Radnoumane Mossabely / Mbed 2 deprecated Serre_auto_p2p_slave

Peer to peer connection to switch on a led on slave

Dependencies:   SX1272Lib mbed

main.cpp@0:1392ebe3241b, 2018-03-21 (annotated)

Committer:
radnoumane
Date:
Wed Mar 21 13:18:51 2018 +0000
Revision:
0:1392ebe3241b
first commit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
radnoumane 0:1392ebe3241b 1 #include "mbed.h"
radnoumane 0:1392ebe3241b 2 #include "main.h"
radnoumane 0:1392ebe3241b 3 #include "sx1272-hal.h"
radnoumane 0:1392ebe3241b 4 #include "debug.h"
radnoumane 0:1392ebe3241b 5
radnoumane 0:1392ebe3241b 6 /* Set this flag to '1' to display debug messages on the console */
radnoumane 0:1392ebe3241b 7 #define DEBUG_MESSAGE 1
radnoumane 0:1392ebe3241b 8
radnoumane 0:1392ebe3241b 9 /* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */
radnoumane 0:1392ebe3241b 10 #define USE_MODEM_LORA 1
radnoumane 0:1392ebe3241b 11 #define USE_MODEM_FSK !USE_MODEM_LORA
radnoumane 0:1392ebe3241b 12
radnoumane 0:1392ebe3241b 13 #define RF_FREQUENCY 868000000 // Hz
radnoumane 0:1392ebe3241b 14 #define TX_OUTPUT_POWER 14 // 14 dBm
radnoumane 0:1392ebe3241b 15
radnoumane 0:1392ebe3241b 16 #if USE_MODEM_LORA == 1
radnoumane 0:1392ebe3241b 17
radnoumane 0:1392ebe3241b 18 #define LORA_BANDWIDTH 2 // [0: 125 kHz,
radnoumane 0:1392ebe3241b 19 // 1: 250 kHz,
radnoumane 0:1392ebe3241b 20 // 2: 500 kHz,
radnoumane 0:1392ebe3241b 21 // 3: Reserved]
radnoumane 0:1392ebe3241b 22 #define LORA_SPREADING_FACTOR 7 // [SF7..SF12]
radnoumane 0:1392ebe3241b 23 #define LORA_CODINGRATE 1 // [1: 4/5,
radnoumane 0:1392ebe3241b 24 // 2: 4/6,
radnoumane 0:1392ebe3241b 25 // 3: 4/7,
radnoumane 0:1392ebe3241b 26 // 4: 4/8]
radnoumane 0:1392ebe3241b 27 #define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
radnoumane 0:1392ebe3241b 28 #define LORA_SYMBOL_TIMEOUT 5 // Symbols
radnoumane 0:1392ebe3241b 29 #define LORA_FIX_LENGTH_PAYLOAD_ON false
radnoumane 0:1392ebe3241b 30 #define LORA_FHSS_ENABLED false
radnoumane 0:1392ebe3241b 31 #define LORA_NB_SYMB_HOP 4
radnoumane 0:1392ebe3241b 32 #define LORA_IQ_INVERSION_ON false
radnoumane 0:1392ebe3241b 33 #define LORA_CRC_ENABLED true
radnoumane 0:1392ebe3241b 34
radnoumane 0:1392ebe3241b 35 #elif USE_MODEM_FSK == 1
radnoumane 0:1392ebe3241b 36
radnoumane 0:1392ebe3241b 37 #define FSK_FDEV 25000 // Hz
radnoumane 0:1392ebe3241b 38 #define FSK_DATARATE 19200 // bps
radnoumane 0:1392ebe3241b 39 #define FSK_BANDWIDTH 50000 // Hz
radnoumane 0:1392ebe3241b 40 #define FSK_AFC_BANDWIDTH 83333 // Hz
radnoumane 0:1392ebe3241b 41 #define FSK_PREAMBLE_LENGTH 5 // Same for Tx and Rx
radnoumane 0:1392ebe3241b 42 #define FSK_FIX_LENGTH_PAYLOAD_ON false
radnoumane 0:1392ebe3241b 43 #define FSK_CRC_ENABLED true
radnoumane 0:1392ebe3241b 44
radnoumane 0:1392ebe3241b 45 #else
radnoumane 0:1392ebe3241b 46 #error "Please define a modem in the compiler options."
radnoumane 0:1392ebe3241b 47 #endif
radnoumane 0:1392ebe3241b 48
radnoumane 0:1392ebe3241b 49 #define RX_TIMEOUT_VALUE 3500 // in ms
radnoumane 0:1392ebe3241b 50 #define BUFFER_SIZE 32 // Define the payload size here
radnoumane 0:1392ebe3241b 51
radnoumane 0:1392ebe3241b 52 #if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
radnoumane 0:1392ebe3241b 53 DigitalOut led( LED2 );
radnoumane 0:1392ebe3241b 54 #else
radnoumane 0:1392ebe3241b 55 DigitalOut led( LED1 );
radnoumane 0:1392ebe3241b 56 #endif
radnoumane 0:1392ebe3241b 57
radnoumane 0:1392ebe3241b 58 /*
radnoumane 0:1392ebe3241b 59 * Global variables declarations
radnoumane 0:1392ebe3241b 60 */
radnoumane 0:1392ebe3241b 61 typedef enum {
radnoumane 0:1392ebe3241b 62 LOWPOWER = 0,
radnoumane 0:1392ebe3241b 63 IDLE,
radnoumane 0:1392ebe3241b 64
radnoumane 0:1392ebe3241b 65 RX,
radnoumane 0:1392ebe3241b 66 RX_TIMEOUT,
radnoumane 0:1392ebe3241b 67 RX_ERROR,
radnoumane 0:1392ebe3241b 68
radnoumane 0:1392ebe3241b 69 TX,
radnoumane 0:1392ebe3241b 70 TX_TIMEOUT,
radnoumane 0:1392ebe3241b 71
radnoumane 0:1392ebe3241b 72 CAD,
radnoumane 0:1392ebe3241b 73 CAD_DONE
radnoumane 0:1392ebe3241b 74 } AppStates_t;
radnoumane 0:1392ebe3241b 75
radnoumane 0:1392ebe3241b 76 volatile AppStates_t State = RX;
radnoumane 0:1392ebe3241b 77
radnoumane 0:1392ebe3241b 78 /*!
radnoumane 0:1392ebe3241b 79 * Radio events function pointer
radnoumane 0:1392ebe3241b 80 */
radnoumane 0:1392ebe3241b 81 static RadioEvents_t RadioEvents;
radnoumane 0:1392ebe3241b 82
radnoumane 0:1392ebe3241b 83 /*
radnoumane 0:1392ebe3241b 84 * Global variables declarations
radnoumane 0:1392ebe3241b 85 */
radnoumane 0:1392ebe3241b 86 SX1272MB2xAS Radio( NULL );
radnoumane 0:1392ebe3241b 87
radnoumane 0:1392ebe3241b 88 const uint8_t PingMsg[] = "PING";
radnoumane 0:1392ebe3241b 89 const uint8_t PongMsg[] = "PONG";
radnoumane 0:1392ebe3241b 90 const uint8_t Coucou[] = "Coucou";
radnoumane 0:1392ebe3241b 91 const uint8_t Loulou[] = "Loulou";
radnoumane 0:1392ebe3241b 92
radnoumane 0:1392ebe3241b 93 uint16_t BufferSize = BUFFER_SIZE;
radnoumane 0:1392ebe3241b 94 uint8_t Buffer[BUFFER_SIZE];
radnoumane 0:1392ebe3241b 95
radnoumane 0:1392ebe3241b 96 int16_t RssiValue = 0.0;
radnoumane 0:1392ebe3241b 97 int8_t SnrValue = 0.0;
radnoumane 0:1392ebe3241b 98
radnoumane 0:1392ebe3241b 99
radnoumane 0:1392ebe3241b 100 //lecture btn
radnoumane 0:1392ebe3241b 101 DigitalIn mybutton(USER_BUTTON);
radnoumane 0:1392ebe3241b 102
radnoumane 0:1392ebe3241b 103 int main( void )
radnoumane 0:1392ebe3241b 104 {
radnoumane 0:1392ebe3241b 105 uint8_t i;
radnoumane 0:1392ebe3241b 106 bool isMaster = true;
radnoumane 0:1392ebe3241b 107
radnoumane 0:1392ebe3241b 108 debug( "\n\n\r SX1272 Ping Pong Demo Application \n\n\r" );
radnoumane 0:1392ebe3241b 109
radnoumane 0:1392ebe3241b 110 // Initialize Radio driver
radnoumane 0:1392ebe3241b 111 RadioEvents.TxDone = OnTxDone;
radnoumane 0:1392ebe3241b 112 RadioEvents.RxDone = OnRxDone;
radnoumane 0:1392ebe3241b 113 RadioEvents.RxError = OnRxError;
radnoumane 0:1392ebe3241b 114 RadioEvents.TxTimeout = OnTxTimeout;
radnoumane 0:1392ebe3241b 115 RadioEvents.RxTimeout = OnRxTimeout;
radnoumane 0:1392ebe3241b 116 Radio.Init( &RadioEvents );
radnoumane 0:1392ebe3241b 117
radnoumane 0:1392ebe3241b 118 // verify the connection with the board
radnoumane 0:1392ebe3241b 119 while( Radio.Read( REG_VERSION ) == 0x00 ) {
radnoumane 0:1392ebe3241b 120 debug( "Radio could not be detected!\n\r", NULL );
radnoumane 0:1392ebe3241b 121 wait( 1 );
radnoumane 0:1392ebe3241b 122 }
radnoumane 0:1392ebe3241b 123
radnoumane 0:1392ebe3241b 124 debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1272MB2XAS ) ), "\n\r > Board Type: SX1272MB2xAS < \n\r" );
radnoumane 0:1392ebe3241b 125
radnoumane 0:1392ebe3241b 126 Radio.SetChannel( RF_FREQUENCY );
radnoumane 0:1392ebe3241b 127
radnoumane 0:1392ebe3241b 128 #if USE_MODEM_LORA == 1
radnoumane 0:1392ebe3241b 129
radnoumane 0:1392ebe3241b 130 debug_if( LORA_FHSS_ENABLED, "\n\n\r > LORA FHSS Mode < \n\n\r" );
radnoumane 0:1392ebe3241b 131 debug_if( !LORA_FHSS_ENABLED, "\n\n\r > LORA Mode < \n\n\r" );
radnoumane 0:1392ebe3241b 132
radnoumane 0:1392ebe3241b 133 Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
radnoumane 0:1392ebe3241b 134 LORA_SPREADING_FACTOR, LORA_CODINGRATE,
radnoumane 0:1392ebe3241b 135 LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
radnoumane 0:1392ebe3241b 136 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
radnoumane 0:1392ebe3241b 137 LORA_IQ_INVERSION_ON, 2000 );
radnoumane 0:1392ebe3241b 138
radnoumane 0:1392ebe3241b 139 Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
radnoumane 0:1392ebe3241b 140 LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
radnoumane 0:1392ebe3241b 141 LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON, 0,
radnoumane 0:1392ebe3241b 142 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
radnoumane 0:1392ebe3241b 143 LORA_IQ_INVERSION_ON, true );
radnoumane 0:1392ebe3241b 144
radnoumane 0:1392ebe3241b 145 #elif USE_MODEM_FSK == 1
radnoumane 0:1392ebe3241b 146
radnoumane 0:1392ebe3241b 147 debug("\n\n\r > FSK Mode < \n\n\r" );
radnoumane 0:1392ebe3241b 148 Radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,
radnoumane 0:1392ebe3241b 149 FSK_DATARATE, 0,
radnoumane 0:1392ebe3241b 150 FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,
radnoumane 0:1392ebe3241b 151 FSK_CRC_ENABLED, 0, 0, 0, 2000 );
radnoumane 0:1392ebe3241b 152
radnoumane 0:1392ebe3241b 153 Radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
radnoumane 0:1392ebe3241b 154 0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
radnoumane 0:1392ebe3241b 155 0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, FSK_CRC_ENABLED,
radnoumane 0:1392ebe3241b 156 0, 0, false, true );
radnoumane 0:1392ebe3241b 157
radnoumane 0:1392ebe3241b 158 #else
radnoumane 0:1392ebe3241b 159
radnoumane 0:1392ebe3241b 160 #error "Please define a modem in the compiler options."
radnoumane 0:1392ebe3241b 161
radnoumane 0:1392ebe3241b 162 #endif
radnoumane 0:1392ebe3241b 163
radnoumane 0:1392ebe3241b 164 debug_if( DEBUG_MESSAGE, "Starting ON/OFF LED loop\r\n" );
radnoumane 0:1392ebe3241b 165
radnoumane 0:1392ebe3241b 166 led = 0;
radnoumane 0:1392ebe3241b 167
radnoumane 0:1392ebe3241b 168 Radio.Rx( RX_TIMEOUT_VALUE );
radnoumane 0:1392ebe3241b 169
radnoumane 0:1392ebe3241b 170 while( 1 ) {
radnoumane 0:1392ebe3241b 171 switch( State ) {
radnoumane 0:1392ebe3241b 172 case RX:
radnoumane 0:1392ebe3241b 173 if( BufferSize > 0 ) {
radnoumane 0:1392ebe3241b 174 if( strncmp( ( const char* )Buffer, ( const char* )Coucou, 6 ) == 0 ) {
radnoumane 0:1392ebe3241b 175 debug("LED ON");
radnoumane 0:1392ebe3241b 176 for(i=10;i<10;i++){
radnoumane 0:1392ebe3241b 177 led = 1; // LED is ON
radnoumane 0:1392ebe3241b 178 led = 0;
radnoumane 0:1392ebe3241b 179 wait(0.2); // 200 ms
radnoumane 0:1392ebe3241b 180 led = 0; // LED is OFF
radnoumane 0:1392ebe3241b 181 led= 1;
radnoumane 0:1392ebe3241b 182 wait(0.2); // 1 sec
radnoumane 0:1392ebe3241b 183 }
radnoumane 0:1392ebe3241b 184
radnoumane 0:1392ebe3241b 185 // envoi de la réponse
radnoumane 0:1392ebe3241b 186 strcpy( ( char* )Buffer, ( char* )Loulou );
radnoumane 0:1392ebe3241b 187 // We fill the buffer with numbers for the payload
radnoumane 0:1392ebe3241b 188 for( i = 6; i < BufferSize; i++ ) {
radnoumane 0:1392ebe3241b 189 Buffer[i] = i - 6;
radnoumane 0:1392ebe3241b 190 }
radnoumane 0:1392ebe3241b 191 wait_ms( 10 );
radnoumane 0:1392ebe3241b 192 Radio.Send( Buffer, BufferSize );
radnoumane 0:1392ebe3241b 193 }
radnoumane 0:1392ebe3241b 194 State = LOWPOWER;
radnoumane 0:1392ebe3241b 195 break;
radnoumane 0:1392ebe3241b 196 case TX:
radnoumane 0:1392ebe3241b 197 debug("state = TX\r\n");
radnoumane 0:1392ebe3241b 198 //led = !led;
radnoumane 0:1392ebe3241b 199 Radio.Rx( RX_TIMEOUT_VALUE );
radnoumane 0:1392ebe3241b 200 State = LOWPOWER;
radnoumane 0:1392ebe3241b 201 break;
radnoumane 0:1392ebe3241b 202 case RX_TIMEOUT:
radnoumane 0:1392ebe3241b 203 debug("state = RX_TIMEOUT\r\n");
radnoumane 0:1392ebe3241b 204 /* if( isMaster == true )
radnoumane 0:1392ebe3241b 205 {
radnoumane 0:1392ebe3241b 206 // Send the next PING frame
radnoumane 0:1392ebe3241b 207 strcpy( ( char* )Buffer, ( char* )PingMsg );
radnoumane 0:1392ebe3241b 208 for( i = 4; i < BufferSize; i++ )
radnoumane 0:1392ebe3241b 209 {
radnoumane 0:1392ebe3241b 210 Buffer[i] = i - 4;
radnoumane 0:1392ebe3241b 211 }
radnoumane 0:1392ebe3241b 212 wait_ms( 10 );
radnoumane 0:1392ebe3241b 213 Radio.Send( Buffer, BufferSize );
radnoumane 0:1392ebe3241b 214 }
radnoumane 0:1392ebe3241b 215 else
radnoumane 0:1392ebe3241b 216 {
radnoumane 0:1392ebe3241b 217 Radio.Rx( RX_TIMEOUT_VALUE );
radnoumane 0:1392ebe3241b 218 }*/
radnoumane 0:1392ebe3241b 219 State = LOWPOWER;
radnoumane 0:1392ebe3241b 220 break;
radnoumane 0:1392ebe3241b 221 case RX_ERROR:
radnoumane 0:1392ebe3241b 222 debug("state = RX_ERROR\r\n");
radnoumane 0:1392ebe3241b 223 // We have received a Packet with a CRC error, send reply as if packet was correct
radnoumane 0:1392ebe3241b 224 /* if( isMaster == true )
radnoumane 0:1392ebe3241b 225 {
radnoumane 0:1392ebe3241b 226 // Send the next PING frame
radnoumane 0:1392ebe3241b 227 strcpy( ( char* )Buffer, ( char* )PingMsg );
radnoumane 0:1392ebe3241b 228 for( i = 4; i < BufferSize; i++ )
radnoumane 0:1392ebe3241b 229 {
radnoumane 0:1392ebe3241b 230 Buffer[i] = i - 4;
radnoumane 0:1392ebe3241b 231 }
radnoumane 0:1392ebe3241b 232 wait_ms( 10 );
radnoumane 0:1392ebe3241b 233 Radio.Send( Buffer, BufferSize );
radnoumane 0:1392ebe3241b 234 }
radnoumane 0:1392ebe3241b 235 else
radnoumane 0:1392ebe3241b 236 {
radnoumane 0:1392ebe3241b 237 // Send the next PONG frame
radnoumane 0:1392ebe3241b 238 strcpy( ( char* )Buffer, ( char* )PongMsg );
radnoumane 0:1392ebe3241b 239 for( i = 4; i < BufferSize; i++ )
radnoumane 0:1392ebe3241b 240 {
radnoumane 0:1392ebe3241b 241 Buffer[i] = i - 4;
radnoumane 0:1392ebe3241b 242 }
radnoumane 0:1392ebe3241b 243 wait_ms( 10 );
radnoumane 0:1392ebe3241b 244 Radio.Send( Buffer, BufferSize );
radnoumane 0:1392ebe3241b 245 }*/
radnoumane 0:1392ebe3241b 246 State = LOWPOWER;
radnoumane 0:1392ebe3241b 247 break;
radnoumane 0:1392ebe3241b 248 case TX_TIMEOUT:
radnoumane 0:1392ebe3241b 249 debug("state = TX_TIMEOUT\r\n");
radnoumane 0:1392ebe3241b 250 Radio.Rx( RX_TIMEOUT_VALUE );
radnoumane 0:1392ebe3241b 251 State = RX;
radnoumane 0:1392ebe3241b 252 break;
radnoumane 0:1392ebe3241b 253 case LOWPOWER:
radnoumane 0:1392ebe3241b 254 // debug("state = LOWPOWER\r\n");
radnoumane 0:1392ebe3241b 255 //State = RX;
radnoumane 0:1392ebe3241b 256 break;
radnoumane 0:1392ebe3241b 257 default:
radnoumane 0:1392ebe3241b 258 debug("default\r\n");
radnoumane 0:1392ebe3241b 259 State = RX;
radnoumane 0:1392ebe3241b 260 break;
radnoumane 0:1392ebe3241b 261 }
radnoumane 0:1392ebe3241b 262
radnoumane 0:1392ebe3241b 263
radnoumane 0:1392ebe3241b 264 }
radnoumane 0:1392ebe3241b 265
radnoumane 0:1392ebe3241b 266
radnoumane 0:1392ebe3241b 267
radnoumane 0:1392ebe3241b 268 }
radnoumane 0:1392ebe3241b 269
radnoumane 0:1392ebe3241b 270 void OnTxDone( void )
radnoumane 0:1392ebe3241b 271 {
radnoumane 0:1392ebe3241b 272 Radio.Sleep( );
radnoumane 0:1392ebe3241b 273 State = TX;
radnoumane 0:1392ebe3241b 274 debug_if( DEBUG_MESSAGE, "> Transmission terminee\n\r" );
radnoumane 0:1392ebe3241b 275 }
radnoumane 0:1392ebe3241b 276
radnoumane 0:1392ebe3241b 277 void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
radnoumane 0:1392ebe3241b 278 {
radnoumane 0:1392ebe3241b 279 Radio.Sleep( );
radnoumane 0:1392ebe3241b 280 BufferSize = size;
radnoumane 0:1392ebe3241b 281 memcpy( Buffer, payload, BufferSize );
radnoumane 0:1392ebe3241b 282 RssiValue = rssi;
radnoumane 0:1392ebe3241b 283 SnrValue = snr;
radnoumane 0:1392ebe3241b 284 State = RX;
radnoumane 0:1392ebe3241b 285 debug_if( DEBUG_MESSAGE, "> Reception terminee \n\r" );
radnoumane 0:1392ebe3241b 286 }
radnoumane 0:1392ebe3241b 287
radnoumane 0:1392ebe3241b 288 void OnTxTimeout( void )
radnoumane 0:1392ebe3241b 289 {
radnoumane 0:1392ebe3241b 290 Radio.Sleep( );
radnoumane 0:1392ebe3241b 291 State = TX_TIMEOUT;
radnoumane 0:1392ebe3241b 292 debug_if( DEBUG_MESSAGE, "> Transmission timeout\n\r" );
radnoumane 0:1392ebe3241b 293 }
radnoumane 0:1392ebe3241b 294
radnoumane 0:1392ebe3241b 295 void OnRxTimeout( void )
radnoumane 0:1392ebe3241b 296 {
radnoumane 0:1392ebe3241b 297 Radio.Sleep( );
radnoumane 0:1392ebe3241b 298 Buffer[BufferSize] = 0;
radnoumane 0:1392ebe3241b 299 State = RX_TIMEOUT;
radnoumane 0:1392ebe3241b 300 debug_if( DEBUG_MESSAGE, "> Reception timeout\n\r" );
radnoumane 0:1392ebe3241b 301 }
radnoumane 0:1392ebe3241b 302
radnoumane 0:1392ebe3241b 303 void OnRxError( void )
radnoumane 0:1392ebe3241b 304 {
radnoumane 0:1392ebe3241b 305 Radio.Sleep( );
radnoumane 0:1392ebe3241b 306 State = RX_ERROR;
radnoumane 0:1392ebe3241b 307 debug_if( DEBUG_MESSAGE, "> Erreur de reception \n\r" );
radnoumane 0:1392ebe3241b 308 }