Keysight DSOX3012T, Руководство пользователя

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406 Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide
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CAN/LIN Triggering and Serial Decode
In addition to the standard Time column, the CAN Lister contains these columns:
• ID — frame ID. Can be displayed as hex digits or symbolic information (see
“Loading and Displaying CAN Symbolic Data" on page 398).
• Type — frame type (RMT remote frame or Data).
• DLC — data length code.
• Data — data bytes. Can be displayed as hex digits or symbolic information.
• CRC — cyclic redundancy check.
• Errors — highlighted in red. Errors can be Acknowledge (Ack, A), Form (Fo), or
Frame (Fr). Different kinds of errors can be combined like "Fo,Fr" in the above
example.
Aliased data is highlighted in pink. When this happens, decrease the horizontal
time/div setting and run again.
Searching for CAN Data in the Lister
The oscilloscope's search capability lets you search for (and mark) certain types of
CAN data in the Lister. You can use the [Navigate] key and controls to navigate
through the marked rows.
1 With CAN selected as the serial decode mode, press [Search] .
2 In the Search Menu, press the Search softkey; then, turn the Entry knob to select
Serial 1 or Serial 2 on which the CAN signal is being decoded.
3 Press Search for ; then, select from these options:
• Frame ID — Finds remote or data frames matching the specified ID.
• Data Frame ID — Finds data frames matching the specified ID.
• Data Frame ID and Data — Finds data frames matching the specified ID and
data.
• Remote Frame ID — Finds remote frames with the specified ID.
• Error Frame — Finds CAN active error frames.
• Acknowledge Error — Finds the acknowledge bit if the polarity is incorrect.
• Form Error — Finds reserved bit errors.
• Stuff Error — Finds 6 consecutive 1s or 6 consecutive 0s, while in a non-error
or non overload frame.
• CRC Field Error — Finds when the calculated CRC does not match the
transmitted CRC.