File content as of revision 15:a99503d744c3:

///////////////////////////////////////////////// BIBLIOTHEQUE ///////////////////////////////////////////////////////////////////////////////////////

#include "mbed.h"
#include "main.h"
#include "sx1272-hal.h"
#include "debug.h"
#include "sx1272.h"


Serial pc(USBTX, USBRX);

#define PCBAUD 9600

//////////////////////////////////////////////// DEFINITION OUTIL DEBUG ///////////////////////////////////////////////////////////////////////////

/* Set this flag to '1' to display debug messages on the console */


#define DEBUG_MESSAGE   1                                                               //permet d'afficher des messages sur le terminal


////////////////////////////////////////////////////////////////////// DEFINITION MODULATION /////////////////////////////////////////////////////

/* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */


#define USE_MODEM_LORA  1                                                               //On utilise LoRa

#define RF_FREQUENCY                                    868000000 // Hz
#define TX_OUTPUT_POWER                                 14        // dBm

#if USE_MODEM_LORA == 1                                                                 // Definition des parametres de LoRa

    #define LORA_BANDWIDTH                              2         // [0: 125 kHz,
                                                                  //  1: 250 kHz,
                                                                  //  2: 500 kHz,
                                                                  //  3: Reserved]
    #define LORA_SPREADING_FACTOR                       7         // [SF7..SF12]        // ???????????????
    #define LORA_CODINGRATE                             1         // [1: 4/5,           // ???????????????
                                                                  //  2: 4/6,           // ???????????????
                                                                  //  3: 4/7,
                                                                  //  4: 4/8]
    #define LORA_PREAMBLE_LENGTH                        8         // Same for Tx and Rx // ???????????????
    #define LORA_SYMBOL_TIMEOUT                         5         // Symbols            // ???????????????
    #define LORA_FIX_LENGTH_PAYLOAD_ON                  false                           // ???????????????
    #define LORA_FHSS_ENABLED                           false                           // ???????????????
    #define LORA_NB_SYMB_HOP                            4                               // ???????????????
    #define LORA_IQ_INVERSION_ON                        false                           // ???????????????
    #define LORA_CRC_ENABLED                            true                            // ???????????????


#else
    #error "Please define a modem in the compiler options."                             //ERREUR si ni LoRa ni FSK n'a ete active
#endif

#define RX_TIMEOUT_VALUE                                10000      // in ms
#define BUFFER_SIZE                                     32        // Define the payload size here





//////////////////////////////////////////////////// GLOBAL VARIABLES DECLARATIONS /////////////////////////////////////////////////////////////////////

typedef enum
{
    LOWPOWER = 0,
    IDLE,

    RX,
    RX_TIMEOUT,
    RX_ERROR,

    TX,
    TX_TIMEOUT,

    CAD,
    CAD_DONE
    
}AppStates_t;

volatile AppStates_t State = LOWPOWER;

/*!
 * Radio events function pointer
 */
 
 
static RadioEvents_t RadioEvents;



/*
 *  Global variables declarations
 */
 
 
SX1272MB2xAS Radio( NULL );

uint16_t BufferSize = BUFFER_SIZE;                                                      //Taille de la memoire tampon
uint8_t Buffer[BUFFER_SIZE];

int16_t RssiValue = 0.0;                                                                //Rssi = Received Signal Strentgh Indication
int8_t SnrValue = 0.0;          


////////////////////////////////////////////////////////////////////// MAIN /////////////////////////////////////////////////////////


int main( void )
{
    pc.baud(PCBAUD);
    
    debug( "\n\n\r     SX1272 X Y Z Demo Application \n\n\r" );

    // Initialize Radio driver
    RadioEvents.TxDone = OnTxDone;
    RadioEvents.RxDone = OnRxDone;
    RadioEvents.RxError = OnRxError;
    RadioEvents.TxTimeout = OnTxTimeout;
    RadioEvents.RxTimeout = OnRxTimeout;
    Radio.Init( &RadioEvents );
    
     // verify the connection with the board
    while( Radio.Read( REG_VERSION ) == 0x00  )
    {
        debug( "Radio could not be detected!\n\r", NULL );
        wait( 1 );
    }
    
    debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1272MB2XAS ) ), "\n\r > Board Type: SX1272MB2xAS < \n\r" );

    Radio.SetChannel( RF_FREQUENCY ); 

#if USE_MODEM_LORA == 1

    debug_if( LORA_FHSS_ENABLED, "\n\n\r             > LORA FHSS Mode < \n\n\r" );
    debug_if( !LORA_FHSS_ENABLED, "\n\n\r             > LORA Mode < \n\n\r" );

    Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
                         LORA_SPREADING_FACTOR, LORA_CODINGRATE,
                         LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
                         LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
                         LORA_IQ_INVERSION_ON, 2000 );

    Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
                         LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
                         LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON, 0,
                         LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
                         LORA_IQ_INVERSION_ON, true );


#else

#error "Please define a modem in the compiler options."

#endif

    Radio.Rx( 3500 );
    State = RX;
    pc.printf("\n\r ++++++++++++++++++++++++++++++++       \n\r");
    
    while(1)
    {

                if( BufferSize > 0 )
                        {
                            if( strncmp( (const char *)Buffer, "B", 1)==0)
                            {
                    
                                pc.printf("%s,\n", Buffer);
                                pc.printf("\n\r");
                        
                    
                            }
                        
                        BufferSize = 0;
                        Radio.Rx( 3500 );
                        }
                
                        
           
        
    }
}








///////////////////////////////////////// DECLARATION DES FONCTIONS/////////////////////////////////////////////////////

void OnTxDone( void )
{
    Radio.Sleep( );
    State = TX;
    debug_if( DEBUG_MESSAGE, "> OnTxDone\n\r" );
}

void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
{
    Radio.Sleep( );
    BufferSize = size;
    memcpy( Buffer, payload, BufferSize );
    RssiValue = rssi;
    SnrValue = snr;
    State = RX;
    debug_if( DEBUG_MESSAGE, "> OnRxDone\n\r" );
}

void OnTxTimeout( void )
{
    Radio.Sleep( );
    State = TX_TIMEOUT;
    debug_if( DEBUG_MESSAGE, "> OnTxTimeout\n\r" );
}

void OnRxTimeout( void )
{
    //Radio.Sleep( );
    Buffer[BufferSize] = 0;
    State = RX_TIMEOUT;
    debug_if( DEBUG_MESSAGE, "> OnRxTimeout\n\r" );
}

void OnRxError( void )
{
    State = RX_ERROR;
    debug_if( DEBUG_MESSAGE, "> OnRxError\n\r" );
}