HP 16501A LOGIC Manual do Utilizador descarregar pdf (Página 112)

“Waiting for Trigger”

If a trigger pattern is specified, this message indicates that the specified

trigger pattern has not occurred. Verify that the triggering pattern is

correctly set.

When analyzing microprocessors that fetch only from long-word aligned

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

address not corresponding to a long-word boundary, the trigger will

never be found.

If a “don’t care” trigger condition is set, this message indicates:

For an HP 16511B Logic Analyzer, only one of the two cards is receiving

its state clock. Refer to “Slow or Missing Clock.”

For an HP 16510A/B Logic Analyzer, the pattern duration is probably set

to less than (<) instead of greater than (>). Since a “don’t care” pattern is

always true, the “less than” condition is never satisfied. Set the trigger

correctly for the measurement that is desired.

If You Have a Problem

“Waiting for Trigger”

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HP 16501A LOGIC Manual do Utilizador Página 112