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prmartinuk's avatar
prmartinuk
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1 month ago
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Cyclone V CAN triple sampling

Does anyone know if the CAN controller on the Cyclone V implements the optional CAN feature of triple sampling?

There is no mention of it in the handbook or in the register definitions, so I am assuming that it just does the standard CAN functionality of single sampling.
But I wasn't sure if under the hood it was doing anything more complicated as some CAN controllers automatically do triple sampling at lower baud rates.

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4 Replies

  • StefanG_Altera1's avatar
    StefanG_Altera1
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    1 month ago

    Hi,

    I cannot presently point to a Cyclone V HPS register definition or document explicitly proving triple sampling is implemented/enabled in Cyclone V HPS CAN. I will further check internally.

    Have you tried "$ ip -details link show can0"?

    If the Linux driver exposes: triple-sampling on/off

    then the underlying controller/driver combination should support it.