Creating A User Level - Agilent Technologies 16517A User Reference

4-gsa/s timing and 1-gsa/s synchronous state logic analyzer
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Creating a User Level

Before you begin to program a trigger specification using user-defined
sequence levels, consider that in most cases one of the trigger macros will
work.
A trigger macro library is available with pre-defined sequence statements
already built for you. By using the trigger macros you can quickly form a
trigger specification that contains all the steps required to trigger at the
desired point. Simply select the macro and assign values to the resource
terms.
However, if you need to configure a user-defined sequence level to
accommodate a specific condition, or you prefer to construct a trigger
specification from scratch, the following information and examples will help
guide you conceptually through the task.
See Also
"Pre-defined Trigger Macros" found earlier in this chapter for complete
information on the available trigger macros for the different kinds of
measurements.
User-defined Sequence Levels
If you build your own trigger specification or modify a macro, you will use
resource terms, timers, counters, and combination terms. Each sequence
level has a "fill-in-the-blanks" type statement to start with. Depending on
what you place in the assignment fields, you may cause more assignment
fields to appear. When each assignment field is selected, a list of available
resource term choices appears.
See Also
"Resource Terms" found later in this chapter for more information on the
resource terms and how they work.
When creating a sequence statement, the typical method during a debug
operation is to first trigger on a simple pattern or edge. From that point, it
becomes an iterative process of adding or tuning sequence levels until you
consistently trigger at the desired point.
The Trigger Menu
Creating a User Level
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