More Digital Content..

[Rob01]

Actually, before suggesting the ROM solution, my first thought was to
suggest going microprocessor or (even better) micro-controler.

15 years ago, 99% of the digital part of DIY synths projects used to
be handled by incredibly complex AND - OR gates systems. 

Hey, dont knock it :)) I learned a good deal more about microprocessors
after i designed and built a midi to cv converter using ONLY discrete
gates, a UART, and a few registers than i EVER learned in my
microprocessors
class... by the way, I HATE using index addressing :))
P.S. mind you, only after i went through the hell of building the evil
thing did
i realize i actually built a very function specific microcomputer in its
own right!
The timing problems of the logic were enourmous, and finally it worked. It 
eventually started to have timing problems again after about a week of use,

and i burned the damn thing in a bonfire while drinking with a few friends.
A 
friend of mine stated that it prolly started having timing problems again
due
to burn in of the chips. burn in, how ironic.whatever. But to prove a
point, 
you should really use one of those basic stamps processors, and program 
it using basic. Much easier, 
AND i believe you can get them fast enough to do just about anything.

you prolly could run a binary to decimal routine in the unit itself, and
send
the output from the chip directly to the display decoder.. plus there is no

need for learning ASM. BUT you have to look at your project from a 
completely different angle once you go with a micro. You have to think
in terms of register swapping, shifting left and right (which is just */ by
2)
rotating, and manipulating data and checking for conditions in different 
register places to get out what you want.. But i dont think you have as 
much cranial sweat involved with the basic stamp micro..
good luck, whatever you decide..

                  Rob01
             Zeros & Ones
The Mind Controls the Machine 
The Machine Controls the Body