15
Serial/Ethernet/USB Communication (SCOM) Interface
IND100084-18
"BRI" - Minimum Backlight Brightness
The command is used to set the minimum brightness of backlight. It defines the lower bound of the visual brightness
range. For example, if we set BRI to 10%, the minimum achievable brightness is 10% in PWM step curve.
Byte #
0
1
2
3
4
5
6
7
8
0x07 0xFF 0x42 0x52 0x49 0x01 IHCHK Min Brightness IDCHK
Minimum Brightness:
A value describing the minimum backlight brightness.
Range: [0x00-0xFF]
0x00: is off.
0xFF: is max brightness.
After unit reset the value is set to: last stored value.
After microcontroller reset the value is set to: last stored value. (0xFF if no stored value).
Write:
Sets the minimum backlight brightness. The brightness value shall be sent as 1 byte in the DATA field.
Example:
Set 60% BRI:
0x07
0xFF
0x42
0x52
0x49
0x01
0x1B
0x99
0x66
ACK reply from unit:
0x06
0xFF
0x42
0x52
0x49
0x01
0x1C
0x99
0x66
Read:
Read the minimum backlight brightness. The length of data shall be zero.
Example:
Get BRI:
0x07
0xFF
0x42
0x52
0x49
0x00
0x1C
ACK reply from unit:
0x06
0xFF
0x42
0x52
0x49
0x01
0x1C
0x99
0x66
