Yamaha CS80

Hi,

I have seen a system like that but forgot the name of the person that
still has one (obviously not a member of this list or I expect they
might have chimed in by now). 

In my earlier post:  
http://launch.groups.yahoo.com/group/yamahacs80/message/2178

I mentioned a note about adding patch memory. The basic notion with
any system like this is to use a reference voltage, sample the
potentiometer using an ADC and then store that as digital info in
memory. To recall a patch, you apply that to the DAC that controls
(and intercepts) the voltage levels of the "analog" patch memories. 
The brute force way is to have a single DAC for each mini slide and
only *one* ADC to sample the sliders (treating them as a limited sort
of keyboard).  You will need to use an embedded microcontroller to run
all of this, something like:

http://www.pmb.co.nz/cpu_1a1.htm

This uses a Basic language interpreter (instead of writing assembler)
and is plenty fast for this project.  The costly part is wire-wrapping
the DAC boards and building the ADC scanner for the pots.

Cheers!

--- In yamahacs80@yahoogroups.com, Tommy Priakos <tpriakos@...> wrote:
>
> Thanks, David, for supplying the answer to how the Microsyne
interfaced...it makes you lose your appetite to see all those guts
sprawled out like that.  I remember the post, now, but never
associated the two (microsyne and synthedata).  Through searching on
the web I found that Synthedata dissolved as a company on the 23rd of
December 2002. It was on a site listing several other Canadian
companies that had bit the dust.
>  
> Tommy
> 
> 
> --- On Sat, 1/10/09, David Rogoff <david@...> wrote:
> 
> From: David Rogoff <david@...>
> Subject: [yamahacs80] Re: Microsine
> To: yamahacs80@yahoogroups.com
> Date: Saturday, January 10, 2009, 1:13 PM
> 
> 
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> --- In yamahacs80@yahoogro ups.com, "slipperysoles" <slipperysoles@ ...>
> wrote:
> >
> > While we are discussing patch memory:
> > 
> > In the files section (under Tuning and Troubleshooting) I uploaded an
> > old add for the Microsine System. (microsinesystem_ 72.jpg)
> > 
> > Apparently it was designed to enhance patch memory. I have not been
> > able to find any information on this system on the web. Particularly I
> > am interested just how the system interfaced with the CS.
> > 
> 
> Just recently, one of our members posted about this:
> http://launch. groups.yahoo. com/group/ yamahacs80/ message/1874
> Apparently, he has a CS80 that used to have this installed, basically
> tearing up much of the CS80's guts :(
> 
> David
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