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7
Serial Protocol
Serial port status
The device can receive the serial port command sent by the external controller or OPS of the device. Refer to
the following table for the specific command protocol:
1. Baud rate: 115200 2. Control section: PC → The device 3. Response section: TV → PC
PC to
TV
Computer
TV to
PC
PC to
TV
Source
HDMI1
TV to
PC
PC to
TV
HDMI2
TV to
PC
PC to TV
Volume
Control
TV to PC
P C t o
TV
S c r e e n
on
T V t o
PC
Switch
on/off
P C t o
TV
S c r e e n
off
T V t o
PC
P C t o
TV
Y Y M M
DD
T V t o
PC
Set Time
(H/M/S)
P C t o
TV
H H M M
SS
T V t o
PC
PC to TV
Reboot
Screen
TV to PC
PC to TV
Software
Version
Query
TV to PC
• Verify is the exclusive OR of Length, Command code, ID and Data.
• All data are hexadecimal values.
• For all commands received by the device, the protocol header needs to be changed to AB AB and the pro-
tocol tail needs to be changed to CD CD when returning to the PC.
Protocol
Length
Command code
header
DD
FF
00
06
AB
AB
00
06
DD
FF
00
06
AB
AB
00
06
DD
FF
00
06
AB
AB
00
06
DD
FF
00
06
AB
AB
00
06
DD
FF
00
07
AB
AB
00
07
DD
FF
00
07
AB
AB
00
07
DD
FF
00
08
AB
AB
00
09
DD
FF
00
08
AB
AB
00
09
DD
FF
00
06
AB
AB
00
06
DD
FF
00
06
AB
AB
00
09
DATA
A1 06
00
00
02
A1 06
00
00
01
A1 06
00
00
00
A1 06
00
00
01
A1 06
00
00
01
A1 06
00
00
01
A1 09
00
00
VV
A1 09
00
00
01
C1 31
00
00
00 01
C1 31
00
00
01 00
C1 31
00
00
01 01
C1 31
00
00
01 01
C1 1C 00
00 YY MM DD
01 YY MM
C1 1C 00
00
DD
C1 1D 00
00 HH MM SS
01 YY MM
C1 1D 00
00
DD
C1 1E 00
00
01
C1 1E 00
00
01
C1 1B 00
00
01
01 YY MM
C1 1B 00
00
DD
19
Verify
Protocol tail
XX
BB
CC
XX
CD
CD
XX
BB
CC
XX
CD
CD
XX
BB
CC
XX
CD
CD
XX
BB
CC
XX
CD
CD
XX
BB
CC
XX
CD
CD
check digit
XX
BB
CC
XX
CD
CD
XX
BB
CC
XX
CD
CD
XX
BB
CC
XX
CD
CD
XX
BB
CC
XX
CD
CD
XX
BB
CC
XX
CD
CD
Remark
XX is the
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