Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

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 not in the vehicle? – KBA235525

MohammedA_41
Community Manager
Community Manager First comment on KBA 250 replies posted First like received
Community Manager

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

Version: **

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:

  • AURIX™ TC2xx series
  • AURIX™ TC3xx series
0 Likes
Contributors