From Calimero to eibd library

[Blr. Dev Tools]

Hi,

I tested Calimero API for to send frames to a konnex installation, it works.
Now I'm testing eibclient lib for to write my in c, but i don't have the same result.
this is the Calimero code:

            CEMI_Connection tunnel = new CEMI_Connection(
                new InetSocketAddress("192.168.1.201",
                    EIBNETIP_Constants.EIBNETIP_PORT_NUMBER),
                new TunnellingConnectionType());
           
            PointPDUXlator dimVal = PDUXlatorList.getPointPDUXlator(
                PDUXlatorList.TYPE_BOOLEAN[0],
                PointPDUXlator_Boolean.DPT_BOOL[0]);

            dimVal.setServiceType(PointPDUXlator.A_GROUPVALUE_WRITE);
            dimVal.setASDUfromString("True");
       
            CEMI_L_DATA message0 = new CEMI_L_DATA(
                CEMI_L_DATA.MC_L_DATAREQ,
                new EIB_Address(),
                new EIB_Address("0/0/1"),
                dimVal.getAPDUByteArray()
            );
            tunnel.sendFrame(message0,CEMI_Connection.WAIT_FOR_CONFIRM);

How to do the same using eibclient lib ?
This is the code that I'm using im my app (only  for testing).

    EIBConnection *con = EIBSocketRemote("192.168.1.201",6720);
    argv[0] = "0x1";

    if(!con){
        printf("Connection Failed.\n");
        return (EXIT_FAILURE);
    }

    eibaddr_t dest = readgaddr ("0/0/2");
    uchar buf[255] = { 0, 0x80 };
    int len = readBlock(buf + 2, sizeof(buf)-2,1,argv);
   
    if (EIBOpenT_Group (con, dest, 1) == -1){
        printf("EIBOpenT_Group failed.\n");
        return (EXIT_FAILURE);
    }
  
    len = EIBSendAPDU(con, 2 + len, buf);
    if (len == -1){
        printf("Request failed.\n");
    }
  
    EIBClose(con);
    return (EXIT_SUCCESS);

konnex installation recevie the message, but nothing happens.
When I send the message with calimero the log is: packet received from 0.0.0 to 0/0/2 value 0 129
When I send the message with eibdclient lib : packet received from 0.0.0 to 0/0/2 value 0 128 1

somebody can help me to understand ?
Thank you very much.

Andrea

[Martin Koegler]

There are two frame formats:

For datatypes up to 6 bits (groupswrite) and datatypes starting with 1 byte (groupwrite).

Please look at groupswrite.c in this case.

mfg Martin Kögler

[Blr. Dev Tools]

Hi Martin,

first of all thank you very much, this is my first project usign EIB, it was a emotion to turn on my first light !!! really thank you!
Now I'll try to change others parameters, e.g. light intensity or brightness, wow I can't see !

here the code for people that came from java using calimero. :]

    argv[0] = "0x0"; // change to 0x1 for to turn on the light
   
    EIBConnection *con = EIBSocketRemote("192.168.1.201",6720);
   
    if(!con){
        printf("Connection Failed.\n");
        return (EXIT_FAILURE);
    }
   
    eibaddr_t dest = readgaddr ("0/0/2"); // The group address
    uchar buf[3] = { 0, 0x80 };
   
    buf[1] |= readHex (argv[0]) & 0x3f;
    if (EIBOpenT_Group (con, dest, 1) == -1){
        printf("EIBOpenT_Group failed.\n");
        return (EXIT_FAILURE);
    }
   
    int len = EIBSendAPDU (con, 2, buf);
    if (len == -1){
        printf("Request failed.\n");
    }

    EIBClose(con);
    return (EXIT_SUCCESS);

what is the meaning of 0x3f flag in line <buf[1] |= readHex (argv[0]) & 0x3f;> ?

Andrea

[Martin Koegler]

The frame format only allows 6 data bits, so "AND 0x3f" masks out other bits.

mfg Martin Kögler

[Blr. Dev Tools]

Thanks Martin.