Quantum Data 881 - Manual (Page 293)

881/882 Video Test Generator User Guide (Rev A.22) 275
Controlling the analyzer using the command line interface
You can operate the Analyzer using the generator’s command line interface. This section
describes Analyzer functions and commands and provides examples of command
sequences you can use to perform Analyzer tasks.
For command descriptions, see Appendix A, “ Command Reference .”
Signal timing analysis commands
This section provides command line procedures for running and viewing signal timing
parameters.
Viewing specific timing parameters
The following is an example of using commands to view the total number of horizontal
pixels and horizontal frequency of the HDMI/DVI signal.
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:
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 initiate the measurement of timing parameters.
TMAU // measure external signal’s timing parameters
TMAX:RPTG 1 // enables generation of an HTML report
TMAX:SCAN ? // queries for the SCAN parameter (interlaced or
progressive
TMAX:HRAT? // queries for the HRAT parameter (horizontal rate)