Protocol analysis
R&S
®
RTO6
527User Manual 1801.6687.02 ─ 05
Pattern ← Data conditions
Specifies the data pattern to be found on the specified trigger source, in binary or hex
format. Enter the words in msb first bit order
. The starting point of the pattern is defined
by
Position and Index min, Index max.
In binary format, use the following characters: 1; 0; or X (do not care). To enter the pat-
tern in other formats use the bit pattern editor, see Chapter 13.1.7, "Bit pattern editor",
on page 493.
Remote command:
TRIGger<m>:UART:DATA on page 1734
Position ← Data conditions
Operator for the data position. You can define an exact position, or a position range.
The setting is available if Packets is enabled in the protocol configuration.
Remote command:
TRIGger<m>:UART:DPOPerator on page 1733
Index min, Index max ← Data conditions
Sets the number of words before the first word of interest. These offset words are
ignored. If the Position defines a range, the first and the last words of interest are
defined.
The setting is available if packet detection is enabled in the protocol configuration.
Remote command:
TRIGger<m>:UART:DPOSition on page 1734
TRIGger<m>:UART:DPTO on page 1734
13.4.3.2 Triggering on UART signals
Prerequisites: An UART bus is configured, see Chapter 13.4.3.1, "UAR
T trigger set-
tings"
, on page 525.
1. Press the [Bus] key and select the "Shortcuts" tab.
2. Press "Setup trigger".
3. Tap the "Source" button and select the "Serial bus" trigger source.
4. Select the serial bus that is set to UART.
5. Select the "Trigger type" and "Trigger source".
6. For more complex trigger types, enter the data conditions: pattern, position, index.
For details, see Chapter 13.2.3, "I²C trigger", on page 499
13.4.4 UART decode results
When the configuration of the serial bus is complete, the signal can be decoded:
1. In the "Serial Bus" dialog >
"Setup" tab, enable "Decode".
UART/RS-232/RS-422/RS-485 (option R&S RT
O6-K510)
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