Quantum Data 881 - Manual (Page 297)

881/882 Video Test Generator User Guide (Rev A.22) 279
XVSI 4 (or 3) // Selects the HDMI-H or HDMI-D interface
ALLU // Applies the interface setting to the generator
5. Enter the following commands to load a valid HDMI or DVI format into the analyzer.
FMTL DMT0660 // loads the DMT0660 (e.g.) format into the edit buffer
FMTU // applies the format to the generator/analyzer
6. Enter the following commands to setup the measurement of pixel data.
PDAX:FRMS 100 //sets the number of frames to analyze in the pixel
data analysis test to 100
PDAX:MXER 1000 //sets the maximum number of errors to record in pixel
data analysis test to 1000
PDAX:RPTG 1 //enables the generation of reports for the ppixel
data analysis test
PDAX:REFG 0 //enables auto reference capturing for the pixel
data analysis test
PDAX:CAPF //captures a frame of pixel data for the pixel
data analysis test
7. Enter the following commands to initiate the pixel data measurement test.
PDAU //runs the pixel data analysis test
8. Enter the following command to query for the results of the pixel data measurement
test.
PDAX:ERRQ ? 10 100 //retrieves 100 errors starting at the 10th error
in the index.
2, 110, 220, 128, 255, 64, 129, 250, 64 // shows the results
9. Enter the following command to query for the number of detailed error records.
PDAX:NERR ? //retrieves number of detailed errors recorded.
111 // shows the results
Reading pixel data
The following is an example of using commands to read the pixel component values of a
captured frame from an HDMI/DVI transmit device.
To view specific timing information of an external HDMI/DVI source signal:
1. Connect the HDMI/DVI transmit device to an HDMI IN connector on the generator.
2. Using a terminal emulator, establish a terminal connection with the generator. Refer
to “ Establishing a terminal session with the generator ” on page 31.
3. Choose the connector to which the transmit device is connected by entering the
following commands:
XVSI:IN 1 // Selects the HDMI-1 input connector
ALLU // Applies the interface setting to the generator
4. Choose the HDMI-H (or HDMI-D) item by entering the following commands: