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Date:	Wed, 12 Mar 2014 10:00:17 -0400
From:	"Stephen R. Besch" <sbesch AT buffalo DOT edu>
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To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] Declare a pin as GND in symbol
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On 03/12/2014 09:51 AM, Stephen R. Besch wrote:
> Rob,
>
> I've done this in the past and if I recall it's quite straightforward. 
> Put a suitable pad in the footprint and give it a pin number that 
> corresponds to the thermal pad under the chip. If the pad doesn't have 
> a pin number in the part specification, make one up. Then in the 
> symbol file add a net attribute and set it's value to GND:x where x is 
> the pin number of the thermal pad. Just make sure that the spelling of 
> GND matches exactly the spelling used everywhere else. If I recall, 
> capitalization matters.
>
> Steve Besch
OOPS!! I forgot to mention that there cannot be a pin defined in the 
symbol file which has the same number at that used in the net=GND:x 
attribute. I'm not sure what will happen if there is, but I am sure that 
it is probably undefined.

Steve Besch

>
> On 03/11/2014 05:48 PM, Rob Butts wrote:
>> I couldn't find the answer in the symbol guide.
>>
>> I made a symbol for an 8-pin soic component that has a thermal pad under
>> the chip that is recommended to connect to ground.  I don't want to show
>> the pin on the symbol but want to declare that hidden pin as a GND:1 net
>> connection.
>>
>> I've seen it in symbols but can't find how to do it.
>>
>
>



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