Hi, Mike,
Great news. How did you manage this? I always thought OS is in ROM or EPROM
and physical change of chip is necessary. Wasn't that the original idea of
your modification? Because before you wrote always about some additional PCB
with components, soldering jobs etc...
Anyway, I would be happy to test the new features in my EX800. What are your
conditions if anybody is interested to get that SysEx file?
Still some questions: after sending that new OS dump into the instrument,
will it stay in the memory and work reliably since that moment, even after
the switching off the machine? Will the normal SysEx dump work? Can't
normal SysEx dump somehow destroy the new OS code in the memory?
Later I will write you some other ideas to implement, for example a
possibility of microtuning the individual tones, minimally as an octave
tuning, in ideal case all notes independently, in accordance with MTS -
Microtuning Standard... This is a feature which would be highly appreciated
by many musicians using alternate tunings. If you manage this, I can promote
your mod in that circles being a member of Tuning lists and others... I'm
sure many of them will try to find the old Poly or EX and buy your improved
OS.
Thanks for your effort and answer.
Daniel Forro
> Yup, I finished it this evening.
>
> This means that the original EX800 code that I took as my starting
> point, now radically rewritten, has all of the original Poly 800
> functions including the joystick and keyboard functions. Also, we now
> have dual LFO's, local control for keyboard and joystick on off, MIDI
> TX channel setting for keyboard and joystick. Sync and cascade modes
> along with MIDI controllers for MG rate, resonance and filter cut off
> as well as controllers for Poly, Hold and Chord mode.
>
> And dare I forget the new portamento mono mode along with extended
> parameters, global parameters and sysex single patch send and receive.
>
> And new code (with new features) can be downloaded to your Poly or EX
> 800 via sysex.
>
> Anyone want one?
>
> Mike.