Driver for the SX1272 RF Transceiver

Dependents:   LORA-SX1272MB2xAS-PP mDot_Semtech_LoRaWAN_Stack LoRaWAN-demo-72_mdotIKS01A1 lora-project ... more

Files at this revision

API Documentation at this revision

Comitter:
mluis
Date:
Mon Apr 24 09:26:08 2017 +0000
Parent:
2:cd1093b6676f
Commit message:
WARNING: Radio API timings changed from micro-seconds to milliseconds; ; Synchronized with https://github.com/Lora-net/LoRaMac-node git revision e506c246652fa44c3f24cecb89d0707b49ece739

Changed in this revision

enums/enums.h Show annotated file Show diff for this revision Revisions of this file
radio/radio.h Show annotated file Show diff for this revision Revisions of this file
registers/sx1272Regs-Fsk.h Show annotated file Show diff for this revision Revisions of this file
sx1272/sx1272-hal.cpp Show annotated file Show diff for this revision Revisions of this file
sx1272/sx1272-hal.h Show annotated file Show diff for this revision Revisions of this file
sx1272/sx1272.cpp Show annotated file Show diff for this revision Revisions of this file
sx1272/sx1272.h Show annotated file Show diff for this revision Revisions of this file
--- a/enums/enums.h	Wed Feb 17 09:17:18 2016 +0000
+++ b/enums/enums.h	Mon Apr 24 09:26:08 2017 +0000
@@ -64,6 +64,7 @@
     bool     IqInverted;
     bool     RxContinuous;
     uint32_t TxTimeout;
+    uint32_t RxSingleTimeout;
 }RadioFskSettings_t;
 
 /*!
@@ -101,6 +102,7 @@
     bool     IqInverted;
     bool     RxContinuous;
     uint32_t TxTimeout;
+    bool     PublicNetwork;
 }RadioLoRaSettings_t;
 
 /*!
--- a/radio/radio.h	Wed Feb 17 09:17:18 2016 +0000
+++ b/radio/radio.h	Mon Apr 24 09:26:08 2017 +0000
@@ -57,7 +57,6 @@
      * \param [IN] currentChannel   Index number of the current channel
      */
     void ( *FhssChangeChannel )( uint8_t currentChannel );
-
     /*!
      * @brief CAD Done callback prototype.
      *
@@ -89,35 +88,30 @@
     //-------------------------------------------------------------------------
     //                        Pure virtual functions
     //-------------------------------------------------------------------------
-
     /*!
      * @brief Initializes the radio
      *
      * @param [IN] events Structure containing the driver callback functions
      */
     virtual void Init( RadioEvents_t *events ) = 0;
-
     /*!
      * @brief Return current radio status
      *
      * @param status Radio status.[RF_IDLE, RF_RX_RUNNING, RF_TX_RUNNING]
      */
     virtual RadioState GetStatus( void ) = 0; 
-
     /*!
      * @brief Configures the radio with the given modem
      *
      * @param [IN] modem Modem to be used [0: FSK, 1: LoRa] 
      */
     virtual void SetModem( RadioModems_t modem ) = 0;
-
     /*!
      * @brief Sets the channel frequency
      *
      * @param [IN] freq         Channel RF frequency
      */
     virtual void SetChannel( uint32_t freq ) = 0;
-    
     /*!
      * @brief Sets the channels configuration
      *
@@ -128,7 +122,6 @@
      * @retval isFree         [true: Channel is free, false: Channel is not free]
      */
     virtual bool IsChannelFree( RadioModems_t modem, uint32_t freq, int16_t rssiThresh ) = 0;
-    
     /*!
      * @brief Generates a 32 bits random value based on the RSSI readings
      *
@@ -140,7 +133,6 @@
      * @retval randomValue    32 bits random value
      */
     virtual uint32_t Random( void )= 0;
-    
     /*!
      * @brief Sets the reception parameters
      *
@@ -162,8 +154,8 @@
      * @param [IN] preambleLen  Sets the Preamble length ( LoRa only )
      *                          FSK : N/A ( set to 0 )
      *                          LoRa: Length in symbols ( the hardware adds 4 more symbols )
-     * @param [IN] symbTimeout  Sets the RxSingle timeout value ( LoRa only )
-     *                          FSK : N/A ( set to 0 )
+     * @param [IN] symbTimeout  Sets the RxSingle timeout value
+     *                          FSK : timeout number of bytes
      *                          LoRa: timeout in symbols
      * @param [IN] fixLen       Fixed length packets [0: variable, 1: fixed]
      * @param [IN] payloadLen   Sets payload length when fixed lenght is used
@@ -183,7 +175,6 @@
                                uint8_t payloadLen,
                                bool crcOn, bool freqHopOn, uint8_t hopPeriod,
                                bool iqInverted, bool rxContinuous ) = 0;
-    
     /*!
      * @brief Sets the transmission parameters
      *
@@ -218,7 +209,6 @@
                               uint8_t coderate, uint16_t preambleLen,
                               bool fixLen, bool crcOn, bool freqHopOn,
                               uint8_t hopPeriod, bool iqInverted, uint32_t timeout ) = 0;
-    
     /*!
      * @brief Checks if the given RF frequency is supported by the hardware
      *
@@ -226,7 +216,6 @@
      * @retval isSupported [true: supported, false: unsupported]
      */
     virtual bool CheckRfFrequency( uint32_t frequency ) = 0;
-    
     /*!
      * @brief Computes the packet time on air for the given payload
      *
@@ -237,8 +226,7 @@
      *
      * @retval airTime        Computed airTime for the given packet payload length
      */
-    virtual double TimeOnAir ( RadioModems_t modem, uint8_t pktLen ) = 0;
-    
+    virtual uint32_t TimeOnAir ( RadioModems_t modem, uint8_t pktLen ) = 0;
     /*!
      * @brief Sends the buffer of size. Prepares the packet to be sent and sets
      *        the radio in transmission
@@ -247,43 +235,44 @@
      * @param [IN]: size       Buffer size
      */
     virtual void Send( uint8_t *buffer, uint8_t size ) = 0;
-    
     /*!
      * @brief Sets the radio in sleep mode
      */
     virtual void Sleep( void ) = 0;
-    
     /*!
      * @brief Sets the radio in standby mode
      */
     virtual void Standby( void ) = 0;
-    
     /*!
      * @brief Sets the radio in CAD mode
      */
     virtual void StartCad( void ) = 0;
-    
     /*!
      * @brief Sets the radio in reception mode for the given time
      * @param [IN] timeout Reception timeout [us]
      *                     [0: continuous, others timeout]
      */
     virtual void Rx( uint32_t timeout ) = 0;
-    
     /*!
      * @brief Sets the radio in transmission mode for the given time
      * @param [IN] timeout Transmission timeout [us]
      *                     [0: continuous, others timeout]
      */
     virtual void Tx( uint32_t timeout ) = 0;
-    
+    /*!
+     * @brief Sets the radio in continuous wave transmission mode
+     *
+     * @param [IN]: freq       Channel RF frequency
+     * @param [IN]: power      Sets the output power [dBm]
+     * @param [IN]: time       Transmission mode timeout [s]
+     */
+    virtual void SetTxContinuousWave( uint32_t freq, int8_t power, uint16_t time ) = 0;
     /*!
      * @brief Reads the current RSSI value
      *
      * @retval rssiValue Current RSSI value in [dBm]
      */
     virtual int16_t GetRssi ( RadioModems_t modem ) = 0;
-    
     /*!
      * @brief Writes the radio register at the specified address
      *
@@ -291,7 +280,6 @@
      * @param [IN]: data New register value
      */
     virtual void Write ( uint8_t addr, uint8_t data ) = 0;
-    
     /*!
      * @brief Reads the radio register at the specified address
      *
@@ -299,7 +287,6 @@
      * @retval data Register value
      */
     virtual uint8_t Read ( uint8_t addr ) = 0;
-    
     /*!
      * @brief Writes multiple radio registers starting at address
      *
@@ -308,7 +295,6 @@
      * @param [IN] size   Number of registers to be written
      */
     virtual void Write( uint8_t addr, uint8_t *buffer, uint8_t size ) = 0;
-    
     /*!
      * @brief Reads multiple radio registers starting at address
      *
@@ -317,23 +303,20 @@
      * @param [IN] size Number of registers to be read
      */
     virtual void Read ( uint8_t addr, uint8_t *buffer, uint8_t size ) = 0;
-    
     /*!
-     * @brief Writes the buffer contents to the SX1276 FIFO
+     * @brief Writes the buffer contents to the Radio FIFO
      *
      * @param [IN] buffer Buffer containing data to be put on the FIFO.
      * @param [IN] size Number of bytes to be written to the FIFO
      */
     virtual void WriteFifo( uint8_t *buffer, uint8_t size ) = 0;
-
     /*!
-     * @brief Reads the contents of the SX1276 FIFO
+     * @brief Reads the contents of the Radio FIFO
      *
      * @param [OUT] buffer Buffer where to copy the FIFO read data.
      * @param [IN] size Number of bytes to be read from the FIFO
      */
     virtual void ReadFifo( uint8_t *buffer, uint8_t size ) = 0;
-    
     /*!
      * @brief Sets the maximum payload length.
      *
@@ -341,6 +324,14 @@
      * @param [IN] max        Maximum payload length in bytes
      */
     virtual void SetMaxPayloadLength( RadioModems_t modem, uint8_t max ) = 0;
+    /*!
+     * @brief Sets the network to public or private. Updates the sync byte.
+     *
+     * @remark Applies to LoRa modem only
+     *
+     * @param [IN] enable if true, it enables a public network
+     */
+    virtual void SetPublicNetwork( bool enable ) = 0;
 };
 
 #endif // __RADIO_H__
--- a/registers/sx1272Regs-Fsk.h	Wed Feb 17 09:17:18 2016 +0000
+++ b/registers/sx1272Regs-Fsk.h	Mon Apr 24 09:26:08 2017 +0000
@@ -375,7 +375,7 @@
 /*!
  * RegPaRamp
  */
-#define RF_PARAMP_LOWPNTXPLL_MASK                   0xE0
+#define RF_PARAMP_LOWPNTXPLL_MASK                   0xEF
 #define RF_PARAMP_LOWPNTXPLL_OFF                    0x10  // Default
 #define RF_PARAMP_LOWPNTXPLL_ON                     0x00
 
--- a/sx1272/sx1272-hal.cpp	Wed Feb 17 09:17:18 2016 +0000
+++ b/sx1272/sx1272-hal.cpp	Mon Apr 24 09:26:08 2017 +0000
@@ -14,6 +14,35 @@
 */
 #include "sx1272-hal.h"
 
+#if defined ( TARGET_MOTE_L152RC )
+/*
+       PD_2=0  PD_2=1
+op PaB  rfo     rfo
+0  4.6  18.5    27.0
+1  5.6  21.1    28.1
+2  6.7  23.3    29.1
+3  7.7  25.3    30.1
+4  8.8  26.2    30.7
+5  9.8  27.3    31.2
+6  10.7 28.1    31.6
+7  11.7 28.6    32.2
+8  12.8 29.2    32.4
+9  13.7 29.9    32.9
+10 14.7 30.5    33.1
+11 15.6 30.8    33.4
+12 16.4 30.9    33.6
+13 17.1 31.0    33.7
+14 17.8 31.1    33.7
+15 18.4 31.1    33.7
+*/
+//                           txpow:   0  1  2  3  4  5  6  7  8  9 10 11 12 13 14  15  16  17  18  19
+static const uint8_t PaBTable[20] = { 0, 0, 0, 0, 0, 1, 2, 3, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15 };
+
+//                           txpow:  20 21 22 23 24 25 26 27 28 29 30
+static const uint8_t RfoTable[11] = { 1, 1, 1, 2, 2, 3, 4, 5, 6, 8, 9 };
+
+#endif
+
 const RadioRegisters_t SX1272MB2xAS::RadioRegsInit[] = RADIO_INIT_REGISTERS_VALUE;
 
 SX1272MB2xAS::SX1272MB2xAS( RadioEvents_t *events,
@@ -30,13 +59,13 @@
 #if defined ( TARGET_MOTE_L152RC )
                             RfSwitchCntr1( rfSwitchCntr1 ),
                             RfSwitchCntr2( rfSwitchCntr2 ),
-                            PwrAmpCntr( PD_2 )               
+                            PwrAmpCntr( PD_2 )
 #elif defined ( TARGET_MTS_MDOT_F411RE )
                             TxCtl ( txctl ),
                             RxCtl ( rxctl )
 #else
                             AntSwitch( antSwitch ),
-                        #if( defined ( TARGET_NUCLEO_L152RE ) )
+                        #if( defined ( TARGET_NUCLEO_L152RE ) ) || defined ( TARGET_NUCLEO_L476RG )
                             Fake( D8 )
                         #else
                             Fake( A3 )
@@ -46,13 +75,13 @@
     this->RadioEvents = events;
 
     Reset( );
-    
+
     IoInit( );
-    
+
     SetOpMode( RF_OPMODE_SLEEP );
-    
+
     IoIrqInit( dioIrq );
-    
+
     RadioRegistersInit( );
 
     SetModem( MODEM_FSK );
@@ -60,8 +89,8 @@
     this->settings.State = RF_IDLE ;
 }
 
-SX1272MB2xAS::SX1272MB2xAS( RadioEvents_t *events ) 
-                        #if defined ( TARGET_NUCLEO_L152RE )
+SX1272MB2xAS::SX1272MB2xAS( RadioEvents_t *events )
+                        #if defined ( TARGET_NUCLEO_L152RE ) || defined ( TARGET_NUCLEO_L476RG )
                         :   SX1272( events, D11, D12, D13, D10, A0, D2, D3, D4, D5, A3, D9 ), // For NUCLEO L152RE dio4 is on port A3
                             AntSwitch( A4 ),
                             Fake( D8 )
@@ -73,7 +102,7 @@
                         #elif defined ( TARGET_MTS_MDOT_F411RE )
                         :   SX1272( events, LORA_MOSI, LORA_MISO, LORA_SCK, LORA_NSS, LORA_RESET, LORA_DIO0, LORA_DIO1, LORA_DIO2, LORA_DIO3, LORA_DIO4, LORA_DIO5 ),
                             TxCtl( LORA_TXCTL ),
-                            RxCtl( LORA_RXCTL )                    
+                            RxCtl( LORA_RXCTL )
                         #else
                         :   SX1272( events, D11, D12, D13, D10, A0, D2, D3, D4, D5, D8, D9 ),
                             AntSwitch( A4 ), 
@@ -83,16 +112,16 @@
     this->RadioEvents = events;
 
     Reset( );
-    
+
     boardConnected = UNKNOWN;
-    
+
     DetectBoardType( );
-    
+
     IoInit( );
-    
+
     SetOpMode( RF_OPMODE_SLEEP );
     IoIrqInit( dioIrq );
-    
+
     RadioRegistersInit( );
 
     SetModem( MODEM_FSK );
@@ -150,7 +179,7 @@
     nss = 1;    
     spi.format( 8,0 );   
     uint32_t frequencyToSet = 8000000;
-    #if( defined ( TARGET_NUCLEO_L152RE ) || defined ( TARGET_MOTE_L152RC ) ||  defined ( TARGET_LPC11U6X ) || defined ( TARGET_MTS_MDOT_F411RE ) )
+    #if( defined ( TARGET_NUCLEO_L152RE ) || defined ( TARGET_MOTE_L152RC ) || defined ( TARGET_NUCLEO_L476RG ) ||  defined ( TARGET_LPC11U6X ) || defined ( TARGET_MTS_MDOT_F411RE ) )
         spi.frequency( frequencyToSet );
     #elif( defined ( TARGET_KL25Z ) ) //busclock frequency is halved -> double the spi frequency to compensate
         spi.frequency( frequencyToSet * 2 );
@@ -162,18 +191,18 @@
 
 void SX1272MB2xAS::IoIrqInit( DioIrqHandler *irqHandlers )
 {
-#if( defined ( TARGET_NUCLEO_L152RE ) || defined ( TARGET_MOTE_L152RC ) ||  defined ( TARGET_LPC11U6X ) )
+#if( defined ( TARGET_NUCLEO_L152RE ) || defined ( TARGET_MOTE_L152RC ) || defined ( TARGET_NUCLEO_L476RG ) || defined ( TARGET_NUCLEO_L476RG ) ||  defined ( TARGET_LPC11U6X ) )
     dio0.mode( PullDown );
     dio1.mode( PullDown );
     dio2.mode( PullDown );
     dio3.mode( PullDown );
     dio4.mode( PullDown );
 #endif
-    dio0.rise( this, static_cast< TriggerMB2xAS > ( irqHandlers[0] ) );
-    dio1.rise( this, static_cast< TriggerMB2xAS > ( irqHandlers[1] ) );
-    dio2.rise( this, static_cast< TriggerMB2xAS > ( irqHandlers[2] ) );
-    dio3.rise( this, static_cast< TriggerMB2xAS > ( irqHandlers[3] ) );
-    dio4.rise( this, static_cast< TriggerMB2xAS > ( irqHandlers[4] ) );
+    dio0.rise( mbed::callback( this, static_cast< TriggerMB2xAS > ( irqHandlers[0] ) ) );
+    dio1.rise( mbed::callback( this, static_cast< TriggerMB2xAS > ( irqHandlers[1] ) ) );
+    dio2.rise( mbed::callback( this, static_cast< TriggerMB2xAS > ( irqHandlers[2] ) ) );
+    dio3.rise( mbed::callback( this, static_cast< TriggerMB2xAS > ( irqHandlers[3] ) ) );
+    dio4.rise( mbed::callback( this, static_cast< TriggerMB2xAS > ( irqHandlers[4] ) ) );
 }
 
 void SX1272MB2xAS::IoDeInit( void )
@@ -181,6 +210,80 @@
     //nothing
 }
 
+void SX1272MB2xAS::SetRfTxPower( int8_t power )
+{
+    uint8_t paConfig = 0;
+    uint8_t paDac = 0;
+
+    paConfig = Read( REG_PACONFIG );
+    paDac = Read( REG_PADAC );
+
+#if defined ( TARGET_MOTE_L152RC )
+    if( power > 19 )
+    {
+        paConfig = ( paConfig & RF_PACONFIG_PASELECT_MASK ) | RF_PACONFIG_PASELECT_RFO;
+        paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | RfoTable[power - 20];
+    }
+    else
+    {
+        paConfig = ( paConfig & RF_PACONFIG_PASELECT_MASK ) | RF_PACONFIG_PASELECT_PABOOST;
+        paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | PaBTable[power];
+    }
+#else
+    paConfig = ( paConfig & RF_PACONFIG_PASELECT_MASK ) | GetPaSelect( this->settings.Channel );
+
+    if( ( paConfig & RF_PACONFIG_PASELECT_PABOOST ) == RF_PACONFIG_PASELECT_PABOOST )
+    {
+        if( power > 17 )
+        {
+            paDac = ( paDac & RF_PADAC_20DBM_MASK ) | RF_PADAC_20DBM_ON;
+        }
+        else
+        {
+            paDac = ( paDac & RF_PADAC_20DBM_MASK ) | RF_PADAC_20DBM_OFF;
+        }
+        if( ( paDac & RF_PADAC_20DBM_ON ) == RF_PADAC_20DBM_ON )
+        {
+            if( power < 5 )
+            {
+                power = 5;
+            }
+            if( power > 20 )
+            {
+                power = 20;
+            }
+            paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | ( uint8_t )( ( uint16_t )( power - 5 ) & 0x0F );
+        }
+        else
+        {
+            if( power < 2 )
+            {
+                power = 2;
+            }
+            if( power > 17 )
+            {
+                power = 17;
+            }
+            paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | ( uint8_t )( ( uint16_t )( power - 2 ) & 0x0F );
+        }
+    }
+    else
+    {
+        if( power < -1 )
+        {
+            power = -1;
+        }
+        if( power > 14 )
+        {
+            power = 14;
+        }
+        paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | ( uint8_t )( ( uint16_t )( power + 1 ) & 0x0F );
+    }
+#endif
+    Write( REG_PACONFIG, paConfig );
+    Write( REG_PADAC, paDac );
+}
+
 uint8_t SX1272MB2xAS::GetPaSelect( uint32_t channel )
 {
     if( boardConnected == SX1272MB1DCS || boardConnected == MDOT_F411RE )
@@ -232,18 +335,18 @@
     this->PwrAmpCntr = 0;
 #elif defined ( TARGET_MTS_MDOT_F411RE )
     this->TxCtl = 0;
-    this->RxCtl = 0;    
+    this->RxCtl = 0;
 #else
     this->AntSwitch = 0;
 #endif
 }
 
-void SX1272MB2xAS::SetAntSw( uint8_t rxTx )
+void SX1272MB2xAS::SetAntSw( uint8_t opMode )
 {
-#if defined ( TARGET_MOTE_L152RC )
-    switch( this->currentOpMode )
+    switch( opMode )
     {
     case RFLR_OPMODE_TRANSMITTER:
+#if defined ( TARGET_MOTE_L152RC )
         if( ( Read( REG_PACONFIG ) & RF_PACONFIG_PASELECT_PABOOST ) == RF_PACONFIG_PASELECT_PABOOST )
         {
             this->RfSwitchCntr1 = 1;
@@ -254,77 +357,59 @@
             this->RfSwitchCntr1 = 0;
             this->RfSwitchCntr2 = 1;
         }
+#elif defined ( TARGET_MTS_MDOT_F411RE )
+        /* SKY13350 */
+        this->TxCtl = 1;
+        this->RxCtl = 0;
+#else
+        this->AntSwitch = 1;
+#endif
         break;
     case RFLR_OPMODE_RECEIVER:
     case RFLR_OPMODE_RECEIVER_SINGLE:
     case RFLR_OPMODE_CAD:
+#if defined ( TARGET_MOTE_L152RC )
         this->RfSwitchCntr1 = 1;
         this->RfSwitchCntr2 = 1;
+#elif defined ( TARGET_MTS_MDOT_F411RE )
+        /* SKY13350 */
+        this->TxCtl = 0;
+        this->RxCtl = 1;
+#else
+        this->AntSwitch = 0;
+#endif
         break;
     default:
+#if defined ( TARGET_MOTE_L152RC )
         this->RfSwitchCntr1 = 0;
         this->RfSwitchCntr2 = 0;
         this->PwrAmpCntr = 0;
+#elif defined ( TARGET_MTS_MDOT_F411RE )
+        /* SKY13350 */
+        this->TxCtl = 0;
+        this->RxCtl = 0;
+#else
+        this->AntSwitch = 0;
+#endif
         break;
     }
-#elif defined ( TARGET_MTS_MDOT_F411RE )
-    if( this->rxTx == rxTx )
-    {
-        //no need to go further
-        return;
-    }
-    
-    /* SKY13350 */
-    this->rxTx = rxTx;
-
-    // 1: Tx, 0: Rx
-    if( rxTx != 0 )
-    {
-        this->TxCtl = 1;
-        this->RxCtl = 0;   
-    }
-    else
-    {
-        this->TxCtl = 0;
-        this->RxCtl = 1;   
-    }    
-#else
-    if( this->rxTx == rxTx )
-    {
-        //no need to go further
-        return;
-    }
-
-    this->rxTx = rxTx;
-
-    // 1: Tx, 0: Rx
-    if( rxTx != 0 )
-    {
-        this->AntSwitch = 1;
-    }
-    else
-    {
-        this->AntSwitch = 0;
-    }
-#endif
 }
 
 bool SX1272MB2xAS::CheckRfFrequency( uint32_t frequency )
 {
-    //TODO: Implement check, currently all frequencies are supported
+    // Implement check. Currently all frequencies are supported
     return true;
 }
 
-
 void SX1272MB2xAS::Reset( void )
 {
-    reset.output();
+    reset.output( );
     reset = 0;
     wait_ms( 1 );
-    reset.input();
+    reset.input( );
     wait_ms( 6 );
 }
-    
+
 void SX1272MB2xAS::Write( uint8_t addr, uint8_t data )
 {
     Write( addr, &data, 1 );
--- a/sx1272/sx1272-hal.h	Wed Feb 17 09:17:18 2016 +0000
+++ b/sx1272/sx1272-hal.h	Mon Apr 24 09:26:08 2017 +0000
@@ -17,15 +17,16 @@
 #include "sx1272.h"
 
 /*!
- * \brief Radio hardware registers initialization definition
+ * @brief Radio hardware registers initialization definition
  *
- * \remark Can be automatically generated by the SX1272 GUI (not yet implemented)
+ * @remark Can be automatically generated by the SX1272 GUI (not yet implemented)
  */
 #define RADIO_INIT_REGISTERS_VALUE                \
 {                                                 \
     { MODEM_FSK , REG_LNA                , 0x23 },\
     { MODEM_FSK , REG_RXCONFIG           , 0x1E },\
     { MODEM_FSK , REG_RSSICONFIG         , 0xD2 },\
+    { MODEM_FSK , REG_AFCFEI             , 0x01 },\
     { MODEM_FSK , REG_PREAMBLEDETECT     , 0xAA },\
     { MODEM_FSK , REG_OSC                , 0x07 },\
     { MODEM_FSK , REG_SYNCCONFIG         , 0x12 },\
@@ -61,10 +62,10 @@
     DigitalInOut AntSwitch;
     DigitalIn Fake;
 #endif
-    
+
 private:
     static const RadioRegisters_t RadioRegsInit[];
-    
+
 public:
     SX1272MB2xAS( RadioEvents_t *events,
             PinName mosi, PinName miso, PinName sclk, PinName nss, PinName reset,
@@ -76,17 +77,17 @@
 #else
             PinName antSwitch ); 
 #endif
-    
+
     SX1272MB2xAS( RadioEvents_t *events );
-    
+
     virtual ~SX1272MB2xAS( ) { };
-    
-    protected:
+
+protected:
     /*!
      * @brief Initializes the radio I/Os pins interface
      */
     virtual void IoInit( void );
-    
+
     /*!
      *  @brief Initializes the radio registers
      */
@@ -96,7 +97,7 @@
      * @brief Initializes the radio SPI
      */
     virtual void SpiInit( void );
-    
+
     /*!
      * @brief Initializes DIO IRQ handlers
      *
@@ -112,6 +113,13 @@
     virtual void IoDeInit( void );
 
     /*!
+     * \brief Sets the radio output power.
+     *
+     * @param [IN] power Sets the RF output power
+     */
+    virtual void SetRfTxPower( int8_t power );
+
+    /*!
      * @brief Gets the board PA selection configuration
      *
      * @param [IN] channel Channel frequency in Hz
@@ -134,25 +142,25 @@
     /*!
      * @brief De-initializes the RF Switch I/Os pins interface 
      *
-     * \remark Needed to decrease the power consumption in MCU lowpower modes
+     * @remark Needed to decrease the power consumption in MCU lowpower modes
      */
     virtual void AntSwDeInit( void );
 
     /*!
      * @brief Controls the antena switch if necessary.
      *
-     * \remark see errata note
+     * @remark see errata note
      *
-     * @param [IN] rxTx [1: Tx, 0: Rx]
+     * @param [IN] opMode Current radio operating mode
      */
-    virtual void SetAntSw( uint8_t rxTx );
-    
-    public:
+    virtual void SetAntSw( uint8_t opMode );
+
+public:
     /*!
      * @brief Detect the board connected by reading the value of the antenna switch pin
      */
-    virtual uint8_t DetectBoardType( void );    
-    
+    virtual uint8_t DetectBoardType( void );
+
     /*!
      * @brief Checks if the given RF frequency is supported by the hardware
      *
@@ -160,15 +168,15 @@
      * @retval isSupported [true: supported, false: unsupported]
      */
     virtual bool CheckRfFrequency( uint32_t frequency );
-    
-        /*!
+
+    /*!
      * @brief Writes the radio register at the specified address
      *
      * @param [IN]: addr Register address
      * @param [IN]: data New register value
      */
     virtual void Write ( uint8_t addr, uint8_t data ) ;
-    
+
     /*!
      * @brief Reads the radio register at the specified address
      *
@@ -176,7 +184,7 @@
      * @retval data Register value
      */
     virtual uint8_t Read ( uint8_t addr ) ;
-    
+
     /*!
      * @brief Writes multiple radio registers starting at address
      *
@@ -185,7 +193,7 @@
      * @param [IN] size   Number of registers to be written
      */
     virtual void Write( uint8_t addr, uint8_t *buffer, uint8_t size ) ;
-    
+
     /*!
      * @brief Reads multiple radio registers starting at address
      *
@@ -194,7 +202,7 @@
      * @param [IN] size Number of registers to be read
      */
     virtual void Read ( uint8_t addr, uint8_t *buffer, uint8_t size ) ;
-    
+
     /*!
      * @brief Writes the buffer contents to the SX1272 FIFO
      *
@@ -210,7 +218,7 @@
      * @param [IN] size Number of bytes to be read from the FIFO
      */
     virtual void ReadFifo( uint8_t *buffer, uint8_t size ) ;
-    
+
     /*!
      * @brief Reset the SX1272
      */
--- a/sx1272/sx1272.cpp	Wed Feb 17 09:17:18 2016 +0000
+++ b/sx1272/sx1272.cpp	Mon Apr 24 09:26:08 2017 +0000
@@ -15,8 +15,8 @@
 #include "sx1272.h"
 
 const FskBandwidth_t SX1272::FskBandwidths[] =
-{       
-    { 2600  , 0x17 },   
+{
+    { 2600  , 0x17 },
     { 3100  , 0x0F },
     { 3900  , 0x07 },
     { 5200  , 0x16 },
@@ -37,7 +37,7 @@
     { 166700, 0x11 },
     { 200000, 0x09 },
     { 250000, 0x01 },
-    { 300000, 0x00 }, // Invalid Badwidth
+    { 300000, 0x00 }, // Invalid Bandwidth
 };
 
 
@@ -52,12 +52,10 @@
                 isRadioActive( false )
 {
     wait_ms( 10 );
-    this->rxTx = 0;
-    this->rxBuffer = new uint8_t[RX_BUFFER_SIZE];
-    currentOpMode = RF_OPMODE_STANDBY;
-    
+    this->rxtxBuffer = new uint8_t[RX_BUFFER_SIZE];
+
     this->RadioEvents = events;
-    
+
     this->dioIrq = new DioIrqHandler[6];
 
     this->dioIrq[0] = &SX1272::OnDio0Irq;
@@ -66,13 +64,13 @@
     this->dioIrq[3] = &SX1272::OnDio3Irq;
     this->dioIrq[4] = &SX1272::OnDio4Irq;
     this->dioIrq[5] = NULL;
-    
+
     this->settings.State = RF_IDLE;
 }
 
 SX1272::~SX1272( )
 {
-    delete this->rxBuffer;
+    delete this->rxtxBuffer;
     delete this->dioIrq;
 }
 
@@ -98,19 +96,19 @@
 bool SX1272::IsChannelFree( RadioModems_t modem, uint32_t freq, int16_t rssiThresh )
 {
     int16_t rssi = 0;
-    
+
     SetModem( modem );
 
     SetChannel( freq );
-    
+
     SetOpMode( RF_OPMODE_RECEIVER );
 
     wait_ms( 1 );
-    
+
     rssi = GetRssi( modem );
-    
+
     Sleep( );
-    
+
     if( rssi > rssiThresh )
     {
         return false;
@@ -124,7 +122,7 @@
     uint32_t rnd = 0;
 
     /*
-     * Radio setup for random number generation 
+     * Radio setup for random number generation
      */
     // Set LoRa modem ON
     SetModem( MODEM_LORA );
@@ -198,7 +196,8 @@
             this->settings.Fsk.IqInverted = iqInverted;
             this->settings.Fsk.RxContinuous = rxContinuous;
             this->settings.Fsk.PreambleLen = preambleLen;
-            
+            this->settings.Fsk.RxSingleTimeout = symbTimeout * ( ( 1.0 / ( double )datarate ) * 8.0 ) * 1e3;
+
             datarate = ( uint16_t )( ( double )XTAL_FREQ / ( double )datarate );
             Write( REG_BITRATEMSB, ( uint8_t )( datarate >> 8 ) );
             Write( REG_BITRATELSB, ( uint8_t )( datarate & 0xFF ) );
@@ -208,18 +207,23 @@
 
             Write( REG_PREAMBLEMSB, ( uint8_t )( ( preambleLen >> 8 ) & 0xFF ) );
             Write( REG_PREAMBLELSB, ( uint8_t )( preambleLen & 0xFF ) );
-            
+
             if( fixLen == 1 )
             {
                 Write( REG_PAYLOADLENGTH, payloadLen );
             }
-
+            else
+            {
+                Write( REG_PAYLOADLENGTH, 0xFF ); // Set payload length to the maximum
+            }
+            
             Write( REG_PACKETCONFIG1,
-                         ( Read( REG_PACKETCONFIG1 ) & 
+                         ( Read( REG_PACKETCONFIG1 ) &
                            RF_PACKETCONFIG1_CRC_MASK &
                            RF_PACKETCONFIG1_PACKETFORMAT_MASK ) |
                            ( ( fixLen == 1 ) ? RF_PACKETCONFIG1_PACKETFORMAT_FIXED : RF_PACKETCONFIG1_PACKETFORMAT_VARIABLE ) |
                            ( crcOn << 4 ) );
+            Write( REG_PACKETCONFIG2, ( Read( REG_PACKETCONFIG2 ) | RF_PACKETCONFIG2_DATAMODE_PACKET ) );
         }
         break;
     case MODEM_LORA:
@@ -244,7 +248,7 @@
             {
                 datarate = 6;
             }
-        
+
             if( ( ( bandwidth == 0 ) && ( ( datarate == 11 ) || ( datarate == 12 ) ) ) ||
                 ( ( bandwidth == 1 ) && ( datarate == 12 ) ) )
             {
@@ -255,14 +259,14 @@
                 this->settings.LoRa.LowDatarateOptimize = 0x00;
             }
 
-            Write( REG_LR_MODEMCONFIG1, 
+            Write( REG_LR_MODEMCONFIG1,
                          ( Read( REG_LR_MODEMCONFIG1 ) &
                            RFLR_MODEMCONFIG1_BW_MASK &
                            RFLR_MODEMCONFIG1_CODINGRATE_MASK &
                            RFLR_MODEMCONFIG1_IMPLICITHEADER_MASK &
                            RFLR_MODEMCONFIG1_RXPAYLOADCRC_MASK &
                            RFLR_MODEMCONFIG1_LOWDATARATEOPTIMIZE_MASK ) |
-                           ( bandwidth << 6 ) | ( coderate << 3 ) | 
+                           ( bandwidth << 6 ) | ( coderate << 3 ) |
                            ( fixLen << 2 ) | ( crcOn << 1 ) |
                            this->settings.LoRa.LowDatarateOptimize );
 
@@ -274,7 +278,7 @@
                            ( ( symbTimeout >> 8 ) & ~RFLR_MODEMCONFIG2_SYMBTIMEOUTMSB_MASK ) );
 
             Write( REG_LR_SYMBTIMEOUTLSB, ( uint8_t )( symbTimeout & 0xFF ) );
-            
+
             Write( REG_LR_PREAMBLEMSB, ( uint8_t )( ( preambleLen >> 8 ) & 0xFF ) );
             Write( REG_LR_PREAMBLELSB, ( uint8_t )( preambleLen & 0xFF ) );
 
@@ -291,11 +295,11 @@
 
             if( datarate == 6 )
             {
-                Write( REG_LR_DETECTOPTIMIZE, 
+                Write( REG_LR_DETECTOPTIMIZE,
                              ( Read( REG_LR_DETECTOPTIMIZE ) &
                                RFLR_DETECTIONOPTIMIZE_MASK ) |
                                RFLR_DETECTIONOPTIMIZE_SF6 );
-                Write( REG_LR_DETECTIONTHRESHOLD, 
+                Write( REG_LR_DETECTIONTHRESHOLD,
                              RFLR_DETECTIONTHRESH_SF6 );
             }
             else
@@ -304,119 +308,23 @@
                              ( Read( REG_LR_DETECTOPTIMIZE ) &
                              RFLR_DETECTIONOPTIMIZE_MASK ) |
                              RFLR_DETECTIONOPTIMIZE_SF7_TO_SF12 );
-                Write( REG_LR_DETECTIONTHRESHOLD, 
+                Write( REG_LR_DETECTIONTHRESHOLD,
                              RFLR_DETECTIONTHRESH_SF7_TO_SF12 );
             }
         }
         break;
     }
 }
-#if defined ( TARGET_MOTE_L152RC )
-/*     PD_2=0  PD_2=1
-op PaB  rfo     rfo
-0  4.6  18.5    27.0
-1  5.6  21.1    28.1
-2  6.7  23.3    29.1
-3  7.7  25.3    30.1
-4  8.8  26.2    30.7
-5  9.8  27.3    31.2
-6  10.7 28.1    31.6
-7  11.7 28.6    32.2
-8  12.8 29.2    32.4
-9  13.7 29.9    32.9
-10 14.7 30.5    33.1
-11 15.6 30.8    33.4
-12 16.4 30.9    33.6
-13 17.1 31.0    33.7
-14 17.8 31.1    33.7
-15 18.4 31.1    33.7
-*/
-//                           txpow:   0  1  2  3  4  5  6  7  8  9 10 11 12 13 14  15  16  17  18  19
-static const uint8_t PaBTable[20] = { 0, 0, 0, 0, 0, 1, 2, 3, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15 };
 
-//                           txpow:  20 21 22 23 24 25 26 27 28 29 30
-static const uint8_t RfoTable[11] = { 1, 1, 1, 2, 2, 3, 4, 5, 6, 8, 9 };
-#endif
-
-void SX1272::SetTxConfig( RadioModems_t modem, int8_t power, uint32_t fdev, 
+void SX1272::SetTxConfig( RadioModems_t modem, int8_t power, uint32_t fdev,
                         uint32_t bandwidth, uint32_t datarate,
                         uint8_t coderate, uint16_t preambleLen,
-                        bool fixLen, bool crcOn, bool freqHopOn, 
+                        bool fixLen, bool crcOn, bool freqHopOn,
                         uint8_t hopPeriod, bool iqInverted, uint32_t timeout )
 {
-    uint8_t paConfig = 0;
-    uint8_t paDac = 0;
-
     SetModem( modem );
-    
-    paConfig = Read( REG_PACONFIG );
-    paDac = Read( REG_PADAC );
-
-#if defined ( TARGET_MOTE_L152RC )
-    if( power > 19 )
-    {
-        paConfig = ( paConfig & RF_PACONFIG_PASELECT_MASK ) | RF_PACONFIG_PASELECT_RFO;
-        paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | RfoTable[power - 20];
-    }
-    else
-    {
-        paConfig = ( paConfig & RF_PACONFIG_PASELECT_MASK ) | RF_PACONFIG_PASELECT_PABOOST;
-        paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | PaBTable[power];
-    }
-#else
-    paConfig = ( paConfig & RF_PACONFIG_PASELECT_MASK ) | GetPaSelect( this->settings.Channel );
 
-    if( ( paConfig & RF_PACONFIG_PASELECT_PABOOST ) == RF_PACONFIG_PASELECT_PABOOST )
-    {
-        if( power > 17 )
-        {
-            paDac = ( paDac & RF_PADAC_20DBM_MASK ) | RF_PADAC_20DBM_ON;
-        }
-        else
-        {
-            paDac = ( paDac & RF_PADAC_20DBM_MASK ) | RF_PADAC_20DBM_OFF;
-        }
-        if( ( paDac & RF_PADAC_20DBM_ON ) == RF_PADAC_20DBM_ON )
-        {
-            if( power < 5 )
-            {
-                power = 5;
-            }
-            if( power > 20 )
-            {
-                power = 20;
-            }
-            paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | ( uint8_t )( ( uint16_t )( power - 5 ) & 0x0F );
-        }
-        else
-        {
-            if( power < 2 )
-            {
-                power = 2;
-            }
-            if( power > 17 )
-            {
-                power = 17;
-            }
-            paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | ( uint8_t )( ( uint16_t )( power - 2 ) & 0x0F );
-        }
-    }
-    else
-    {
-        if( power < -1 )
-        {
-            power = -1;
-        }
-        if( power > 14 )
-        {
-            power = 14;
-        }
-        paConfig = ( paConfig & RFLR_PACONFIG_OUTPUTPOWER_MASK ) | ( uint8_t )( ( uint16_t )( power + 1 ) & 0x0F );
-    }
-#endif
-
-    Write( REG_PACONFIG, paConfig );
-    Write( REG_PADAC, paDac );
+    SetRfTxPower( power );
 
     switch( modem )
     {
@@ -431,7 +339,7 @@
             this->settings.Fsk.CrcOn = crcOn;
             this->settings.Fsk.IqInverted = iqInverted;
             this->settings.Fsk.TxTimeout = timeout;
-            
+
             fdev = ( uint16_t )( ( double )fdev / ( double )FREQ_STEP );
             Write( REG_FDEVMSB, ( uint8_t )( fdev >> 8 ) );
             Write( REG_FDEVLSB, ( uint8_t )( fdev & 0xFF ) );
@@ -444,12 +352,12 @@
             Write( REG_PREAMBLELSB, preambleLen & 0xFF );
 
             Write( REG_PACKETCONFIG1,
-                         ( Read( REG_PACKETCONFIG1 ) & 
+                         ( Read( REG_PACKETCONFIG1 ) &
                            RF_PACKETCONFIG1_CRC_MASK &
                            RF_PACKETCONFIG1_PACKETFORMAT_MASK ) |
                            ( ( fixLen == 1 ) ? RF_PACKETCONFIG1_PACKETFORMAT_FIXED : RF_PACKETCONFIG1_PACKETFORMAT_VARIABLE ) |
                            ( crcOn << 4 ) );
-        
+            Write( REG_PACKETCONFIG2, ( Read( REG_PACKETCONFIG2 ) | RF_PACKETCONFIG2_DATAMODE_PACKET ) );
         }
         break;
     case MODEM_LORA:
@@ -490,14 +398,14 @@
                 Write( REG_LR_HOPPERIOD, this->settings.LoRa.HopPeriod );
             }
 
-            Write( REG_LR_MODEMCONFIG1, 
+            Write( REG_LR_MODEMCONFIG1,
                          ( Read( REG_LR_MODEMCONFIG1 ) &
                            RFLR_MODEMCONFIG1_BW_MASK &
                            RFLR_MODEMCONFIG1_CODINGRATE_MASK &
                            RFLR_MODEMCONFIG1_IMPLICITHEADER_MASK &
                            RFLR_MODEMCONFIG1_RXPAYLOADCRC_MASK &
                            RFLR_MODEMCONFIG1_LOWDATARATEOPTIMIZE_MASK ) |
-                           ( bandwidth << 6 ) | ( coderate << 3 ) | 
+                           ( bandwidth << 6 ) | ( coderate << 3 ) |
                            ( fixLen << 2 ) | ( crcOn << 1 ) |
                            this->settings.LoRa.LowDatarateOptimize );
 
@@ -506,17 +414,17 @@
                           RFLR_MODEMCONFIG2_SF_MASK ) |
                           ( datarate << 4 ) );
 
-        
+
             Write( REG_LR_PREAMBLEMSB, ( preambleLen >> 8 ) & 0x00FF );
             Write( REG_LR_PREAMBLELSB, preambleLen & 0xFF );
-            
+
             if( datarate == 6 )
             {
-                Write( REG_LR_DETECTOPTIMIZE, 
+                Write( REG_LR_DETECTOPTIMIZE,
                              ( Read( REG_LR_DETECTOPTIMIZE ) &
                                RFLR_DETECTIONOPTIMIZE_MASK ) |
                                RFLR_DETECTIONOPTIMIZE_SF6 );
-                Write( REG_LR_DETECTIONTHRESHOLD, 
+                Write( REG_LR_DETECTIONTHRESHOLD,
                              RFLR_DETECTIONTHRESH_SF6 );
             }
             else
@@ -525,7 +433,7 @@
                              ( Read( REG_LR_DETECTOPTIMIZE ) &
                              RFLR_DETECTIONOPTIMIZE_MASK ) |
                              RFLR_DETECTIONOPTIMIZE_SF7_TO_SF12 );
-                Write( REG_LR_DETECTIONTHRESHOLD, 
+                Write( REG_LR_DETECTIONTHRESHOLD,
                              RFLR_DETECTIONTHRESH_SF7_TO_SF12 );
             }
         }
@@ -533,7 +441,7 @@
     }
 }
 
-double SX1272::TimeOnAir( RadioModems_t modem, uint8_t pktLen )
+uint32_t SX1272::TimeOnAir( RadioModems_t modem, uint8_t pktLen )
 {
     uint32_t airTime = 0;
 
@@ -547,7 +455,7 @@
                                      ( ( ( Read( REG_PACKETCONFIG1 ) & ~RF_PACKETCONFIG1_ADDRSFILTERING_MASK ) != 0x00 ) ? 1.0 : 0 ) +
                                      pktLen +
                                      ( ( this->settings.Fsk.CrcOn == 0x01 ) ? 2.0 : 0 ) ) /
-                                     this->settings.Fsk.Datarate ) * 1e6 );
+                                     this->settings.Fsk.Datarate ) * 1e3 );
         }
         break;
     case MODEM_LORA:
@@ -575,15 +483,15 @@
             double tmp = ceil( ( 8 * pktLen - 4 * this->settings.LoRa.Datarate +
                                  28 + 16 * this->settings.LoRa.CrcOn -
                                  ( this->settings.LoRa.FixLen ? 20 : 0 ) ) /
-                                 ( double )( 4 * this->settings.LoRa.Datarate -
-                                 ( ( this->settings.LoRa.LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) *
+                                 ( double )( 4 * ( this->settings.LoRa.Datarate -
+                                 ( ( this->settings.LoRa.LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) *
                                  ( this->settings.LoRa.Coderate + 4 );
             double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 );
             double tPayload = nPayload * ts;
-            // Time on air 
+            // Time on air
             double tOnAir = tPreamble + tPayload;
-            // return us secs
-            airTime = floor( tOnAir * 1e6 + 0.999 );
+            // return ms secs
+            airTime = floor( tOnAir * 1e3 + 0.999 );
         }
         break;
     }
@@ -608,14 +516,15 @@
             else
             {
                 Write( REG_PAYLOADLENGTH, size );
-            }            
-            
+            }
+
             if( ( size > 0 ) && ( size <= 64 ) )
             {
                 this->settings.FskPacketHandler.ChunkSize = size;
             }
             else
             {
+                memcpy( rxtxBuffer, buffer, size );
                 this->settings.FskPacketHandler.ChunkSize = 32;
             }
 
@@ -636,14 +545,14 @@
             {
                 Write( REG_LR_INVERTIQ, ( ( Read( REG_LR_INVERTIQ ) & RFLR_INVERTIQ_TX_MASK & RFLR_INVERTIQ_RX_MASK ) | RFLR_INVERTIQ_RX_OFF | RFLR_INVERTIQ_TX_OFF ) );
                 Write( REG_LR_INVERTIQ2, RFLR_INVERTIQ2_OFF );
-            }      
-        
+            }
+
             this->settings.LoRaPacketHandler.Size = size;
 
             // Initializes the payload size
             Write( REG_LR_PAYLOADLENGTH, size );
 
-            // Full buffer used for Tx            
+            // Full buffer used for Tx
             Write( REG_LR_FIFOTXBASEADDR, 0 );
             Write( REG_LR_FIFOADDRPTR, 0 );
 
@@ -665,7 +574,7 @@
 
 void SX1272::Sleep( void )
 {
-    txTimeoutTimer.detach(  );
+    txTimeoutTimer.detach( );
     rxTimeoutTimer.detach( );
 
     SetOpMode( RF_OPMODE_SLEEP );
@@ -674,7 +583,7 @@
 
 void SX1272::Standby( void )
 {
-    txTimeoutTimer.detach(  );
+    txTimeoutTimer.detach( );
     rxTimeoutTimer.detach( );
 
     SetOpMode( RF_OPMODE_STANDBY );
@@ -684,13 +593,13 @@
 void SX1272::Rx( uint32_t timeout )
 {
     bool rxContinuous = false;
-    
+
     switch( this->settings.Modem )
     {
     case MODEM_FSK:
         {
             rxContinuous = this->settings.Fsk.RxContinuous;
-            
+
             // DIO0=PayloadReady
             // DIO1=FifoLevel
             // DIO2=SyncAddr
@@ -698,17 +607,21 @@
             // DIO4=Preamble
             // DIO5=ModeReady
             Write( REG_DIOMAPPING1, ( Read( REG_DIOMAPPING1 ) & RF_DIOMAPPING1_DIO0_MASK &
+                                                                            RF_DIOMAPPING1_DIO1_MASK &
                                                                             RF_DIOMAPPING1_DIO2_MASK ) |
                                                                             RF_DIOMAPPING1_DIO0_00 |
+                                                                            RF_DIOMAPPING1_DIO1_00 |
                                                                             RF_DIOMAPPING1_DIO2_11 );
-            
+
             Write( REG_DIOMAPPING2, ( Read( REG_DIOMAPPING2 ) & RF_DIOMAPPING2_DIO4_MASK &
-                                                                            RF_DIOMAPPING2_MAP_MASK ) | 
+                                                                            RF_DIOMAPPING2_MAP_MASK ) |
                                                                             RF_DIOMAPPING2_DIO4_11 |
                                                                             RF_DIOMAPPING2_MAP_PREAMBLEDETECT );
-            
+
             this->settings.FskPacketHandler.FifoThresh = Read( REG_FIFOTHRESH ) & 0x3F;
-            
+
+            Write( REG_RXCONFIG, RF_RXCONFIG_AFCAUTO_ON | RF_RXCONFIG_AGCAUTO_ON | RF_RXCONFIG_RXTRIGER_PREAMBLEDETECT );
+
             this->settings.FskPacketHandler.PreambleDetected = false;
             this->settings.FskPacketHandler.SyncWordDetected = false;
             this->settings.FskPacketHandler.NbBytes = 0;
@@ -726,10 +639,10 @@
             {
                 Write( REG_LR_INVERTIQ, ( ( Read( REG_LR_INVERTIQ ) & RFLR_INVERTIQ_TX_MASK & RFLR_INVERTIQ_RX_MASK ) | RFLR_INVERTIQ_RX_OFF | RFLR_INVERTIQ_TX_OFF ) );
                 Write( REG_LR_INVERTIQ2, RFLR_INVERTIQ2_OFF );
-            }         
-        
+            }
+
             rxContinuous = this->settings.LoRa.RxContinuous;
-            
+
             if( this->settings.LoRa.FreqHopOn == true )
             {
                 Write( REG_LR_IRQFLAGSMASK, //RFLR_IRQFLAGS_RXTIMEOUT |
@@ -740,7 +653,7 @@
                                                   RFLR_IRQFLAGS_CADDONE |
                                                   //RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL |
                                                   RFLR_IRQFLAGS_CADDETECTED );
-                                              
+
                 // DIO0=RxDone, DIO2=FhssChangeChannel
                 Write( REG_DIOMAPPING1, ( Read( REG_DIOMAPPING1 ) & RFLR_DIOMAPPING1_DIO0_MASK & RFLR_DIOMAPPING1_DIO2_MASK  ) | RFLR_DIOMAPPING1_DIO0_00 | RFLR_DIOMAPPING1_DIO2_00 );
             }
@@ -754,7 +667,7 @@
                                                   RFLR_IRQFLAGS_CADDONE |
                                                   RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL |
                                                   RFLR_IRQFLAGS_CADDETECTED );
-                                              
+
                 // DIO0=RxDone
                 Write( REG_DIOMAPPING1, ( Read( REG_DIOMAPPING1 ) & RFLR_DIOMAPPING1_DIO0_MASK ) | RFLR_DIOMAPPING1_DIO0_00 );
             }
@@ -764,25 +677,22 @@
         break;
     }
 
-    memset( rxBuffer, 0, ( size_t )RX_BUFFER_SIZE );
+    memset( rxtxBuffer, 0, ( size_t )RX_BUFFER_SIZE );
 
     this->settings.State = RF_RX_RUNNING;
     if( timeout != 0 )
     {
-        rxTimeoutTimer.attach_us( this, &SX1272::OnTimeoutIrq, timeout );
+        rxTimeoutTimer.attach_us( mbed::callback( this, &SX1272::OnTimeoutIrq ), timeout * 1e3 );
     }
 
     if( this->settings.Modem == MODEM_FSK )
     {
         SetOpMode( RF_OPMODE_RECEIVER );
-        
+
         if( rxContinuous == false )
         {
-            rxTimeoutSyncWord.attach_us( this, &SX1272::OnTimeoutIrq, ( 8.0 * ( this->settings.Fsk.PreambleLen +
-                                                         ( ( Read( REG_SYNCCONFIG ) &
-                                                            ~RF_SYNCCONFIG_SYNCSIZE_MASK ) +
-                                                         1.0 ) + 10.0 ) /
-                                                        ( double )this->settings.Fsk.Datarate ) * 1e6 );
+            rxTimeoutSyncWord.attach_us( mbed::callback( this, &SX1272::OnTimeoutIrq ),
+                                         this->settings.Fsk.RxSingleTimeout * 1e3 );
         }
     }
     else
@@ -806,13 +716,15 @@
     case MODEM_FSK:
         {
             // DIO0=PacketSent
-            // DIO1=FifoLevel
+            // DIO1=FifoEmpty
             // DIO2=FifoFull
             // DIO3=FifoEmpty
             // DIO4=LowBat
             // DIO5=ModeReady
             Write( REG_DIOMAPPING1, ( Read( REG_DIOMAPPING1 ) & RF_DIOMAPPING1_DIO0_MASK &
-                                                                            RF_DIOMAPPING1_DIO2_MASK ) );
+                                                                            RF_DIOMAPPING1_DIO1_MASK &
+                                                                            RF_DIOMAPPING1_DIO2_MASK ) |
+                                                                            RF_DIOMAPPING1_DIO1_01 );
 
             Write( REG_DIOMAPPING2, ( Read( REG_DIOMAPPING2 ) & RF_DIOMAPPING2_DIO4_MASK &
                                                                             RF_DIOMAPPING2_MAP_MASK ) );
@@ -831,7 +743,7 @@
                                                   RFLR_IRQFLAGS_CADDONE |
                                                   //RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL |
                                                   RFLR_IRQFLAGS_CADDETECTED );
-                                              
+
                 // DIO0=TxDone, DIO2=FhssChangeChannel
                 Write( REG_DIOMAPPING1, ( Read( REG_DIOMAPPING1 ) & RFLR_DIOMAPPING1_DIO0_MASK & RFLR_DIOMAPPING1_DIO2_MASK ) | RFLR_DIOMAPPING1_DIO0_01 | RFLR_DIOMAPPING1_DIO2_00 );
             }
@@ -854,7 +766,7 @@
     }
 
     this->settings.State = RF_TX_RUNNING;
-    txTimeoutTimer.attach_us( this, &SX1272::OnTimeoutIrq, timeout );
+    txTimeoutTimer.attach_us( mbed::callback( this, &SX1272::OnTimeoutIrq ), timeout * 1e3 );
     SetOpMode( RF_OPMODE_TRANSMITTER );
 }
 
@@ -864,7 +776,7 @@
     {
     case MODEM_FSK:
         {
-           
+
         }
         break;
     case MODEM_LORA:
@@ -876,12 +788,12 @@
                                         RFLR_IRQFLAGS_TXDONE |
                                         //RFLR_IRQFLAGS_CADDONE |
                                         RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL // |
-                                        //RFLR_IRQFLAGS_CADDETECTED 
+                                        //RFLR_IRQFLAGS_CADDETECTED
                                         );
-                                          
+
             // DIO3=CADDone
-            Write( REG_DIOMAPPING1, ( Read( REG_DIOMAPPING1 ) & RFLR_DIOMAPPING1_DIO0_MASK ) | RFLR_DIOMAPPING1_DIO0_00 );
-            
+            Write( REG_DIOMAPPING1, ( Read( REG_DIOMAPPING1 ) & RFLR_DIOMAPPING1_DIO3_MASK ) | RFLR_DIOMAPPING1_DIO3_00 );
+
             this->settings.State = RF_CAD;
             SetOpMode( RFLR_OPMODE_CAD );
         }
@@ -891,6 +803,24 @@
     }
 }
 
+void SX1272::SetTxContinuousWave( uint32_t freq, int8_t power, uint16_t time )
+{
+    uint32_t timeout = ( uint32_t )( time * 1e6 );
+
+    SetChannel( freq );
+
+    SetTxConfig( MODEM_FSK, power, 0, 0, 4800, 0, 5, false, false, 0, 0, 0, timeout );
+
+    Write( REG_PACKETCONFIG2, ( Read( REG_PACKETCONFIG2 ) & RF_PACKETCONFIG2_DATAMODE_MASK ) );
+    // Disable radio interrupts
+    Write( REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_11 | RF_DIOMAPPING1_DIO1_11 );
+    Write( REG_DIOMAPPING2, RF_DIOMAPPING2_DIO4_10 | RF_DIOMAPPING2_DIO5_10 );
+
+    this->settings.State = RF_TX_RUNNING;
+    txTimeoutTimer.attach_us( mbed::callback( this, &SX1272::OnTimeoutIrq ), timeout );
+    SetOpMode( RF_OPMODE_TRANSMITTER );
+}
+
 int16_t SX1272::GetRssi( RadioModems_t modem )
 {
     int16_t rssi = 0;
@@ -912,31 +842,29 @@
 
 void SX1272::SetOpMode( uint8_t opMode )
 {
-    if( opMode != currentOpMode )
+    if( opMode == RF_OPMODE_SLEEP )
     {
-        currentOpMode = opMode;
-        if( opMode == RF_OPMODE_SLEEP )
-        {
-            SetAntSwLowPower( true );
-        }
-        else
-        {
-            SetAntSwLowPower( false );
-            if( opMode == RF_OPMODE_TRANSMITTER )
-            {
-                 SetAntSw( 1 );
-            }
-            else
-            {
-                 SetAntSw( 0 );
-            }
-        }
-        Write( REG_OPMODE, ( Read( REG_OPMODE ) & RF_OPMODE_MASK ) | opMode );
+        SetAntSwLowPower( true );
     }
+    else
+    {
+        SetAntSwLowPower( false );
+        SetAntSw( opMode );
+    }
+    Write( REG_OPMODE, ( Read( REG_OPMODE ) & RF_OPMODE_MASK ) | opMode );
 }
 
 void SX1272::SetModem( RadioModems_t modem )
 {
+    if( ( Read( REG_OPMODE ) & RFLR_OPMODE_LONGRANGEMODE_ON ) != 0 )
+    {
+        this->settings.Modem = MODEM_LORA;
+    }
+    else
+    {
+        this->settings.Modem = MODEM_FSK;
+    }
+
     if( this->settings.Modem == modem )
     {
         return;
@@ -947,14 +875,14 @@
     {
     default:
     case MODEM_FSK:
-        SetOpMode( RF_OPMODE_SLEEP );
+        Sleep( );
         Write( REG_OPMODE, ( Read( REG_OPMODE ) & RFLR_OPMODE_LONGRANGEMODE_MASK ) | RFLR_OPMODE_LONGRANGEMODE_OFF );
-    
+
         Write( REG_DIOMAPPING1, 0x00 );
         Write( REG_DIOMAPPING2, 0x30 ); // DIO5=ModeReady
         break;
     case MODEM_LORA:
-        SetOpMode( RF_OPMODE_SLEEP );
+        Sleep( );
         Write( REG_OPMODE, ( Read( REG_OPMODE ) & RFLR_OPMODE_LONGRANGEMODE_MASK ) | RFLR_OPMODE_LONGRANGEMODE_ON );
 
         Write( REG_DIOMAPPING1, 0x00 );
@@ -981,6 +909,22 @@
     }
 }
 
+void SX1272::SetPublicNetwork( bool enable )
+{
+    SetModem( MODEM_LORA );
+    this->settings.LoRa.PublicNetwork = enable;
+    if( enable == true )
+    {
+        // Change LoRa modem SyncWord
+        Write( REG_LR_SYNCWORD, LORA_MAC_PUBLIC_SYNCWORD );
+    }
+    else
+    {
+        // Change LoRa modem SyncWord
+        Write( REG_LR_SYNCWORD, LORA_MAC_PRIVATE_SYNCWORD );
+    }
+}
+
 void SX1272::OnTimeoutIrq( void )
 {
     switch( this->settings.State )
@@ -994,7 +938,7 @@
             this->settings.FskPacketHandler.Size = 0;
 
             // Clear Irqs
-            Write( REG_IRQFLAGS1, RF_IRQFLAGS1_RSSI | 
+            Write( REG_IRQFLAGS1, RF_IRQFLAGS1_RSSI |
                                         RF_IRQFLAGS1_PREAMBLEDETECT |
                                         RF_IRQFLAGS1_SYNCADDRESSMATCH );
             Write( REG_IRQFLAGS2, RF_IRQFLAGS2_FIFOOVERRUN );
@@ -1003,6 +947,8 @@
             {
                 // Continuous mode restart Rx chain
                 Write( REG_RXCONFIG, Read( REG_RXCONFIG ) | RF_RXCONFIG_RESTARTRXWITHOUTPLLLOCK );
+                rxTimeoutSyncWord.attach_us( mbed::callback( this, &SX1272::OnTimeoutIrq ),
+                                             this->settings.Fsk.RxSingleTimeout * 1e3 );
             }
             else
             {
@@ -1016,6 +962,28 @@
         }
         break;
     case RF_TX_RUNNING:
+        // Tx timeout shouldn't happen.
+        // But it has been observed that when it happens it is a result of a corrupted SPI transfer
+        // it depends on the platform design.
+        // 
+        // The workaround is to put the radio in a known state. Thus, we re-initialize it.
+
+        // BEGIN WORKAROUND
+
+        // Reset the radio
+        Reset( );
+
+        // Initialize radio default values
+        SetOpMode( RF_OPMODE_SLEEP );
+
+        RadioRegistersInit( );
+
+        SetModem( MODEM_FSK );
+
+        // Restore previous network type setting.
+        SetPublicNetwork( this->settings.LoRa.PublicNetwork );
+        // END WORKAROUND
+
         this->settings.State = RF_IDLE;
         if( ( this->RadioEvents != NULL ) && ( this->RadioEvents->TxTimeout != NULL ) )
         {
@@ -1032,7 +1000,7 @@
     volatile uint8_t irqFlags = 0;
 
     switch( this->settings.State )
-    {                
+    {
         case RF_RX_RUNNING:
             //TimerStop( &RxTimeoutTimer );
             // RxDone interrupt
@@ -1045,27 +1013,26 @@
                     if( ( irqFlags & RF_IRQFLAGS2_CRCOK ) != RF_IRQFLAGS2_CRCOK )
                     {
                         // Clear Irqs
-                        Write( REG_IRQFLAGS1, RF_IRQFLAGS1_RSSI | 
+                        Write( REG_IRQFLAGS1, RF_IRQFLAGS1_RSSI |
                                                     RF_IRQFLAGS1_PREAMBLEDETECT |
                                                     RF_IRQFLAGS1_SYNCADDRESSMATCH );
                         Write( REG_IRQFLAGS2, RF_IRQFLAGS2_FIFOOVERRUN );
-    
+
+                        rxTimeoutTimer.detach( );
+
                         if( this->settings.Fsk.RxContinuous == false )
                         {
+                            rxTimeoutSyncWord.detach( );
                             this->settings.State = RF_IDLE;
-                            rxTimeoutSyncWord.attach_us( this, &SX1272::OnTimeoutIrq, (  8.0 * ( this->settings.Fsk.PreambleLen +
-                                                             ( ( Read( REG_SYNCCONFIG ) &
-                                                                ~RF_SYNCCONFIG_SYNCSIZE_MASK ) +
-                                                             1.0 ) + 10.0 ) /
-                                                            ( double )this->settings.Fsk.Datarate ) * 1e6 ) ;
                         }
                         else
                         {
                             // Continuous mode restart Rx chain
                             Write( REG_RXCONFIG, Read( REG_RXCONFIG ) | RF_RXCONFIG_RESTARTRXWITHOUTPLLLOCK );
+                            rxTimeoutSyncWord.attach_us( mbed::callback( this, &SX1272::OnTimeoutIrq ),
+                                                         this->settings.Fsk.RxSingleTimeout * 1e3 );
                         }
-                        rxTimeoutTimer.detach( );
-    
+
                         if( ( this->RadioEvents != NULL ) && ( this->RadioEvents->RxError != NULL ) )
                         {
                             this->RadioEvents->RxError( );
@@ -1089,35 +1056,34 @@
                     {
                         this->settings.FskPacketHandler.Size = Read( REG_PAYLOADLENGTH );
                     }
-                    ReadFifo( rxBuffer + this->settings.FskPacketHandler.NbBytes, this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
+                    ReadFifo( rxtxBuffer + this->settings.FskPacketHandler.NbBytes, this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
                     this->settings.FskPacketHandler.NbBytes += ( this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
                 }
                 else
                 {
-                    ReadFifo( rxBuffer + this->settings.FskPacketHandler.NbBytes, this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
+                    ReadFifo( rxtxBuffer + this->settings.FskPacketHandler.NbBytes, this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
                     this->settings.FskPacketHandler.NbBytes += ( this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
                 }
 
+                rxTimeoutTimer.detach( );
+
                 if( this->settings.Fsk.RxContinuous == false )
                 {
                     this->settings.State = RF_IDLE;
-                    rxTimeoutSyncWord.attach_us( this, &SX1272::OnTimeoutIrq, ( 8.0 * ( this->settings.Fsk.PreambleLen +
-                                                         ( ( Read( REG_SYNCCONFIG ) &
-                                                            ~RF_SYNCCONFIG_SYNCSIZE_MASK ) +
-                                                         1.0 ) + 10.0 ) /
-                                                        ( double )this->settings.Fsk.Datarate ) * 1e6 ) ;
+                    rxTimeoutSyncWord.detach( );
                 }
                 else
                 {
                     // Continuous mode restart Rx chain
                     Write( REG_RXCONFIG, Read( REG_RXCONFIG ) | RF_RXCONFIG_RESTARTRXWITHOUTPLLLOCK );
+                    rxTimeoutSyncWord.attach_us( mbed::callback( this, &SX1272::OnTimeoutIrq ),
+                                                 this->settings.Fsk.RxSingleTimeout * 1e3 );
                 }
-                rxTimeoutTimer.detach( );
 
                 if( ( this->RadioEvents != NULL ) && ( this->RadioEvents->RxDone != NULL ) )
                 {
-                    this->RadioEvents->RxDone( rxBuffer, this->settings.FskPacketHandler.Size, this->settings.FskPacketHandler.RssiValue, 0 );
-                } 
+                    this->RadioEvents->RxDone( rxtxBuffer, this->settings.FskPacketHandler.Size, this->settings.FskPacketHandler.RssiValue, 0 );
+                }
                 this->settings.FskPacketHandler.PreambleDetected = false;
                 this->settings.FskPacketHandler.SyncWordDetected = false;
                 this->settings.FskPacketHandler.NbBytes = 0;
@@ -1169,13 +1135,13 @@
                                                                       snr;
                     }
                     else
-                    {    
+                    {
                         this->settings.LoRaPacketHandler.RssiValue = RSSI_OFFSET + rssi + ( rssi >> 4 );
                     }
 
                     this->settings.LoRaPacketHandler.Size = Read( REG_LR_RXNBBYTES );
-                    ReadFifo( rxBuffer, this->settings.LoRaPacketHandler.Size );
-                
+                    ReadFifo( rxtxBuffer, this->settings.LoRaPacketHandler.Size );
+
                     if( this->settings.LoRa.RxContinuous == false )
                     {
                         this->settings.State = RF_IDLE;
@@ -1184,7 +1150,7 @@
 
                     if( ( this->RadioEvents != NULL ) && ( this->RadioEvents->RxDone != NULL ) )
                     {
-                        this->RadioEvents->RxDone( rxBuffer, this->settings.LoRaPacketHandler.Size, this->settings.LoRaPacketHandler.RssiValue, this->settings.LoRaPacketHandler.SnrValue );
+                        this->RadioEvents->RxDone( rxtxBuffer, this->settings.LoRaPacketHandler.Size, this->settings.LoRaPacketHandler.RssiValue, this->settings.LoRaPacketHandler.SnrValue );
                     }
                 }
                 break;
@@ -1193,7 +1159,7 @@
             }
             break;
         case RF_TX_RUNNING:
-            txTimeoutTimer.detach(  );
+            txTimeoutTimer.detach( );
             // TxDone interrupt
             switch( this->settings.Modem )
             {
@@ -1207,7 +1173,7 @@
                 if( ( this->RadioEvents != NULL ) && ( this->RadioEvents->TxDone != NULL ) )
                 {
                     this->RadioEvents->TxDone( );
-                } 
+                }
                 break;
             }
             break;
@@ -1219,7 +1185,7 @@
 void SX1272::OnDio1Irq( void )
 {
     switch( this->settings.State )
-    {                
+    {
         case RF_RX_RUNNING:
             switch( this->settings.Modem )
             {
@@ -1240,18 +1206,21 @@
 
                 if( ( this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes ) > this->settings.FskPacketHandler.FifoThresh )
                 {
-                    ReadFifo( ( rxBuffer + this->settings.FskPacketHandler.NbBytes ), this->settings.FskPacketHandler.FifoThresh );
+                    ReadFifo( ( rxtxBuffer + this->settings.FskPacketHandler.NbBytes ), this->settings.FskPacketHandler.FifoThresh );
                     this->settings.FskPacketHandler.NbBytes += this->settings.FskPacketHandler.FifoThresh;
                 }
                 else
                 {
-                    ReadFifo( ( rxBuffer + this->settings.FskPacketHandler.NbBytes ), this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
+                    ReadFifo( ( rxtxBuffer + this->settings.FskPacketHandler.NbBytes ), this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
                     this->settings.FskPacketHandler.NbBytes += ( this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
                 }
                 break;
             case MODEM_LORA:
                 // Sync time out
                 rxTimeoutTimer.detach( );
+                // Clear Irq
+                Write( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_RXTIMEOUT );
+
                 this->settings.State = RF_IDLE;
                 if( ( this->RadioEvents != NULL ) && ( this->RadioEvents->RxTimeout != NULL ) )
                 {
@@ -1266,16 +1235,16 @@
             switch( this->settings.Modem )
             {
             case MODEM_FSK:
-                // FifoLevel interrupt
+                // FifoEmpty interrupt
                 if( ( this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes ) > this->settings.FskPacketHandler.ChunkSize )
                 {
-                    WriteFifo( ( rxBuffer + this->settings.FskPacketHandler.NbBytes ), this->settings.FskPacketHandler.ChunkSize );
+                    WriteFifo( ( rxtxBuffer + this->settings.FskPacketHandler.NbBytes ), this->settings.FskPacketHandler.ChunkSize );
                     this->settings.FskPacketHandler.NbBytes += this->settings.FskPacketHandler.ChunkSize;
                 }
-                else 
+                else
                 {
                     // Write the last chunk of data
-                    WriteFifo( rxBuffer + this->settings.FskPacketHandler.NbBytes, this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
+                    WriteFifo( rxtxBuffer + this->settings.FskPacketHandler.NbBytes, this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes );
                     this->settings.FskPacketHandler.NbBytes += this->settings.FskPacketHandler.Size - this->settings.FskPacketHandler.NbBytes;
                 }
                 break;
@@ -1293,17 +1262,23 @@
 void SX1272::OnDio2Irq( void )
 {
     switch( this->settings.State )
-    {                
+    {
         case RF_RX_RUNNING:
             switch( this->settings.Modem )
             {
             case MODEM_FSK:
+                // Checks if DIO4 is connected. If it is not PreambleDtected is set to true.
+                if( this->dioIrq[4] == NULL )
+                {
+                    this->settings.FskPacketHandler.PreambleDetected = true;
+                }
+
                 if( ( this->settings.FskPacketHandler.PreambleDetected == true ) && ( this->settings.FskPacketHandler.SyncWordDetected == false ) )
                 {
                     rxTimeoutSyncWord.detach( );
-                    
+
                     this->settings.FskPacketHandler.SyncWordDetected = true;
-                
+
                     this->settings.FskPacketHandler.RssiValue = -( Read( REG_RSSIVALUE ) >> 1 );
 
                     this->settings.FskPacketHandler.AfcValue = ( int32_t )( double )( ( ( uint16_t )Read( REG_AFCMSB ) << 8 ) |
@@ -1317,7 +1292,7 @@
                 {
                     // Clear Irq
                     Write( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL );
-                    
+
                     if( ( this->RadioEvents != NULL ) && ( this->RadioEvents->FhssChangeChannel != NULL ) )
                     {
                         this->RadioEvents->FhssChangeChannel( ( Read( REG_LR_HOPCHANNEL ) & RFLR_HOPCHANNEL_CHANNEL_MASK ) );
@@ -1338,7 +1313,7 @@
                 {
                     // Clear Irq
                     Write( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL );
-                    
+
                     if( ( this->RadioEvents != NULL ) && ( this->RadioEvents->FhssChangeChannel != NULL ) )
                     {
                         this->RadioEvents->FhssChangeChannel( ( Read( REG_LR_HOPCHANNEL ) & RFLR_HOPCHANNEL_CHANNEL_MASK ) );
@@ -1371,7 +1346,7 @@
             }
         }
         else
-        {        
+        {
             // Clear Irq
             Write( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_CADDONE );
             if( ( this->RadioEvents != NULL ) && ( this->RadioEvents->CadDone != NULL ) )
@@ -1394,7 +1369,7 @@
             if( this->settings.FskPacketHandler.PreambleDetected == false )
             {
                 this->settings.FskPacketHandler.PreambleDetected = true;
-            }    
+            }
         }
         break;
     case MODEM_LORA:
--- a/sx1272/sx1272.h	Wed Feb 17 09:17:18 2016 +0000
+++ b/sx1272/sx1272.h	Mon Apr 24 09:26:08 2017 +0000
@@ -21,9 +21,20 @@
 #include "./typedefs/typedefs.h"
 
 /*!
- * Radio wakeup time from SLEEP mode
+ * Radio wake-up time from sleep
+ */
+#define RADIO_WAKEUP_TIME                           1 // [ms]
+
+/*!
+ * Sync word for Private LoRa networks
  */
-#define RADIO_WAKEUP_TIME                           1000 // [us]
+#define LORA_MAC_PRIVATE_SYNCWORD                   0x12
+
+/*!
+ * Sync word for Public LoRa networks
+ */
+#define LORA_MAC_PUBLIC_SYNCWORD                    0x34
+
 
 /*!
  * SX1272 definitions
@@ -64,35 +75,28 @@
     InterruptIn dio3;
     InterruptIn dio4;
     DigitalIn dio5;
-    
+
     bool isRadioActive;
-    
+
     uint8_t boardConnected; //1 = SX1272MB1DCS; 0 = SX1272MB1DAS
-    
-    uint8_t *rxBuffer;
-    
-    uint8_t currentOpMode;
-    
+
+    uint8_t *rxtxBuffer;
+
     /*!
      * Hardware DIO IRQ functions
      */
     DioIrqHandler *dioIrq;
-    
+
     /*!
      * Tx and Rx timers
      */
     Timeout txTimeoutTimer;
     Timeout rxTimeoutTimer;
     Timeout rxTimeoutSyncWord;
-    
-    /*!
-     *  rxTx: [1: Tx, 0: Rx]
-     */
-    uint8_t rxTx;
-    
+
     RadioSettings_t settings;
-    
-    static const FskBandwidth_t FskBandwidths[] ;
+
+    static const FskBandwidth_t FskBandwidths[];
 protected:
 
     /*!
@@ -105,7 +109,7 @@
 public:
     SX1272( RadioEvents_t *events,
             PinName mosi, PinName miso, PinName sclk, PinName nss, PinName reset,
-            PinName dio0, PinName dio1, PinName dio2, PinName dio3, PinName dio4, PinName dio5 ); 
+            PinName dio0, PinName dio1, PinName dio2, PinName dio3, PinName dio4, PinName dio5 );
     SX1272( RadioEvents_t *events );
     virtual ~SX1272( );
     
@@ -124,21 +128,18 @@
      * @param status Radio status. [RF_IDLE, RX_RUNNING, TX_RUNNING]
      */
     virtual RadioState GetStatus( void ); 
-    
     /*!
      * @brief Configures the SX1272 with the given modem
      *
      * @param [IN] modem Modem to be used [0: FSK, 1: LoRa] 
      */
     virtual void SetModem( RadioModems_t modem );
-
     /*!
      * @brief Sets the channel frequency
      *
      * @param [IN] freq         Channel RF frequency
      */
     virtual void SetChannel( uint32_t freq );
-    
     /*!
      * @brief Sets the channels configuration
      *
@@ -149,7 +150,6 @@
      * @retval isFree         [true: Channel is free, false: Channel is not free]
      */
     virtual bool IsChannelFree( RadioModems_t modem, uint32_t freq, int16_t rssiThresh );
-    
     /*!
      * @brief Generates a 32 bits random value based on the RSSI readings
      *
@@ -161,7 +161,6 @@
      * @retval randomValue    32 bits random value
      */
     virtual uint32_t Random( void );
-    
     /*!
      * @brief Sets the reception parameters
      *
@@ -183,8 +182,8 @@
      * @param [IN] preambleLen  Sets the Preamble length ( LoRa only )
      *                          FSK : N/A ( set to 0 )
      *                          LoRa: Length in symbols ( the hardware adds 4 more symbols )
-     * @param [IN] symbTimeout  Sets the RxSingle timeout value ( LoRa only )
-     *                          FSK : N/A ( set to 0 )
+     * @param [IN] symbTimeout  Sets the RxSingle timeout value
+     *                          FSK : timeout number of bytes
      *                          LoRa: timeout in symbols
      * @param [IN] fixLen       Fixed length packets [0: variable, 1: fixed]
      * @param [IN] payloadLen   Sets payload length when fixed lenght is used
@@ -204,7 +203,6 @@
                                uint8_t payloadLen,
                                bool crcOn, bool freqHopOn, uint8_t hopPeriod,
                                bool iqInverted, bool rxContinuous );
-    
     /*!
      * @brief Sets the transmission parameters
      *
@@ -232,14 +230,20 @@
      * @param [IN] iqInverted   Inverts IQ signals ( LoRa only )
      *                          FSK : N/A ( set to 0 )
      *                          LoRa: [0: not inverted, 1: inverted]
-     * @param [IN] timeout      Transmission timeout [us]
+     * @param [IN] timeout      Transmission timeout [ms]
      */
     virtual void SetTxConfig( RadioModems_t modem, int8_t power, uint32_t fdev,
                               uint32_t bandwidth, uint32_t datarate,
                               uint8_t coderate, uint16_t preambleLen,
                               bool fixLen, bool crcOn, bool freqHopOn,
                               uint8_t hopPeriod, bool iqInverted, uint32_t timeout );
-    
+    /*!
+     * @brief Checks if the given RF frequency is supported by the hardware
+     *
+     * @param [IN] frequency RF frequency to be checked
+     * @retval isSupported [true: supported, false: unsupported]
+     */
+    virtual bool CheckRfFrequency( uint32_t frequency ) = 0;
     /*!
      * @brief Computes the packet time on air for the given payload
      *
@@ -250,8 +254,7 @@
      *
      * @retval airTime        Computed airTime for the given packet payload length
      */
-    virtual double TimeOnAir ( RadioModems_t modem, uint8_t pktLen );
-    
+    virtual uint32_t TimeOnAir ( RadioModems_t modem, uint8_t pktLen );
     /*!
      * @brief Sends the buffer of size. Prepares the packet to be sent and sets
      *        the radio in transmission
@@ -260,43 +263,44 @@
      * @param [IN]: size       Buffer size
      */
     virtual void Send( uint8_t *buffer, uint8_t size );
-    
     /*!
      * @brief Sets the radio in sleep mode
      */
     virtual void Sleep( void );
-    
     /*!
      * @brief Sets the radio in standby mode
      */
     virtual void Standby( void );
-    
+    /*!
+     * @brief Sets the radio in CAD mode
+     */
+    virtual void StartCad( void );
     /*!
      * @brief Sets the radio in reception mode for the given time
-     * @param [IN] timeout Reception timeout [us]
+     * @param [IN] timeout Reception timeout [ms]
      *                     [0: continuous, others timeout]
      */
     virtual void Rx( uint32_t timeout );
-    
     /*!
      * @brief Sets the radio in transmission mode for the given time
-     * @param [IN] timeout Transmission timeout [us]
+     * @param [IN] timeout Transmission timeout [ms]
      *                     [0: continuous, others timeout]
      */
     virtual void Tx( uint32_t timeout );
-    
     /*!
-     * @brief Start a Channel Activity Detection
+     * @brief Sets the radio in continuous wave transmission mode
+     *
+     * @param [IN]: freq       Channel RF frequency
+     * @param [IN]: power      Sets the output power [dBm]
+     * @param [IN]: time       Transmission mode timeout [s]
      */
-    virtual void StartCad( void );    
-    
+    virtual void SetTxContinuousWave( uint32_t freq, int8_t power, uint16_t time );
     /*!
      * @brief Reads the current RSSI value
      *
      * @retval rssiValue Current RSSI value in [dBm]
      */
     virtual int16_t GetRssi ( RadioModems_t modem );
-    
     /*!
      * @brief Writes the radio register at the specified address
      *
@@ -304,7 +308,6 @@
      * @param [IN]: data New register value
      */
     virtual void Write ( uint8_t addr, uint8_t data ) = 0;
-    
     /*!
      * @brief Reads the radio register at the specified address
      *
@@ -312,7 +315,6 @@
      * @retval data Register value
      */
     virtual uint8_t Read ( uint8_t addr ) = 0;
-    
     /*!
      * @brief Writes multiple radio registers starting at address
      *
@@ -321,7 +323,6 @@
      * @param [IN] size   Number of registers to be written
      */
     virtual void Write( uint8_t addr, uint8_t *buffer, uint8_t size ) = 0;
-    
     /*!
      * @brief Reads multiple radio registers starting at address
      *
@@ -330,7 +331,6 @@
      * @param [IN] size Number of registers to be read
      */
     virtual void Read ( uint8_t addr, uint8_t *buffer, uint8_t size ) = 0;
-    
     /*!
      * @brief Writes the buffer contents to the SX1272 FIFO
      *
@@ -338,7 +338,6 @@
      * @param [IN] size Number of bytes to be written to the FIFO
      */
     virtual void WriteFifo( uint8_t *buffer, uint8_t size ) = 0;
-
     /*!
      * @brief Reads the contents of the SX1272 FIFO
      *
@@ -350,7 +349,7 @@
      * @brief Resets the SX1272
      */
     virtual void Reset( void ) = 0;
-    
+
     /*!
      * @brief Sets the maximum payload length.
      *
@@ -358,11 +357,20 @@
      * @param [IN] max        Maximum payload length in bytes
      */
     virtual void SetMaxPayloadLength( RadioModems_t modem, uint8_t max );
-    
+
+    /*!
+     * \brief Sets the network to public or private. Updates the sync byte.
+     *
+     * \remark Applies to LoRa modem only
+     *
+     * \param [IN] enable if true, it enables a public network
+     */
+    virtual void SetPublicNetwork( bool enable );
+
     //-------------------------------------------------------------------------
     //                        Board relative functions
     //-------------------------------------------------------------------------
-    
+
 protected:
     /*!
      * @brief Initializes the radio I/Os pins interface
@@ -378,7 +386,7 @@
      * @brief Initializes the radio SPI
      */
     virtual void SpiInit( void ) = 0;
-    
+
     /*!
      * @brief Initializes DIO IRQ handlers
      *
@@ -394,6 +402,13 @@
     virtual void IoDeInit( void ) = 0;
 
     /*!
+     * @brief Sets the radio output power.
+     *
+     * @param [IN] power Sets the RF output power
+     */
+    virtual void SetRfTxPower( int8_t power ) = 0;
+
+    /*!
      * @brief Gets the board PA selection configuration
      *
      * @param [IN] channel Channel frequency in Hz
@@ -421,21 +436,13 @@
     virtual void AntSwDeInit( void ) = 0;
 
     /*!
-     * @brief Controls the antena switch if necessary.
+     * @brief Controls the antenna switch if necessary.
      *
      * \remark see errata note
      *
-     * @param [IN] rxTx [1: Tx, 0: Rx]
+     * @param [IN] opMode Current radio operating mode
      */
-    virtual void SetAntSw( uint8_t rxTx ) = 0;
-    
-    /*!
-     * @brief Checks if the given RF frequency is supported by the hardware
-     *
-     * @param [IN] frequency RF frequency to be checked
-     * @retval isSupported [true: supported, false: unsupported]
-     */
-    virtual bool CheckRfFrequency( uint32_t frequency ) = 0;
+    virtual void SetAntSw( uint8_t opMode ) = 0;
 protected:
 
     /*!
@@ -483,7 +490,7 @@
      * @brief Tx & Rx timeout timer callback
      */
     virtual void OnTimeoutIrq( void );
-    
+
     /*!
      * Returns the known FSK bandwidth registers value
      *