Datavideo DVK-300HD, Instruction Manual, Page: 41 / 45

40
Byte 2
0x11 Name
0x12 Default name
Byte 3 – Byte n Name/Default name (string without tailing \0)
Checksum (Byte 1 + … + Byte n) & 0xFF
Return Version
Return
Sync Byte 0xAA
Byte Count 0x13
Byte 1 0x1C
Byte 2 0x13
Byte 3 – Byte 6 ARM version
Byte 7 – Byte 10 FPGA version
Byte 11 – Byte 14 NIOS version
Byte 15 – Byte 18 Hardware version
Checksum (Byte 1 + … + Byte 18) & 0xFF
Return Preset Name
Return
Sync Byte 0xAA
Byte Count length of Preset name + 0x03 (maximum preset name length is 32)
Byte 1 0x1C
Byte 2
0x21 Preset 1 name
0x22 Preset 2 name
0x23 Preset 3 name
0x24 Preset 4 name
Byte 3 – Byte n Preset name (string without tailing \0)
Checksum (Byte 1 + … + Byte n) & 0xFF
Get
Get parameter value command is modification of standard set command by adding Get flag
to Command Code and skip parameter value bytes.
Get
Command Code 0x80
[Parameter 1] 0x??
Parameter number according to standard set
command. Field is optional for commands with only
one parameter.
Return Command Error
Item Sync Byte Byte Count Response
Message
Checksum In Response To
Command Error 0xAA 0x02 0x40 0x40 Invalid Command