Rhythm generator

[WJ Bland]

On Wed, 14 Apr 1999, Paul Maddox wrote:

[snip]
> >My next idea was to replace the switches by latches (i.e.  chips
> >that can each store one 8-bit number).  Then I would just need 8
> >switches to select frequencies, and 16 "store" switches
> >to update the latch for each drum sound.
> >
> 
> yeah, possible, Have you thought about crosspoint switches? I did 
> (little chips with a 4 by 4  (or bigger) matrix in)

No, I haven't looked at these yet (never heard of them in fact!).  I'll
have a look. Maybe they'll help.

[snip]
> I thought about latches and D-type flip flops, but I gave up, and 
> started trying to use a uC (micro controller) , I was going to use an 
> AVR, this had the advnatge of only needing 24 switches... 16 for the 
> bottom and 8 for the channels, you select a channel(s) then program 
> the step on the 16 switches at the bottom...
> This had the davnatge of makeing it so I could later add pattern 
> programming, RAM and so on... but I'm no good with programming...
> if you fancy trying to program one I can help with the hardware 
> design, but as for the software sorry Im cr*p at it.. I'm pinching a 
> friends Midi G-Gate generator (16 channels) and I'll do the 
> programming from pro24 on my ickle atari st.

Hmmm, I had thought of using a uC (I was thinking the PICs look quite
nice?) but, like you, I decided I just can't be bothered to program one!
;-)

> hope this has helped a little.
> Paul MAddox
> 

Some good ideas Paul - thanks for the reply.

Cheers,
	Bill.