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7.2 Power control
1) The controller requests the monitor to control monitor power.
Header
SOH (01h): Start Of Header
'0' (30h): Reserved
'A' (41h): Monitor ID
LCD3215/LCD4215 must be ASCII 'A' (41h).
'0' (30h): Message sender is the controller
'A' (41h): Message type is "Command"
'0'-'C (30h, 43h): Message length is 12 bytes
Message
STX (02h): Start of Message
'C'-'2
’
,'0'-'3'-'D'-'6' (43h, 32h, 30h, 33h, 44h, 36h): power control command
'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Power mode
0001: ON
0002, 0003: Do not set.
0004: OFF (same as the power off by IR)
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5
“
Check code
”
for a BCC calculation.
Delimiter
CR (0Dh): End of packet.
2) The monitor replies a data for confirmation.
Header
SOH (01h): Start Of Header
'0' (30h): Reserved
'0' (30h): Message sender is the controller
'A' (41h): Monitor ID
LCD3215/LCD4215 must be ASCII 'A' (41h).
'B' (42h): Message type is "Command reply"
'N'-'N': Message length.
Note.) The maximum data length that can be written to the monitor at a time is 32bytes.
Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).
Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Result code. No error
'C'-'2
’
,'0'-'3'-'D'-'6' (43h, 32h, 30h, 33h, 44h, 36h): power control reply command
The monitor replies same as power control command to the controller.
'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Power mode
0001: ON
0002, 0003: Do not set.
0004: OFF (same as the power off by IR)
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5
“
Check code
”
for a BCC calculation.
Delimiter
CR (0Dh): End of packet.
Header
Message
Check code
Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'C'
STX-'C'-'2'-'0'-'3'-'D'-'6'-
'0'-'0'-'0'-'1'-ETX
BCC
CR
Header
Message
Check code
Delimiter
SOH-'0'-'0'-'A'-'B'-'0'-'C'
STX-'0'-'0'-'C'-'2'-'0'-'3'-'D'-'6'-
'0'-'0'-'0'-'1'-ETX
BCC
CR
