UART/RS232/422/485 Triggering and Protocol Decode 29
Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide 361
Interpreting UART/RS232/422/485 Lister Data
In addition to the standard Time column, the UART/RS232 Lister contains these
columns:
• Rx — receive data.
• Tx — transmit data.
• Errors — highlighted in red, Parity Error or Unknown Error.
Aliased data is highlighted in pink. When this happens, decrease the horizontal
time/div setting and run again.
Searching for UART/RS232/422/485 Data in the Lister
The oscilloscope's search capability lets you search for (and mark) certain types of
UART/RS232/422/485 data in the Lister (see
"Searching Lister Data" on
page 121). Then, you can use the navigation controls to navigate through the
marked rows (see
"Navigating the Time Base" on page 52).
The Search dialog box controls unique to the PN: UART/RS232 search type selection
are:
• Search for — Selects the decode value to find:
• Rx Data — Finds a data byte that you specify. For use when the DUT data
words are from 5 to 8 bits in length (no 9th (alert) bit).
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