Quantum Data 802BT, User Manual

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306 Appendix A Command Reference
DVSP
Digital Video Signal Polarity
Class Format parameter setting - Digital video signal
Description Establishes the logic sense of the digital video outputs. The DVSP? query returns the
current setting of DVSP.
Command syntax DVSP polarity
polarity
0 = active-low (negative going video)
1 = active-high (positive going video)
Query syntax DVSP?
Query response polarity
Other required
commands
To use the digital video outputs, digital video must be enabled with the DVST command.
The FMTU command instructs the generator to use the new setting. The ALLU command
updates hardware to the new setting and redraws the test image.
Example
AVST 0 // Deselect analog video in buffer
DVST 5 // Select 3 bit color in buffer
DVSP 1 // Select active high video in buffer
FMTU
// Update hardware to current buffer contents