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Chapter 6: Programming
Model 801GC, 801GF & 801GX¥Rev. A
HSPP
Horizontal Sync Pulse Polarity
Classification:
Format parameter setting
Command Syntax:
HSPP <polarity>
Limits:
<polarity>
0 = active-low (negative going pulse)
1 = active-high (positive going pulse)
Query Syntax:
HSPP?
Query Response:
<polarity>
Description:
The HSPP command establishes the logic sense of the digital
horizontal sync outputs. Setting polarity to one (1) causes the
leading edge of horizontal sync to be a low-to-high transition.
Setting polarity to zero (0) causes the leading edge of horizontal
sync to be a high-to-low transition. The HSPP? query returns
the current polarity of HSPP.
Other Required Cmds:
In order to use digital horizontal sync, it must be gated on with
the HSPG command and digital separate H&V sync must be
selected with the SSST 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:
H S P P 0 / / S e t a c t i v e l o H s y n c i n
/ / b u f f e r
H S P G 1 / / E n a b l e H s y n c o u t p u t i n
/ / b u f f e r
S S S T 1 / / S e l e c t H & V s y n c t y p e i n
/ / b u f f e r
F M T U / / U p d a t e h a r d w a r e t o c u r r e n t
/ / b u f f e r c o n t e n t s
HSPW
Horizontal Sync Pulse Width
Classification:
Format parameter setting
Command Syntax:
HSPW <pixels>
Limits:
<pixels>
min = 1
max = HTOT - HRES - HSPD
Query Syntax:
HSPW?
Query Response:
<pixels>
Description:
The HSPW command establishes the width of the horizontal
sync pulse. The HSPW? query returns the current setting of
HSPW.
Other Required Cmds:
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:
H S P W 3 2 / / S e t p u l s e w i d t h t o 3 2 p i x e l s
/ / i n b u f f e r
F M T U / / U p d a t e h a r d w a r e t o c u r r e n t
/ / b u f f e r c o n t e n t s
Summary of Contents for 801GC, 801GF, 801GX
Page 1: ...Owner s and Programmer s Manual Model 801GC 801GF 801GX Portable Video Signal Generators ...
Page 16: ...xiv Table of Contents Models 801GC 801GF 801GX Rev A Notes ...
Page 17: ...1 1 Features Product Overview Chapter 1 Introduction ...
Page 21: ...2 1 Operating Modes Displays Indicators Knobs Switches Buttons Chapter 2 Basic Operation ...
Page 31: ...3 1 Introduction Format charts Chapter 3 Built In Formats ...
Page 39: ...4 1 Description of the test images and how to use them Chapter 4 Built In Images ...
Page 126: ...5 14 Chapter 5 Making Connections Model 801GC 801GF 801GX Rev A Notes ...
Page 304: ...6 178 Chapter 6 Programming Model 801GC 801GF 801GX Rev A Notes ...
Page 305: ...7 1 Power on Computer Interfacing If all else fails Chapter 7 Troubleshooting ...
Page 346: ...A 6 Appendix A Specifications Model 801GC 801GF 801GX Rev A Notes ...
Page 355: ...Notes ...