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MSelv.3
MSelv.3
Associate II
Jul 29, 2021 7:48 AM UTC
Question

In ST , is there any external CAN FD controller with SPI interface?

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    5 replies

    Peter BENSCH
    Peter BENSCH
    ST Technical Moderator
    Jul 29, 2021 11:25 AM UTC

    STMicroelectronics does not currently have an independent CAN CD controller in its portfolio.

    Regards

    /Peter

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    MSelv.3
    MSelv.3Author
    Associate II
    Jul 29, 2021 1:58 PM UTC

    ok. Thank you Peter Bensch

    Ozone
    Ozone
    Principal
    Jul 29, 2021 12:26 PM UTC

    I think not, and I think none will come.

    CAN is a multi-master bus, and thus does not play well with SPI, a strict master-slave system.

    Even assuming the external CAN controller can work as SPI master.

    MSelv.3
    MSelv.3Author
    Associate II
    Jul 29, 2021 1:58 PM UTC

    Thank you Ozone

    Tesla DeLorean
    Tesla DeLorean
    Guru
    Jul 29, 2021 3:40 PM UTC

    Couldn't you just use an STM32H7 or whatever, and implement it yourself?

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