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TCAN1042V-Q1: CAN vs CAN FD and Transmitter Delay Compensation

Betty Guo
Expert 7300 points
Part Number: TCAN1042V-Q1

Hi team,

customer use TCAN1042 with classic CAN, now they need upgrate to CAN FD. we have belwo questions need your confirm:

1. does the hardware or components need to be change when move to CAN FD from CAN. for example common mode inductor? below is scheamtic, can they replace CAN FD part directly?

2. For CAN FD, what's the function of transmitter Delay Compensation(TDC), is it realize in CAN FD device or MCU? how to configur it?

thank you.

  • 0
    TI__Genius 15345 points

    Hi Betty,

    Would you be able to upload a higher resolution schematic? I can't read the values of most of the parts.

    The TCAN1042 supports CAN FD up to 2Mbps so if that is good enough for your application then no replacing would be necessary. If you would like a faster data rate then obviously a new part would be needed. Depending on your specifications we can help you find a different part.

    Transmitter Delay Compensation allows your device to transmit data where the bit time is shorter than the transmitter delay. It is implemented in the CAN FD controller. Typically if your device has this you would just enable it by writing to a register.

    Best,

    Chris