ENEL400 / Mbed 2 deprecated inAirPingPong

working demo for Nucleo-L152RE and Nucleo-F446RE with modtronix inair9 module

Dependencies:   mbed

main.cpp@16:61684e7fdb08, 2016-05-18 (annotated)

Committer:
rba90
Date:
Wed May 18 04:37:49 2016 +0000
Revision:
16:61684e7fdb08
Parent:
15:8fa03145c5d4 
justify bandwidth

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GregCr 0:1ed39951ab7b 1 #include "mbed.h"
GregCr 4:5ece30264cd9 2 #include "main.h"
rba90 15:8fa03145c5d4 3 #include "sx1276-inAir.h"
GregCr 0:1ed39951ab7b 4
GregCr 0:1ed39951ab7b 5 /* Set this flag to '1' to display debug messages on the console */
rba90 15:8fa03145c5d4 6 #define DEBUG_MESSAGE 1
GregCr 0:1ed39951ab7b 7
GregCr 0:1ed39951ab7b 8 /* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */
GregCr 5:f2431c4fe3bb 9 #define USE_MODEM_LORA 1
GregCr 0:1ed39951ab7b 10 #define USE_MODEM_FSK !USE_MODEM_LORA
GregCr 0:1ed39951ab7b 11
GregCr 5:f2431c4fe3bb 12 #define RF_FREQUENCY 868000000 // Hz
GregCr 0:1ed39951ab7b 13 #define TX_OUTPUT_POWER 14 // 14 dBm
GregCr 0:1ed39951ab7b 14
GregCr 0:1ed39951ab7b 15 #if USE_MODEM_LORA == 1
GregCr 0:1ed39951ab7b 16
rba90 16:61684e7fdb08 17 #define LORA_BANDWIDTH 9 // 500 KHz
GregCr 0:1ed39951ab7b 18 #define LORA_SPREADING_FACTOR 7 // [SF7..SF12]
GregCr 0:1ed39951ab7b 19 #define LORA_CODINGRATE 1 // [1: 4/5,
GregCr 0:1ed39951ab7b 20 // 2: 4/6,
GregCr 0:1ed39951ab7b 21 // 3: 4/7,
GregCr 0:1ed39951ab7b 22 // 4: 4/8]
GregCr 0:1ed39951ab7b 23 #define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
GregCr 0:1ed39951ab7b 24 #define LORA_SYMBOL_TIMEOUT 5 // Symbols
GregCr 0:1ed39951ab7b 25 #define LORA_FIX_LENGTH_PAYLOAD_ON false
GregCr 3:8b9e2a4df4b5 26 #define LORA_FHSS_ENABLED false
GregCr 3:8b9e2a4df4b5 27 #define LORA_NB_SYMB_HOP 4
GregCr 0:1ed39951ab7b 28 #define LORA_IQ_INVERSION_ON false
GregCr 3:8b9e2a4df4b5 29 #define LORA_CRC_ENABLED true
GregCr 3:8b9e2a4df4b5 30
GregCr 0:1ed39951ab7b 31 #elif USE_MODEM_FSK == 1
GregCr 0:1ed39951ab7b 32
GregCr 2:59e108728d71 33 #define FSK_FDEV 25000 // Hz
GregCr 2:59e108728d71 34 #define FSK_DATARATE 19200 // bps
GregCr 2:59e108728d71 35 #define FSK_BANDWIDTH 50000 // Hz
GregCr 2:59e108728d71 36 #define FSK_AFC_BANDWIDTH 83333 // Hz
GregCr 0:1ed39951ab7b 37 #define FSK_PREAMBLE_LENGTH 5 // Same for Tx and Rx
GregCr 0:1ed39951ab7b 38 #define FSK_FIX_LENGTH_PAYLOAD_ON false
GregCr 3:8b9e2a4df4b5 39 #define FSK_CRC_ENABLED true
GregCr 3:8b9e2a4df4b5 40
GregCr 0:1ed39951ab7b 41 #else
GregCr 0:1ed39951ab7b 42 #error "Please define a modem in the compiler options."
GregCr 0:1ed39951ab7b 43 #endif
GregCr 0:1ed39951ab7b 44
GregCr 7:c1bbd6c56979 45 #define RX_TIMEOUT_VALUE 3500000 // in us
GregCr 0:1ed39951ab7b 46 #define BUFFER_SIZE 32 // Define the payload size here
GregCr 0:1ed39951ab7b 47
GregCr 8:f956dee63a56 48 #if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
GregCr 3:8b9e2a4df4b5 49 DigitalOut led(LED2);
GregCr 3:8b9e2a4df4b5 50 #else
GregCr 3:8b9e2a4df4b5 51 DigitalOut led(LED1);
GregCr 3:8b9e2a4df4b5 52 #endif
GregCr 3:8b9e2a4df4b5 53
GregCr 0:1ed39951ab7b 54 /*
GregCr 0:1ed39951ab7b 55 * Global variables declarations
GregCr 0:1ed39951ab7b 56 */
GregCr 0:1ed39951ab7b 57
rba90 15:8fa03145c5d4 58 volatile RadioState State = LOWPOWER;
mluis 10:7af820d1e1df 59
mluis 10:7af820d1e1df 60
mluis 10:7af820d1e1df 61 /*
mluis 10:7af820d1e1df 62 * Global variables declarations
mluis 10:7af820d1e1df 63 */
rba90 15:8fa03145c5d4 64
rba90 15:8fa03145c5d4 65 SX1276inAir Radio(OnTxDone, OnTxTimeout, OnRxDone, OnRxTimeout, OnRxError, NULL, NULL);
GregCr 0:1ed39951ab7b 66
GregCr 0:1ed39951ab7b 67 const uint8_t PingMsg[] = "PING";
GregCr 0:1ed39951ab7b 68 const uint8_t PongMsg[] = "PONG";
GregCr 0:1ed39951ab7b 69
GregCr 0:1ed39951ab7b 70 uint16_t BufferSize = BUFFER_SIZE;
GregCr 0:1ed39951ab7b 71 uint8_t Buffer[BUFFER_SIZE];
GregCr 0:1ed39951ab7b 72
GregCr 5:f2431c4fe3bb 73 int16_t RssiValue = 0.0;
GregCr 5:f2431c4fe3bb 74 int8_t SnrValue = 0.0;
GregCr 0:1ed39951ab7b 75
GregCr 0:1ed39951ab7b 76 int main()
GregCr 0:1ed39951ab7b 77 {
GregCr 0:1ed39951ab7b 78 uint8_t i;
GregCr 0:1ed39951ab7b 79 bool isMaster = true;
GregCr 0:1ed39951ab7b 80
rba90 16:61684e7fdb08 81 printf( "\n\n\r SX1276 Ping Pong Demo Application \n\n\r" );
mluis 10:7af820d1e1df 82
GregCr 7:c1bbd6c56979 83 // verify the connection with the board
GregCr 7:c1bbd6c56979 84 while( Radio.Read( REG_VERSION ) == 0x00 )
GregCr 2:59e108728d71 85 {
rba90 16:61684e7fdb08 86 printf( "Radio could not be detected!\n\r");
GregCr 7:c1bbd6c56979 87 wait( 1 );
GregCr 2:59e108728d71 88 }
rba90 16:61684e7fdb08 89 printf("RadioRegVersion: %d\r\n", Radio.Read( REG_VERSION ));
GregCr 14:c7251480feb9 90
GregCr 0:1ed39951ab7b 91 Radio.SetChannel( RF_FREQUENCY );
GregCr 0:1ed39951ab7b 92
GregCr 0:1ed39951ab7b 93 #if USE_MODEM_LORA == 1
GregCr 0:1ed39951ab7b 94 Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
GregCr 0:1ed39951ab7b 95 LORA_SPREADING_FACTOR, LORA_CODINGRATE,
GregCr 0:1ed39951ab7b 96 LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
GregCr 3:8b9e2a4df4b5 97 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
GregCr 7:c1bbd6c56979 98 LORA_IQ_INVERSION_ON, 2000000 );
GregCr 0:1ed39951ab7b 99
GregCr 0:1ed39951ab7b 100 Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
GregCr 0:1ed39951ab7b 101 LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
mluis 9:e764990e45df 102 LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON, 0,
GregCr 3:8b9e2a4df4b5 103 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
GregCr 3:8b9e2a4df4b5 104 LORA_IQ_INVERSION_ON, true );
GregCr 0:1ed39951ab7b 105
GregCr 0:1ed39951ab7b 106 #elif USE_MODEM_FSK == 1
GregCr 0:1ed39951ab7b 107 Radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,
GregCr 0:1ed39951ab7b 108 FSK_DATARATE, 0,
GregCr 0:1ed39951ab7b 109 FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,
GregCr 7:c1bbd6c56979 110 FSK_CRC_ENABLED, 0, 0, 0, 2000000 );
GregCr 0:1ed39951ab7b 111
GregCr 0:1ed39951ab7b 112 Radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
GregCr 0:1ed39951ab7b 113 0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
mluis 9:e764990e45df 114 0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, FSK_CRC_ENABLED,
GregCr 3:8b9e2a4df4b5 115 0, 0, false, true );
GregCr 0:1ed39951ab7b 116
GregCr 0:1ed39951ab7b 117 #else
GregCr 0:1ed39951ab7b 118
GregCr 0:1ed39951ab7b 119 #error "Please define a modem in the compiler options."
GregCr 0:1ed39951ab7b 120
GregCr 0:1ed39951ab7b 121 #endif
GregCr 1:126d70d374f6 122
rba90 16:61684e7fdb08 123 printf( "Starting Ping-Pong loop\r\n" );
GregCr 0:1ed39951ab7b 124
GregCr 3:8b9e2a4df4b5 125 led = 0;
GregCr 3:8b9e2a4df4b5 126
GregCr 0:1ed39951ab7b 127 Radio.Rx( RX_TIMEOUT_VALUE );
GregCr 0:1ed39951ab7b 128
GregCr 0:1ed39951ab7b 129 while( 1 )
GregCr 0:1ed39951ab7b 130 {
GregCr 0:1ed39951ab7b 131 switch( State )
GregCr 0:1ed39951ab7b 132 {
rba90 15:8fa03145c5d4 133 case RX_DONE:
GregCr 0:1ed39951ab7b 134 if( isMaster == true )
GregCr 0:1ed39951ab7b 135 {
GregCr 0:1ed39951ab7b 136 if( BufferSize > 0 )
GregCr 0:1ed39951ab7b 137 {
GregCr 0:1ed39951ab7b 138 if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 )
GregCr 0:1ed39951ab7b 139 {
GregCr 3:8b9e2a4df4b5 140 led = !led;
rba90 16:61684e7fdb08 141 printf( "...Pong\r\n" );
GregCr 0:1ed39951ab7b 142 // Send the next PING frame
GregCr 7:c1bbd6c56979 143 strcpy( ( char* )Buffer, ( char* )PingMsg );
GregCr 0:1ed39951ab7b 144 // We fill the buffer with numbers for the payload
GregCr 0:1ed39951ab7b 145 for( i = 4; i < BufferSize; i++ )
GregCr 0:1ed39951ab7b 146 {
GregCr 0:1ed39951ab7b 147 Buffer[i] = i - 4;
GregCr 0:1ed39951ab7b 148 }
GregCr 0:1ed39951ab7b 149 wait_ms( 10 );
GregCr 0:1ed39951ab7b 150 Radio.Send( Buffer, BufferSize );
GregCr 0:1ed39951ab7b 151 }
GregCr 2:59e108728d71 152 else if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
GregCr 0:1ed39951ab7b 153 { // A master already exists then become a slave
rba90 16:61684e7fdb08 154 printf( "...Ping\r\n" );
GregCr 3:8b9e2a4df4b5 155 led = !led;
GregCr 0:1ed39951ab7b 156 isMaster = false;
GregCr 7:c1bbd6c56979 157 // Send the next PONG frame
GregCr 7:c1bbd6c56979 158 strcpy( ( char* )Buffer, ( char* )PongMsg );
GregCr 2:59e108728d71 159 // We fill the buffer with numbers for the payload
GregCr 2:59e108728d71 160 for( i = 4; i < BufferSize; i++ )
GregCr 2:59e108728d71 161 {
GregCr 2:59e108728d71 162 Buffer[i] = i - 4;
GregCr 2:59e108728d71 163 }
GregCr 3:8b9e2a4df4b5 164 wait_ms( 10 );
GregCr 2:59e108728d71 165 Radio.Send( Buffer, BufferSize );
GregCr 2:59e108728d71 166 }
GregCr 2:59e108728d71 167 else // valid reception but neither a PING or a PONG message
GregCr 2:59e108728d71 168 { // Set device as master ans start again
GregCr 2:59e108728d71 169 isMaster = true;
GregCr 0:1ed39951ab7b 170 Radio.Rx( RX_TIMEOUT_VALUE );
GregCr 2:59e108728d71 171 }
GregCr 0:1ed39951ab7b 172 }
GregCr 0:1ed39951ab7b 173 }
GregCr 0:1ed39951ab7b 174 else
GregCr 0:1ed39951ab7b 175 {
GregCr 0:1ed39951ab7b 176 if( BufferSize > 0 )
GregCr 0:1ed39951ab7b 177 {
GregCr 0:1ed39951ab7b 178 if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
GregCr 0:1ed39951ab7b 179 {
GregCr 3:8b9e2a4df4b5 180 led = !led;
rba90 16:61684e7fdb08 181 printf( "...Ping\r\n" );
GregCr 2:59e108728d71 182 // Send the reply to the PING string
GregCr 7:c1bbd6c56979 183 strcpy( ( char* )Buffer, ( char* )PongMsg );
GregCr 0:1ed39951ab7b 184 // We fill the buffer with numbers for the payload
GregCr 0:1ed39951ab7b 185 for( i = 4; i < BufferSize; i++ )
GregCr 0:1ed39951ab7b 186 {
GregCr 0:1ed39951ab7b 187 Buffer[i] = i - 4;
GregCr 0:1ed39951ab7b 188 }
GregCr 0:1ed39951ab7b 189 wait_ms( 10 );
GregCr 0:1ed39951ab7b 190 Radio.Send( Buffer, BufferSize );
GregCr 0:1ed39951ab7b 191 }
GregCr 2:59e108728d71 192 else // valid reception but not a PING as expected
GregCr 2:59e108728d71 193 { // Set device as master and start again
GregCr 2:59e108728d71 194 isMaster = true;
GregCr 2:59e108728d71 195 Radio.Rx( RX_TIMEOUT_VALUE );
GregCr 2:59e108728d71 196 }
GregCr 0:1ed39951ab7b 197 }
GregCr 0:1ed39951ab7b 198 }
GregCr 0:1ed39951ab7b 199 State = LOWPOWER;
GregCr 0:1ed39951ab7b 200 break;
rba90 16:61684e7fdb08 201 case TX_DONE:
GregCr 3:8b9e2a4df4b5 202 led = !led;
GregCr 2:59e108728d71 203 if( isMaster == true )
GregCr 0:1ed39951ab7b 204 {
rba90 16:61684e7fdb08 205 printf( "Ping...\r\n" );
GregCr 0:1ed39951ab7b 206 }
GregCr 0:1ed39951ab7b 207 else
GregCr 0:1ed39951ab7b 208 {
rba90 16:61684e7fdb08 209 printf( "Pong...\r\n" );
GregCr 0:1ed39951ab7b 210 }
GregCr 0:1ed39951ab7b 211 Radio.Rx( RX_TIMEOUT_VALUE );
GregCr 0:1ed39951ab7b 212 State = LOWPOWER;
GregCr 0:1ed39951ab7b 213 break;
GregCr 0:1ed39951ab7b 214 case RX_TIMEOUT:
GregCr 0:1ed39951ab7b 215 if( isMaster == true )
GregCr 0:1ed39951ab7b 216 {
GregCr 0:1ed39951ab7b 217 // Send the next PING frame
GregCr 7:c1bbd6c56979 218 strcpy( ( char* )Buffer, ( char* )PingMsg );
GregCr 0:1ed39951ab7b 219 for( i = 4; i < BufferSize; i++ )
GregCr 0:1ed39951ab7b 220 {
GregCr 0:1ed39951ab7b 221 Buffer[i] = i - 4;
GregCr 0:1ed39951ab7b 222 }
GregCr 0:1ed39951ab7b 223 wait_ms( 10 );
GregCr 0:1ed39951ab7b 224 Radio.Send( Buffer, BufferSize );
GregCr 0:1ed39951ab7b 225 }
GregCr 0:1ed39951ab7b 226 else
GregCr 0:1ed39951ab7b 227 {
GregCr 0:1ed39951ab7b 228 Radio.Rx( RX_TIMEOUT_VALUE );
GregCr 0:1ed39951ab7b 229 }
GregCr 0:1ed39951ab7b 230 State = LOWPOWER;
GregCr 0:1ed39951ab7b 231 break;
GregCr 0:1ed39951ab7b 232 case RX_ERROR:
GregCr 7:c1bbd6c56979 233 // We have received a Packet with a CRC error, send reply as if packet was correct
GregCr 0:1ed39951ab7b 234 if( isMaster == true )
GregCr 0:1ed39951ab7b 235 {
GregCr 0:1ed39951ab7b 236 // Send the next PING frame
GregCr 7:c1bbd6c56979 237 strcpy( ( char* )Buffer, ( char* )PingMsg );
GregCr 0:1ed39951ab7b 238 for( i = 4; i < BufferSize; i++ )
GregCr 0:1ed39951ab7b 239 {
GregCr 0:1ed39951ab7b 240 Buffer[i] = i - 4;
GregCr 0:1ed39951ab7b 241 }
GregCr 0:1ed39951ab7b 242 wait_ms( 10 );
GregCr 0:1ed39951ab7b 243 Radio.Send( Buffer, BufferSize );
GregCr 0:1ed39951ab7b 244 }
GregCr 0:1ed39951ab7b 245 else
GregCr 0:1ed39951ab7b 246 {
GregCr 2:59e108728d71 247 // Send the next PONG frame
GregCr 7:c1bbd6c56979 248 strcpy( ( char* )Buffer, ( char* )PongMsg );
GregCr 2:59e108728d71 249 for( i = 4; i < BufferSize; i++ )
GregCr 2:59e108728d71 250 {
GregCr 2:59e108728d71 251 Buffer[i] = i - 4;
GregCr 2:59e108728d71 252 }
GregCr 2:59e108728d71 253 wait_ms( 10 );
GregCr 2:59e108728d71 254 Radio.Send( Buffer, BufferSize );
GregCr 0:1ed39951ab7b 255 }
GregCr 0:1ed39951ab7b 256 State = LOWPOWER;
GregCr 0:1ed39951ab7b 257 break;
GregCr 0:1ed39951ab7b 258 case TX_TIMEOUT:
GregCr 0:1ed39951ab7b 259 Radio.Rx( RX_TIMEOUT_VALUE );
GregCr 0:1ed39951ab7b 260 State = LOWPOWER;
GregCr 0:1ed39951ab7b 261 break;
GregCr 0:1ed39951ab7b 262 case LOWPOWER:
GregCr 0:1ed39951ab7b 263 break;
GregCr 0:1ed39951ab7b 264 default:
GregCr 0:1ed39951ab7b 265 State = LOWPOWER;
GregCr 0:1ed39951ab7b 266 break;
GregCr 0:1ed39951ab7b 267 }
GregCr 0:1ed39951ab7b 268 }
GregCr 0:1ed39951ab7b 269 }
GregCr 0:1ed39951ab7b 270
GregCr 0:1ed39951ab7b 271 void OnTxDone( void )
GregCr 0:1ed39951ab7b 272 {
GregCr 5:f2431c4fe3bb 273 Radio.Sleep( );
rba90 15:8fa03145c5d4 274 State = TX_DONE;
rba90 16:61684e7fdb08 275 printf( "> OnTxDone\n\r" );
GregCr 0:1ed39951ab7b 276 }
GregCr 0:1ed39951ab7b 277
GregCr 4:5ece30264cd9 278 void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)
GregCr 0:1ed39951ab7b 279 {
GregCr 0:1ed39951ab7b 280 Radio.Sleep( );
GregCr 0:1ed39951ab7b 281 BufferSize = size;
GregCr 0:1ed39951ab7b 282 memcpy( Buffer, payload, BufferSize );
GregCr 0:1ed39951ab7b 283 RssiValue = rssi;
GregCr 0:1ed39951ab7b 284 SnrValue = snr;
rba90 15:8fa03145c5d4 285 State = RX_DONE;
rba90 16:61684e7fdb08 286 printf( "> OnRxDone\n\r" );
GregCr 0:1ed39951ab7b 287 }
GregCr 0:1ed39951ab7b 288
GregCr 0:1ed39951ab7b 289 void OnTxTimeout( void )
GregCr 0:1ed39951ab7b 290 {
GregCr 0:1ed39951ab7b 291 Radio.Sleep( );
GregCr 0:1ed39951ab7b 292 State = TX_TIMEOUT;
rba90 16:61684e7fdb08 293 printf( "> OnTxTimeout\n\r" );
GregCr 0:1ed39951ab7b 294 }
GregCr 0:1ed39951ab7b 295
GregCr 0:1ed39951ab7b 296 void OnRxTimeout( void )
GregCr 0:1ed39951ab7b 297 {
GregCr 0:1ed39951ab7b 298 Radio.Sleep( );
GregCr 1:126d70d374f6 299 Buffer[ BufferSize ] = 0;
GregCr 0:1ed39951ab7b 300 State = RX_TIMEOUT;
rba90 16:61684e7fdb08 301 printf( "> OnRxTimeout\n\r" );
GregCr 0:1ed39951ab7b 302 }
GregCr 0:1ed39951ab7b 303
GregCr 0:1ed39951ab7b 304 void OnRxError( void )
GregCr 0:1ed39951ab7b 305 {
GregCr 0:1ed39951ab7b 306 Radio.Sleep( );
GregCr 0:1ed39951ab7b 307 State = RX_ERROR;
rba90 16:61684e7fdb08 308 printf( "> OnRxError\n\r" );
GregCr 0:1ed39951ab7b 309 }
GregCr 3:8b9e2a4df4b5 310