Agilent Technologies E1445A, User'S Manual And Scpi Programming Manual

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[:SEGMent]:DEFine
[SOURce:]LIST[1][:SEGMent]:DEFine < length > reserves enough waveform
segment memory for a waveform segment of length points for the segment currently
selected by
[SOURce:]LIST[1][:SEGMent]:SELect .
Parameters
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
<
length
> numeric see below | MINimum | MAXimum none
The length will be rounded up, if needed, to a multiple of 8 points. All defined waveform
segments share the waveform segment memory. Any one segment may use any part of
or all of this memory.
MINimum reserves 8 points; MAXimum reserves the largest available contiguous piece of
waveform segment memory (up to 262,144 points if no waveforms other than standard
function sine waves exist).
Comments
•
Once a waveform segment has been DEFined , it must be deleted
(
[SOURce:]LIST[1][:SEGMent]:DELete[:SELected]
command) before its reserved
length may be redefined. The voltage point and marker pulse list values and
length may be changed repeatedly without re-executing the
DEFine
command.
•
[SOURce:]LIST[1][:SEGMent]:DEFine
initializes the waveform segment voltage
point list to zero length and the marker pulse list to a length of 1 with a value of 0
(no markers will be generated).
•
While the reserved length must be a multiple of 8, rounded up if necessary, the
only restriction on the current waveform segment length (number of voltage
points stored) is that it be at least four points long.
•
Executable when Initiated: Yes
•
Coupling Group: None
•
Related Commands: [SOURce:]LIST[1][:SEGMent]:SELect
•
*RST Condition: Unaffected
•
Power-On Condition: No waveform segments are defined
Example
Reserving Memory for a Waveform Segment
LIST:SEL ABC Selects waveform segment ABC.
LIST:DEF 1024
Reserves 1024 points for ABC.
[SOURce:]LIST[1]
Chapter 8 Command Reference 339