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DCAN Peripheral MsgLst bit clearing logic

Pashan
Intellectual 715 points

Hello Support,

I am trying to understand how to clear the MsgLst bit in the Message Object for DCAN.

I am assuming that IFx register contains MsgLst bit field. And I should target a particular Message Object with IFx register WRITE Access.

Question is should I set MsgLst bit as 1 or 0 in order to CLEAR/RESET the MsgLst bit of a particular Message Object.

Thank you.

Regards

Pashan

  • 0
    TI__Intellectual 2285 points

    Pahan,

    Yes the IFx Register contains a MsgLst field. Are you trying to configure the Message Object to transmit or to receive ?

    Regards,

    Pratip

     

  • 0 in reply to Pratip Kumar
    TI__Intellectual 2285 points

    Pashan,

    If you are trying to configure the message object as transmit  you need not bother about MsgLst.

    If the message object is configured to receive, the MSGLst is a read only flag .

    Regards,

    Pratip

     

  • 0 in reply to Pratip Kumar
    Intellectual 715 points

    Hello Pratip,

    Yes, I am configuring the Message Object as Receive Message Object.

    If MsgLst bit is read-only for Received Messages, then how does it get cleared?

    I mean, under what conditions it will be cleared once set due to lost messages?

    Please explain.

    Also, it will be helpful if you please refer to the section number of spnu489b.pdf [TRM] for the relevant information related to clearing of MsgLst bit once set due to lost received messages.

    Thank you.

    Regards

    Pashan

     

  • 0 in reply to Pashan
    TI__Intellectual 2285 points

    Pashan,

    The MsgLst Bit may not automatically reset. You may try writing a 1 to clear it in privilege mode.

    Regards,

    Pratip