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Section 7: Command reference Model 2651A High Power System SourceMeter® Instrument Reference Manual

7-234 2651A-901-01 Rev. A / March 2011

Details

Set the stimulus of any trigger event detector to the value of this constant to have it respond to idle events from

this SMU.

Example

trigger.timer[1].stimulus =

smua.trigger.IDLE_EVENT_ID

Trigger timer when the SMU

returns to the idle layer.

Also see

Triggering (on page 3-32)

smuX.trigger.initiate()

This function initiates a sweep operation.

Type TSP-Link accessible

Affected by Where saved Default value

Function Yes

Usage

smuX.trigger.initiate()

Source-measure unit (SMU) channel (for example, smua.trigger.initiate()

applies to SMU channel A)

Details

This function causes the SMU to clear the four trigger model event detectors and enter its trigger model state

machine (moves the SMU from the idle state into the arm layer).

To perform source actions during the sweep, it is necessary to configure and enable one of the sweep source

actions, smuX.trigger.source.linearY(), smuX.trigger.source.listY(), or

smuX.trigger.source.logY(), and measure actions (smuX.trigger.measure.Y(), prior to calling this

function.

If you run this function more than once without reconfiguring the sweep measurements, the caches on the

configured measurement reading buffers will hold stale data. If you do run this function repeatedly without

reconfiguring the sweep measurement, use the bufferVar.clearcache() function to remove stale values

from the reading buffer cache.

This function initiates an overlapped operation.

Example

smua.trigger.initiate()

Starts a preconfigured sweep and

clears the event detectors for SMU

channel A).

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