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MIDI Implementation
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, 00H
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. 6).
* 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 6.
4
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 |
|—————————————+———————————————————————————————————————————————————|
| 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 |
|—————————————+———————————————————————————————————————————————————|
|
00 00 00 | System Common
|
00 01 00 | System MIDI
|
00 02 00 | System Organ
|
00 03 00 | System FX
+—————————————————————————————————————————————————————————————————+
• Preset
+—————————————————————————————————————————————————————————————————+
| Offset
|
|
Address |
|—————————————+———————————————————————————————————————————————————|
|
00 00 00 | Preset Common
|
00 10 00 | Preset Organ
|
00 20 00 | Preset FX
+—————————————————————————————————————————————————————————————————+
• System Common
+—————————————————————————————————————————————————————————————————+
| Offset
|
|
Address |
|—————————————+———————————————————————————————————————————————————|
|#
00 00 | 0000 aaaa |
|
| 0000 bbbb |
|
| 0000 cccc |
|
| 0000 dddd | Master Tune
|
|
|
|
00 04 | 0000 aaaa | Key Transpose
|
|
|
|
00 05 | 0000 aaaa | Foot Control Assign
|
|
|
|
|
|
|
|
|
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|
|
00 06 | 0000 000a | Foot Control Polarity
|
|
|
|
00 07 | 0000 000a | Hold Pedal Polarity
|
|
|
|—————————————+———————————————————————————————————————————————————|
| 00 00 00 08 | Total Size
+—————————————————————————————————————————————————————————————————+
• System MIDI
+—————————————————————————————————————————————————————————————————+
| Offset
|
|
Address |
|—————————————+———————————————————————————————————————————————————|
|
00 00 | 0000 aaaa | Control Channel
|
|
|
|
00 01 | 0000 aaaa | Upper Channel
|
|
|
|
00 02 | 0000 aaaa | Lower Channel
|
|
|
|
00 03 | 0000 aaaa | Pedal Channel
|
|
|
|
00 04 | 0000 aaaa | Other Tones Channel
|
|
|
|
00 05 | 0000 aaaa | Drums Channel
|
|
|
|
00 06 | 0000 aaaa | Spring Shock Channel
|
|
|
|—————————————+———————————————————————————————————————————————————|
|
00 07 | 0000 000a | Sound Controlers Switch
|
|
|
|
00 08 | 0000 000a | General Controlers Switch
|
|
|
|
00 09 | 0000 000a | Program Change Switch
|
|
|
|—————————————+———————————————————————————————————————————————————|
| 00 00 00 0A | Total Size
+—————————————————————————————————————————————————————————————————+
Description
Description
Description
Description
(24 — 2024) |
—100.0 — 100.0 [cent]
(58 — 69) |
—6 — +5
(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
STANDARD, REVERSE
STANDARD, REVERSE
Description
(0 — 15) |
(0 — 15) |
(0 — 15) |
(0 — 15) |
(0 — 15) |
(0 — 15) |
(0 — 15) |
OFF, ON
OFF, ON
OFF, ON
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|
(0 — 1) |
|
(0 — 1) |
|
|
|
|
1 — 16
|
1 — 16
|
1 — 16
|
1 — 16
|
1 — 16
|
1 — 16
|
1 — 16
|
(0 — 1) |
|
(0 — 1) |
|
(0 — 1) |
|
|
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