Protocol analysis
R&S
®
RTE
737User Manual 1326.1032.02 ─ 20
"TLE_4998X"
Calculates the CRC according to the standard computing method for
Infineon TLE_4998X sensors.
For this method the checksum is calculated over all nibbles except
the communication nibble.
Remote command:
BUS<m>:SENT:CRCMethod on page 1705
Pause pulse
Determines whether a pause pulse is transmitted after the checksum nibble.
You can use this pulse to create a transmission with a constant number of clock ticks.
The pause pulse length can be between a minimum of 12 clock ticks up to 768 (3*256)
ticks at a maximum.
"No"
No pause pulse between the transmission sequences.
"Yes"
Pause pulse with fixed length at the end of each transmission
sequence.
The R&S RTE computes the length of the pause pulse automatically.
"For constant frame length"
Pause pulse with dynamic length to maintain a fixed transmission
sequence length.
To define the constant frame length, set the number of clock ticks
under Frame length [clock ticks].
Remote command:
BUS<m>:SENT:PPULse on page 1705
Frame length [clock ticks]
Determines the frame length in terms of ticks. The dialog displays this settings parame-
ter, if the signal has a constant frame length.
Remote command:
BUS<m>:SENT:PPFLength on page 1705
13.13.2.2 Configuring SENT protocol
The configuration of the SENT is simple - assign the two lines to input channels, and
set the thresholds.
For details on configuration settings, see Chapter 13.13.2.1, "SENT configuration",
on page 734.
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. Tap the "Protocol" button and select the protocol: "SPI".
4. Tap the "Data" button, and select the waveform of the data line.
5. If necessary, set the "Transmission Setup" parameters.
SENT (option R&S
RTE-K10)
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