[sdiy] Propeller chip from Parallax

[Tom Wiltshire]

On 15 Mar 2007, at 22:51, jbv wrote:
>
> jbv a *crit :
>
>>
>> it just crossed my mind : what about using this chip for some kind
>> of modular synth video project ?
>>
>> JB
>
> Well, didn't have much success with my suggestion...    ;-)
> Was it completely dumb, or did most of the innovative and
> off-the-beaten-track
> spirit of this list disapear for ever ?

No, we're just all too busy developing our radically innovative and 
spirited projects!


Myself, I thought the parallelism is the most interesting feature, much 
as with FPGAs. I wondered if you could get each cog providing a Yamaha 
FM operator, so that you had a 6 FM synth voice on a chip. That can't 
be that hard - you only need a simple sine wave DDS oscillator and an 
envelope in each cog.

In a similar vein, I wondered if you'd be able to get each cog 
producing an LFO or Envelope output, so that you had all the modulation 
sources that you might need for a voice on a single chip. Obviously in 
this case you're going to need to interface to a multiple output DAC, 
whereas the FM synth idea has the advantage of only needing a single 
output.

Just looking at it, eight 32-bit processors at 80MHz in a package like 
that makes me think that the main problem is going to be getting enough 
information into and out of the chip. Aside from that, it looks like a 
lot of fun.

Tom