Protocol analysis
R&S
®
RTE
825User Manual 1326.1032.02 ─ 20
For details on configuration settings, see Chapter 13.16.2.1, "USB 2.0 configuration
settings", on page 821.
Serial Bus Setup
1. Press the [PROTOCOL] key on the front panel.
2. Select the tab of the bus you want to set up, for example "SB1".
3. In the "Decode" tab, select the protocol: "USB 2.0".
4. Tap "Protocol" and select the protocol: "USB 2.0".
5. Optionally, you can enter a "Bus label" in the "Display" tab.
6. Tap "Protocol type" and select the protocol type that you want to set up.
7. Depending on the protocol type, select the waveform for each of the available "D+",
"D-", "Differential", "Data", and "Strobe" lines.
8. Set the logical thresholds: Either to the middle reference levels with "Auto thresh-
olds", or enter a user-defined value directly in the "Threshold" fields.
9. Enable "Decode".
13.16.3 USB 2.0 trigger
If you need information on how to get started with triggering on USB 2.0 signals, see
Chapter 13.16.3.2, "Triggering on USB 2.0", on page 835. Otherwise proceed with the
USB 2.0 trigger settings.
13.16.3.1 USB 2.0 trigger settings
Access: [PROTOCOL] > "Trigger" tab > "Source = Serial Bus"
In this section, all trigger settings are described. Their availability on the instrument
depends on the selected USB 2.0 protocol type and trigger type. The user interface of
the instrument displays only appropriate settings and guides you through the trigger
setup.
For a list of supported trigger conditions, refer to data sheet.
USB (option R&S RTE-K60)
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