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TCAN1145-Q1: Data field matching wake-up

Ryker She
Expert 4320 points
Part Number: TCAN1145-Q1

Tool/software:

Hi expert,

For the data field matching wake-up of TCAN1145-Q1, is it possible to configure two specific bit positions to match simultaneously for wake-up? Additionally, is there a way to retrieve the data content of the CAN message that triggered the wake-up event? Thanks.

Best Regards,

Ryker

  • 0
    TI__Mastermind 27690 points

    Hi Ryker,

    Here is an app note for how partial networking works:
    https://www.ti.com/lit/an/slla521b/slla521b.pdf

    No, it is not possible to configure that way, it requires ID filed or ID filed + DLC match, please see 3.2 in the app note above. For the data filed match, it requires only one bit match to be a valid WUF, thus requiring two bits is not possible.

    There is no such a register to store CAN message, my understanding is the MCU will be able to store that, but it's a feature on the CAN transceiver.

    Regards,

    Sean