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Folks waiting for their 650’s to arrive should review Paul’s video explanation, presented below in 4 parts:
http://www.youtube.com/watch?v=e6C5TTPbAbI
http://www.youtube.com/watch?v=gt3VMUon9lk
http://www.youtube.com/watch?v=Ubq4Em21cfw
http://www.youtube.com/watch?v=AlgJty6zf2Q
From: motm@yahoogroups.com [mailto:motm@yahoogroups.com] On Behalf Of Paul Schreiber
Sent: Sunday, October 02, 2011 7:51 PM
To: MOTM List
Subject: [motm] MOTM-650 info
Since I'm starting to ship out MOTM-650s, it's improtant to understand the issues with V1.3 FW and documentaion (or lack thereof):
a) I will send the info I have. There info is based on the Europa mod for the Jupiter 4:
and you will see references to "push this button...." but for the '650, it's a distinct menu item
b) there are 3 know "issues" with the firmware (and some minor ones)
1) you can't "flood" MIDI data to the '650, meaning blasting running status/16channels of 64 notes each/etc. Also, it ∗hates∗ the Kurzweil MidiBoard (why, I could never figure it out). Try to 'pre-filter' MIDI data if possible. It's not that difficult to do.
2) Even though there menu "says so", you ∗cannot∗ assign AUX outputs to CC messages unless they are the 'named' ones (like Breath Controller or Pitch Wheel). If you want to use the AUX outputs with your sequencing program, just pick a named CC and it will work fine. Just because it's NAMED Mod Wheel doesn't mean you have to use it as such. It's just a ∗name∗, not a ∗function∗ to the '650. You control where the patch cord goes :)
3) trying to drive the arpeggiators with external clock can be erratic. Some people claim no problem, other say it locks up. MIDI clock and internal clock work great. The dual arpeggiators are VERY WELL DONE in the code as are the complicated poly voicing allocation algorithms.
Don't forget (and this is not mentioned in the docs) there are 15 tuning tables pre-loaded for micotuning fun, and you can dump tuning tables to it.
The SW is not perfect, but it's a poor 8051 8-bit controller with 768 bytes of RAM running at 1MHz rate. It's doing the best it can :)
The basic MIDI-CV functions work perfectly and this ∗∗∗IS∗∗ the most accurate and stable MIDI-CV ever made (tru 16-bit accuracy, <5ppm drift).
I know someone had a really nice menu flowchart for the '650. If someone has that, please put it up and send me a copy. It was on my crashed HD :(
Paul S.