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Original question:

TDA4VM: CAN

TDA4VM: About how to config a CAN transceiver phy by use CAN bus driver.

Murphy Bevan
Intellectual 270 points
Part Number: TDA4VM


Hi,

TI support team.

We used PSDKLA_8.1 released. Custom board planning to use a CAN transceiver(TJA1153ATK chip), Need to config the chip through CAN bus.

But can not  figure out how to modify the code. Please help me to understand it.

Best Regards

Murphy.

  • 0
    Intellectual 270 points

    Hi

    By the way, Is there any instance can be refered to?

    Regards

    Murphy.

  • 0 in reply to Murphy Bevan
    TI__Guru* 77904 points

    Hi Murphy,

    The configuration for the transceiver can be added to the A72 Linux Device Tree. The CAN transceivers are simple and hence a dedicated driver should not be needed.

    You can take a look at the reference in the SDK at board-support/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts. Look at the mcu_mcan0, mcu_mcan1, main_mcan0 or main_mcan2 node's "phys" property.

    The datasheet for you CAN transceiver TJA1153ATK along with the custom board schematics can be used and these nodes can be updated accordingly.

    Regards

    Karan