Section 7: TSP command reference
Series 2600B System SourceMeter® Instrument Reference Manual
7-198
2600BS-901-01 Rev. C / August 2016
Details
This function causes the SMU to regenerate the reading buffer statistics about the specified reading
buffer. Because the SMU automatically updates reading buffer statistics when data is added to the
reading buffer, this function is generally not needed. When the reading buffer is configured to wrap
around and overwrite older data with new data, the buffer statistics will include the data that was
overwritten. Use this function to recalculate the statistics that include only the data that is presently
stored in the buffer.
Also see
(on page 7-24)
(on page 7-196)
smuX.cal.adjustdate
This attribute stores the date of the last calibration adjustment.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
SMU cal. restore
SMU nonvolatile
memory
Initially set to factory calibration date
Usage
adjustDate
= smu
X
.cal.adjustdate
smu
X
.cal.adjustdate =
adjustDate
adjustDate
Date of the last calibration adjustment
X
Source-measure unit (SMU) channel (for example,
smua.cal.adjustdate
applies to SMU channel A)
Details
This attribute stores the adjustment date associated with the active calibration set. The adjustment
date can be read at any time, but can only be assigned a new value when calibration has been
enabled with the
smu
X
.cal.unlock()
function.
You cannot change the adjustment date without first making a change to the calibration constants.
Once you change any calibration constants, you must set the adjustment date before you can save
the calibration data to the SMU's nonvolatile memory.
This attribute is stored with the active calibration set. If a different calibration set is restored, this
attribute reflects the date stored with that set.
smu
X
.cal.adjustdate
must be set to the date the adjustment was done using the UTC time and
date. The date is stored as the number of seconds since UTC, 12:00 am Jan 1, 1970.
Due to the internal storage format,
smu
X
.cal.adjustdate
is only accurate to within a few minutes
of the value set.
Example
smua.cal.adjustdate = os.time()
Sets the adjustment date for SMU channel A to the current
time set on the instrument.
