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Date:	Wed, 11 Jul 2012 10:45:24 -0700
Message-ID:	<CAOP4iL1O5LpYu=qQ+Q6ii-yEwNJY24WdM2xwSNn+YZc1hKNOiQ@mail.gmail.com>
Subject:	Re: [geda-user] One big vs. a few smaller sym's for MCU's
From:	Ouabache Designworks <z3qmtr45 AT gmail DOT com>
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On 07/10/2012 12:24 PM, Bdale Garbee wrote:
>
>> Once you're past 100 pins or so on the device, breaking them up by
>> function so that you can have for example a page in the schematic that's
>> about the power supply, one that's about external memory interfaces, one
>> that's about network interfacing, etc etc etc, that can seem quite
>> useful... and make it worth the slightly larger effort of creating and
>> maintaining a set of symbols.
>>
>> That's my take on it, at least.
>>
>
>
Having a page dominated by one huge asic where most of it is whitespace is
rather
useless. I would almost consider doing an inverted symbol where the pins
point into
the graphic and you can use the interior whitespace for the rest of the
logic.


Another thought would be to place a package that shows for example four
op-amps but have
the ability to "fragment" that symbol and relocate any of the op-amps
independent of the
remainders. That way you could have one huge symbol with all the functions
separated  but
could still break it up and move the functions around.


John Eaton

Ouabache Designworks

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<br><br><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 07/10=
/2012 12:24 PM, Bdale Garbee wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
Once you&#39;re past 100 pins or so on the device, breaking them up by<br>
function so that you can have for example a page in the schematic that&#39;=
s<br>
about the power supply, one that&#39;s about external memory interfaces, on=
e<br>
that&#39;s about network interfacing, etc etc etc, that can seem quite<br>
useful... and make it worth the slightly larger effort of creating and<br>
maintaining a set of symbols.<br>
<br>
That&#39;s my take on it, at least.<br>
</blockquote>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
</font></span></blockquote></div><br>Having a page dominated by one huge as=
ic where most of it is whitespace is rather<br>useless. I would almost cons=
ider doing an inverted symbol where the pins point into<br>the graphic and =
you can use the interior whitespace for the rest of the logic.<br>
<br><br>Another thought would be to place a package that shows for example =
four op-amps but have<br>the ability to &quot;fragment&quot; that symbol an=
d relocate any of the op-amps independent of the<br>remainders. That way yo=
u could have one huge symbol with all the functions separated=A0 but<br>
could still break it up and move the functions around.<br><br><br>John Eato=
n<br><br>Ouabache Designworks<br>

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