Re: gEDA-user: gEDA on windows

["Mark Rages" <markrages@xxxxxxxxx>]

On Mon, Jan 12, 2009 at 1:36 PM, Joerg <joergsch@xxxxxxxxxxxxxxxxxxxxx> wrote:
> John Doty wrote:
>
> Ok, I'll try, it's been a long time since I tested it:
>
> Take the LM324 as an example. It is a chip with four opamps in there:
> http://www.national.com/ds/LM/LM124.pdf
>
> When you place the first instantation it'll be pins 1,2,3, the next one
> 5,6,7 and so on. But all are supplied via the common supply pins 4 and
> 11. In gschem you only have two choices. Either you create a library
> model that repeats those pins 4 and 11 visibly for all four
> instantations or you create the library part with the power pins
> detached where none of the instantations show power pins. This can be
> practical for auto-connecting digital stuff to a VCC rail but it doesn't
> work well in the analog world. Now you could also have pins 11 and 4 as
> a separate "fifth" device. Anyhow, neither method looks professional,
> neither is industry practice, and all make schematics more difficult to
> understand for others. Especially for non-analog guys.
>

You can always use two symbols, one with power pins and one without.
That's what I do.

Regards,
Mark
markrages@gmail
-- 
Mark Rages, Engineer
Midwest Telecine LLC
markrages@xxxxxxxxxxxxxxxxxxx


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