Setting Up Time Correlation Between Analyzers - Agilent Technologies HP 1660E Series User Manual

Logic analyzers

Table of Contents

Using the Trigger Menu

Setting Up Time Correlation between Analyzers

There are two possible combinations of analyzers: state and state, and

state and timing. Timing and timing is not possible because the

Analyzer Configuration menu only permits one analyzer at a time to be

configured as a timing analyzer. For either combination, time

correlation is necessary for interleaving and mixed display.

Time correlation is useful when you want to store different sorts of

data for each trace, but see how they are related. For instance, you

could set up a timing and a correlated state analyzer and see if setup

and hold times are being met. Or, you could set up two state analyzers

and have one watch normal program execution and the other watch

the control and status lines.

Time correlation requires that state analyzers store time tags. You set

the state analyzer to store time tags by turning on Count Time in the

Analyzer Trigger menu. The timing analyzer already stores time tags

when it samples data.

"Special displays" on page 232 for more information on interleaving and