AURIX™ MCU: Why does CAN FD work on the bench but not in the vehicle? – KBA235525

AURIX™ MCU: Why does CAN FD work on the bench but ...

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The transmitter delay compensation offset is the most common cause of this. For an example of a 2-Mbps CAN FD network, the typical value is 400 ns.

Check the “NTDCRx.TDCO” setting for the AURIX™ TC2xx family and the “TDCRi.TDCO” setting for the AURIX™ TC3xx family.

For more details, see the following sections of the User’s manual:

For AURIX™ TC2xx devices: “Controller Area Network Controller (MultiCAN+)” section
For AURIX™ TC3xx devices: “CAN Interface (MCMCAN)” section

Note: This KBA applies to the following series of AURIX™ MCUs:

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