LLESTAT = 0x04;
TXPOWER = 0xE5;
TXCTRL    = 0x79;       // Change DAC current step from '110' to '111'.
ACOMPQS   = 0x16;       // Finetune Q phase relative I (i.e. skewness).
TXFILTCFG = 0x07;       // Set Tx filter bandwidth
FRMCTRL0 = 0x41;
MDMCTRL0 = 0x51;
MDMCTRL1 = 0x48;
MDMCTRL3 = 0x63;
ADCTEST0 = 0x66;
MDMCTRL2 = 0xF7;
PRF.PKT_CONF.AGC_EN = 0;
PRF.PKT_CONF.START_TONE = 0;
MDMTEST0 = 0x01;
BSP_MODE = 0x02;
BSP_P0= 0x00;
BSP_P1= 0x00;
BSP_P2= 0x05;
BSP_P3= 0x80;
PRF.CRC_INIT[0]= 0x00;
PRF.CRC_INIT[1]= 0x00;
PRF.CRC_INIT[2]= 0xFF;
PRF.CRC_INIT[3]= 0xFF;
PRF.CRC_LEN = 2;
SW_CONF = 0x00;
SW0 = 0x91;
SW1 = 0xD3;
SW2 = 0x91;
SW3 = 0xD3;
MDMTEST1 = 0x2F;
FREQCTRL = 0x3E;          // Freq. Setting 2440 MHz
BSP_W = 0xE5;
PRF_TASK_CONF = 0x01;
PRF_W_INIT = 0x80;
RFRAMCFG = 0x00;
//**************** RF Setting for CC2543 Code Part **************************
// Enable radio in default beacon mode.
    LLESTAT = 0x04;
    halRfDisableRadio(FORCE);    
    halRfInit();// TXPOWER = 0xE5;    
    halRfConfig(MSK_250kbps, TX, 32, PKT_CONF_NRF);
    halRfSetCrc(CRC_16);
    halRfSetSyncWord(SYNCWORD, 0);
    halRfSetTxAddress(0xEF, ADDR_CONF_TX_AUTO, 16);
    PRF.ADDR_ENTRY[0].CONF.REUSE = 1;
    
    MDMTEST1 = 0x2F;
    halRfSetFrequency(2440);
    halRfEnableRadio();
    
    // Seed pseudo-random generator.
    RNDL = 0x00;
    RNDL = 0xFF;

    // Enable RF interrupt.
    halRfEnableInterrupt(RFIRQF1_TASKDONE);

    // Enable global interrupt.
    halIntOn();
    BSP_W = 0xE5;
    PRF_TASK_CONF = 0x01;
    PRF_W_INIT = 0x80;
    RFRAMCFG = 0x00;
    // Load packet payload.
    halRfLoadPERPacketPayload(LENGTH, 0);
    
    // Set radio to transmit packets every 10 ms.
    halRfPacketTxInterval(VALUE_10MS_IN_1US_UNITS);

    while(1) {
        // Start transmitter.
        halRfStartTx();

        // Wait for TASKDONE and halt CPU (PM0) until task is completed.
        while (!(rfirqf1 & RFIRQF1_TASKDONE)) {
#if(POWER_SAVING)
            halSleepEnterPowerMode(CPU_HALT);
#endif
        P1_0 = 0;
        halMcuWaitMs(50);
        P1_0 = 1;
        halMcuWaitMs(50);
        }