Agilent Technologies 1660AS User Manual

XPATtern 

Command

:MACHine{1|2}:TWAVeform:XPATtern <label_name>,
<label_pattern>

The XPATtern command allows you to construct a pattern recognizer term
for the X marker which is then used with the XSEarch criteria and
XCONdition when moving the marker on patterns.  Since this command deals
with only one label at a time, a complete specification could require several
iterations.

When the value of a pattern is expressed in binary, it represents the bit
values for the label inside the pattern recognizer term.  In whatever base  is
used, the value must be between 0 and 2

32

 

− 1, since a label may not have

more than 32 bits.  Because the <label_pattern> parameter may contain
don’t cares, it is handled as a string of characters rather than a number.

<label_name>

string of up to 6 alphanumeric characters

<label_pattern>

"{#B{0|1|X} . . . |

#Q{0|1|2|3|4|5|6|7|X} . . . |

#H{0|1|2|3|4|5|6|7|8|9|A|B|C|D|E|F|X} . . . |

{0|1|2|3|4|5|6|7|8|9} . . . }"

OUTPUT XXX; ":MACHINE1:TWAVEFORM:XPATTERN ’A’,’511’"

Query

:MACHine{1|2}:TWAVeform:XPATtern? <label_name>

The XPATtern query, in pattern marker mode, returns the pattern
specification for a given label name.  In the time marker mode, the query
returns the pattern under the X marker for a given label.  If the X marker is
not placed on valid data, don’t cares (X) are returned.

Returned Format

[:MACHine{1|2}:TWAVeform:XPATtern] <label_name>,

<label_pattern><NL>

OUTPUT XXX;":MACHINE1:TWAVEFORM:XPATTERN? ’A’"

TWAVeform Subsystem

23–23