HP 54645A, Руководство пользователя и сервисное руководство

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To define an advanced pattern trigger
The advanced triggering operation depends on previous selections in the
Advanced Trigger menu.
1
Press
Advancd
. Then select
Pattern
.
2
Press the
Overview
softkey to turn on the trigger overview, if desired.
The trigger overview display shows all the choices available in this menu.
3
Select Pattern Menu
.
4
Choose the trigger operator by pressing the Operator softkey until the
desired operator is shown.
The following table lists the trigger operators and the sources with which
they can be used. The sources you specify later in this procedure can limit
your choice of trigger operators, and your choice of trigger operators can
limit which sources are available. For example, the operator “Exited” applies
only to Pattern 1, Not Pattern 1, Pattern 2, and Not Pattern 2 individually,
but not to all of them at once.
Table 3-1 Trigger Operators and Sources
Operator # of Sources Valid Sources
Duration
(> time, < time,
Range) One Pat 1, Not = Pat 1
Pat 2, Not = Pat 2
Entered, Exited One Pat 1, Not = Pat 1
Pat 2, Not = Pat 2
AND, OR, Then Two Pat 1, Not = Pat 1
Pat 2, Not = Pat 2
Edge 1, Edge 2
Pat 1 & Edge 1
Pat 2 & Edge 2
Triggering HP 54645A/D Oscilloscopes
To define an advanced pattern trigger
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