VSPD

Vertical Sync Pulse Delay

Classification: Format parameter setting

Command Syntax: VSPD <lines>

Limits: <lines> min

0 (when SCAN = 1) or

1 (when SCAN = 2) max

VTOT-VRES-VSPW (when SCAN = 1) or [(VTOT-VRES-1) /2]-VSPW (when SCAN = 2)

Query Syntax:

VSPD?

Query Response:

<lines>

Description:

The VSPD command establishes the delay between leading edge

 

of blanking in the first (or even) field and the leading edge of

 

the vertical sync pulse. When interlacing, delay between end of

 

video and leading edge of vertical sync before second (or odd)

 

field is 0.5 line shorter than the whole-line delay specified. The

 

VSPD? query returns the current setting of the vertical sync

 

pulse delay.

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: V S P D

1 1

/ /

S e t V s y n c d e l a y t o 1 1 l i n e 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

VSPG

Vertical Sync Pulse Gate

Classification:

Format parameter setting

Command Syntax:

VSPG <mode>

Limits:

<mode>

 

0 = OFF

 

1 = ON

Query Syntax:

VSPG?

Query Response:

<mode>

Description:

The VSPG command enables and disables the digital vertical

 

sync output. The VSPG? query returns the current mode of VSPG.

Other Required Cmds:

In order to use digital vertical sync, 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:

V S P G 1 / / E n a b l e V s y n c o u t p u t 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

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Quantum Data 801GC, 801GF, 801GX manual Vspd, Vertical Sync Pulse Delay, Vspg, Vertical Sync Pulse Gate, 173