Technical data

Table Of Contents
414 Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide
20 :MTESt Commands
:MTESt:SCALe:XDELta
(see page 860)
Command Syntax
:MTESt:SCALe:XDELta <xdelta_value>
<xdelta_value> ::= X delta value in NR3 format
The :MTESt:SCALe:XDELta command defines the position of the X2
marker with respect to the X1 marker. In the mask test coordinate system,
the X1 marker defines where X=0; thus, the X2 marker defines where X=1.
Because all X vertices of the regions defined for mask testing are
normalized with respect to X1 and
X, redefining X also moves those
vertices to stay in the same locations with respect to X1 and
X. Thus, in
many applications, it is best if you define XDELta as a pulse width or bit
period. Then, a change in data rate without corresponding changes in the
waveform can easily be handled by changing
X.
The X-coordinate of polygon vertices is normalized using this equation:
X = (X * X) + X1
The X delta value is a time value specifying the distance of the X2 marker
with respect to the X1 marker.
For example, if the period of the waveform you wish to test is 1 ms,
setting
X to 1 ms ensures that the waveform's period is between the X1
and X2 markers.
Query Syntax
:MTESt:SCALe:XDELta?
The :MTESt:SCALe:XDELta? query returns the current value of X.
Return Format
<xdelta_value><NL>
<xdelta_value> ::= X delta value in NR3 format
See Also "Introduction to :MTESt Commands" on page 387
":MTESt:SCALe:BIND" on page 412
":MTESt:SCALe:X1" on page 413
":MTESt:SCALe:Y1" on page 415
":MTESt:SCALe:Y2" on page 416