DVSP

Digital Video Signal Polarity

Classification:

Format parameter setting

Command Syntax:

DVSP <polarity>

Limits:

<polarity>

 

0 = active-low (negative going video)

 

1 = active-high (positive going video)

Query Syntax:

DVSP?

Query Response:

<polarity>

Description:

The DVSP command establishes the logic sense of the digital

 

video outputs. The DVSP? query returns the current setting of

 

DVSP.

 

 

 

 

Note – Please note that digital video is not supported by all

 

generators in the 801G series. Also, some models that support

 

digital video may not support active low for the polarity.

 

Other Required Cmds:

In order 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:

A V S T 0 / / D e s e l e c t a n a l o g v i d e o i n

 

/ / b u f f e r

 

D V S T 5 / / S e l e c t 3 b i t c o l o r i n b u f f e r

 

D V S P 1 / / S e l e c t a c t i v e h i v i d e o 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

6-116

Chapter 6: Programming

Model 801GC, 801GF & 801GX¥Rev. A

Page 242
Image 242
Quantum Data 801GC, 801GF, 801GX manual Digital Video Signal Polarity, 116, Dvsp?