Évaluations - 5, GPA: 4
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Facilité d'utilisation
The MMP-2 does not transmit the message. If the MMP-2 received the message and the device ID of the message is same as its device ID or 7FH, the MMP-2 transmits the following Identity Reply message. .Identity Reply Status Data Bytes Status F0H 7EH,Dev,06H,02H,41H,4EH,01H,00H,00H,ssH,ssH,ssH,ssH F7H Byte Description F0H Status of System Exclusive Message 7EH Universal System Exclusive Message Non Real-time Header Dev Device ID 06H General Information (sub ID #1) 02H Identify Request (sub ID #2) 41H Manufacturer ID (Roland) 4EH 01H Device Family Code (MMP-2) 00H 00H Device Family No. ssH ssH ssH ssH Software Revision Level F7H EOX (End of System Exclusive Message) Data Transfer (RQ1, DT1) .Data Request (RQ1) Status Data Bytes Status F0H 41H,Dev,00H,4EH,11H,aaH,bbH,ccH,ssH,ssH,ssH,Sum F7H Byte Description F0H Status of System Exclusive Message 41H Manufacturer ID (Roland) Dev Device ID 00H 4EH Model ID (MMP-2) 11H Command ID (RQ1) aaH Address MSB bbH Address MID ccH Address LSB ssH Size MSB ssH Size MID ssH Size LSB Sum Check Sum F7H EOX (End of System Exclusive Message) The message is used to request data to the MMP-2. The MMP-2 does not transmit this message. The MMP-2 transmits the requested data using Data Set(DT1) under following condition when it received the message. 1. The requested address correspond to the specified parameter base address of the MMP-2. 2. The requested size is over 1 byte. MIDI Implementation .Data Set (DT1) Status Data Bytes Status F0H 41H,Dev,00H,4EH,12H,aaH,bbH,ccH,ddH, ..., eeH,Sum F7H Byte Description F0H Status of System Exclusive Message 41H Manufacturer ID (Roland) Dev Device ID 00H 4EH Model ID (MMP-2) 12H Command ID (DT1) aaH Address MSB bbH Address MID ccH Address LSB ddH Data : : eeH Data Sum Check Sum F7H EOX (End of System Exclusive Message) .The message is received under the following condition. If the device ID on the message is same as that of the receive device, and the address on the message correspond to the specified parameter base address, the received data are stored from the specified parameter base address. If the interval of received messages is shorter than 25m sec., the MMP-2 can not work the receive message procedure correctly. .The message is transmitted under the following condition. When the MMP-2 transmit the data on the requested parameter after receiving the Data Request message(RQ1). See “Data Transfer Address Map” (p. 47) for more details of the transfer parameters. Data Transfer Address Map The each address value is expressed as a 7bit hex number. +————————————————————————————————————————————————————————————————————————+ | Address | MSB | | LSB | |—————————————————————+————————————————+————————————————+————————————————+ | Binary | 0aaa aaaa | 0bbb bbbb | 0ccc cccc | | 7—bit Hex | AA | BB | CC | +————————————————————————————————————————————————————————————————————————+ Parameter Address Block