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Teledyne LeCroy UWBTracer User Manual User Manual

Page 229

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UWBTracer/Trainer User Manual

Chapter 12: Recording Options

LeCroy Corporation

211

Example 2: Creating an Event Counter

In addition to setting triggers and filters, you can set counters. A counter is an action that
lets you set a trigger based on a count of events. To continue the previous example, for
instance, you can create a rule that triggers on the tenth occurrence of a WUSB ACK.

Step 1 From example 1, the ACK is the first event in the state (Figure 12.29).

Step 2 Right-click the ACK event button in the cell. The Event pop-up menu

appears.

Step 3 From the Event pop-up menu, select the Add Counter option

(Figure 12.30).

Figure 12.30 Example 2: Adding a Counter

The Event properties dialog box appears. (See “Events and Event Properties”
on page 203 an
d “Actions and Action Properties” on page 204.). The set
counter box is at the lower left.

Step 4 By default, the counter box is set to a value of 2. For this example, reset

the box to 10.

Step 5 Close the Event properties dialog box. The counter value 10 now

appears in the ACK Event button (Figure 12.31). The trigger occurs after
the analyzer detects the tenth occurrence of an ACK.

Figure 12.31 Example 2: Complete Rule