[sdiy] programmable synth module

[Eric Brombaugh]

Thanks for the example code - that's fairly readable.

Looks like the 40-pin version is now available:

http://www.basicmicro.com/Product.aspx?productID=74&CategoryID=1

With the additional I/O, one could evolve PSIM into something with 
better UI, (LCDS, more user buttons, LEDs), faster DACs and there would 
probably be enough differentiation to stave off legal bluster from the 
previous design 'owner'. Plus the benefit of the existing code base.

How hard would that be?

Eric

PS - you may notice that I'm fairly agnostic about the implementations: 
Linux, Forth, Basic, PIC, ARM, MIPS, whatever - it's all fun to think 
about. The goal is to hone in on something that enough folk can get 
excited about that we can get a critical mass.

Grant Richter wrote:
> Basic Micro was supposed to bring out the 40 pin version, which why 
> the 40 pin footprint is on the PCB.
>
> They did at least being out the 28 pin version which has 4 more pins.
>
> Using the I2C lines, existing DAC lines and the 4 extra pins you could 
> get byte wide data transfers
> to up to 256 outputs.
>
> I'm attaching Mike Murphy's public domain 3D sequencer program that 
> does envelopes and pitch control.