[sdiy] programmable synth module

[harrybissell]

john mahoney wrote:
comments inline...

> So, what can be improved over the PSIM-1? Here's a starting list:
> -- more RAM
> -- built-in MIDI in/out

And can be programmed via MIDI sysex ???  I suggest that we just steal
a sysex code from some horribly obscure, out-of-business company to
eliminate and additional development cost  :^P

Can respond to MIDI clock or other clocks (old Roland legacy stuff like
24ppq ???) so it can be a sequencer easily

> -- more program memory
> -- ADC and DAC optimized for handling pitch CVs (sufficient resolution,
> etc.)
> 
> What's right about it?
> -- direct-coupled analog ins and outs
> -- versatile!
> -- fairly easy to program
> -- reasonable cost (they were $300)

Its available as a PCB only, or PCB plus processor KIT...

> 
> What features would be nice?
> -- ability for module to write data to flash memory

At least some data likt midi channels etc.

> -- additional inputs and outputs
> -- pluggable memory cards like Compact Flash or SD or something (the
> cheapest ;-)

I could see that becomming an obsolescence issue, consumer data
standards
change so fast.  Maybe serial port connection to PC ???

> -- expandable RAM
> -- faster processing is never a bad thing
> 
> Any suggestions for a core? Is the BasicATOM chip still the best way to go
> for something like this?

Probably any PIC or AVR would work OK for CV type stuff.

H^) harry