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23
CAN/LIN Triggering and Serial Decode
CAN Triggering
To set up the oscilloscope to capture a CAN signal, see
Signals"
The Controller Area Network (CAN) trigger allows triggering on CAN
version 2.0A and 2.0B signals.
A CAN message frame in CAN_L signal type is shown below:
After setting up the oscilloscope to capture a CAN signal:
1 Press [Trigger].
2 In the Trigger Menu, press the Trigger softkey; then, turn the Entry knob
3 Press the Trigger: softkey; then, turn the Entry knob to select the trigger
390
on page 387.
Bus
Arbitration
Control
Idle
Field
Field
SOF edge
to select the serial slot (Serial 1 or Serial 2) on which the CAN signal
is being decoded.
condition:
SOF - Start of Frame — The oscilloscope triggers at the start of a frame.
•
Remote Frame ID (RTR) — The oscilloscope triggers on remote frames
•
with the specified ID. Press the Bits softkey to select the ID.
Data Frame ID (~RTR) — The oscilloscope will trigger on data frames
•
matching the specified ID. Press the Bits softkey to select the ID.
Remote or Data Frame ID — The oscilloscope will trigger on remote or
•
data frames matching the specified ID. Press the Bits softkey to select
the ID.
Data Frame ID and Data — The oscilloscope will trigger on data frames
•
matching the specified ID and data. Press the Bits softkey to select
the ID and set up the number of data bytes and values.
Data
CRC
ACK
Field
Field
Field
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
"Setup for CAN
EOF
Intermission
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