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HSPP
Class
Description
Command syntax
Query syntax
Query response
Other required
commands
Example
Appendix A Command Reference
692
Horizontal Sync Pulse Polarity
Format parameter setting - Synchronization
Establishes the logic sense of the digital horizontal sync outputs. Setting polarity to 1
causes the leading edge of horizontal sync to be a low-to-high transition. Setting polarity to
0 causes the leading edge of horizontal sync to be a high-to-low transition. The HSPP?
query returns the current polarity of HSPP.
HSPP polarity
polarity
0 = active-low (negative going pulse)
1 = active-high (positive going pulse)
HSPP?
0 or 1
To use digital horizontal sync, it must be gated on with the
separate H and V sync must be selected with the
instructs the generator to use the new settings. The
hardware to the new settings and redraws the test image.
HSPP 0
// Set active low H sync in buffer
HSPG 1
// Enable H sync output in buffer
SSST 1
// Select H&V sync type in buffer
FMTU
// Update hardware to current buffer contents
HSPG
command and digital
SSST
command. The
FMTU
ALLU
command updates the
command
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