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Serial/Ethernet/USB Communication (SCOM) Interface
IND100084-18
"POT" - Backlight Control Interface selection
This command is used to select which HW control method will be used in user backlight control (BRU).
The available control methods: SCOM command, GDC keypad and analog potentiometer.
Byte #
0
1
2
3
4
5
6
7
8
0x07 0xFF 0x50 0x4F 0x54 0x01 IHCHK DATA IDCHK
DATA:
The data field length is only 1.
Range: Valid levels in table:
0x00
Backlight Controlled by SCOM only (Brightness Button on GDC is disabled.).
0xFF
Backlight controlled by SCOM and GDC keypad.
0x0F
Backlight Controlled by POT meter only.
0xF0
Backlight controlled by SCOM, GDC keypad and POT meter.
Write Example:
Write POT configuration:
0x07
0xFF
0x50
0x4F
0x54
0x01
0x05
0x00
0xFF
Reply from unit:
0x06
0xFF
0x50
0x4F
0x54
0x01
0x06
0x00
0xFF
Read Example:
Read POT configuration:
0x07
0xFF
0x50
0x4F
0x54
0x00
0x06
Reply from unit:
0x06
0xFF
0x50
0x4F
0x54
0x01
0x06
0x00
0xFF
Note: If POT is set 0x0F, any BRU write will return NACK.
