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From:	karl AT aspodata DOT se
To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] 100 pin pic24 symbol comes out huge
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Comments:	In-reply-to Rob Butts <r DOT butts2 AT gmail DOT com>
	message dated "Fri, 13 Dec 2013 15:44:27 -0500."
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Date:	Fri, 13 Dec 2013 22:36:24 +0100 (CET)
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Rob Butts:
> I tried to make a symbol for a TQFP100 processor.  I did the standard
> symbol where I zoomed in five levels and started adding pins; 25 pins for
> each of the four sides.  By the time I was done I had to zoom out a few
> times to make the box.

There are symbol generators for that kind of tedious work.

BTW, is there a list of available symbol generators ?
Thoose I know about are:

 http://www.gedasymbols.org/user/dj_delorie/tools/djboxsym.html
 http://wiki.geda-project.org/geda:tragesym_readme
 http://turkos.aspodata.se/git/openhw/pdftosym/pintosym.pl (my projekt)

> When I add the component to a schematic it is astronomical.  How are these
> big ICs symbolized?

You can make a few symbols for different parts of the component.
Having the same footprint and refdes attribute makes them be treated 
like the same thing.

Have a look at e.g. stm32f100lm.*.LQFP48.sym files in:

 http://turkos.aspodata.se/git/openhw/pdftosym/examples.pintosym/

I have made a test board (test.sch) in:

 http://turkos.aspodata.se/git/openhw/arm_mcu/

(and, ohh yes, it depends on a few symbols from cvs.gedasymbols.org,
maybe I should have included them into that directory).

Regards,
/Karl Hammar

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