Status And Data Replies; Command List; Operation Mode; Matte Settings - Datavideo DVK-300HD Instruction Manual

Status and Data Replies

Sync Byte Byte Count
Item
Sync Byte
Bytes Count
Response Message
Checksum

10.2 Command List

Operation Mode

Select between Chroma key, Luma key, or Disable processing
Command Code
Parameter 1
Parameter 2
Return
Item
Command Error
Command Accepted 0xAA

Matte Settings

Matte settings
Command Code
Parameter 1
Response Message
Description
0xAA
The total number of subsequent bytes in the block (from command
byte to Checksum byte).
Command Error
Command Accepted
Data Message
(Sum of Response Message) & 0xFF
0x10
0x01 Set keying mode
0x02 Set background color
0x03 Background color tone detection
Keying mode
0x01 Chroma
0x02 Luma
0x03 Disable
Background color
0x01 Blue (chroma) / Black (luma)
0x02 Green (chroma) / White (luma)
Background color tone detection
0x00 Off – Default color
0x01 On – Detect real color tone
Sync Byte Byte Count
0xAA 0x02
0x02
0x11
0x01 Set matte Black
Checksum
0x40
0x80
Data
Response
Checksum In Response To
Message
0x40 0x40
0x80 0x80
33
Invalid Command
Valid Write
Command