Protocol analysis
R&S
®
RTO6
793User Manual 1801.6687.02 ─ 05
SFD Error ← Errors
Searches for a frame with invalid Start Frame Delimiter (SFD).
Remote command:
SEARch:
TRIGger:HBTO:
ERRor:SFD on page 2110
13.18.5.2 100BASE-T1 search results
To get search results, "Enable" the search. You can minimize, shift or close the search
dialog.
The search results are listed in the search result table and marked in the waveform by
blue lines.
For an introduction to search results, see:
●
Chapter 11.1.2, "Search results", on page 420
●
Chapter 11.4.2, "Display zoom settings", on page 440
Remote commands are described in Chapter 24.17.19.5, "Search results",
on page 2111.
13.18.5.3 Searching 100BASE-T1 data
Prerequisite: A serial bus is configured for the 100BASE-T1 signal to be decoded and
analyzed.
The search for events is set up in the following way:
1. Press the [Bus] key and selet the "Shortcuts" tab.
2. Tap "Setup search".
3. If the dialog box does not contain a search entry, tap the "Add" icon to create one,
as described in "To create a user-defined search" on page 434.
4. Tap "Source" and select the serial bus that is set to 100BASE-T1 (e.g. "SB1",
unless already selected).
The search dialog for 100BASE-T1 protocol analysis opens.
5. Specify search criteria according to Chapter 13.18.5, "Search on decoded
100BASE-T1 data", on page 789.
6. To acquire a waveform, press [Single].
The R&S RTO6 performs an 100BASE-T1 decode according to the thresholds and
protocol settings of the associated serial bus source (here in our example SB1).
7. To start searching the acquired waveform for specific events, tap "Enable" in the
search setup dialog.
The R&S RTO6 displays the "Search Results" box that lists the detected events.
Ethernet 100BASE-T1 (option R&S R
T
O6-K560)
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