main.cpp

00001 /*
00002  / _____)             _              | |
00003 ( (____  _____ ____ _| |_ _____  ____| |__
00004  \____ \| ___ |    (_   _) ___ |/ ___)  _ \
00005  _____) ) ____| | | || |_| ____( (___| | | |
00006 (______/|_____)_|_|_| \__)_____)\____)_| |_|
00007     ( C )2014 Semtech
00008 
00009 Description: Tx Continuous Wave implementation
00010 
00011 License: Revised BSD License, see LICENSE.TXT file include in the project
00012 
00013 Maintainers: Miguel Luis, Gregory Cristian and Nicolas Huguenin
00014 */
00015 #include "mbed.h"
00016 #include "sx1276-hal.h"
00017 #include "debug.h"
00018 
00019 /* Set this flag to '1' to test the HF max output power or '0' to the the LF max output power */
00020 #define TEST_HF_OUTPUT                              1
00021 #define TEST_LF_OUTPUT = !TEST_HF_OUTPUT
00022 
00023 #define LORA_BANDWIDTH                              0         // [0: 125 kHz,
00024                                                               //  1: 250 kHz,
00025                                                               //  2: 500 kHz,
00026                                                               //  3: Reserved]
00027 #define LORA_SPREADING_FACTOR                       9         // [SF7..SF12]
00028 #define LORA_CODINGRATE                             1         // [1: 4/5,
00029                                                               //  2: 4/6,
00030                                                               //  3: 4/7,
00031                                                               //  4: 4/8]
00032 #define LORA_PREAMBLE_LENGTH                        8         // Same for Tx and Rx
00033 #define LORA_SYMBOL_TIMEOUT                         5         // Symbols
00034 #define LORA_FIX_LENGTH_PAYLOAD_ON                  false
00035 #define LORA_FHSS_ENABLED                           false  
00036 #define LORA_NB_SYMB_HOP                            4         // Symbols
00037 #define LORA_IQ_INVERSION_ON                        false
00038 #define LORA_CRC_ENABLED                            true
00039 
00040 /*!
00041  * Radio events function pointer
00042  */
00043 static RadioEvents_t RadioEvents;
00044 
00045 /*!
00046  * Tx continuous wave parameters
00047  */
00048 struct
00049 {
00050     uint32_t RfFrequency;
00051     uint32_t TxOutputPower;
00052 }TxCwParams;
00053 
00054 /*!
00055  * Radio object
00056  */
00057 SX1276MB1xAS Radio( NULL );
00058 
00059 /*!
00060  * \brief Function executed on Radio Tx Timeout event
00061  */
00062 void OnRadioTxTimeout( void )
00063 {
00064     // Restarts continuous wave transmission when timeout expires after 65535 seconds
00065     Radio.SetTxContinuousWave( TxCwParams.RfFrequency, TxCwParams.TxOutputPower, 65535 );
00066 }
00067 
00068 /**
00069  * Main application entry point.
00070  */
00071 int main( void )
00072 {
00073     debug( "\n\r\n\r     SX1276 Continuous Wave at full power Demo Application \n\r" );
00074         
00075 #if defined TARGET_NUCLEO_L152RE
00076     debug( "         > Nucleo-L152RE Platform <\r\n" );
00077 #elif defined TARGET_KL25Z
00078     debug( "         > KL25Z Platform <\r\n" );
00079 #elif defined TARGET_LPC11U6X
00080     debug( "         > LPC11U6X Platform <\r\n" );
00081 #else
00082     debug( "         > Untested Platform <\r\n" );
00083 #endif
00084 
00085 #if( TEST_HF_OUTPUT == 1 )
00086 
00087     if( Radio.DetectBoardType( ) == SX1276MB1LAS ) // 
00088     {
00089         debug("\r\n     TEST_HF_OUTPUT on SX1276MB1LAS: 20 dBm at 915 MHz \r\n" );
00090 
00091         TxCwParams.RfFrequency = 915e6;
00092         TxCwParams.TxOutputPower = 20;
00093     }
00094     else
00095     {   // SX1276MB1MAS
00096         debug("\r\n     TEST_HF_OUTPUT on SX1276MB1MAS: 14 dBm at 868 MHz \r\n" );
00097 
00098         TxCwParams.RfFrequency = 868e6;
00099         TxCwParams.TxOutputPower = 14;
00100     }
00101     
00102 #else //if( TEST_LF_OUTPUT == 1 )
00103 
00104     debug("\r\n     TEST_LF_OUTPUT on SX1276MB1xAS: 14 dBm at 434 MHz \r\n" );
00105     TxCwParams.RfFrequency = 433e6;
00106     TxCwParams.TxOutputPower = 14;
00107 
00108 #endif
00109 
00110     // Radio initialization
00111     RadioEvents.TxTimeout = OnRadioTxTimeout;
00112     Radio.Init( &RadioEvents );
00113 
00114     // Start continuous wave transmission fucntion expires after 65535 seconds
00115     Radio.SetTxContinuousWave( TxCwParams.RfFrequency, TxCwParams.TxOutputPower, 65535 );
00116 
00117     debug( "Start main loop: \r\n" );
00118     // Blink LEDs just to show some activity
00119     while( 1 )
00120     {
00121         debug( "Continuous Wave activated... \r\n" );
00122         wait_ms( 200 );
00123     }
00124 }