static void txTaskFunction(UArg arg0, UArg arg1)
{
    uint32_t time;
    RF_Params rfParams;
    RF_Params_init(&rfParams);

    while(1)
    {
        Semaphore_pend(semTxHandle, BIOS_WAIT_FOREVER);

        uint8_t j=0;
        static uint8_t veri[]="0123456789\r\n"; //12 karakter
        static uint8_t packet[PAYLOAD_LENGTH];

        uint8_t i;

        for (i = 0; i < PAYLOAD_LENGTH; i++)
        {
            //packet[i] = rand();
            packet[i] = veri[j];
            j++;
            if(j==12) //12 kARAKTER
            {
                j=0;
            }
        }
        RF_cmdPropTx.pktLen = 12;                                                                                           
        RF_cmdPropTx.pPkt = packet;                                                                                         
        RF_cmdPropTx.startTrigger.triggerType = TRIG_ABSTIME;                                                              
        RF_cmdPropTx.startTrigger.pastTrig = 1;                                                                           

        if (!rfHandle){                                                                                                     
            /* Request access to the radio */
            rfHandle = RF_open(&rfObject, &RF_prop, (RF_RadioSetup*)&RF_cmdPropRadioDivSetup, &rfParams);                  

            /* Set the frequency */
            RF_postCmd(rfHandle, (RF_Op*)&RF_cmdFs, RF_PriorityNormal, NULL, 0);
        }

        /* Get current time */
        time = RF_getCurrentTime();

        /* Set absolute TX time to utilize automatic power management */
        time += PACKET_INTERVAL;
        RF_cmdPropTx.startTime = time;

        /* Send RF_Data.Raw_Buffer */
        rfTxCmd = RF_postCmd(rfHandle, (RF_Op*)&RF_cmdPropTx, RF_PriorityNormal, NULL, 0);

        RF_EventMask result = RF_pendCmd(rfHandle, rfTxCmd, (RF_EventCmdDone | RF_EventCmdError | RF_EventLastCmdDone |
                RF_EventCmdAborted | RF_EventCmdCancelled | RF_EventCmdStopped));

        if (!(result & RF_EventLastCmdDone))
        {
            /* Error */
            while(1);
        }

        PIN_setOutputValue(pinHandle, Board_PIN_LED0,!PIN_getOutputValue(Board_PIN_LED0));
        memset(packet, 0, sizeof(packet)); //clear buffer

        Semaphore_post(semRxHandle);
    }
}