Setting Up A Trigger - Agilent Technologies 16712A Help Manual

Chapter 1: Agilent Technologies 16712A 128K Sample Logic Analyzer
The Trigger Tab
all branches, and the first branch that matches is taken. See "Setting
Up Loops and Jumps in the Trigger Sequence" on page 79 for more on
branching.
To look for a sequence of events (for example, first look for a memory
reference on ADDR, then a certain value on DATA, and when IRQ goes
low, trigger) use different sequence levels. When a sample matches the
event described in a sequence level, the analyzer goes to the next
sequence level and compares the rest of the incoming events. When
the logic analyzer reaches the trigger level and finds a sample that
matches the trigger event you specify, the logic analyzer triggers.

Setting Up a Trigger

When setting up a trigger sequence, you typically trigger first on a
simple pattern or edge. From that point, you execute an iterative
process of adding or fine-tuning sequence steps until the analyzer
consistently triggers at the desired point.
To Set Up a Trigger
1. Define resource terms. (see page 92)
2. Select the most appropriate trigger function and select the Replace button.
(see page 76)
3. Select the sequence level number button and choose Edit. (see page 78)
4. If necessary, insert and edit additional sequence steps. (see page 77)
See Also
"Trigger Functions" on page 82
"Working with the User-level Function" on page 89
"Overview of the Trigger Sequence" on page 81
Selecting a Function to Match Trigger Conditions
Review the list of trigger functions and select the one that matches the
event you are looking for. In most cases one of the predefined functions
provides a good starting point. If none of the predefined trigger
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