Waiting For Trigger - Agilent Technologies 16712A Help Manual

128k sample logic analyzer

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You can either assign another pod pair to the machine with both timers,

or change your trigger specification to use only one timer term.

Waiting for Trigger

This message indicates that the specified trigger pattern has not

occurred. This may be expected, as when you are waiting to trigger on

an unusual event.

Possible Causes

• Misaligned boundaries for addresses

When the target is a microprocessor that fetches only from long-word

aligned addresses, if the trigger is set to look for an opcode fetch at an

address that is not properly aligned, the trigger will never be found.

• Trigger set incorrectly

Some strategies you can use when verifying or debugging trigger

sequence levels are:

• Look at the run status message line or open the Run Status window. It will

tell you what level of the sequence the logic analyzer is in.

• Stop the measurement and look at the data that was captured. This is

particularly useful when you use store qualifiers to store "no states" (or

only the states you are interested in) and the branches taken are stored.

• Save the trigger setup, then simplify it to see what part of the sequence

does get captured. When you learn what needs to be changed, you can

recall the original trigger setup and make changes to it.

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