Keysight Technologies InfiniiVision 3000 X Series, User Manual

Page: 419 / 432

UART/RS232 Triggering and Serial Decode
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Keysight InfiniiVision 3000 X-Series Oscilloscopes User's Guide 419
UART/RS232 Serial Decode
To set up the oscilloscope to capture UART/RS232 signals, see "Setup for
UART/RS232 Signals" on page 415.
To set up UART/RS232 serial decode:
1 Press [Serial] to display the Serial Decode Menu.
2 Press Settings .
3 In the UART/RS232 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/RS232 Bus Configuration Menu, the 9th
(alert) bit is displayed directly to the left of the ASCII value (which is derived
from the lower 8 bits).
4 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.
5 If the decode line does not appear on the display, press the [Serial] key to turn it
on.
NOTE
For UART/RS232 triggering setup see "UART/RS232 Triggering" on page 417.