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Commands in DSR Application Subsystems
:EDIT:SEGMent(*) Subsystem
104
Agilent 81250 Parallel Bit Error Ratio Tester, Programming Reference, March 2006
:<Handle>:EDIT:SEGMent(*):PATTern:
DATA?
Syntax
:<Handle>:EDIT:SEGMent(*):PATTern:DATA? <trace1>,<vector1>,<trace2>,
<vector2>,<HEX|BIN>
Parameters
<trace1>
Number of start trace.
<vector1>
Number of start vector.
<trace2>
Number of end trace.
<vector2>
Number of end vector.
<HEX|BIN>
Specifies the format of the data stream returned. This
can be a bit stream (BIN) or its conversion into a hexadecimal string—
as a sequence of ASCII characters—(HEX).
(*)
Inspector number of the segment.
Description
Retrieves data from a bounded rectangle in a segment.
The data is returned in a stream. The first bytes in the stream
correspond to all the data belonging to the first trace, followed by the
data corresponding to the next trace, and so on.
Data for every trace is packed in an exact number of bytes. For
example, if 5 vectors for every trace have been queried and the coding
is 2 bits long, 10 bits will be needed for every trace data. For these 10
bits, 2 bytes are needed, and the “empty” 6 bits will be returned as 0s.
After that, the 2 bytes for the next trace will appear in the data stream.
Every byte is filled starting from the most significant bits, so when
there are spare bits in one byte, the less-significant bits will not be
used. For more information on the coding, please refer to
“:<Handle>:
EDIT:SEGMent(*):PATTern:CODing?” on page 107
.
If the HEX format is selected, these bytes will be directly transformed
into hexadecimal ASCII characters. Every byte needs two hexadecimal
characters.
If the BIN format is selected, some additional information is required.
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