Lukas Formanek / Mbed 2 deprecated LoRa_Node_STM32F103C8T6

LoRa_Node_STM32F103C8T6

Dependencies:   mbed mbed-STM32F103C8T6 OneWireCRC_LoRa_Node SX1276Lib_LoRa_Node

RFM95W.cpp@6:531b8dccca06, 2018-04-30 (annotated)

Committer:
lukas_formanek
Date:
Mon Apr 30 22:41:57 2018 +0000
Revision:
6:531b8dccca06
Parent:
5:6e899f5db65e
Child:
7:1aa5c96a8b9f
1.5.2018

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lukas_formanek 0:cc04364f049a 1 #include "RFM95W.h"
lukas_formanek 0:cc04364f049a 2
lukas_formanek 6:531b8dccca06 3 RFM95W rfm;
lukas_formanek 0:cc04364f049a 4
lukas_formanek 0:cc04364f049a 5 //--------------------------- Callback funkcie ---------------------------------
lukas_formanek 6:531b8dccca06 6 void TxDone(void)
lukas_formanek 6:531b8dccca06 7 {
lukas_formanek 6:531b8dccca06 8 rfm.OnTxDone();
lukas_formanek 6:531b8dccca06 9 };
lukas_formanek 0:cc04364f049a 10
lukas_formanek 6:531b8dccca06 11 void RxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
lukas_formanek 6:531b8dccca06 12 {
lukas_formanek 6:531b8dccca06 13 rfm.OnRxDone(payload,size,rssi,snr);
lukas_formanek 6:531b8dccca06 14 };
lukas_formanek 0:cc04364f049a 15
lukas_formanek 6:531b8dccca06 16 void TxTimeout(void)
lukas_formanek 6:531b8dccca06 17 {
lukas_formanek 6:531b8dccca06 18 rfm.OnTxTimeout();
lukas_formanek 6:531b8dccca06 19 };
lukas_formanek 0:cc04364f049a 20
lukas_formanek 6:531b8dccca06 21 void RxTimeout(void)
lukas_formanek 6:531b8dccca06 22 {
lukas_formanek 6:531b8dccca06 23 rfm.OnRxTimeout();
lukas_formanek 6:531b8dccca06 24 };
lukas_formanek 0:cc04364f049a 25
lukas_formanek 6:531b8dccca06 26 void RxError(void)
lukas_formanek 6:531b8dccca06 27 {
lukas_formanek 6:531b8dccca06 28 rfm.OnRxError();
lukas_formanek 6:531b8dccca06 29 };
lukas_formanek 0:cc04364f049a 30
lukas_formanek 6:531b8dccca06 31 void CadDone(bool channelActivityDetected)
lukas_formanek 6:531b8dccca06 32 {
lukas_formanek 6:531b8dccca06 33 rfm.OnCadDone(channelActivityDetected);
lukas_formanek 6:531b8dccca06 34 };
lukas_formanek 0:cc04364f049a 35 //------------------------------------------------------------------------------
lukas_formanek 0:cc04364f049a 36
lukas_formanek 0:cc04364f049a 37 RFM95W::RFM95W()
lukas_formanek 0:cc04364f049a 38 : radio(NULL),
lukas_formanek 1:a54ff5e2c2f3 39 indicationLed(LED_PIN),
lukas_formanek 0:cc04364f049a 40 noise(NOISE_PIN)
lukas_formanek 0:cc04364f049a 41 {
lukas_formanek 0:cc04364f049a 42 memset(receivedMessage, '\0', sizeof(receivedMessage));
lukas_formanek 0:cc04364f049a 43 ledState = 0;
lukas_formanek 0:cc04364f049a 44 timeOnAirSec = 0.3;
lukas_formanek 0:cc04364f049a 45 indicationLed = 1;
lukas_formanek 0:cc04364f049a 46 messageNumber = NODE_ID;
lukas_formanek 3:369546c57dc7 47 sendCounter = 0;
lukas_formanek 3:369546c57dc7 48 receivedAck = false;
lukas_formanek 0:cc04364f049a 49 };
lukas_formanek 0:cc04364f049a 50
lukas_formanek 0:cc04364f049a 51 void RFM95W::OnLedTick()
lukas_formanek 0:cc04364f049a 52 {
lukas_formanek 0:cc04364f049a 53 if(ledState<6) {
lukas_formanek 0:cc04364f049a 54 indicationLed = !indicationLed;
lukas_formanek 0:cc04364f049a 55 } else {
lukas_formanek 0:cc04364f049a 56 ledState = 0;
lukas_formanek 0:cc04364f049a 57 indicationLed = 1;
lukas_formanek 0:cc04364f049a 58 ledTicker.detach();
lukas_formanek 0:cc04364f049a 59 }
lukas_formanek 0:cc04364f049a 60 ledState++;
lukas_formanek 0:cc04364f049a 61 }
lukas_formanek 0:cc04364f049a 62
lukas_formanek 1:a54ff5e2c2f3 63 void RFM95W::SendMessage()
lukas_formanek 1:a54ff5e2c2f3 64 {
lukas_formanek 4:a8853c148f2a 65 snprintf((char *)ack, 3, "%c%c%c",NODE_ID, sendBuffer[0], messageNumber);
lukas_formanek 1:a54ff5e2c2f3 66 radio.Send( sendBuffer, 10 ); // poslem len 10 bajtov
lukas_formanek 1:a54ff5e2c2f3 67 }
lukas_formanek 1:a54ff5e2c2f3 68
lukas_formanek 0:cc04364f049a 69 void RFM95W::SendAck(uint8_t addr, uint8_t messageNumber)
lukas_formanek 0:cc04364f049a 70 {
lukas_formanek 0:cc04364f049a 71 uint8_t ack[3];
lukas_formanek 4:a8853c148f2a 72 snprintf((char *)ack, sizeof(ack), "%c%c%c", addr, NODE_ID, messageNumber);
lukas_formanek 0:cc04364f049a 73 PC.printf("Sending Ack : %s \r\n",ack);
lukas_formanek 0:cc04364f049a 74 radio.Send(ack, 3);
lukas_formanek 0:cc04364f049a 75 };
lukas_formanek 0:cc04364f049a 76
lukas_formanek 2:8bd9ce0ae2df 77 float RFM95W::CalculateRandomTime()
lukas_formanek 2:8bd9ce0ae2df 78 {
lukas_formanek 5:6e899f5db65e 79 uint8_t number = rand() % 1500;;
lukas_formanek 6:531b8dccca06 80 while(number == 0) {
lukas_formanek 6:531b8dccca06 81 number = rand() % 1500;
lukas_formanek 6:531b8dccca06 82 }
lukas_formanek 5:6e899f5db65e 83 return (timeOnAirSec * (number / 150.0));
lukas_formanek 2:8bd9ce0ae2df 84 };
lukas_formanek 2:8bd9ce0ae2df 85
lukas_formanek 2:8bd9ce0ae2df 86 void RFM95W::OnCheckAck()
lukas_formanek 2:8bd9ce0ae2df 87 {
lukas_formanek 2:8bd9ce0ae2df 88 if((receivedAck == false) && (sendCounter < MAX_RESENDS))
lukas_formanek 5:6e899f5db65e 89 sendTicker.attach(this,&RFM95W::OnSendAgain, CalculateRandomTime());
lukas_formanek 6:531b8dccca06 90 else if((receivedAck == false) && (sendCounter >= MAX_RESENDS)) {
lukas_formanek 5:6e899f5db65e 91 PC.printf("Message number : %d \r\n", messageNumber);
lukas_formanek 5:6e899f5db65e 92 messageNumber++;
lukas_formanek 5:6e899f5db65e 93 if(messageNumber>255)
lukas_formanek 5:6e899f5db65e 94 messageNumber = 0;
lukas_formanek 2:8bd9ce0ae2df 95 }
lukas_formanek 2:8bd9ce0ae2df 96 ackTicker.detach();
lukas_formanek 2:8bd9ce0ae2df 97 };
lukas_formanek 2:8bd9ce0ae2df 98
lukas_formanek 2:8bd9ce0ae2df 99 void RFM95W::OnSendAgain()
lukas_formanek 2:8bd9ce0ae2df 100 {
lukas_formanek 2:8bd9ce0ae2df 101 SendMessage();
lukas_formanek 2:8bd9ce0ae2df 102 sendCounter++;
lukas_formanek 2:8bd9ce0ae2df 103 sendTicker.detach();
lukas_formanek 2:8bd9ce0ae2df 104 };
lukas_formanek 2:8bd9ce0ae2df 105
lukas_formanek 0:cc04364f049a 106 void RFM95W::OnTxDone( void )
lukas_formanek 0:cc04364f049a 107 {
lukas_formanek 0:cc04364f049a 108 radio.Sleep();
lukas_formanek 4:a8853c148f2a 109 if(sendingAck)
lukas_formanek 4:a8853c148f2a 110 sendingAck = false;
lukas_formanek 6:531b8dccca06 111 else {
lukas_formanek 4:a8853c148f2a 112 receivedAck = false;
lukas_formanek 4:a8853c148f2a 113 ackTicker.attach(this,&RFM95W::OnCheckAck,timeOnAirSec*3);
lukas_formanek 4:a8853c148f2a 114 }
lukas_formanek 0:cc04364f049a 115 radio.Rx(0);
lukas_formanek 4:a8853c148f2a 116 PC.printf("on Tx done...\r\n");
lukas_formanek 0:cc04364f049a 117 };
lukas_formanek 0:cc04364f049a 118
lukas_formanek 0:cc04364f049a 119 void RFM95W::OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
lukas_formanek 0:cc04364f049a 120 {
lukas_formanek 0:cc04364f049a 121 radio.Sleep();
lukas_formanek 4:a8853c148f2a 122 if(payload[0] == NODE_ID) {
lukas_formanek 4:a8853c148f2a 123 ledTicker.attach(this,&RFM95W::OnLedTick, LED_BLIK_PERIOD);
lukas_formanek 6:531b8dccca06 124 if((size == 3) && (strncmp( ( const char* )payload, ( const char* )ack, 3 ) == 0) ) {
lukas_formanek 3:369546c57dc7 125 receivedAck = true;
lukas_formanek 1:a54ff5e2c2f3 126 PC.printf("Received Ack : %s \r\n",ack);
lukas_formanek 1:a54ff5e2c2f3 127 messageNumber++;
lukas_formanek 1:a54ff5e2c2f3 128 if(messageNumber>255)
lukas_formanek 1:a54ff5e2c2f3 129 messageNumber = 0;
lukas_formanek 6:531b8dccca06 130 radio.Rx(0);
lukas_formanek 1:a54ff5e2c2f3 131 return;
lukas_formanek 6:531b8dccca06 132 }
lukas_formanek 6:531b8dccca06 133 sendingAck = true;
lukas_formanek 4:a8853c148f2a 134 uint8_t MsgFrom = payload[1]; // konverzia na cislo
lukas_formanek 0:cc04364f049a 135 SendAck(MsgFrom,payload[2]);
lukas_formanek 4:a8853c148f2a 136 PC.printf("MSG from : %c , message number received= %d \r\n",MsgFrom,payload[2]);
lukas_formanek 6:531b8dccca06 137 if(payload[2] == messageNumbers[MsgFrom]) {
lukas_formanek 0:cc04364f049a 138 PC.printf("--------------------- Ta ista sprava -------------------- \r\n");
lukas_formanek 6:531b8dccca06 139 // radio.Rx(0);
lukas_formanek 0:cc04364f049a 140 return;
lukas_formanek 0:cc04364f049a 141 }
lukas_formanek 0:cc04364f049a 142 messageNumbers[MsgFrom] = payload[2];
lukas_formanek 4:a8853c148f2a 143 payload[2] = 48; // ASCII hodnota cisla 0
lukas_formanek 4:a8853c148f2a 144 memmove(payload, payload+4, size - 4 + 1);
lukas_formanek 4:a8853c148f2a 145 PC.printf("Upraveny payload : %s\r\n",payload);
lukas_formanek 4:a8853c148f2a 146 snprintf((char *)receivedMessage, BUFF_SIZE, "%s", payload);
lukas_formanek 5:6e899f5db65e 147 ProcessReceivedMessage();
lukas_formanek 0:cc04364f049a 148 return;
lukas_formanek 0:cc04364f049a 149 }
lukas_formanek 2:8bd9ce0ae2df 150 radio.Rx(0); // som zakomentil :P
lukas_formanek 0:cc04364f049a 151 };
lukas_formanek 0:cc04364f049a 152
lukas_formanek 5:6e899f5db65e 153 void RFM95W::ProcessReceivedMessage()
lukas_formanek 5:6e899f5db65e 154 {
lukas_formanek 6:531b8dccca06 155 int time = atoi((const char*)receivedMessage);
lukas_formanek 6:531b8dccca06 156 thermometer.StopPeriodicMeassure();
lukas_formanek 6:531b8dccca06 157 thermometer.StartPeriodicMeassure(time);
lukas_formanek 6:531b8dccca06 158 PC.printf("Skonvertovane cislo : %d \r\n",time);
lukas_formanek 5:6e899f5db65e 159 };
lukas_formanek 5:6e899f5db65e 160
lukas_formanek 0:cc04364f049a 161 void RFM95W::OnTxTimeout( void )
lukas_formanek 0:cc04364f049a 162 {
lukas_formanek 0:cc04364f049a 163 radio.Sleep();
lukas_formanek 0:cc04364f049a 164 Init();
lukas_formanek 0:cc04364f049a 165 };
lukas_formanek 0:cc04364f049a 166
lukas_formanek 0:cc04364f049a 167 void RFM95W::OnRxTimeout( void )
lukas_formanek 0:cc04364f049a 168 {
lukas_formanek 0:cc04364f049a 169 radio.Sleep();
lukas_formanek 0:cc04364f049a 170 radio.Rx(0);
lukas_formanek 0:cc04364f049a 171 };
lukas_formanek 0:cc04364f049a 172
lukas_formanek 0:cc04364f049a 173 void RFM95W::OnRxError( void )
lukas_formanek 0:cc04364f049a 174 {
lukas_formanek 0:cc04364f049a 175 radio.Sleep();
lukas_formanek 0:cc04364f049a 176 PC.printf("Chyba prijatia ! \r\n");
lukas_formanek 0:cc04364f049a 177 radio.Rx(0);
lukas_formanek 0:cc04364f049a 178 };
lukas_formanek 0:cc04364f049a 179
lukas_formanek 6:531b8dccca06 180 void RFM95W::OnCadDone( bool channelActivityDetected ) {};
lukas_formanek 0:cc04364f049a 181
lukas_formanek 0:cc04364f049a 182 void RFM95W::SendValue(uint8_t addr, float value)
lukas_formanek 0:cc04364f049a 183 {
lukas_formanek 4:a8853c148f2a 184 snprintf((char *)sendBuffer, BUFF_SIZE, "%c%c%c|%.2f|",addr, NODE_ID, messageNumber, value);
lukas_formanek 2:8bd9ce0ae2df 185 sendCounter = 0;
lukas_formanek 2:8bd9ce0ae2df 186 receivedAck = false;
lukas_formanek 1:a54ff5e2c2f3 187 SendMessage();
lukas_formanek 0:cc04364f049a 188 };
lukas_formanek 0:cc04364f049a 189
lukas_formanek 0:cc04364f049a 190 void RFM95W::Init( void )
lukas_formanek 0:cc04364f049a 191 {
lukas_formanek 0:cc04364f049a 192 PC.printf( "\n\n\r------- RFM95W GATEWAY -------\n\r" );
lukas_formanek 0:cc04364f049a 193 // Initialize Radio driver
lukas_formanek 0:cc04364f049a 194 radioEvents.TxDone = TxDone;
lukas_formanek 0:cc04364f049a 195 radioEvents.RxDone = RxDone;
lukas_formanek 0:cc04364f049a 196 radioEvents.RxError = RxError;
lukas_formanek 0:cc04364f049a 197 radioEvents.TxTimeout = TxTimeout;
lukas_formanek 0:cc04364f049a 198 radioEvents.RxTimeout = RxTimeout;
lukas_formanek 0:cc04364f049a 199 radioEvents.CadDone = CadDone;
lukas_formanek 0:cc04364f049a 200 radio.Init( &radioEvents );
lukas_formanek 0:cc04364f049a 201 // verify the connection with the board
lukas_formanek 0:cc04364f049a 202 while( radio.Read( REG_VERSION ) == 0x00 ) {
lukas_formanek 0:cc04364f049a 203 PC.printf( "Radiovy modul nie je pripojeny!\n\r", NULL );
lukas_formanek 0:cc04364f049a 204 wait(1);
lukas_formanek 0:cc04364f049a 205 }
lukas_formanek 0:cc04364f049a 206 radio.SetChannel( RF_FREQUENCY );
lukas_formanek 0:cc04364f049a 207 #if USE_MODEM_LORA == 1
lukas_formanek 0:cc04364f049a 208 PC.printf("\n\r > LORA Mod < \n\n\r");
lukas_formanek 0:cc04364f049a 209 radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
lukas_formanek 0:cc04364f049a 210 LORA_SPREADING_FACTOR, LORA_CODINGRATE,
lukas_formanek 0:cc04364f049a 211 LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
lukas_formanek 0:cc04364f049a 212 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
lukas_formanek 0:cc04364f049a 213 LORA_IQ_INVERSION_ON, 2000000 );
lukas_formanek 0:cc04364f049a 214
lukas_formanek 0:cc04364f049a 215 radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
lukas_formanek 0:cc04364f049a 216 LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
lukas_formanek 0:cc04364f049a 217 LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON, 0,
lukas_formanek 0:cc04364f049a 218 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
lukas_formanek 0:cc04364f049a 219 LORA_IQ_INVERSION_ON, true );
lukas_formanek 0:cc04364f049a 220
lukas_formanek 0:cc04364f049a 221 #elif USE_MODEM_FSK == 1
lukas_formanek 0:cc04364f049a 222
lukas_formanek 0:cc04364f049a 223 PC.printf("\n\r > FSK Mod < \n\n\r");
lukas_formanek 0:cc04364f049a 224 radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,
lukas_formanek 0:cc04364f049a 225 FSK_DATARATE, 0,
lukas_formanek 0:cc04364f049a 226 FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,
lukas_formanek 0:cc04364f049a 227 FSK_CRC_ENABLED, 0, 0, 0, 2000000 );
lukas_formanek 0:cc04364f049a 228
lukas_formanek 0:cc04364f049a 229 radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
lukas_formanek 0:cc04364f049a 230 0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
lukas_formanek 0:cc04364f049a 231 0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, FSK_CRC_ENABLED,
lukas_formanek 0:cc04364f049a 232 0, 0, false, true );
lukas_formanek 0:cc04364f049a 233
lukas_formanek 0:cc04364f049a 234 #else
lukas_formanek 0:cc04364f049a 235
lukas_formanek 0:cc04364f049a 236 #error "Nie je definovany typ modemu."
lukas_formanek 0:cc04364f049a 237
lukas_formanek 0:cc04364f049a 238 #endif
lukas_formanek 0:cc04364f049a 239 // Konfiguracia pre moznost max. vysielacieho vykonu
lukas_formanek 0:cc04364f049a 240 uint8_t paConfig;
lukas_formanek 0:cc04364f049a 241 paConfig = radio.Read( REG_PACONFIG );
lukas_formanek 0:cc04364f049a 242 paConfig |= RF_PACONFIG_PASELECT_PABOOST;
lukas_formanek 0:cc04364f049a 243 radio.Write( REG_PACONFIG, paConfig );
lukas_formanek 6:531b8dccca06 244
lukas_formanek 0:cc04364f049a 245 PC.printf("________Start aplikacie________\r\n" );
lukas_formanek 0:cc04364f049a 246 timeOnAirSec = (radio.TimeOnAir( MODEM_LORA, 10)/1000.0); // time on air v ms
lukas_formanek 0:cc04364f049a 247 PC.printf( "\n\n\r------- Time on air : %f sec. -------\n\r", timeOnAirSec);
lukas_formanek 0:cc04364f049a 248 indicationLed = 1;
lukas_formanek 0:cc04364f049a 249 InitRandom();
lukas_formanek 0:cc04364f049a 250 messageNumber = rand();
lukas_formanek 6:531b8dccca06 251 for(uint16_t i = 0; i < MAX_DEVICES; i++)
lukas_formanek 3:369546c57dc7 252 messageNumbers[i]=rand() % 256;
lukas_formanek 0:cc04364f049a 253 radio.Rx(0);
lukas_formanek 0:cc04364f049a 254 };
lukas_formanek 0:cc04364f049a 255
lukas_formanek 0:cc04364f049a 256 void RFM95W::InitRandom()
lukas_formanek 0:cc04364f049a 257 {
lukas_formanek 0:cc04364f049a 258 uint32_t seed;
lukas_formanek 0:cc04364f049a 259 uint8_t loops = 3;
lukas_formanek 0:cc04364f049a 260 for (int i=0; i<(32*loops); i++) {
lukas_formanek 0:cc04364f049a 261 seed ^= noise.read_u16();
lukas_formanek 6:531b8dccca06 262 if (seed & 1<31) {
lukas_formanek 0:cc04364f049a 263 seed <<= 1;
lukas_formanek 0:cc04364f049a 264 seed |= 1;
lukas_formanek 0:cc04364f049a 265 } else
lukas_formanek 0:cc04364f049a 266 seed <<= 1;
lukas_formanek 0:cc04364f049a 267 }
lukas_formanek 0:cc04364f049a 268 srand(seed);
lukas_formanek 0:cc04364f049a 269 };