(30/37)
'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
'C'-'3'-'1'-'6' (41h, 33h, 31h, 36h): Serial No. reply command
Data(0)-Data(1)----Data(n):Serial Number
The data must be ASCII characters strings.
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
12.2 Model Name Read
This command is used in order to read the Model Name.
1) The controller requests the monitor to read Model Name.
Header
Message
Check code
Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'6'
STX-'C'-'2'-'1'-'7'-ETX
BCC
CR
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'-'6'(30h, 36h): Message length.
Message
STX (02h): Start of Message
'C'-'2'-'1'-'7' (43h, 32h,
31h,
37h): Model Name command
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
Message
Check code
Delimiter
SOH-'0'-'0'-'A'-'B'-N-N
STX-'C'-'3'-'1'-'7'-Data(0) -Data(1)
—
---
-Data(n)-ETX
BCC
CR
Header
SOH (01h): Start Of Header
'0' (30h): Reserved
'0' (30h): Message receiver 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
'C'-'3'-'1'-'7' (43h, 33h, 31h, 37h): Model Name reply Command
