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TMS470MF06607: Message id and Mask of DCAN -- I want to send and receive all the messages

SHANKARNARAYAN PS
Intellectual 625 points
Part Number: TMS470MF06607
Other Parts Discussed in Thread: HALCOGEN

Hello,

Am trying to develop a CAN sniffer using the hercules board. For that I want to configure a perticular message box to recieve all the messages and transmit all the messages. How do I do this? What is the effective way to use all the available message box for this purpose? I am trying to sniff an extended ID (29 bit)

Regards,

Shankar

  • 0
    Expert 1995 points

    Here is what I suggest:

    Start with a HalCoGen project (HalCoGen intends DCAN to use unique Message Boxes for various DLC and ID, but there are user code changes that can be made).

    Create two Message Boxes (one for TX with DLC:0 and on for RX with DLC:8 and Mask:0) with extended ID (since Ext-ID is what you want).

    When you transmit, modify the DLC and CAN-ID to the values you want before the call to canTransmit.

    For RX, in canNotification, call canIsRxMessageArrived and test for DLC value and CAN-ID after calling canGetData.

  • 0 in reply to NeilBerry_at_Parker
    Intellectual 625 points
    Dear Parker,

    Thanks a lot for the lead. I will test this and verify the answer. Thanks again.

    Regards,
    Shankar