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CAN driver question ...

F D

Hi,

I am using the RL-ARM provided CAN driver. I have the need to configure receive messages after I started the CAN driver. I use "CAN_rx_object" to configure new receive objects (CAN-controller 2) and this part is working. I noticed that after using "CAN_rx_object" in a running CAN system, the CAN-controller 1 is impacted and generates errors. I have a CANOpen driver handling the traffic on the CAN-controller 1.

Here are my questions:

- Can I use "CAN_rx_object" after I started the CAN controller (the documentation does not provide further information)?

- Why is CAN-controller 1 impacted if CAN-controller 2 is reconfigured?

Thank you - Frank!

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  • 0 in reply to F D

    Hi Frank,

    if you do not need to use Acceptance filter then it is a better solution that you do not call functions CAN_rx_object as that function switches acceptance filter to be used.
    Function CAN_init initializes acceptance filter as not used.

    There is no point in calling CAN_rx_object function if you are not using hardware filtering (acceptance filter).

    Milorad

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  • 0 in reply to F D

    Hi Frank,

    if you do not need to use Acceptance filter then it is a better solution that you do not call functions CAN_rx_object as that function switches acceptance filter to be used.
    Function CAN_init initializes acceptance filter as not used.

    There is no point in calling CAN_rx_object function if you are not using hardware filtering (acceptance filter).

    Milorad

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