Triggers 10
Keysight InfiniiVision 2000 X-Series Oscilloscopes User's Guide 167
• Exit Sus (Exit Suspend) — triggers when exiting an idle state > 10 ms. This is
used to see the suspend/resume transition.
7 Press the Speed softkey to select the speed of the transaction being probed.
You may select Low Speed (1.5 Mb/s) or Full Speed (12 Mb/s).
8 Press the D+ and D– softkeys to select the channel connected to the USB signal
D+ and D– lines. The D+ and D– labels for the source channels are
automatically set.
As you press the D+ or D– softkey (or rotate the Entry knob), the D+ and D– label
for the source channel is automatically set and the channel you select is shown
in the upper-right corner of the display next to "USB".
If you have connected the oscilloscope's analog source channels to the D+ and
D- signals: Adjust the trigger level for each connected analog channel to the
middle of the waveform by pressing the D+ or D- softkey, then turning the
Trigger Level knob.
If you have connected the oscilloscope's digital source channels to the D+ and
D- signals (this applies to MSO model oscilloscopes only): Press the [Digital] key
and select Thresholds to set an appropriate threshold level for the digital
channels.
The value of the trigger level or digital threshold is displayed in the upper-right
corner of the display.
Serial Trigger
With serial decode option licenses (see "Serial Decode Options" on page 119),
you can enable serial trigger types. To set up these triggers, see:
• "CAN Triggering" on page 329
• "I2C Triggering" on page 344
• "LIN Triggering" on page 337
• "SPI Triggering" on page 355
• "UART/RS232 Triggering" on page 363
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