4 Triggering
166 InfiniiVision Oscilloscopes User’s Guide
UART/RS232 Trigger
To trigger on a UART (Universal Asynchronous Receiver/Transmitter) signal connect the
oscilloscope to the Rx and Tx lines and set up a trigger condition. RS232 (Recommended
Standard 232) is one example of a UART protocol.
1 Press [Save/Recall]&Default Setup.
2 Press the [Label] key to switch labels on.
3 Turn on any analog or digital channels that you will be using for the UART/RS232
signals.
4 Press the [More] key in the Trigger section of the front panel. Rotate the Entry knob
until UART/RS232 is displayed in the Trigger softkey
5 Press the Settings softkey to display the UART/RS232 Trigger Menu.
Define
Bus
Trigger
Setup
Trigger level
or threshold
Currently
selected Rx or
Tx channel
UART/RS232
trigger mode
Return to
previous menu
Define
Signal
Channels
Trigger
Base
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