Communication Protocol - LG HECTO Owner's Manual

90 Serial Communication Function
Communication Parameter Setup
Baud Rate: 9600 bps(UART)
Data Length: 8 bit
Parity: none
Stop bit: 1 bit
Flow Control: none
Communication code: ASCII code
Communication
Protocol
1. Transmission
[Command1] [Command2] [ ] [Set ID] [ ]
[Data] [Cr]
[Command1]: The first command to control the
Laser TV (k. j, x, m, n, ASCII code, 1
Character)
[Command2]: The second command to control the
Laser TV (ASCII code, 1 character)
[Set ID]: You can adjust the set ID to choose
desired monitor ID number in option
menu. Adjustment range is 1 to 99. When
selecting Set ID '0', every connected set is
controlled. Set ID is indicated as decimal (1
to 99) on menu and as Hexa decimal (0x0
to 0x63) on transmission/receiving protocol.
[Data]: To transmit command data (hexadecimal).
Transmit 'FF' data to read status of
command.
[Cr]: Carriage Return
It corresponds to ASCII code '0x0D'.
[ ] : ASCII code 'space (0x20)
Data Structure
10 16
10 16 10
0 00
1 01 11 0B 21
2 02 12 0C 22
3 03 13 0D 23
4 04 14 0E 24
5 05 15 0F 25
6 06 16 10 26
7 07 17 11 27
8 08 18 12 28
9 09 19 13 29
10 0A 20 14 30
16 10 16 10 16
15 31 1F 41 29
16 32 20 42 2A
17 33 21 43 2B
18 34 22 44 2C
19 35 23 45 2D
1A 36 24 46 2E
1B 37 25 47 2F
1C 38 26 48 30
1D 39 27 49 31
1E 40 28 50 32
2. OK Acknowledgement
[Command2] [ ] [Set ID] [ ] [OK] [Data] [x]
* The set transmits ACK (acknowledgement) based
on this format when receiving normal data. At this
time, if the data is data read mode, it indicates
present status data. If the data is data write mode, it
returns the data of the PC computer.
3. Error Acknowledgement
[Command2] [ ] [Set ID] [ ] [NG] [Data] [x]
If a set receives an abnormal piece of data
such as a non-supported function or there is a
communication error, it returns ACK in the above
format.
Data [00]: illegal code
(This command is not supported.)
10 16 10 16 10
51 33 61 3D 71
52 34 62 3E 72
53 35 63 3F 73
54 36 64 40 74
55 37 65 41 75
56 38 66 42 76
57 39 67 43 77
58 3A 68 44 78
59 3B 69 45 79
60 3C 70 46 80
16 10 16 10 16
47 81 51 91 5B
48 82 52 92 5C
49 83 53 93 5D
4A 84 54 94 5E
4B 85 55 95 5F
4C 86 56 96 60
4D 87 57 97 61
4E 88 58 98 62
4F 89 59 99 63
50 90 5A 100 64