[sdiy] Using 8051 to build a synth

[Paul Maddox]

Scott,

> Thanks for the suggestions!!! :) Is there any other advantage that AVRs
have over
> 8051s?

I don't know the 8051 much, but I bet the AVRs have more memory, and more
features (UARTs, Interupts, PWM, etc).

> Right, don't think DSP was quite up to it back in those days?

Check out the PPG HDU, that'll scare you!
http://www.ppg.synth.net/hdu.htm

and remember this is 1986

> Do you mean a seperate multiplier chip or use write the machine code to
use 8051
> as a multiplier?

depends on how you're doing it.
If you controlling external analogue sources you'll need a 3280..
If its all internal to the AVR the just use a multiply command

output = signal * level

easy.

Paul