Odp: [sdiy] Getting back to my Midi->CV converter...

[Roman]

one way to prevent designs from being stolen/copied is to
make them BIG ;)
I really enjoy viewing your schematics Jim.

as for DMA for multiple S&Hs, I made something remotely similar.
There's small RAM (6116) with counters, that writes the DAC
and controlls S&H's MUX. Whenever CV is to be changed,
processor writes to this RAM, so it only cares about changes,
leaving the hardwork for the hardware (as "hardw-" prefix
would suggest).

now, the truth is, the PCBs were only made and I didn't find
the time to solder them in 4 years :-P

Roman

----- Original Message ----- 
From: patchell <patchell at silcom.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Friday, October 11, 2002 6:46 AM
Subject: [sdiy] Getting back to my Midi->CV converter...


>     http://www.silcom.com/~patchell/miditocv/miditocv.html
> 
>     I noticed I originally posted that page about 4 years ago...my how
> time flies.
> 
>     The web page gives a very brief description of what I plan on doing,
> plus, I posted a schematic of the FPGA I just got to compile that is
> going to do the DMA services for updating the sample/holds...yep, I said
> DMA...just call me crazy Jim...it has been a while since I did a DMA
> (about 15 years), so I decided to so this to get my feet wet again
> before tackling the nasty one I am going to start at work.
> 
> --
>  -Jim
> ------------------------------------------------
> * Visit:http://www.silcom.com/~patchell/
> *-----------------------------------------------
> *I'm sure glad Merry Christmas comes just once a year
> * -Yogi Yorgensen
> ------------------------------------------------
> 
>