Radnoumane Mossabely
/
Serre_auto_p2p_master
Peer to peer connection to switch on a led on slave
main.cpp
- Committer:
- radnoumane
- Date:
- 2018-03-21
- Revision:
- 1:3ad74105ea9a
- Parent:
- 0:eba1236b9395
File content as of revision 1:3ad74105ea9a:
#include "mbed.h" #include "main.h" #include "sx1272-hal.h" #include "debug.h" /* Set this flag to '1' to display debug messages on the console */ #define DEBUG_MESSAGE 1 /* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */ #define USE_MODEM_LORA 1 #define USE_MODEM_FSK !USE_MODEM_LORA #define RF_FREQUENCY 868000000 // Hz #define TX_OUTPUT_POWER 14 // 14 dBm #if USE_MODEM_LORA == 1 #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 #elif USE_MODEM_FSK == 1 #define FSK_FDEV 25000 // Hz #define FSK_DATARATE 19200 // bps #define FSK_BANDWIDTH 50000 // Hz #define FSK_AFC_BANDWIDTH 83333 // Hz #define FSK_PREAMBLE_LENGTH 5 // Same for Tx and Rx #define FSK_FIX_LENGTH_PAYLOAD_ON false #define FSK_CRC_ENABLED true #else #error "Please define a modem in the compiler options." #endif #define RX_TIMEOUT_VALUE 3500 // in ms #define BUFFER_SIZE 32 // Define the payload size here #if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) ) DigitalOut led( LED2 ); #else DigitalOut led( LED1 ); #endif /* * 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 ); const uint8_t PingMsg[] = "PING"; const uint8_t PongMsg[] = "PONG"; const uint8_t Coucou[] = "Coucou"; const uint8_t Loulou[] = "Loulou"; uint16_t BufferSize = BUFFER_SIZE; uint8_t Buffer[BUFFER_SIZE]; int16_t RssiValue = 0.0; int8_t SnrValue = 0.0; //lecture btn DigitalIn mybutton(USER_BUTTON); int main( void ) { uint8_t i; bool isMaster = true; debug( "\n\n\r SX1272 Ping Pong 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 ); #elif USE_MODEM_FSK == 1 debug("\n\n\r > FSK Mode < \n\n\r" ); Radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0, FSK_DATARATE, 0, FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON, FSK_CRC_ENABLED, 0, 0, 0, 2000 ); Radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE, 0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH, 0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, FSK_CRC_ENABLED, 0, 0, false, true ); #else #error "Please define a modem in the compiler options." #endif debug_if( DEBUG_MESSAGE, "Starting ON/OFF LED loop\r\n" ); led = 0; Radio.Rx( RX_TIMEOUT_VALUE ); while( 1 ) { switch( State ) { case RX: debug("RX ?"); if( BufferSize > 0 ) { //buffer contient des données if( strncmp( ( const char* )Buffer, ( const char* )Loulou, 6 ) == 0 ) { debug("LED OK \r\n..."); } } State = LOWPOWER; break; case TX: //debug("state = TX\r\n"); //led = !led; if (mybutton == 0) { debug("Coucou\r\n"); debug("TX \r\n"); strcpy( ( char* )Buffer, ( char* )Coucou ); for( i = 6; i < BufferSize; i++ ) { Buffer[i] = i - 6; } wait_ms( 10 ); Radio.Send( Buffer, BufferSize ); //debug(State); } Radio.Rx( RX_TIMEOUT_VALUE ); State = LOWPOWER; break; case RX_TIMEOUT: debug("state = RX_TIMEOUT\r\n"); if (mybutton == 0) { debug("\r\n"); debug("allumage Led \r\n"); strcpy( ( char* )Buffer, ( char* )Coucou ); for( i = 6; i < BufferSize; i++ ) { Buffer[i] = i - 6; } wait_ms( 10 ); Radio.Send( Buffer, BufferSize ); //debug(State); } else { Radio.Rx( RX_TIMEOUT_VALUE ); } State = LOWPOWER; break; case RX_ERROR: debug("state = RX_ERROR\r\n"); State = LOWPOWER; break; case TX_TIMEOUT: debug("state = TX_TIMEOUT\r\n"); Radio.Rx( RX_TIMEOUT_VALUE ); State = LOWPOWER; break; case LOWPOWER: // debug("state = LOWPOWER\r\n"); //State = TX; break; default: debug("default\r\n"); State = LOWPOWER; break; } } } void OnTxDone( void ) { Radio.Sleep( ); State = TX; debug_if( DEBUG_MESSAGE, "> Transmission terminee\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, "> Reception terminee \n\r" ); } void OnTxTimeout( void ) { Radio.Sleep( ); State = TX_TIMEOUT; debug_if( DEBUG_MESSAGE, "> Transmission timeout\n\r" ); } void OnRxTimeout( void ) { Radio.Sleep( ); Buffer[BufferSize] = 0; State = RX_TIMEOUT; debug_if( DEBUG_MESSAGE, "> Reception timeout\n\r" ); } void OnRxError( void ) { Radio.Sleep( ); State = RX_ERROR; debug_if( DEBUG_MESSAGE, "> Erreur de reception \n\r" ); }