JLCooper MCS3 MIDI User Manual

Page 10

Sysex Messages
Sysex MIDI message are in the form: F0h 15h 10h nn vv F7h
where nn= 00h for switches, =01 for Jog Wheel, and =02 for
Shuttle Ring.

vv is either the button number/status, jog wheel count, or
shuttle position, as appropriate.

Jog count is in form of 2's Complement with bit 6 as sign bit
and bit 7=0. The number sent represents the number of wheel
counts accumulated since the last transmission (Relative
position count) much like the operation of a mouse.

The resolution is approximately 200 counts per revolution, and
transmissions are sent at approximately 10 msec intervals while
the wheel is turned.

For the shuttle ring, vv is an absolute 2's complimentary
position indication sent whenever there is a change to the
position. The range is about

12.

For switches, vv is a combination of switch number and
pressed/released status. Bit 6 = 1 for depressions and = 0 for
releases. Following is the low 5 bit values for the switches:

Rewind

07h

V-Stick Down 08h

Fast Forward 06h

V-Stick Up

09h

Stop

05h

V-Stick Left

0Ah

Play

04h

V-Stick Right 0Bh

Record

00h

12h

0Eh

13h

0Dh

14h

0Ch

15h

11h

16h

0Fh

17h

10h

18h