File content as of revision 0:d5e61ad8edd9:

/*
 / _____)             _              | |
( (____  _____ ____ _| |_ _____  ____| |__
 \____ \| ___ |    (_   _) ___ |/ ___)  _ \
 _____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
    ( C )2014 Semtech

Description: Tx Continuous Wave implementation

License: Revised BSD License, see LICENSE.TXT file include in the project

Maintainers: Miguel Luis, Gregory Cristian and Nicolas Huguenin
*/
#include "mbed.h"
#include "sx1276-hal.h"

#define TEST_HF_OUTPUT                              1
#define TEST_LF_OUTPUT = !TEST_HF_OUTPUT

#define LORA_BANDWIDTH                              0         // [0: 125 kHz,
                                                              //  1: 250 kHz,
                                                              //  2: 500 kHz,
                                                              //  3: Reserved]
#define LORA_SPREADING_FACTOR                       9         // [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_FIX_LENGTH_PAYLOAD_ON                  false
#define LORA_IQ_INVERSION_ON                        false

SX1276MB1xAS Radio( NULL, NULL, NULL, NULL, NULL );

#if USE_LEDS
    DigitalOut Led1( LED1 );
    DigitalOut Led2( LED2 );
    DigitalOut Led3( LED3 );
#else
    bool Led1 = 0;
    bool Led2 = 0;
    bool Led3 = 0;
#endif

static Timeout LedTimer;
volatile bool Led1TimerEvent = false;
volatile bool Led2TimerEvent = false;
volatile bool Led3TimerEvent = false;

/*!
 * \brief Function executed on Led 1 Timeout event
 */
void OnLed1TimerEvent( void )
{
    Led1TimerEvent = true;
}

/*!
 * \brief Function executed on Led 2 Timeout event
 */
void OnLed2TimerEvent( void )
{
    Led2TimerEvent = true;
}

/*!
 * \brief Function executed on Led 3 Timeout event
 */
void OnLed3TimerEvent( void )
{
    Led3TimerEvent = true;
}

void PrintLeds( )
{
    #if !USE_LEDS
        char charLed1 = ( Led1 == true ) ? '0' : 'x';
        char charLed2 = ( Led2 == true ) ? '0' : 'x';
        char charLed3 = ( Led3 == true ) ? '0' : 'x';
        debug( "%c%c%c\r\n", charLed1, charLed2, charLed3 );
    #endif
}

/**
 * Main application entry point.
 */
int main( void )
{
    uint8_t TxOuputPower = 0;

    /**********************************************/
    /*                  WARNING                   */
    /* The below settings can damage the chipset  */
    /* if wrongly used. DO NOT CHANGE THE VALUES! */
    /*                                            */
    /**********************************************/
    
#if TEST_HF_OUTPUT == 1

    if( Radio.DetectBoardType( ) == SX1276MB1LAS ) // 
    {
        Radio.SetChannel( 915000000 );
        TxOuputPower = 14;
        Radio.Write( 0x01, 0x88 );
        Radio.Write( 0x3D, 0xA1 );
        Radio.Write( 0x36, 0x01 );
        Radio.Write( 0x1e, 0x08 );
    }
    else
    {   // SX1276MB1MAS
        Radio.SetChannel( 868000000 );
        TxOuputPower = 20;
        Radio.Write( 0x01, 0x80 );
        Radio.Write( 0x44, 0x7B );
        Radio.Write( 0x3D, 0xA1 );
        Radio.Write( 0x36, 0x01 );
        Radio.Write( 0x1e, 0x08 );
        Radio.Write( 0x45, 0xDF );
        Radio.Write( 0x46, 0x03 );
        Radio.Write( 0x4D, 0x87 );
        Radio.Write( 0x52, 0x60 );
    }
    
#elif TEST_LF_OUTPUT == 1

    Radio.SetChannel( 433000000 );
    TxOuputPower = 14;
    Radio.Write( 0x01, 0x88 );
    Radio.Write( 0x3D, 0xA1 );
    Radio.Write( 0x36, 0x01 );
    Radio.Write( 0x1e, 0x08 );

#endif

    Radio.SetTxConfig( MODEM_LORA, TxOuputPower, 0, LORA_BANDWIDTH,
                                   LORA_SPREADING_FACTOR, LORA_CODINGRATE,
                                   LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
                                   true, LORA_IQ_INVERSION_ON, 3000000 );

    // Switch LED 1 ON
    Led1 = 1;
    LedTimer.attach_us( OnLed1TimerEvent, 90000 );
    
    // Sets the radio in Tx mode
    Radio.Send( NULL, 0 );

    debug( "Start main loop: \r\n" );
    // Blink LEDs just to show some activity
    while( 1 )
    {
        if( Led1TimerEvent == true )
        {
            Led1TimerEvent = false;
            
            // Switch LED 1 OFF
            Led1 = 0;
            // Switch LED 2 ON
            Led2 = 1;
            
            LedTimer.attach_us( OnLed2TimerEvent, 90000 );
            PrintLeds( );
        }

        if( Led2TimerEvent == true )
        {
            Led2TimerEvent = false;
            
            // Switch LED 2 OFF
            Led2 = 0;
            // Switch LED 3 ON
            Led3 = 1;
            
            LedTimer.attach_us( OnLed3TimerEvent, 90000 );
            PrintLeds( );
        }
    
        if( Led3TimerEvent == true )
        {
            Led3TimerEvent = false;
            
            // Switch LED 3 OFF
            Led3 = 0;
            // Switch LED 1 ON
            Led1 = 1;
            
            LedTimer.attach_us( OnLed1TimerEvent, 90000 );
            PrintLeds( );
        }    
    }
}