use can in extended and default mode at the same time?

    Hello,
    try to evaluete fmt-flag while receive/send use extended frames(?).

    F&S Elektronik Systeme GmbH
    As this is an international forum, please try to post in English.
    Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.

    now i'm using this code:


    res = _CP.GetBaudrate(out baudrate);


    if (baudrate != 250000) throw new Exception("Baudrate was set to " + baudrate + " instead of 250000");


    //pCan.SetCommand(CanPort.CanCommand.ENTER_STANDBY)


    res = _CP.SetDefaultFrameFormat(FS.NetDCU.CanPort.CanTransmitFormat.EXTENDED);


    if (res != 0) throw new Exception("Error setting default frame format");


    res = _CP.SetCanMode(FS.NetDCU.CanPort.CanMode.CAN_2_0_A);


    if (res != 0) throw new Exception("Error setting can mode");


    _canFilter.code = 0; // no filter for this moment


    _canFilter.mask = 0xFFFFFFFF;


    res = _CP.WriteAcceptanceFilter(ref _canFilter);


    if (res != 0) throw new Exception("Error setting acceptance filter");


    res = _CP.Init();


    if (res != 0) throw new Exception("Error initializing can bus");


    CanPort.CanAcceptanceFilter _canFilterRet;


    res = _CP.ReadAcceptanceFilter(out _canFilterRet);


    if (res != 0) throw new Exception("Error reading acceptance filter");


    _canMask = CanPort.CanEventFlags.RECEIVED;


    res = _CP.SetCommMask(_canMask);


    if (res != 0) throw new Exception("Error setting can RXmask");


    CanPort.CommTimeouts timeouts = new CanPort.CommTimeouts();


    timeouts.ReadIntervalTimeout = 10;


    _CP.SetCommTimeouts(ref timeouts);




    but how can i say i want to listen to both standard AND extended messages?

    The correct way is to open two file handles to the CAN port. And define two different acceptance filters for them, one file handle with a standard format acceptance filter and one file handle with an extended format acceptance filter. Then each acceptance filter will receive the frames of its own kind.


    Your F&S Support Team

    F&S Elektronik Systeme GmbH
    As this is an international forum, please try to post in English.
    Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.

    if i make 2 handles to the same can port and configure it with defferent filter and format, i can't recieve anything...
    so this doesn't seem to work...


    private void Initialize()


    {


    int res = 0;


    _CP = new CanPort("CID2:", FS.NetDCU.CanPort.CanAccess.READ_WRITE);
    _CP2 = new CanPort("CID2:", FS.NetDCU.CanPort.CanAccess.READ_WRITE);


    _CP.HandleErrorsViaReturn(true);


    res = _CP.SetBaudrate(250000);


    if (res != 0) throw new Exception("Error setting canbus baudrate to 250000!");


    uint baudrate;


    res = _CP.GetBaudrate(out baudrate);


    if (baudrate != 250000) throw new Exception("Baudrate was set to " + baudrate + " instead of 250000");


    //pCan.SetCommand(CanPort.CanCommand.ENTER_STANDBY)


    res = _CP.SetDefaultFrameFormat(FS.NetDCU.CanPort.CanTransmitFormat.STANDARD); // verschillend bij extended


    if (res != 0) throw new Exception("Error setting default frame format");


    res = _CP.SetCanMode(FS.NetDCU.CanPort.CanMode.CAN_2_0_A); // verschillend bij extended


    if (res != 0) throw new Exception("Error setting can mode");


    _canFilter.code = 0; // no filter for this moment


    _canFilter.mask = 0xFFFFFFFF;


    res = _CP.WriteAcceptanceFilter(ref _canFilter);


    if (res != 0) throw new Exception("Error setting acceptance filter");


    res = _CP.Init();


    if (res != 0) throw new Exception("Error initializing can bus");


    CanPort.CanAcceptanceFilter _canFilterRet;


    res = _CP.ReadAcceptanceFilter(out _canFilterRet);


    if (res != 0) throw new Exception("Error reading acceptance filter");


    _canMask = CanPort.CanEventFlags.RECEIVED;


    res = _CP.SetCommMask(_canMask);


    if (res != 0) throw new Exception("Error setting can RXmask");


    CanPort.CommTimeouts timeouts = new CanPort.CommTimeouts();


    timeouts.ReadIntervalTimeout = 10;


    _CP.SetCommTimeouts(ref timeouts);


    //////_CP2


    _CP2.HandleErrorsViaReturn(true);


    res = _CP.SetBaudrate(250000);


    if (res != 0) throw new Exception("Error setting canbus baudrate to 250000!");


    uint baudrate2;


    res = _CP2.GetBaudrate(out baudrate2);


    if (baudrate2 != 250000) throw new Exception("Baudrate was set to " + baudrate2 + " instead of 250000");


    //pCan.SetCommand(CanPort.CanCommand.ENTER_STANDBY)


    res = _CP2.SetDefaultFrameFormat(FS.NetDCU.CanPort.CanTransmitFormat.EXTENDED);


    if (res != 0) throw new Exception("Error setting default frame format");


    res = _CP2.SetCanMode(FS.NetDCU.CanPort.CanMode.CAN_2_0_B);


    if (res != 0) throw new Exception("Error setting can mode");


    _canFilter2.code = 0; // no filter for this moment


    _canFilter2.mask = 0; //0xFFFFFFFF;


    res = _CP2.WriteAcceptanceFilter(ref _canFilter2);


    if (res != 0) throw new Exception("Error setting acceptance filter");


    res = _CP2.Init();


    if (res != 0) throw new Exception("Error initializing can bus");


    CanPort.CanAcceptanceFilter _canFilterRet2;


    res = _CP2.ReadAcceptanceFilter(out _canFilterRet2);


    if (res != 0) throw new Exception("Error reading acceptance filter");


    _canMask2 = CanPort.CanEventFlags.RECEIVED;


    res = _CP2.SetCommMask(_canMask2);


    if (res != 0) throw new Exception("Error setting can RXmask");


    CanPort.CommTimeouts timeouts2 = new CanPort.CommTimeouts();


    timeouts2.ReadIntervalTimeout = 10;


    _CP2.SetCommTimeouts(ref timeouts2);



    }





    What is wrong in my code?
    the init of _cp2 breaks _cp ...


    kind regards