UART/RS232 Triggering and Serial Decode
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Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide
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• A parity error will cause the associated data word to be shown in red, which
includes the 5-8 data bits and the optional 9th bit.
UART/RS232 Totalizer
The UART/RS232 totalizer consists of counters that provide a direct measure of
bus quality and efficiency. The totalizer appears on screen whenever UART/RS232
Decode is ON in the Analyze menu.
The totalizer is running, counting frames and calculating the percentage of error
frames, even when the oscilloscope is stopped (not acquiring data).
The ERR (error) counter is a count of Rx and Tx frames with parity errors. The TX
FRAMES and RX FRAMES counts include both normal frames and frames with
parity errors. When an overflow condition occurs, the counter displays
OVERFLOW
.
The counters can be reset to zero by pressing the
Reset UART Counters
softkey in
the UART Settings menu.
