Beijer-electronics SCOM Protocol EN Manuale Utente Scaricare il pdf (Pagina 29)

Command Reference

Beijer Electronics, MAEN975 29

6.7 MCC_CONTRAST (0x82)

Contrast

Adjusts or queries the contrast value of the video controller.

Supported since Firmware Version

MT230 Nautic Monitor: 1.0

Command Stream

0 1 2 3 4 5 6 7...7+[LEN]-1 7+[LEN]

0x07 ADR

0x4D 0x43 0x43 LEN ICHKH 0x82 Ext Ret ICHKD

Ext:

Value: “A” or “a” (0x41 or 0x61)

Type: ASCII character

Length: 1

Description: Command extension.

This character must be always sent as part of the sub-

command.

Param: ABSOLUTE

Value: “00”: low … “FF”: high

Type: Two-digit ASCII-encoded hexadecimal number

Length: 2

Description: New contrast value

Param: INC

Value: “+” (0x2B)

Type: ASCII character

Length: 1

Description: Increment the current contrast value

Param: DEC

Value: “-” (0x2D)

Type: ASCII character

Length: 1

Description: Decrement the current contrast value

Param: RESET

Value: “R” or “r” (0x52 or 0x72)

Type: ASCII character

Length: 1

Description: Reset the contrast to an internally predefined value

Param: QUERY

Value: “?” (0x3F)

Type: ASCII character

Length: 1

Description: Query the current contrast value

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 130 131

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