Teledyne LeCroy USB Chief - Users Manual - Manual (Page 45)

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Chief User’s Manual CATC Version 1.7
Token Event Sequencing
You can set the Analyzer to trigger only after it detects a specific sequence of
events. The Analyzer looks for the occurrence of the first token event and, once
that has taken place, begins looking for the second event. The Trigger occurs after
the second event takes place.
You can also set an event to trigger a Restart. If the Restart event occurs after the
first Token event in a sequence but before the second, the Analyzer restarts its
search for the first event.
This feature enables designers to designate a specific sequence of events that must
occur before the Analyzer begins capturing data (triggers), thus pinpointing
certain types of events for recording.
Filter Out/In
To set up events from the Token and Frame Event Groups to be used to filter a
recording,
Step 1 Click the blue dot on Filter Out.
Step 2 Use this menu to toggle the selection between Filter Out and Filter In.
• Filter In records ONLY those packets related to the specified event.
• Filter Out records all packets EXCEPT those related to the specified event.
Note Only events from the Token and Frame Event Groups can be used to filter a
recording.
Setting Counters
Use the Count Blue Dot menu to define how many times an event must occur
before it triggers a recording. For greater flexibility of triggering, you can use two
Counters to count up to fifteen occurrences of an event.
To set a Counter,
Step 1 Click on the blue dot in the upper left corner of the Count button.