:02:40 +0100
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On Sun, 2014-06-29 at 15:30 -0500, mskala AT ansuz DOT sooke DOT bc DOT ca wrote:

> Finally, are there any plans for the diode schematic symbols and
> footprints to ever agree with each other about which pin is the cathode?

I think diode-3.sym agrees with the ACY series diodes in PCB (or at
least, has reversed pin 1 & 2 from diode-1.sym.


> I have found bug reports about this dating at least as far back as May
> 2005, but nothing seems to have been done about it in nine years.

Its not like we can arbitrarily change any of the existing symbols..
doing so would break otherwise working designs.

> If I 
> will be required to triple check every symbol and footprint and define my
> own a large fraction of the time because there's a significant chance of
> the default ones being as catastrophically broken as diodes are, then that
> may be a dealbreaking issue and is at least something I'd like to know
> about before I invest any more time in gEDA.

Can I strongly suggest that whatever tool you end up using, you DO spend
time checking footprint / schematic pin-outs match, hidden power pins
(if any) connect to the nets you expect, and that physical footprints
actually match the components you bought.

Doing all the above is a routine part of designing PCBs that will save
you no end of cost and time where inconsistencies arise. I know
designers who basically throw out huge component libraries from big
commercial EDA vendors, because they are not reliable enough to trust
out of the box.

If you haven't found it yet, http://www.gedasymbols.org/ is a useful
place to find and share symbols for gEDA.


-- 
Peter Clifton <peter DOT clifton AT clifton-electronics DOT co DOT uk>

Clifton Electronics

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