Simplicity Series 1 Manuel d'utilisateur Page 15

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5. MESSAGES - VIDEO
5.1 Video Parameters
The following commands are used to get/set video parameters as it is defined below.
5.1.1 Message-Get
Bytes Bytes Description Bits Description
DATA[0]
0x33 = Video Parameters
Get
Command requests the display to report its
current video parameters.
Example: (Display address 01)
Header
Monitor ID
Category
Code0
Code1
Length
Data Control
Data[0]
Checksum
0xA6 0x01 0x00 0x00 0x00 0x03 0x01 0x33 0x96
5.1.2 Message-Report
Bytes Bytes Description Bits Description
DATA[0] 0x33 = Video Parameters –
Report
Command reports to the host controller the current
video parameters of the display.
DATA[1]
Brightness.
0 to 100
of the user selectable range of the display.
DATA[2] Color. 0 to 100 of the user selectable range of the display.
DATA[3] Contrast. 0 to 100 of the user selectable range of the display.
DATA[4] Sharpness. 0 to 20(0x0 ~ 0x14) of the user selectable range of
the display.
DATA[5]
Tint (Hue)
-
0 to
50
(0x0 ~ 0x64)
of the user selectable range
of the display.
Example: All video parameters are set to 0x64 (100 %) (Display address 01)
Header
Monitor
ID
Category
Page
Length
Control
Data[0]
Data[1]
Data[2]
Data[3]
Data[4]
Data[5]
Checksum
0x21 0x01 0x00 0x00 0x08 0x01 0x33 0x64 0x64 0x64 0x14 0x64 0x0E
5.1.3 Message-Set
Bytes
Bytes Description
Bits
Description
DATA[0] 0x32 = Video Parameters –
Set
Command to change the current video parameters
DATA[1] Brightness. 0 to 100 of the user selectable range of the display.
DATA[2] Colour. 0 to 100 of the user selectable range of the display.
DATA[3] Contrast. 0 to 100 of the user selectable range of the display.
DATA[4]
Sharpness.
0 to
20
(0x0 ~ 0x14)
of the user selectable range of
the display.
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