Technical data

STR | APAT
This command defines whether a user pattern file should be a straight pattern or
an alternate pattern:
• STRaight
The pattern is repeatedly output.
• APATtern
The pattern is composed of two halves. The output depends on various other
commands; see “How the Serial BERT Uses Alternate Patterns” on page 55 for
more information.
The default is set to have a length of 128 bits for each half pattern; all bits are set
to zero and the trigger is set to occur on the A/B changeover. See “Working with
User Patterns in SCPI” on page 63 for information on using this command.
[SOURce[1]]:PATTern:UPATtern<n>:DATA[?]
IAgilentN490xPGPatternfile.SetData (IVI-compliant)
[SOURce[1]]:PATTern:UPATtern<n>:DATA [A | B,] <block_data>
[SOURce[1]]:PATTern:UPATtern<n>:DATA? [A|B,]
The query returns the block data for pattern A or pattern B.
This command is used to set the bits in user pattern files. See “Working with User
Patterns in SCPI” on page 63 for a detailed description on how to edit user patterns.
The parameters have the following meanings:
Table 26
Parameter Description
[A|B] Defines for which pattern the data is to
be set (A = standard pattern, B =
alternate pattern). If the pattern file
describes a standard pattern (:USE =
STRaight), this parameter cannot be B.
<filename> Name of the file being defined. If the file
does not exist, it is created.
5 SCPI Command Reference
126 Agilent J-BERT N4903B High-Performance Serial BERT
Return Range
Description
IVI-COM Equivalent
Syntax
Return Range
Description