Drawmer DS301 운영자 매뉴얼 - 페이지 16

{카테고리_이름} Drawmer DS301에 대한 운영자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Drawmer DS301 20 페이지. Dual midi expander gate

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MIDI SYSTEM EXCLUSIVE

System exclusive instructions can be sent to the DS301 in order to remotely

programme or interrogate the user definable MIDI parameters from either a

sequencer or MIDI controller. It must be pointed out that if nonsensical data is

sent to DS301 via MIDI system exclusive messages, then garbage results will

occur. Only attempt this method of programming if you are fully conversant with

MIDI. For this reason we have insisted on including the checksum data byte,

which requires some mathematical calculation. The MIDI messages are listed in

the following tables.

MIDI Data To Programme Parameters.

DESCRIPTION

System

Exclusive

Manufacturers ID

Device Number

Format Number

Byte Count

Data 1

Data 2

Data 3

Data 4

Data Block

Checksum

(* = included in checksum)

End Of Exclusive

DATA

HEX

BYTE

11110000

0F0h

00110010

032h

00111111

03Fh

00111111

03Fh

00000100

04h

0000xxxx

0xh

0xxxxxxx

0xxh

0xxxxxxx

0xxh

0xxxxxxx

0xxh

0xxxxxxx

0xxh

11110111

0F7h

-14-

EXPLANATION

System Exclusive Status Byte

ID = "Drawmer Electronics"

Audio Channel 1 of DS301 = 03Fh

Audio Channel 2 of DS301 = 040h

Reserved Format Number implies

Programme Data follows

Number of Data Bytes that follow,

(Always 4 until future updates)

Ranges from 0 to 0Fh, MIDI Channel

for DS301 Audio Channel. (Actual

required MIDI Channel -1)

Ranges from 0 to 07Fh, Send Note

when DS301 envelope is triggered.

(See comments below.)

Ranges from 0 to 07Fh, Lowest Note

that DS301 will trigger from.

Ranges from 0 to 07Fh, Highest Note

that DS301 will trigger from.

Checksum is calculated by:-

Adding negated 8 bit data values and

ignoring the overflow bits. Only the 7

lowest significant bits must be sent!

Temporary Memory Parameters are

updated after this byte. They will

need permanently storing if required.