Protocol analysis
R&S
®
RTE
555User Manual 1326.1032.02 ─ 20
Remote command:
BUS<m>:UART:PARity on page 1480
Packets
Allows you to define packets of several words in the data stream.
"None"
Packets are not considered.
"End word"
Defines a pattern as end condition of a packet, for example, a
reserved word like CR or LF. The bit pattern editor provides frequently
used values in the "Predefined values" list below the pattern table.
A new packet starts with the first start bit after the defined end pat-
tern.
"Timeout"
Defines a timeout between a stop bit and the next start bit. Enter the
minimum time that marks the end of a packet.
A new packet starts with the first start bit after the timeout.
Remote command:
BUS<m>:UART:PACKets on page 1481
BUS<m>:UART:TOUT on page 1482
BUS<m>:UART:EWORd on page 1482
13.4.2.2 Configuring UART protocol
For details on configuration settings, see Chapter 13.4.2.1, "UART configuration set-
tings", on page 552.
1. Press the [PROTOCOL] key on the front panel.
2. At the left-hand side, select the vertical tab of the bus you want to set up.
3. Select the "Decode" tab.
4. Tap the "Protocol" button and select the protocol: "UART".
5. Tap the "TX" button, and select the waveform of the transmitter line.
6. Tap the "Rx" button, and select the waveform of the receiver line.
7. Set the logical thresholds.
Either according to technology definition with "Preset thresholds", or to an auto-
matic value with "Full autoset"/ "Auto thresholds", or enter a user-defined value
directly in the "Threshold" fields.
8. Set the "Bit rate" and "Stop bits".
UART/RS-232/RS-422/RS-485 (option R&S
RTE-K2)
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