398 Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide
25 CAN/LIN Triggering and Serial Decode
You may need to adjust the sample point to get a reliable trigger and
decode, depending on your CAN FD network topology and where the
oscilloscope probe is located in the network.
c Press the Standard softkey to select the standard that will be used when
decoding or triggering on FD frames, ISO, or non-ISO.
This setting has no effect on the processing of non-FD (classical) frames.
d Press the Back/Up key to return to the CAN Signals Menu.
9 Press the Signal softkey and select the type and polarity of the CAN signal. This
also automatically sets the channel label for the source channel.
• CAN_H — The actual CAN_H differential bus.
• Differential (H-L) — The CAN differential bus signals connected to an analog
source channel using a differential probe. Connect the probe's positive lead
to the dominant-high CAN signal (CAN_H) and connect the negative lead to
the dominant-low CAN signal (CAN_L).
Dominant low signals:
• Rx — The Receive signal from the CAN bus transceiver.
• Tx — The Transmit signal from the CAN bus transceiver.
• CAN_L — The actual CAN_L differential bus signal.
• Differential (L-H) — The CAN differential bus signals connected to an analog
source channel using a differential probe. Connect the probe's positive lead
to the dominant-low CAN signal (CAN_L) and connect the negative lead to
the dominant-high CAN signal (CAN_H).
Loading and Displaying CAN Symbolic Data
When you load (recall) a CAN DBC communication database (*.dbc) file into the
oscilloscope, its symbolic information can be:
• Displayed in the decode waveform and Lister window.
• Used when setting up CAN triggering.
• Used when searching for CAN data in the decode.
To recall a DBC file into the oscilloscope:
1 Press [Save/Recall] > Recall > Recall > CAN Symbolic data (*.dbc).
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