Protocol analysis
R&S
®
RTE
557User Manual 1326.1032.02 ─ 20
"Data"
Trigger on a serial pattern at a defined position in the data packet.
The pattern can include several subsequent symbols (data frames).
See "Data conditions" on page 557.
"Parity error"
Triggers on a parity error indicating a transmission error. This trigger
type is only available if a parity is configured for the UART bus.
"Break condi-
tion"
Triggers if a start bit is not followed by a stop bit, the data line
remains at logic 0 for longer than a UART word.
"Stop error"
Triggers if the stop bit is a logic 0.
Remote command:
TRIGger<m>:UART:TYPE on page 1483
Trigger source
Selects the transmitter or receiver line as trigger source.
Remote command:
TRIGger<m>:UART:SOURce on page 1484
Data conditions
Specify the data conditions if the trigger type is set to "Data".
Condition ← Data conditions
Selects the operator for the "Data" pattern: "Equal" or "Not equal".
Remote command:
TRIGger<m>:UART:FCONdition on page 1485
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 13.1.5, "Bit pattern editor",
on page 521.
Remote command:
TRIGger<m>:UART:DATA on page 1485
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 1484
UART/RS-232/RS-422/RS-485 (option R&S
RTE-K2)
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