Chapter 6: Concepts

Understanding Logic Analyzer Triggering

The same trigger as If/Then statements

Trigger functions can be modified. For example, if you start with the function “Find Edge”, you can add another event, and it becomes the same as “Find Edge and Pattern”. Therefore, a function that is not exactly correct can often be converted into the desired trigger. It is also possible to break down a function into the underlying If/Then statements and modify them.

The functions “Store range until pattern occurs” and “Store nothing until pattern occurs” make storage qualification much easier. These functions completely override the Default Storage. The “Store range until pattern occurs” function is shown in the following figure.

Store range until pattern occurs

Trigger functions are like building blocks because they can be used together in a trigger sequence. For example, if you want to set up a trigger as “Find edge followed by pattern”, you can use a “Find Edge” function for Level 1 and a “Find Pattern” function for Sequence Level 2 (see the following figure). So, functions are useful both as an entire trigger sequence and as one step in a trigger sequence.

253

Page 253
Image 253
Agilent Technologies 16760A manual Same trigger as If/Then statements, Store range until pattern occurs, 253