ComputerVoltageSources

Personally, I'd rather have the 8 I/O than Speakjet on board.  I can
hook my Speakjet to my PSIM if I really needed it...

Mike

--- In ComputerVoltageSources@yahoogroups.com, "Grant Richter"
<grichter@...> wrote:
>
> Hit "unwrap lines" above so this doesn't look jumbled.
> 
> OK, to clarify the difference between Basic Atom Pro 24M and 28M.
> 
> The pinouts are the same as far as power pins etc. So a socket can
accept either 24 or 28 
> version without needing jumpers. Just more I/O pins are added at
then end.
> 
> The 32K of EEPROM is 32K BITS, which is only 4096 BYTES. Still very
handy. See the "Read" 
> and "Write" commands in the software manual (quote from Nathan).
> 
> The additional 4 pins added on the bottom are 4 more A/D inputs, so
the device could 
> support 8 analog voltage inputs with no multiplexors. Whoo HA! One
option is to decicate 
> some of the 4 analog inputs to fixed functions like cursor control
or some kind of user 
> interface?
> 
> Like using a knob with 10 hardware detents to select 10 software
options?
> It might be possible to support some kind of performance interface
using a force sensing 
> resitor? The processor is there to od the math to extract the X,Y
and Z data.
> 
> That makes me want to put two sockets for quad DACs with a chip
select to give 8 voltage 
> outputs. 
> 
> This may come at the expense of some digital funtions. I may have to
sacrifice a pin for 
> chip select. Are we FOR SURE dedicated to having a Speakjet socket
on the main CVS PC 
> board? Or would we rather have 8 analog inputs and 8 analog outputs?
> 
> The Speakjet is cute, no doubt about it. A voice synthesizer is a
bunch of fun, even if the 
> highest frequency out is 8 KHz. I wish that new MOOG in a chip was
further along. I really 
> like the idea of having some kind of synth right on the PCB for the
circuit bending. build it 
> into a manakins head crowd, They make me smile.
> 
> ALSO:
> 
> He is hand building prototypes of the 40 pin version of the Basic
Atom Pro 40M now. This 
> is upgraded to a 20 Mhz clock (from 18) and uses the bigger 3687
part rather than current 
> 3664. He says at least 6 months to a years till it is available but
recommends using a 40 
> pin footprint for any new board. The Basic Micro (PIC based) 40m can
be bought now.
> 
> Slower, but maybe with a enough I/O pins to read a MIni-Wave Prom
for complex envelope 
> storage.
> 
> --- In ComputerVoltageSources@yahoogroups.com, "John Loffink"
<jloffink@> wrote:
> >
> > Hmmm, I missed that since it is only on the web page description.
 It would
> > be nice if they published the spec for the 28M device, since they are
> > selling it.  That needs to be considered for the CVS designs,
because you
> > need to know which pins are allocated for memory access.
> > 
> > John Loffink
> > The Microtonal Synthesis Web Site
> > http://www.microtonal-synthesis.com
> > The Wavemakers Synthesizer Web Site
> > http://www.wavemakers-synth.com
> > 
> >
>