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32 

 

10.

 

RS-232 Control Protocol   

10.1  Hardware Specifications 

Serial Port Specifications 

Item 

Description 

Data Rate 

38,400 Baud 

Character Length 

1 start bit + 8 data bits + 1 parity bit + 1 stop bit 

Parity 

Odd parity 

Connector 

9-Pin D-Sub 

 

Serial Data Word Descriptions 

 

Start bit always low 

Data 8 bit; LSB first 

Odd Parity 

Stop bit always high 

 

Command / Message Block Structure 

Sync Byte  Byte Count  Command 

Byte 

Parameter 1  Parameter 2 

…  Parameter N 

Checksum 

 

Item 

Description 

Sync Byte 

0xAA 

Byte Count 

The total number of subsequent bytes in the block (from 

command byte to Checksum byte). 

Valid byte count values range from 0x01 to 0xFF 

Command Code 

Command Code Byte 

Parameter 0 ~ 254 Byte  Parameters 

Checksum 

Checksum (C Parameter 1 + Parameter 2 

+ Parameter N) & 0xFF 

 

Example: 

Set ChromaKey mode 

0xAA 0x04 0x10 0x01 0x01 0x12 

0xAA: Sync Byte 

0x04: Byte Count 

0x10: Command Code = Operation Mode 

0x01: Parameter 1 = Set keying mode 

0x01: Parameter 2 = Chroma 

0x12: Checksum = (0x10 + 0x01 + 0x01) & 0xFF 

Summary of Contents for DVK-300HD

Page 1: ......

Page 2: ...______11 6 2 Static IP Address Assignment ________________________________________________11 6 3 Change the Device Name____________________________________________________12 6 4 Auto Setting Save Func...

Page 3: ...__________________________________________________________________ 36 Save Load Preset_______________________________________________________________________ 37 Input Configuration____________________...

Page 4: ...thing to rest on the power cord Do not locate this unit where the power cord will be walked on rolled over or otherwise stressed 9 If an extension cord must be used with this unit make sure that the t...

Page 5: ...Hard Drives are only covered for the first 10 000 hours or 1 year whichever comes first Any second year warranty claims must be made to your local Datavideo office or one of its authorized Distributo...

Page 6: ...the algorithm allows us to offer you a combination of a very good picture quality and an exceptional speed of operation 1 2 Setting Key Parameters It has never been so easy The setting of keying param...

Page 7: ...quality VGA resolution must be as close as possible to output resolution Camera Inputs foreground SDI and HDMI Video outputs SD HD and 3G Output will be of the same resolution as the camera input Main...

Page 8: ...settings RS 232 RS 232 for direct connection to the PC for remote access Please see the RS 232 Control Protocol section for details and firmware upgrade LAN 10 100Mbps Ethernet Network interface for...

Page 9: ...PUT HDMI SDI output ports MATTE OUT is for previewing black white level chroma key effect SDI output SDI output port is for program output DC IN DC IN socket connects the supplied 12V PSU to the devic...

Page 10: ...9 4 System Diagram...

Page 11: ...and use the utility software to operate device functions Step1 Click the utility installer icon to install the DVK 300HD software Step 2 Follow the setup wizard to install the DVK 300HD software step...

Page 12: ...tup the PC running the application should be configured to the same subnet as the router to which the DVK 300HD devices are connected 6 1 Dynamic IP Address Assignment After connecting the power and n...

Page 13: ...ht of the main window Select the Change button in the Device info Section setting the device name Set the device name and accept the setting via the Save button The window for changing the name of the...

Page 14: ...If the colour of the keyed out background is not uniform the user can make use of the Detect button which will calculate the background s RGB parameters using the automated average If the parameters...

Page 15: ...ult is to make the mask background colour as close to perfect black as possible In order to do that the Black level slider should be moved until black is distributed as evenly as possible on the mask...

Page 16: ...oving the slider from the maximum value to the left you can obtain a perfect distribution of white on a given object A view after a White level adjustment In many cases the option White level will be...

Page 17: ...difference in luminance between the background and the object This means that semi transparent objects e g a glass or glasses become more distinct A view before and after an adjustment is presented i...

Page 18: ...the left hand side the algorithm will automatically remove the green colour component if this is the keyed colour similarly blue if the background is blue Once the Despill color slider is moved to pos...

Page 19: ...rom the object but this time on the basis of the chrominance components The Despill fine slider After the application of Despill coarse which is used for preliminary correction more accurate adjustmen...

Page 20: ...natural The Edge brightness slider A view before an Edge brightness adjustment A view after an Edge brightness adjustment 7 6 Limitation of the Mask Area Garbage mask is used to reduce the mask size...

Page 21: ...eans of the sliders Left Right Top Bottom it is possible to place the object within the area of the keyed background A view after a Garbage mask correction with the keying algorithm switched off After...

Page 22: ...ce on the final look of the virtual background By moving for instance the Left slider within its full range no noise colour shifts or changes in the background grayness should be visible 7 7 Post Corr...

Page 23: ...o is shown against a background of a sunny beach then the yellow colour is added to match the object to the beach the dominating colour of sand or the sun will be an impact on the object In simple wor...

Page 24: ...cooperates Work format This is the output format of the camera Cam format This is the input format of the camera BKG format This is the input format of the background 7 10 Main Window Functions Main W...

Page 25: ...ion of the device selection window on the basis of the device s name MAC address or allocated IP network address Change Device button The Device Selector window 7 12 Configuration This function opens...

Page 26: ...button to start the firmware upgrade wizard Change firmware window Network configuration this option enables network settings to be configured Network configuration window Inputs configuration this op...

Page 27: ...onfiguration this option allows the user to select the logical output on which the MATTE is visible Output Configuration window As illustrated in the diagram below PVW output only HDMI or SDI PGM outp...

Page 28: ...irror function inverts the image rotation along the vertical axis PVW out connectors HDMI SDI This function is very useful for talent to see his composed preview on side monitor Checking Unchecking MI...

Page 29: ...lent is outlined as follows 1 First of all double click the DVK 300HD icon into the DVK 300HD core 2 After you have opened the DVK 300HD Utility Program check your SW and FW versions and make sure the...

Page 30: ...neighboring inputs On the output screen Fill Source is in the front and behind the fill source is the Key Source 7 The SDI input connected to the Fill Source is then assigned to DSK of the SE 2800 swi...

Page 31: ...options Hardware Config tab Check the box Use DTR and RTS to control RST and ISP pin as shown in the diagram below 4 Close the Advanced Options dialogue box and on the main window select LPC1768 proc...

Page 32: ...he lower left hand corner of the main window displays Finished Note The RS 232 communication interface can also be used for remote access of the DVK 300HD from the PC Please see the next section for m...

Page 33: ...Count Command Byte Parameter 1 Parameter 2 Parameter N Checksum Item Description Sync Byte 0xAA Byte Count The total number of subsequent bytes in the block from command byte to Checksum byte Valid by...

Page 34: ...ssing Command Code 0x10 Parameter 1 0x01 Set keying mode 0x02 Set background color 0x03 Background color tone detection Parameter 2 Keying mode 0x01 Chroma 0x02 Luma 0x03 Disable Background color 0x01...

Page 35: ...pha matte Parameter 2 Set matte denoise 0x00 denoise Off 0x01 denoise LOW 0x02 denoise HIGH Show alpha matte 0x00 Alpha matte view disabled 0x01 Alpha matte view enabled Return Item Sync Byte Byte Cou...

Page 36: ...ion 0x03 Set fine spill correction Parameter 2 bit1 bit0 spill bit9 bit8 bit7 bit2 0 Parameter 3 bit7 bit0 spill bit7 bit0 Return Item Sync Byte Byte Count Response Message Checksum In Response To Com...

Page 37: ...on Post correction Command Code 0x18 Parameter 1 0x01 Post correction enable 0x02 Post correction brightness 0x03 Post correction contrast 0x04 Post correction saturation 0x05 Post correction ambient...

Page 38: ...meter 1 0x01 Save current preset 0x02 Load preset Parameter 2 Save current preset 0x01 Save to slot 1 0x02 Save to slot 2 0x03 Save to slot 3 0x04 Save to slot 4 Load preset 0x01 Load from slot 1 0x02...

Page 39: ...1B Parameter 1 0x01 Alpha matte visible 0x02 PVW mirror Parameter 2 Alpha matte visible 0x01 PVW only 0x02 PGM only 0x03 PVW PGM PVW mirror 0x00 disable 0x01 enable Return Item Sync Byte Byte Count Re...

Page 40: ...ord 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 Re...

Page 41: ...aximum 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...

Page 42: ...mode 0x02 Get background color 0x03 Background color tone detection Return Get Keying Mode Return Sync Byte 0xAA Byte Count 0x04 Byte 1 0x90 Command code Byte 2 0x01 Get keying mode Byte 3 Keying mode...

Page 43: ...Default color Checksum 0x93 Return Get Background Color Tone Detection Real Color Tone Detected Return Sync Byte 0xAA Byte Count 0x06 Byte 1 0x90 Command code Byte 2 0x03 Background color tone detect...

Page 44: ...E 292M 1080p50 1080p59 94 1080p60 SMPTE 425M HDMI Formats 480i 576i 720p50 720p59 94 720p60 1080i50 1080i59 94 108 0i60 1080p25 1080p30 1080p50 1080p59 94 1080p60 Background Input SDI Formats 576i 480...

Page 45: ...44 Service Support...

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