Hello,
I am trying to read data off of an SRS lock in amplifier in matlab, and I cannot seem to figure out how to read the data out after taking it from the buffer.
The command is:
The CAPTUREGET? query returns all or part of the capture buffer contents as a binary block. The binary block returns j kbytes of capture buffer contents beginning with an offset of i kbytes. If (i+j) is longer than CAPTURELEN, then CAPTUREGET returns 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 CAPTUREGET? or a range error is generated. The binary block query response is in the following format: #nccccxxxxxxx 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. The CAPTUREGET? query is not recognized on the RS-232 remote interface.
Example CAPTUREGET? 0,32 returns a binary block with 32 kbytes of capture data
fprintf(obj, 'CAPTUREGET? 0,16');
This results in near gibberish. Does anyone know of a tool to convert this binary block to an easier format?
Thanks,
Dan
https://www.thinksrs.com/downloads/pdfs/manuals/SR865Am.pdf
