Loading ...
Loading ...
Loading ...
Serial Bus Analysis
R&S
®
RTB2000
197User Manual 1333.1611.02 ─ 03
"Predefined"
To select a bit rate from the list of predefined values, set "Bit rate" to
"Predefined" and select a value from the list.
"User"
To set another value, set "Bit rate" to "User" and enter a bit/s value.
Remote command:
BUS<b>:CAN:BITRate on page 404
Sample Point
Sets the position of the sample point within the bit in percent of the nominal bit time.
The sample point divides the nominal bit period into two distinct time segments, which
are used for resynchronization of the clock.
The CAN bus interface uses an asynchronous transmission scheme. The standard
specifies a set of rules to resynchronize the local clock of a CAN node to the message.
Remote command:
BUS<b>:CAN:SAMPlepoint on page 403
12.5.2 CAN Trigger
Before you set up the trigger, make sure that the bus is configured correctly. See
Chapter 12.5.1, "CAN Configuration", on page 195.
To trigger on CAN signals:
1. Press the PROTOCOL key in the Analysis area of the front panel.
2. Select the bus that is configured for CAN.
3. Select "Trigger".
This selection has several effects:
● Enables decoding, if necessary.
● Sets the "Trigger Type" to "Serial Bus" and the trigger source to the selected
bus.
● Displays the "CAN Trigger" condition in the dialog box, below the protocol
setup.
4. At "CAN Trigger", select the required trigger type:
● "Start of Frame": first edge of synchronization bit
● "End of Frame": frame number in a data stream
● "Frame": error, overload, data or remote frame
● "Error": stuff bit, form, acknowledgment, CRC
● "Identifier": specific message identifier or identifier range
CAN (Option R&S RTB-K3)
Loading ...
Loading ...
Loading ...