7: TSP command reference Series 2600B System SourceMeter® Instrument
7-22 2600BS-901-01 Rev. B / May 2013
bufferVar.fillmode
This attribute sets the reading buffer fill mode.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes Not applicable
See
0 (smuX.FILL_ONCE)
Usage
fillMode = bufferVar.fillmode
bufferVar.fillmode = fillMode
The reading buffer fill mode; set to one of the following:
• 0 or smuX.FILL_ONCE: Do not overwrite old data
• 1 or smuX.FILL_WINDOW: New readings restart at index 1 after acquiring reading at
bufferVar
The reading buffer; can be a dynamically allocated buffer (user-defined), or a
dedicated reading buffer (such as smua.nvbuffer1)
Details
When this attribute is set to smuX.FILL_ONCE, the reading buffer will not overwrite readings. If the buffer fills up,
new readings will be discarded.
When this attribute is set to smuX.FILL_WINDOW, new readings will be added after existing data until the buffer
holds bufferVar.fillcount elements. Continuing the sequence, the next reading will overwrite the reading
at index 1, the reading after that will overwrite the reading at index 2, and so on.
For dedicated reading buffers, all buffer attributes are saved to nonvolatile memory only when the reading buffer
is saved to nonvolatile memory.
Example
smua.nvbuffer1.fillmode = smua.FILL_ONCE
Sets fill mode of dedicated reading
buffer 1 (source-
channel A) to fill once (do not
Also see
bufferVar.fillcount (on page 7-21)
Reading buffers (on page 3-6)
bufferVar.measurefunctions
This attribute contains the measurement function that was used to acquire a reading stored in a specified reading
buffer.
Type TSP-Link accessible Affected by Where saved Default value
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