Re: gEDA-user: How to divide large symbols in smaller units?

[Steve Meier <smeier@xxxxxxxxxxxxxxxxxxx>]

I tend to not use the pin sequence if the device has only one slot. A
7400 quad nand gate has four slots one for each gate.

Steve M.

Stefan Salewski wrote:
> Am Mittwoch, den 20.06.2007, 16:49 -0400 schrieb DJ Delorie:
>   
>>> is it possible and useful to divide a gschem symbol with very many pins
>>> in multiple smaller symbols?
>>>       
>> Yup.  Just give each part the same refdes, and the netlister merges
>> them automatically.
>>
>>     
>
> Hello,
>
> I am building my first symbol consisting of multiple sub-symbols.
> It is an ADC (analog to digital converter) with 64 pins. I plan to draw
> one subsymbol with gschem containing two analog inputs and one output
> for a reference (common mode) voltage. The two other subsymbols
> containing power-supply and other pins I will generate with djboxsym.
>
> Two Questions:
>
> How shall i handle pinseq attributes? Have I to fix it so that all pins
> have unique pinseq? (I think I have seen symbols without pinseq
> attributes, but http://geda.seul.org/wiki/geda:scg tells us that each
> pin should have pinseq attribute.
>
> How shall i handle other common attributes like footprint, device,
> description ... Someone wrote to my request that i should only give one
> subsymbol a footprint attribute. But what is with the other unattached
> attributes?
>
> Can gsymcheck check symbols consisting of multiple subsymbols?
>
> Thanks
>
> Stefan Salewski
>
>
>
>
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>   



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