Yeah, I see both of them now.
Yes, that circuit looks about right. I wouldn't use an LS chip for the schmidtt triggers. 74HC04 is low power. That part of the circuit looks like you cut and paste from some example circuit so perhaps that's all that was about.
What schematic software are you using?
Mike
--- In korgpolyex@yahoogroups.com, "bimmerfan222" <bperkins211@...> wrote:
>
>
>
> Yes, the photo is on here in the Photos folder under "Encoder Project".
>
> http://groups.yahoo.com/group/korgpolyex/photos/album/303237603/pic/list
>
>
> I guess it didnt like me using a direct link to the picture itself.
>
> Be sure to click on "Original" next to the View options to see the full size pic.
>
> -Blaine
>
>
> --- In korgpolyex@yahoogroups.com, Michael Hawkins <korgpolyex800@> wrote:
> >
> > I am getting "We are sorry, you can not display images hosted by Yahoo! Groups on non Yahoo! Groups pages." when I try your link.
> >
> > Is the diagram in korgpolyex somewhere?
> >
> > Mike
> >
> >
> >
> > ________________________________
> > From: bimmerfan222 <bperkins211@>
> > To: korgpolyex@yahoogroups.com
> > Sent: Saturday, April 21, 2012 12:02 PM
> > Subject: [korgpolyex] Encoder/Decoder Circuit with counter & buffer
> >
> >
> > Â
> > Hey Mike,
> >
> > I've uploaded a pic of an encoder circuit using the chips you suggested.
> >
> > http://xa.yimg.com/kq/groups/3694848/or/465001900/name/encoder+counter+%26+buffer+circuit+v2.jpg
> >
> > I chose to use a dual FF IC (74HC74D) to decode the encoder.. I also tried to include a debouncing circuit before the signals go into the FF.
> >
> > Please take a look and see if this is on the right path. I left the 4024's reset line and the 74HC244's enable lines open for you to possibly show me how you use them with the Hawk Boards I/O lines.
> > I assume the outs on the 244 go directly to the main CPU bus.
> >
> > Of course I only showed half of the full circuit for one encoder.. X out circuit is the same as Y outputs circuit.
> >
> > I assume the counter changes it's output lines as a binary number.. so in essence, with 7 bits it can produce a number between 0 to 127?
> >
> > Is it possible to test this thing with LED's at the outputs of either the counter or the buffer using a simple breadboard and 7 LED's?
> >
> > Any further suggestions? Am I on the right path with this design?
> >
> > Thanks in advance for all your help.
> >
> > -Blaine
> >
>