Exemplo n.º 1
0
/**
 ****************************************************************************************
 * @brief conditionally_run_radio_cals(). Runs conditionally (time + temperature) RF and coarse calibration.                                                                                                                                                                                                                                                                                 ltime and temp changes) RF and coarse calibration  
 *
 * @return void 
 ****************************************************************************************
 */
void conditionally_run_radio_cals(void) 
{
    uint16_t count, count_diff;
    uint8_t force_rf_cal = 0;
    bool rf_cal_stat;
    
    uint32_t current_time = lld_evt_time_get();    
    
    if (current_time < last_temp_time)
    { 
        last_temp_time = 0;
    }

    if (force_rf_cal)
    {
        force_rf_cal = 0;
        
        last_temp_time = current_time;
        last_temp_count = get_rc16m_count();
#if LUT_PATCH_ENABLED
        pll_vcocal_LUT_InitUpdate(LUT_UPDATE);    //Update pll look up table
#endif          
        rf_cal_stat = rf_calibration();
        if ( rf_cal_stat == false)
            force_rf_cal = 1;        

        return;
    }
    
    if ( (current_time - last_temp_time) >= 3200) //2 sec
    {    
        last_temp_time = current_time;
        count = get_rc16m_count();                  // Estimate the RC16M frequency
        
        if (count > last_temp_count)
            count_diff = count - last_temp_count;
        else
            count_diff = last_temp_count - count ;
        
        if (count_diff >= 24)// If corresponds to 5 C degrees difference
        { 

            // Update the value of last_count
            last_temp_count = count;
#if LUT_PATCH_ENABLED
             pll_vcocal_LUT_InitUpdate(LUT_UPDATE);    //Update pll look up table
#endif            
            rf_cal_stat = rf_calibration();
            
            if ( rf_cal_stat == false)
                force_rf_cal = 1;         // Perform the readio calibrations

        }
    }
}
Exemplo n.º 2
0
void rf_init_func(struct rwip_rf_api *api)
{

    uint32 tmp32 = 0;
    uint8 idx = 0;
    uint8 temp_freq_tbl[EM_BLE_FREQ_TABLE_LEN];

   // Initialize the RF driver API structure
    api->reg_rd = rf_reg_rd;
    api->reg_wr = rf_reg_wr;
    api->txpwr_dbm_get = rf_txpwr_dbm_get;

    //api->txpwr_max = RPL_POWER_MAX;
    api->sleep = rf_sleep;
    api->reset = rf_reset;
    #ifdef CFG_BLE
    api->isr = RADIOCNTL_Handler;
    api->force_agc_enable = rf_force_agc_enable;
    #endif //CFG_BLE

    api->rssi_convert = rf_rssi_convert;
    
    #ifdef CFG_BT
    api->txpwr_inc = rf_txpwr_inc;
    api->txpwr_dec = rf_txpwr_dec;
    api->txpwr_epc_req = rf_txpwr_epc_req;
    api->txpwr_cs_get = rf_txpwr_cs_get;
    
    api->rssi_high_thr = (uint8_t)RPL_RSSI_20dB_THRHLD;
    api->rssi_low_thr = (uint8_t)RPL_RSSI_60dB_THRHLD;
    api->rssi_interf_thr = (uint8_t)RPL_RSSI_70dB_THRHLD;
    #ifdef CFG_BTCORE_30
    api->wakeup_delay = RPL_WK_UP_DELAY;
    #endif //CFG_BTCORE_30
    api->skew = RPL_RADIO_SKEW;
    #endif //CFG_BT

	// CLK_FREQ_TRIM_REG initialization was moved to main_func() in arch_main.c
	// The initialization of this register is done by the Boot ROM code if a valid
	// value has been written to the corresponding position in the OTP header by
	// the customer.
	// main_func() will write this register with a default value and the customer
	// must remove this code when he has written the OTP header.

    SetBits32(&tmp32, RTRIP_DELAY, 7);    
    SetBits32(&tmp32, TXPWRDN,     0x5);  
	SetBits32(&tmp32, RXPWRUP,     RXPWRUP_VAL);  
    SetBits32(&tmp32, TXPWRUP,     TXPWRUP_VAL);
    SetWord32(BLE_RADIOPWRUPDN_REG,tmp32);   

    SetBits32(BLE_RADIOCNTL0_REG, DPCORR_EN, 0);  //THIS MAY NOT BE '1', THEN WE MISS 12 BITS IN THE SYNCWORD DURING A RX BURST
    SetBits32(BLE_RADIOCNTL1_REG, XRFSEL, 3);
    SetBits32(BLE_CNTL2_REG, SW_RPL_SPI ,0);
    SetBits32(BLE_CNTL2_REG, BB_ONLY,0);    	

    while(idx < EM_BLE_FREQ_TABLE_LEN)    
    {
		temp_freq_tbl[idx] = idx ;
		idx++;
    }

    em_ble_burst_wr(&temp_freq_tbl[0], EM_BLE_FT_OFFSET, EM_BLE_FREQ_TABLE_LEN);				
	rf_regs();
    
    last_temp_count = get_rc16m_count();
    
#if LUT_PATCH_ENABLED
    pll_vcocal_LUT_InitUpdate(LUT_INIT);    
#endif

	rf_calibration();		
}