10-10 Return to Section Topics 2600AS-901-01 Rev. B / September 2008
Section 10: Triggering Series 2600A System SourceMeter® Instruments Reference Manual
Table 10-3
Hardware trigger mode summary
Trigger configuration on hardware lines
The Series 2600A can be configured to send digital signals to trigger external instruments. Linking
these output triggers to the completion of certain source-measure actions enables hardware
handshaking.
Example:
-- Configure Series 2600A to detect rising edge on digital I/O line 2.
digio.trigger[2].mode = digio.TRIG_RISINGA
digio.trigger[2].clear()
-- Configure SMU A to start its source action when a trigger event
-- occurs on digital I/O line 2.
smua.trigger.source.stimulus = digio.trigger[2].EVENT_ID
-- Configure digital I/O line 4 to output a 1ms rising-edge trigger
-- pulse at the completion of SMU sweep.
digio.trigger[4].mode = digio.TRIG_RISINGM
digio.trigger[4].pulsewidth = 0.001
digio.trigger[4].stimulus = smua.trigger.SWEEP_COMPLETE_EVENT_ID
This example’s triggering setup is shown in Figure 10-5.
Trigger mode Output Input
Unasserted Asserted Detects
Bypass N/A N/A N/A
Either Edge High Low Either
Falling Edge High Low Falling
Rising Edge
The programmed state of the line
determines if the behavior is similar to
RisingA or RisingM:
• High similar to RisingA
• Low similar to RisingM
RisingA High Low Rising
RisingM Low High None
Synchronous
High
latching
Low Falling
SynchronousA
High
latching
High Falling
SynchronousM High Low Rising