Model 2601B-PULSE System SourceMeter Instrument Reference Manual Section 11: TSP command reference
2601B-PULSE-901-01A April 2020 11-255
The points parameter does not set the number of steps in a sweep, but rather is used to calculate
source values within a subsequent sweep. If the subsequent sweep has more points than specified in
points, the source will restart at the beginning. This means that if the trigger count is greater than
the number of points in a sweep as configured, the SMU will satisfy the trigger count by restarting the
sweep values from the beginning.
If the subsequent sweep has fewer points than specified in points, endValue will not be reached
during the sweep. This means that if the trigger count is less than the number of source values
configured, the SMU will satisfy the trigger count and ignore the remaining source values.
In cases where the first sweep point is a nonzero value, it may be necessary to pre-charge the circuit
so that the sweep will return a stable value for the first measured point without penalizing remaining
points in the sweep.
With linear sweeps, it is acceptable to maintain a fixed source resolution over the entire sweep. To
prevent source range changes during the sweep (especially when sweeping through 0.0), set the
source range to a fixed range appropriate for the larger of either startValue or endValue.
The SMU will only store the most recent configured source action. The last call to
smua.trigger.source.linearY(), smua.trigger.source.listY(), or
smua.trigger.source.logY() is used for the source action.
Source functions cannot be changed within a sweep.
After configuring the sweep source values, enable the source action by setting
smua.trigger.source.action.
Example
smua.trigger.source.linearv(0, 10, 11)
Sweeps from 0 V to 10 V in 1 V steps.
Also see
smua.trigger.source.action (on page 11-253)
smua.trigger.source.listY() (on page 11-255)
smua.trigger.source.logY() (on page 11-256)
Sweep Operation (on page 4-61)
smua.trigger.source.listY()
This function configures an array-based source sweep.
Usage
smua.trigger.source.listY(sweepList)
SMU source function (v = voltage, i = current)
An array of source values
Details
This function configures the source action to be a list sweep in a subsequent sweep. During the
sweep, the source will output the sequence of source values given in the sweepList array.