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Subject: Re: jeapordy clicker circut design

Date: 04/02/02 at 5:21 PM
Posted by: Thumper
E-mail: o-sin@attbi.com
Message Posted:

In Reply to: Re: jeapordy clicker circut design posted by Russ Kincaid on 03/15/02 at 8:33 PM:

yeah , it needs to lock out the other 2 inputs but also there need to be 3 LED lights so you can tell which FF was first . In my design i switched to 3 sr-ff w/o enable and ran both the q and q~ inputs into AND gates , It works fine if all 3 click at the same time but my design is flawed .

1 2 3
---- ---- ----
|s q| |s q| |s q|
|r q~| |r q~| |r q~|
----- ---- ----

q1 q~2 into the first AND - (q1q~2)q~3 into AND
q2 q~1 into second AND - (q2q~1)q~3 into AND
q3 q~2 into third AND - (q3q~2)q~1 into AND

thats a rough way too show my circut , useing multisim to help design but im stumped . Am i going in the right direction with this or have i fallin of track ? Any advice would be apreciated


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