Datavideo DVK-300HD Instruction Manual page 40

Hd/sd chromakey
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0x22
0x23
0x24
Return Command Error
Item
Sync Byte Byte Count
Command Error
0xAA
Return Password
Return
Sync Byte
0xAA
Byte Count
0x13
Byte 1
0x1C
Byte 2
0x01
Byte 3 – Byte 18
Password (padded with 0x00s to 16 bytes)
Checksum
(Byte 1 + ... + Byte 16) & 0xFF
Return MAC Address
Return
Sync Byte
0xAA
Byte Count
0x09
Byte 1
0x1C
Byte 2
0x02
Byte 3 – Byte 8
MAC address
Checksum
(Byte 1 + ... + Byte 8) & 0xFF
Return IP/Port/Mask
Return
Sync Byte
0xAA
Byte Count
0x0D
Byte 1
0x1C
Byte 2
0x03
Byte 3 – Byte 6
IP
Byte 7 – Byte 10
Port
Byte 11 – Byte 14
Mask
Checksum
(Byte 1 + ... + Byte 14) & 0xFF
Return Name/Default Name
Return
Sync Byte
0xAA
Byte Count
length of Name/Default name + 0x03 (maximum name length is 64)
Byte 1
0x1C
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Preset 2 name
Preset 3 name
Preset 4 name
Response
Message
0x02
0x40
39
Checksum In Response To
0x40
Invalid Command

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