UART/RS232 Triggering and Serial Decode 29
Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide 319
6 In the UART Settings menu, press the Base softkey to select the base (hex,
binary, or ASCII) in which decoded words are displayed.
• When displaying words in ASCII, the 7-bit ASCII format is
used. Valid ASCII characters are between 0x00 and 0x7F.
To display in ASCII you must select at least 7 bits in the
Bus Configuration. If ASCII is selected and the data
exceeds 0x7F, the data is displayed in hex.
• When #Bits is set to 9 in the UART Bus Config menu, the
9th (alert) bit is displayed directly to the left of the ASCII
value (which is derived from the lower 8 bits).
7 Optional: Press the Framing softkey and select a value. In the
decode display, the chosen value will be displayed in light
blue. However, if a parity error occurs the data will be
displayed in red.
8 If the oscilloscope is stopped, press the [Run/Stop] key to
acquire and decode data.
You can use the horizontal Zoom window for easier navigation of the acquired data.
See Also • "Interpreting UART/RS232 Decode" on page 320
• "UART/RS232 Totalizer" on page 321
• "Interpreting UART/RS232 Lister Data" on page 322
If the setup does not produce a stable trigger, the UART/RS232 signals may be slow enough
that the oscilloscope is auto-triggering. Press the [Trigger] key, then press the Mode softkey
to set the trigger mode from Auto to Normal.
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