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Cgs synth

Index last updated: 2026-04-28 23:16 UTC

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Re: CGS26 Analog Logic :: combined inputs

2009-08-31 by Ove Ridé

Sorry, that mail wasn't finished... I was going to search for teh
CGS26 schematic, but pressed send instead of save in GMail.

http://www.cgs.synth.net/modules/pic/schem_cgs26_analogic.gif
If this schematic is still valid you should be able to connect the
input with no problem. The pulls are mainly there to define a default
value, and shouldn't interefere, not noticably anyway.
If it does, one of the gates (either 'and' or 'or') will be silent
because it's stuck in the "wrong" state, which is 0 for 'and' and 1
for 'or'.
(0 AND anything = 0, 1 OR anything = 1)
If this happens, even though it shouldn't, decrease all six of the
pulls to something slightly lower, maybe 68k or 47k.


2009/8/31 gddfp <guy@...>:
>
>
> I wish to set up this module's panel in a manner as practical as possible
> (for me).
>
> So I'd like to have some sort of "combined inputs", having these going to
> both the AND and OR sections at the same time.
>
> I understand that this isn't directly possible due to interference between
> the pull-up and pull-down resistors at the inputs, but I was wondering if
> there's any other way to accomplish this ? I've got some extra space left on
> the panel, where I could place extra inputs or switches or something...
>
> cheers,
> _guy
>
>



--
/Ove

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--
/Ove

-----BEGIN 2ROT13 MESSAGE-----
Blog:
<http://gameboygenius.8bitcollective.com/>
SKRIVA på Lysator. Ditt Ahrvid-fria alternativ:
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Sätt på ett par flipflops, vippa på rumpan
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