Transmit + Receive
| Byte # | Value HEX | Description | Notes |
| 1 | F0 | Sysex ID (Start) | |
| 2 | 06 | Lexicon ID | |
| 3 | 0bbb bbbb | Product ID | |
| 4 | 0bbb bbbb | Device ID | 0-127 |
| 5 | 12 | Message Class | Handshake Message Class |
| 6-7 | 0n | Handshake Command (1 byte) | |
| --- | 0n | Checksum | This is an optional "Checksum" field. The checksum is the low 7 bits of the sum of all preceeding bytes in the message following the "Message Class". |
| F7 | End of Sysex |
The following handshake commands have been defined:
| 0 | No Operation (just a dummy) |
| 1 | Are you There |
| 2 | I'm Alive |
| 3 | I'm Busy. Please wait |
| 4 | I'm ready (used after a wait) |
| 5 | Error. Re-send data. |
| 6 | Enable Small (8 bit) address mode |
| 7 | Enable Large (16 bit) address mode (default) |
| 8 | Transmit LUSP control tree |
| 9 | Transmit linked paramters |
| 10 | Don't transmit linked parameters |
| 11 | Turn ON all MIDI output |
| 12 | Turn OFF all MIDI output |
| 13 | Turn ON MIDI Terminal |
| 14 | Turn OFF MIDI Terminal |
| 15 | Turn ON "Auto Display" |
| 16 | Turn OFF "Auto Display" |
| 17 | Turn ON "Flash ROM Write Mode" (unlock step 1) |
| 18 | Turn ON "Flash ROM Write Mode" (unlock step 2) |
| 19 | Turn ON "Flash ROM Write Mode" (unlock step 3) |
| 20 | Turn OFF "Flash ROM Write Mode" |
The commands are defined as follows: (refer to
the MPX G2 "midi.h" for 'C' defs)
0 - NOP
This does nothing but may be used to notify a controlling system that
a new LUSP system has been connected.
1 - Are You There?
This is sent by a controlling system to a LUSP product to determine
if it is (still) connected. An "IM_ALIVE" is expected back.
2 - I'm Alive
This is transmitted by a LUSP system to notify the outside world that
it exists. It can be transmitted automatically or in response to "ARE_YOU_THERE".
3 - I'm Busy. Please Wait
This is sent by a system if it is not ready to receive any more data.
Typically this is used during dumps where the system is storing the data.
4 - Ready
This is sent by a system if it it "ready" to resume a dump for example.
5 - Error
This is returned by a system if bad data was detected. Sending system
should re-send the data.
6 - Enable Small (8 bit) address
mode
7 - Enable Large (16 bit) address
mode
These put the system into the small and large
address modes. In the default "Large" mode, the message fields for number
of control levels and the actual control address are 16 bit values (0 -
65535). In the "Small" mode, these fields are reduced to 8 bits (0 - 255)
making many of the common messages significantly smaller.
8 - Transmit the LUSP control
tree
When a LUSP system receives this message it will
transmit the ""Data Type" Type" message (including the normally optional
control level information) for each node in the system. The LUSP system
must watch for "BUSY" messages and wait for the subsequent "READY" message
if one arrives.
9 - Transmit Linked Parameters
This is sent by the conrolling system to the
LUSP product to place the LUSP system into a "Transmit Linked "Data Type"s"
mode. When this mode is turned on, the LUSP system will automatically transmit
""Data Type" Data" messages for all all "linked" "Data Type"s. "Linked"
"Data Type"s make individual changes but also force other "Data Type"s
to change their values. When the system receives a ""Data Type" Data" message
for a "Data Type" which is "linked" to others, ""Data Type" Data" messages
for the "other" "Data Type"s are transmitted back to the controller so
that it will have current values.
10 - Don't Transmit Linked Parameters
This shuts off the "Transmit Linked "Data Type"s" mode.
11 - Turn ON All MIDI Output
This instructs the connected LUSP system to enable
the output of all MIDI data. Internal modes and settings are updated accordingly.
12 - Turn OFF All MIDI Output
This instructs the connected LUSP system to disable
the output of all MIDI data. Internal modes and settings are updated accordingly.
13 - Turn ON the MIDI Terminal Mode
14 - Turn OFF the MIDI Terminal
Mode
These turn on and off the "MIDI Terminal" mode
(see MIDI Terminal Message (11 hex)).
15 - Turn ON the "Auto Display Mode"
When a LUSP system receives this message, a global
mode is set which generates a display dump message for the product whenever
the display (LEDs, LCD, etc..) change.
16 - Turn OFF the "Auto Display
Mode"
This turns off the auto display mode in the LUSP
system.
17 - Turn
ON the "Flash ROM Write Mode 1" (unlock step 1)
18 - Turn ON the "Flash ROM Write
Mode 2" (unlock step 2)
19 - Turn ON the "Flash ROM Write
Mode 3" (unlock step 3)
These turn on the flash ROM write mode in the
system. This shuts down normal operation of the system and prepares it
for a Flash Update proceedure.
20 - Turn OFF the "Flash ROM Write
Mode"
This turns off the flash ROM write mode then
reboots the connected system.
21 - Run Flash Command
This runs the current flash command specified
by the Command Field of the Flash
ROM code
header.
22 - Clear Checksum
This clears the running checksum used verify
valid Flash ROM data.
Example
This message can also be used to determine if a system is connected
by sending the HANDSHAKE_ARE_YOU_THERE message to the system as follows:
| --header--
F0 06 09 00 12 01 F7 |