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48
Preparations
1
1 Preparations
z Ack
"Screen Mode": A code that sets the product status.
z Nak
"ERR" : A code showing what error has occurred.
Screen size control
z Function
The screen size of a product can be changed using a PC.
z Viewing the screen size (Get Screen Size Status)
z Ack
"Screen Size": Product screen size (range: 0 – 255, unit: inch)
z Nak
"ERR" : A code showing what error has occurred.
Header Comma
nd
ID
Data length Ack/Nak r-CMD Val1
Checksu
m
0xAA 0xFF 3 ‘A’ 0x18
"Screen
Mode"
Header Comma
nd
ID
Data length Ack/Nak r-CMD Val1
Checksu
m
0xAA 0xFF 3 ‘N’ 0x18 "ERR"
Header Command
ID
Data length
Checksum
0xAA 0x19 0
Header Comma
nd
ID
Data length Ack/Nak r-CMD Val1
Checksu
m
0xAA 0xFF 3 ‘A’ 0x19
"Screen
Size"
Header Comma
nd
ID
Data length Ack/Nak r-CMD Val1
Checksu
m
0xAA 0xFF 3 ‘N’ 0x19 "ERR"