Agilent Technologies 2000 X-Series, User Manual

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128 Agilent InfiniiVision 2000 X-Series Oscilloscopes User's Guide
10
Triggers
Pattern Trigger
The Pattern trigger identifies a trigger condition by looking for a specified
pattern. This pattern is a logical AND combination of the channels. Each
channel can have a value of 0 (low), 1 (high), or don't care (X). A rising
or falling edge can be specified for one channel included in the pattern.
You can also trigger on a hex bus value as described on
"Hex Bus Pattern
Trigger" on page 130.
1
Press the
[Trigger]
key.
2
In the Trigger Menu, press the
Trigger
softkey; then, turn the Entry knob
to select Pattern .
3 For each analog or digital channel you want to include in the desired
pattern, press the
Channel
softkey to select the channel.
This is the channel source for the 0, 1, X, or edge condition. As you
press the
Channel softkey (or rotate the Entry knob), the channel you
select is highlighted in the Pattern = line directly above the softkeys
and in the upper- right corner of the display next to "Pat".
Adjust the trigger level for the selected analog channel by turning the
Trigger Level knob. Press the
[Digital]
key and select
Thresholds
to set
the threshold level for digital channels. The value of the trigger level or
digital threshold is displayed in the upper- right corner of the display.
4 For each channel you select, press the Pattern softkey; then, turn the
Entry knob to set the condition for that channel in the pattern.