Agilent Technologies InfiniiVision 6000 Series User Manual page 200

4 Triggering the Oscilloscope
200
3 Press the Signals softkey to display the UART/RS232 signals
menu.
Tx
Rx
channel
channel
4 Connect an oscilloscope channel to the Rx signal in the
circuit under test (the target system), then press the Rx
softkey and rotate the Entry knob to select the channel.
As you press the Rx softkey (or rotate the Entry knob on
mixed-signal oscilloscopes), the channel you select is shown
in the upper-right corner of the display next to "URT".
5 Make sure the trigger or threshold levels are set to the middle
of the signal:
• For analog channels, turn the Trigger Level knob.
For digital channels, press the D15-D0 key and the
•
Thresholds softkey to access the threshold level setting
softkeys.
The value of the trigger level or digital threshold is displayed
in the upper-right corner of the display.
6 Repeat these two steps for the Tx signal.
7 Press the up arrow key to return to the previous menu.
6000 Series Oscilloscope User's Guide
Return to
previous menu