new, interesting (?) projects...sorry for html posting.

[Matti E. Leino]

I have apologize that last time I sent html-formatted mail. The reason
for this was, I had just re-installed windows and communicator, and
haven't checked preferences for formatting. sorry.

I have finished my projects so far with alternative success. I have
build few analog monosynths, PG-101 and PG-201. 101 was much bigger
project, It took me bout one and a half year to finish it, but now it's
working and tuned.Yes! 201 was tiny bass synthsizer, little bit like
Tom's Mad Mouse, but heavily modified. Thanks Tom, to give me lot's of
good ideas. I haven't put any pics to my web-page, cause I don't have
much time currently...=( But when I finally get  digicamera, I'll put
some pics, and specs into web.

But what about the projects. I'm so addicted to building synth-stuff, I
can't helping to start new project. These two aren't analog anymore, but
still...
The first one is midi2cv-converter.Again. I have build up to four Trevor
page's midipic-converters, but midipic hasn't all those things I need.
I'm happily using it with my monosynths,but...
This midi2cv uses pic16f877 ( and 16f84 ), and here's the list of what I
have thinked to put on it:

 -midi2cv-converter. Of course. Operating modes are something like in
Paia's midi2cv8.
 -controlling the lights etc. This one I tought would be nice, when you
do gigs, you can control lights, or almost anything you want via midi.
It has TTL-outputs, and out's can be assigned to response to any
midimessage you want, notes, control changes, etc...
 -LCD and one wheel and two buttons. Wheel and buttons are used two
change operating modes, and TTL-uotputs. And LCD, of course, tells you
what you are doing...=)
 -RS232 interface. You can program pic's onboard.

So far I have drawn just preliminary schematics, and tested some parts
on breadboard, and the results looks promising. The concept is to use
16f877 as main processor, and it is connected to 16f84 with serial
interface. 16f84 is used only TTL-out's, and to do some debuggings.
16f877 does the rest.
Now, If you have ideas or comments, or anything, please tell me. There's
still some room for some new things.

The second project is kind of analog modelling synth. I'm thinking of
using old P133 ( or something like that ) PC, without anything else but
processor, ram's and one SB Live. The idea is to use Linux as operating
system. It can be burned into 1meg ROM, just kernel and maybe drivers
for Live. This ROM is used as boot-rom. Live's dsp, emu10k1 can be used
this way as synth. There's of course midi-interface, I tought something
like 16 pot's as realtime controls, and midi in and out to play it. And
again, LCD to tell you parameters, etc. First I was thinking of using
some Texas Instrument's DSP, but then I realized, that it would be much
easier, and maybe cheaper this way.

Ideas? Comments?


 -Matti


-- 
Matti E. Leino               email:mle at nic.fi
Mäntysalontie 2              http:www.nic.fi/~mle
28800 PORI                   gsm:+358407076540
Finland

         - lo que no mata, fortalesa -