Protocol analysis
R&S
®
RTE
515User Manual 1326.1032.02 ─ 20
Decode
Enables the decoding of the selected bus. The signal icon of the bus appears on the
signal bar.
Remote command:
BUS<m>[:STATe] on page 1420
13.1.2 Autoset for protocols
If you want to perform a quick protocol measurement, you can use the "Full autoset"
function. It allows you to find the correct instrument settings for the desired protocol. It
displays at least one decoded frame after the execution.
Performing a protocol autoset
1. Press [PROTOCOL] on the front panel.
2. Select the bus you want to configure.
3. Select the "Decode" tab.
4. Tap the "Protocol" you want to configure.
5. Assign the sources for the input channels.
6. Press the "Full autoset" button.
"Full autoset" performs the following steps:
●
Executes "Autoset" for the horizontal and vertical scale.
●
Adjusts the horizontal scale to display at least one frame or packet .
●
Executes "Auto thresholds" to determine the thresholds.
●
If necessary, performs bit rate estimation.
●
Sets default protocol trigger (frame start) .
●
Turns on the protocol decoder.
Remote command:
BUS<m>:FAUToset on page 1421
There are some limitations for the autoset:
●
It is not available, if the digital MSO channels are selected as a source for the
waveform.
●
Signals with longer idle phases might not find horizontal adjustment.
●
On duplex signals, different forward/reverse amplitudes can fail to determine
thresholds.
13.1.3 Display
For all protocols, you can select to display the decoded signal as a table and to show
the binary signal on the screen. Optionally, you can assign a label to the bus.
Basics of protocol analysis
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