Stanford Research Systems SR865A Operation Manual page 157

4 mhz dsp lock-in amplifier
Table of Contents

Advertisement

Chapter 4
numbers based on the value of
from the buffer.
Example
CAPTUREVAL? 3
CAPTUREGET? [ i ], [ j ]
The
CAPTUREGET?
block. The binary block returns j kbytes of capture buffer contents beginning with an
offset of i kbytes. If (i+j) is longer than
wrapped data.
The maximum length j is 64 (corresponding to 64 kbytes). Both parameters i and j must
be provided. Capture must be stopped when executing
is generated.
The binary block query response is in the following format:
Where "#" is the hash character (character code 35), "n" is a single digit specifying the
number of digits to follow in the block length count; "cccc" is the n–digit integer size of
the binary block to follow, and "xxxxxxx" is the cccc–byte binary data. Data is packed
as 4-byte (32-bit) single precision floating point binary, in little endian format.
Example
CAPTUREGET? 0,32
returns the data from position 3 (the 4
query returns all or part of the capture buffer contents as a binary
#nccccxxxxxxx
returns a binary block with 32 kbytes of capture data
. Querying with n=0 returns the oldest data
CAPTURECFG
CAPTURELEN
Programming
th
sample)
, then CAPTUREGET returns
CAPTUREGET?
or a range error
SR865A DSP Lock-in Amplifier
139

Advertisement

Table of Contents
loading

Table of Contents