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74
MIDI Implementation
●Program Change
Status 2nd byte
CnH ppH
n = MIDI channel number : 0H - FH (ch.1 - ch.16)
pp = program number : 00H - 3FH (prog.1 - prog.64) (Preset)
00H - 07H (prog.1 - prog.8) (Other Tones)
* Not received when MIDI PROGRAM CHANGE SWITCH is OFF (p. 53) (factory setting:
ON).
■System Realtime Message
●Active sensing
Status
FEH
* This will be transmitted constantly at intervals of approximately 250 ms.
■System Exclusive Messages
“Identity Reply” and “Data Set 1 (DT1)” are the only System Exclusive messages
transmitted by VK-8.
When an appropriate “Identity Request Message” and “Data Request 1 (RQ1)” message are
received, the requested internal data will be transmitted.
●Identity Reply
Status Data byte
F0H 7EH, dev, 06H, 02H, 41H, 4DH, 01H, 00H, 00H, 00H, 01H, 00H, 02H
Status
F7H
Byte
Explanation
FOH Exclusive status
7EH ID number (universal non-realtime message)
dev Device ID (use the same as the device ID of Roland)
06H Sub ID#1 (General Information)
02H Sub ID#2 (Identity Reply)
41H ID number (Roland)
4DH Device family code (LSB)
01H Device family code (MSB)
00H Device family number code (LSB)
00H Device family number code (MSB)
00H Software revision level
01H Software revision level
00H Software revision level
00H Software revision level
F7H EOX (End of Exclusive)
* Reply the message by the unique device ID (dev) when the device has received the
“Identity Request Message” in the Broadcast.
●Data Set1 DT1
Status data byte
F0H 41H, dev, 00H, 4DH, 12H, aaH, bbH, ccH, ddH, eeH... eeH, sum
Status
F7H
Byte
Remarks
F0H Exclusive status
41H ID number (Roland)
dev device ID (dev: 10H fixed)
00H model ID
4DH model ID (VK-8)
12H command ID (DT1)
aaH address MSB
bbH address
ccH address
ddH address LSB
eeH data: The actual data to be transmitted. Multi-byte data is transmitted
in the address order.
::
ffH data
sum checksum
F7H EOX (End Of Exclusive)
* For the address, size, and checksum, refer to “Examples of System Exclusive Messages
and Calculating the Checksum” (p. 76).
* Large amounts of data must be divided into packets of 128 bytes or less, and transmitted
at intervals of approximately 40 ms.
* Regarding the checksum, please refer to page 76.
3. Parameter address map (MODEL ID = 00
4DH)
Transmission of “#” marked address is divided to some packets. For example, ABH in
hexadecimal notation will be divied to 0AH and 0BH, and is sent/received in this order.
+—————————————————————————————————————————————————————————————————+
| Start | |
| Address | Description |
|—————————————+———————————————————————————————————————————————————|
| 00 00 00 00 | System |
|—————————————+———————————————————————————————————————————————————|
| 10 00 00 00 | Temporary Preset |
| : | |
|—————————————+———————————————————————————————————————————————————|
| 20 00 00 00 | User Preset (01) |
| 20 01 00 00 | User Preset (02) |
| : | |
| 20 3F 00 00 | User Preset (64) |
+—————————————————————————————————————————————————————————————————+
• System
+—————————————————————————————————————————————————————————————————+
| Offset | |
| Address | Description |
|—————————————+———————————————————————————————————————————————————|
| 00 00 00 | System Common |
| 00 01 00 | System MIDI |
| 00 02 00 | System Organ |
| 00 03 00 | System FX |
+—————————————————————————————————————————————————————————————————+
• Preset
+—————————————————————————————————————————————————————————————————+
| Offset | |
| Address | Description |
|—————————————+———————————————————————————————————————————————————|
| 00 00 00 | Preset Common |
| 00 10 00 | Preset Organ |
| 00 20 00 | Preset FX |
+—————————————————————————————————————————————————————————————————+
• System Common
+—————————————————————————————————————————————————————————————————+
| Offset | |
| Address | Description |
|—————————————+———————————————————————————————————————————————————|
|# 00 00 | 0000 aaaa | |
| | 0000 bbbb | |
| | 0000 cccc | |
| | 0000 dddd | Master Tune (24 — 2024) |
| | | —100.0 — 100.0 [cent] |
| 00 04 | 0000 aaaa | Key Transpose (58 — 69) |
| | | —6 — +5 |
| 00 05 | 0000 aaaa | Foot Control Assign (0 — 10) |
| | | ROTARY SLOW/FAST, ROTARY SPEED, |
| | | ROTARY BRAKE ON/OFF, OTHER TONES |
| | | GLIDE, PRESET UP, OVERDRIVE, |
| | | OTHER TONES EXPRESSION, D BEAM SYNC, |
| | | CRESCENDO, RING MODULATION, |
| | | TONE WHEEL BRAKE, SPRING SHOCK |
| 00 06 | 0000 000a | Foot Control Polarity (0 — 1) |
| | | STANDARD, REVERSE |
| 00 07 | 0000 000a | Hold Pedal Polarity (0 — 1) |
| | | STANDARD, REVERSE |
|—————————————+———————————————————————————————————————————————————|
| 00 00 00 08 | Total Size |
+—————————————————————————————————————————————————————————————————+
• System MIDI
+—————————————————————————————————————————————————————————————————+
| Offset | |
| Address | Description |
|—————————————+———————————————————————————————————————————————————|
| 00 00 | 0000 aaaa | Control Channel (0 — 15) |
| | | 1 — 16 |
| 00 01 | 0000 aaaa | Upper Channel (0 — 15) |
| | | 1 — 16 |
| 00 02 | 0000 aaaa | Lower Channel (0 — 15) |
| | | 1 — 16 |
| 00 03 | 0000 aaaa | Pedal Channel (0 — 15) |
| | | 1 — 16 |
| 00 04 | 0000 aaaa | Other Tones Channel (0 — 15) |
| | | 1 — 16 |
| 00 05 | 0000 aaaa | Drums Channel (0 — 15) |
| | | 1 — 16 |
| 00 06 | 0000 aaaa | Spring Shock Channel (0 — 15) |
| | | 1 — 16 |
|—————————————+———————————————————————————————————————————————————|
| 00 07 | 0000 000a | Sound Controlers Switch (0 — 1) |
| | | OFF, ON |
| 00 08 | 0000 000a | General Controlers Switch (0 — 1) |
| | | OFF, ON |
| 00 09 | 0000 000a | Program Change Switch (0 — 1) |
| | | OFF, ON |
|—————————————+———————————————————————————————————————————————————|
| 00 00 00 0A | Total Size |
+—————————————————————————————————————————————————————————————————+