Roland PCR-1 User Manual download pdf (Page 79)

Use MIDI functionality

■

Sys Ex. ASSIGN items

•

Specifying the checksum

(p. 79)

•

Specifying the location of the data

(p. 80)

•

Inputting channel/block data

(p. 81)

Specifying the checksum

The PCR-1 can automatically calculate the checksum of a system exclusive message and embed

it in the message. In order to use this function, you must use the following procedure to specify

the starting location from which the checksum is calculated, and the location at which the

checksum is inserted. You can also select the type of checksum.

For an actual example, please read the Sys Ex.ASSIGN section

Bend Pitch Control

(p. 84).

fig.css

Press the

[CHECKSUM]

key before you input the byte at which checksum

calculation should begin.

The display will indicate “CSS” (Checksum Start).

If you press the

[CHECKSUM]

key once again, “CSS” (Checksum Start) will be cancelled.

Press the

[ENTER]

button.

Continue inputting data.

fig.cs1

Press the

[CHECKSUM]

key at the location where the checksum should be

inserted.

The display will indicate “CS1” (Checksum type 1).

Press the

[ENTER]

button.

Checksum types

There are two types of checksum, as follows.

fig.cs12

Switching the type

If you want to switch to

type 2

, press the

[2]

key after you press

[CHECKSUM]

in step 4.

To switch back to

type 1

, press the

[1]

key.

1 CHECKSUM TYPE 1

This is the method used by Roland and most

other manufacturers

2 CHECKSUM TYPE 2

Select this if the method other than type 1 is

used

[2]

[CHECKSUM]

[1]

[CHECKSUM]

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Roland PCR-1 User Manual Page 79

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