[sdiy] Pressing buttons

[Paul Maddox]

Marjan,

four SR flipflips?
and some or gates..

hooked up so that a SET on ONE SR goes to the reset of the other three (via
OR gate)
you then need a global 'reset' to clear the active one..

Paul


----- Original Message -----
From: ">>>marjan<<<" <urekar.m at EUnet.yu>
To: "Synth-DIY" <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, May 12, 2002 8:14 PM
Subject: [sdiy] Pressing buttons


>
> I'm in need of nice little cct, there are 4 buttons SPST,
> I need 4 outputs, when you press button#1 output#1 goes to
> logic 1 (high) all other outputs to 0, press button#2
> output #2 goes high all others to 0 and so on.
> Also output must stay high until active, not just a pulse.
> And it should be CMOS.
> I'd make it but my mind spits just sorta priority
> codec with f-fs solution, with lotsa gates. There should
> be something more elegant and simple, even inside a cmos
> chip?
>
> I know you know it!
> And no PIC solutions please :)
>
> ThanX!
>
> --
>
>
>
> marjan
>
>
> me    : Marjan Urekar
> e-mail: urekar.m at eunet.yu
> s-diy : http://surf.to/marjansystems
> music : http://go.to/forcemajeure
>
>