Tektronix MSO64 [160/628] Trigger on sequential events a and b triggers

Set up trigger on a serial bus

Use this procedure to set up triggering on a serial bus.

Use this procedure if you have already created a serial bus. Serial buses require purchasing and installing serial bus options.

See Serial bus and trigger options on page 18.

To trigger on a Rise/Fall event:

1. Double-tap the Trigger badge on the Settings bar.

2. Tap Trigger Type and select Bus from the list.

3. Tap Source and select a serial bus from the list.

4. Tap Trigger On and select what to trigger on from the list. The displayed fields and controls depend on the bus type and

Trigger On selection. Use these fields to trigger on a specific bus condition. See Bus Trigger configuration on page 432.

Trigger on sequential events (A and B triggers)

Use the A and B Trigger Events to trigger on a second event after a first event occurs.

Set up sequential triggering

1. Double-tap the Trigger badge to open the Trigger configuration menu.

2. Tap Trigger Type and select Sequence. Sequence Trigger configuration menu on page 478

3. Set up the A Trigger Event:

a. Tap the A Trigger Event button to open the A Trigger Event menu.

b. Tap Trigger Type and select a trigger type from the drop-down list. This example uses Edge.

c. Tap Source and select the A event trigger source.

d. If displayed, tap Coupling and select the trigger coupling.

e. Tap Level and set the desired trigger level using the multipurpose knob. Or double-tap the field to set the value using

the virtual keypad.

f. Tap a Slope button to select the slope of the signal on which to trigger (Rise, Fall, Either).

g. Tap anywhere outside the A Trigger Event menu to close it.

4. Set up the B Trigger Event:

a. Tap the B Trigger Event button in the main Trigger configuration menu to open the B Trigger Event menu.

b. Tap Trigger Type and select a trigger type. This example uses Runt.

c. Tap Source and select a trigger source.

d. Tap Trigger When and select the condition on when to trigger on a runt signal.

e. Tap a Polarity icon to set the runt pulse polarity to detect (positive, negative, or either).

f. Tap the Upper Threshold and Lower Threshold fields and set the levels that a signal must cross to be considered a

valid signal. Signals that don't cross both these thresholds are runt signals.

g. Tap anywhere outside the B Trigger Event menu to close it.

5. To trigger on a specific occurrence of the B trigger event:

a. Tap After the A Trigger Event is found: Trigger on the Nth Trigger Event button in the main Trigger menu.

Advanced triggering

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