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P-Scope Quick Start Guide – Rev. AP5 

 

P/N 68-00214 

 

 

Page 46 

Viewing the Pixel Values on the Video Frame Viewer   

You can click on a pixel in the 

Video Frame Viewer

 and reads its component values. 

To view a pixel value on the Video Frame Viewer: 

1.  Click on a pixel and read the pixel value on the 

Video Frame Viewer

 status area next to the activation 

buttons. 

 

 

 

Содержание HDMI P-Scope

Страница 1: ...HDMI P Scope Quick Start Guide Rev AP5 ...

Страница 2: ... What kinds of data does the P Scope allow you to view By providing visibility into the HDMI protocol the P Scope enables you to detect changes and anomalies in the HDMI signal and to compare data types The following is a list of the data types you can view currently Data Islands including o Infoframes AVI Audio Source Product Descriptor etc o General Control Packet GCP o Audio Clock Recovery ACR ...

Страница 3: ... Front Panel The P Scope front panel has two LEDs The green LED is a power indicator the yellow LED indicates that the hard drive is being accessed There is power up button to turn the P Scope on along with the rocker switch on back There are two 2 USB connectors which are not used and one firewire connector that is not used Interface Description The P Scope rear view shown in the photo below prov...

Страница 4: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 ...

Страница 5: ...cope application windows The P Scope is an application that runs on your local PC Main Window The main window is shown in the figure below without any other windows open The P Scope window enables you to close maximize and right size float any or all of its windows You can also detach the windows and drag them out of the main window ...

Страница 6: ...ation has lost connection with the PC this option enables you to reconnect using the same IP address System Configuration Opens up the Configuration Menu which enables you to set the IP address set the subnet mask set the gateway enable or disable DHCP Instrument Enable Logging Creates a log of the command line data being sent to the P Scope This is primarily for debug purposes Tile Window Tiles t...

Страница 7: ...Opens up the Detailed Data window which enables you to view the details of each transaction for all lines in a previously selected frame Video Frame Viewer Enables you to see the video pattern that is active sent in from the source for a particular frame Frame Chart This button appears once you have accessed a specific frame from the Frame Data Chart window When it is present clicking on it will o...

Страница 8: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 Capture Control Window The Capture Control button is used to access the Capture Control window shown in the figure below ...

Страница 9: ... defined by the Clock Deviation parameter Clock Deviation Slide Bar 0 to 100 Defines what constitutes a Pixel Clock Change Expressed in percentage of the pixel rate This option is only available when you have selected Video Format Change option is set to Trigger on Pixel Clock Change Frames Before Stop Slide Bar 10 to 100 The number of frames that are captured after the trigger criteria is met Thi...

Страница 10: ...rames for capture and storage by sliding the bar to a particular value You can capture up to about 1150 frames at 576p 480p and about 204 frames at 1080p Capture Buffer Entry Field 0 100 Enables you to explicitly enter a percentage of the maximum number of frames for capture and storage You can capture up to about 1150 frames at 576p 480p and about 204 frames at 1080p Start Capture Data Causes the...

Страница 11: ...ta Chart window opens when you click on the Frame Data Chart button It is shown below along with a table describing its attributes You can zoom in drill down to a closer view of the frames by surrounding at subset with the cursor The following two figures depict this drill down ...

Страница 12: ...is Domain of the chart These are the frame numbers within the captured data set viewed on the chart The increments between the frame numbers will decrease as you select a smaller range of frames to view on this chart Legend The legend underneath the chart shows you the color coding for the packet data types that occur on the chart Frame Statistics The Frame Statistics are shown on the bottom of th...

Страница 13: ...tart Guide Rev AP5 P N 68 00214 particular frame that is selected as indicated by the vertical blue line frame 37 in the figure above Go to Frame Clicking on the Go to Frame button will open up the Frame Chart window ...

Страница 14: ...indow is shown below in the top portion of the main window Each frame in the horizontal list has a thumbnail of the video pattern for that frame along with the frame number in the capture buffer and the active timing parameters horizontal and vertical You can scroll through to access specific frames Clicking on a frame will take you to the Frame Chart for that frame ...

Страница 15: ...ector window This window is shown below along with a table describing its attributes You can zoom in drill down to a closer view of the lines by surrounding a subset of the lines with the cursor The following two figures depict this drill down You can access the Detailed Data window to view detailed information about the packets occurring in the frame ...

Страница 16: ... Number is the X axis Domain of the chart This is the frame numbers within the captured data The increments between the line numbers will decrease as you select a smaller range of lines to view on this chart Legend The legend underneath the chart shows you the color coding for the packet data types that occur on the chart Line Statistics The Line Statistics are shown on the bottom of the chart The...

Страница 17: ...ev AP5 P N 68 00214 particular frame that is selected as indicated by a vertical blue line View Detailed Data Clicking on the View Detailed Data button will open up the Detailed Data window populated with the data from that frame ...

Страница 18: ...rotocol transactions records When you highlight a transaction the details for that transaction are shown in the two panels below 1 Details and 2 Data The Details panel shows the data for the selected transaction parsed out in human readable form The Data panel shows the data for the selected transaction parsed out in hex form The following table describes the information on the Detailed Data windo...

Страница 19: ... Events Not currently used Others TMDS data Packets The Packets window is a scrolling window that provides the following information Frame Not currently supported Line Not currently supported Pixel Not currently supported Timestamp Provides the timestamp for each transaction since the beginning of the captured data Events Not currently supported Dir ection Indicates the direction of the transactio...

Страница 20: ...Frame Viewer button or by clicking on a frame from the Frame Selector window The Video Frame Viewer enables you to click on a pixel and then view the pixel coordinates and their color component values You can view the pattern in three scales using the Zoom In and Zoom Out buttons on the bottom The following table describes the information on the Video Frame Viewer window Item Function Refresh Refr...

Страница 21: ...s you select pixels more accurately Zoom Out Enables you view the entire video pattern Save to Bitmap Enables you to save the bitmap to a file on your PC Stats Shows the information related to the current pixel selected The horizontal and vertical values for the pixel are shown as well as the component values RGB or YCbCr ...

Страница 22: ...tart Guide Rev AP5 P N 68 00214 Tiling Windows The Tile Frames selection enables you to tile the windows The figure below is a depiction of a set of untiled windows and the window after that shows these windows tiled ...

Страница 23: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 ...

Страница 24: ... 1 Assemble the source device under test a PC with Java and the P Scope into your lab area and power them up 2 Connect the HDMI source device under test to the P Scope using an HDMI to HDMI cable 3 Connect the Ethernet crossover provided cable between the P Scope and your host PC 4 Launch the P Scope application and connect using the default IP address 5 Specify a trigger method 6 Initiate the cap...

Страница 25: ...your host PC The default IP address of the P Scope is 192 168 0 1 You can configure the IP address at a later time Use the procedures below to connect to the P Scope from your host PC Connecting to the P Scope 1 Download the zip file containing the P Scope application from the products page of the Quantum Data web site www quantumdata com products pscope asp 2 Connect the Ethernet cross over cable...

Страница 26: ...re below 4 Double click on the P Scope jar file A dialog box will open asking for an IP address 5 Enter the IP address of the P Scope to connect Use 192 168 0 1 which is the default IP address This is shown in the figure below The main window appears with the Capture Control window present Chapter 4 provides instructions on how to configure this window to capture data ...

Страница 27: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 ...

Страница 28: ...enu select System Configuration The Configuration Menu window appears as shown below 2 Set the IP address using the information in the figure and table below The following table describes the items on the Configuration Menu window Item Function IP Address Text entry field for entering a new IP address Subnet Mask Text entry field for entering a new subnet mask Zoom Out Text entry field for enterin...

Страница 29: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 checkbox address of the P Scope from a network DHCP server ...

Страница 30: ...ow should be open Capturing HDMI protocol data The procedures below describe how to capture data from the device under test To capture data from the source device under test 1 Configure the HDMI source device under test to output HDMI data Make sure that the device is also putting out audio 2 Configure the mechanisms for triggering and capturing data from the Capture Control window Use the informa...

Страница 31: ...ormat Change option is set to Trigger on Pixel Clock Change Begin Indicates that the data that is captured and stored for later analysis is the data throughout out a range which begins at the trigger point and extends to the range of frame data whose capacity is defined by the Capture Buffer setting Center Indicates that the captured data stored for later analysis is the data throughout out a rang...

Страница 32: ...f the capture buffer you want to capture You can capture up to about 1150 frames at 576p 480p and about 204 frames at 1080p 4 Click on the Capture Data button The P Scope will capture the data The cursor becomes an hour glass icon to indicate that the capture is in progress When the P Scope is done capturing data its windows will be reconfigured as shown below with the Frame Selector window on top...

Страница 33: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 Page 33 ...

Страница 34: ...ernatively you can leave the selector on the default frame which is frame 0 2 A blue selector a vertical line will appear at that frame The default for this window that the selector will be on frame 0 You will not be able to see the blue selector in this case 3 View the lower panel of the Frame Data Chart window The Frame Data Chart window shows you the types of data packets that are present on th...

Страница 35: ...o view the various data types for a particular line Navigating to the Frame Number Chart window from the Frame Data Chart window 1 From the Frame Data Chart window locate a frame or set of frames containing the lines you wish to view 2 Surround a set of frames to view a smaller set if necessary as shown in the figure below The resulting screen is shown below 3 Reposition the selector to the desire...

Страница 36: ...v AP5 P N 68 00214 Page 36 4 Click on the Show Frame button to open up the Frame Number Chart window The following figure shows the resulting window configuration with the Video Frame Viewer window and the Frame Chart window open ...

Страница 37: ... Quick Start Guide Rev AP5 P N 68 00214 Page 37 5 Select a line with the selector or leave the selector at line 0 which is the default You can see the packet information in the Line Statistics panel for line 0 ...

Страница 38: ...own to view the detailed transaction data from the Frame Number Chart window Navigating to the Detailed Data window from the Frame Number Chart window 1 From the Frame Data Chart window locate a set of lines containing the detailed data you wish to view Surround a set of lines to view a smaller set of lines if necessary as shown in the figure below ...

Страница 39: ...ine selector set at line 253 and the Line Statistics panel now shows the packet contents for this line 3 To view the protocol data transactions click on the View Detailed Data button The Detailed Data window appears as show in the figure below The Detailed Data window shows the protocol data for the selected frame with the transactions for the line selected in the Frame Chart in the middle of the ...

Страница 40: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 Page 40 ...

Страница 41: ...to view its contents as shown below The Detailed Data window above shows the AVI Infoframe data record selected The AVI infoframe contents are parsed out in human readable text on the Details panel left The hex representation of the contents are shown in the lower right side Data panel right ...

Страница 42: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 Page 42 5 Highlight a General Control Packet record to view its contents as shown below ...

Страница 43: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 Page 43 6 Highlight an audio infoframe record to view its contents as shown below ...

Страница 44: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 Page 44 7 Highlight an Audio Clock Recovery packet record to view its contents as shown below ...

Страница 45: ...P Scope Quick Start Guide Rev AP5 P N 68 00214 Page 45 8 Highlight an audio sample packet record to view its contents as shown below ...

Страница 46: ...Values on the Video Frame Viewer You can click on a pixel in the Video Frame Viewer and reads its component values To view a pixel value on the Video Frame Viewer 1 Click on a pixel and read the pixel value on the Video Frame Viewer status area next to the activation buttons ...

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