Lukas Formanek / Mbed 2 deprecated LoRa_Node_STM32F103C8T6

LoRa_Node_STM32F103C8T6

Dependencies:   mbed mbed-STM32F103C8T6 OneWireCRC_LoRa_Node SX1276Lib_LoRa_Node

RFM95W.cpp@3:369546c57dc7, 2018-04-23 (annotated)

Committer:
lukas_formanek
Date:
Mon Apr 23 10:30:21 2018 +0000
Revision:
3:369546c57dc7
Parent:
2:8bd9ce0ae2df
Child:
4:a8853c148f2a
23.4.2018

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 0:cc04364f049a 3 RFM95W rfm; // Globalna instancia
lukas_formanek 0:cc04364f049a 4
lukas_formanek 0:cc04364f049a 5 //--------------------------- Callback funkcie ---------------------------------
lukas_formanek 0:cc04364f049a 6 void TxDone(void){rfm.OnTxDone();};
lukas_formanek 0:cc04364f049a 7
lukas_formanek 0:cc04364f049a 8 void RxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ){rfm.OnRxDone(payload,size,rssi,snr);};
lukas_formanek 0:cc04364f049a 9
lukas_formanek 0:cc04364f049a 10 void TxTimeout(void){rfm.OnTxTimeout();};
lukas_formanek 0:cc04364f049a 11
lukas_formanek 0:cc04364f049a 12 void RxTimeout(void){rfm.OnRxTimeout();};
lukas_formanek 0:cc04364f049a 13
lukas_formanek 0:cc04364f049a 14 void RxError(void){rfm.OnRxError();};
lukas_formanek 0:cc04364f049a 15
lukas_formanek 0:cc04364f049a 16 void CadDone(bool channelActivityDetected){rfm.OnCadDone(channelActivityDetected);};
lukas_formanek 0:cc04364f049a 17 //------------------------------------------------------------------------------
lukas_formanek 0:cc04364f049a 18
lukas_formanek 0:cc04364f049a 19 RFM95W::RFM95W()
lukas_formanek 0:cc04364f049a 20 : radio(NULL),
lukas_formanek 1:a54ff5e2c2f3 21 indicationLed(LED_PIN),
lukas_formanek 0:cc04364f049a 22 noise(NOISE_PIN)
lukas_formanek 0:cc04364f049a 23 {
lukas_formanek 0:cc04364f049a 24 memset(receivedMessage, '\0', sizeof(receivedMessage));
lukas_formanek 0:cc04364f049a 25 ledState = 0;
lukas_formanek 0:cc04364f049a 26 timeOnAirSec = 0.3;
lukas_formanek 0:cc04364f049a 27 indicationLed = 1;
lukas_formanek 0:cc04364f049a 28 messageNumber = NODE_ID;
lukas_formanek 3:369546c57dc7 29 sendCounter = 0;
lukas_formanek 3:369546c57dc7 30 receivedAck = false;
lukas_formanek 0:cc04364f049a 31 };
lukas_formanek 0:cc04364f049a 32
lukas_formanek 0:cc04364f049a 33 void RFM95W::OnLedTick()
lukas_formanek 0:cc04364f049a 34 {
lukas_formanek 0:cc04364f049a 35 if(ledState<6) {
lukas_formanek 0:cc04364f049a 36 indicationLed = !indicationLed;
lukas_formanek 0:cc04364f049a 37 } else {
lukas_formanek 0:cc04364f049a 38 ledState = 0;
lukas_formanek 0:cc04364f049a 39 indicationLed = 1;
lukas_formanek 0:cc04364f049a 40 ledTicker.detach();
lukas_formanek 0:cc04364f049a 41 }
lukas_formanek 0:cc04364f049a 42 ledState++;
lukas_formanek 0:cc04364f049a 43 }
lukas_formanek 0:cc04364f049a 44
lukas_formanek 1:a54ff5e2c2f3 45 void RFM95W::SendMessage()
lukas_formanek 1:a54ff5e2c2f3 46 {
lukas_formanek 1:a54ff5e2c2f3 47 snprintf((char *)ack, 3, "%d%d%c",NODE_ID, sendBuffer[0]-'0', messageNumber);
lukas_formanek 1:a54ff5e2c2f3 48 radio.Send( sendBuffer, 10 ); // poslem len 10 bajtov
lukas_formanek 1:a54ff5e2c2f3 49 }
lukas_formanek 1:a54ff5e2c2f3 50
lukas_formanek 0:cc04364f049a 51 void RFM95W::SendAck(uint8_t addr, uint8_t messageNumber)
lukas_formanek 0:cc04364f049a 52 {
lukas_formanek 0:cc04364f049a 53 uint8_t ack[3];
lukas_formanek 1:a54ff5e2c2f3 54 snprintf((char *)ack, sizeof(ack), "%d%d%c", addr, NODE_ID, messageNumber);
lukas_formanek 0:cc04364f049a 55 PC.printf("Sending Ack : %s \r\n",ack);
lukas_formanek 0:cc04364f049a 56 radio.Send(ack, 3);
lukas_formanek 0:cc04364f049a 57 };
lukas_formanek 0:cc04364f049a 58
lukas_formanek 2:8bd9ce0ae2df 59 float RFM95W::CalculateRandomTime()
lukas_formanek 2:8bd9ce0ae2df 60 {
lukas_formanek 2:8bd9ce0ae2df 61 uint8_t number;
lukas_formanek 2:8bd9ce0ae2df 62 while(number == 0) {number = rand() % 1200;}
lukas_formanek 2:8bd9ce0ae2df 63 return (timeOnAirSec * (number / 200.0));
lukas_formanek 2:8bd9ce0ae2df 64 };
lukas_formanek 2:8bd9ce0ae2df 65
lukas_formanek 2:8bd9ce0ae2df 66 void RFM95W::OnCheckAck()
lukas_formanek 2:8bd9ce0ae2df 67 {
lukas_formanek 2:8bd9ce0ae2df 68 if((receivedAck == false) && (sendCounter < MAX_RESENDS))
lukas_formanek 2:8bd9ce0ae2df 69 {
lukas_formanek 3:369546c57dc7 70 sendTicker.attach(this,&RFM95W::OnSendAgain, CalculateRandomTime());
lukas_formanek 2:8bd9ce0ae2df 71 /* NumberOfFailSends++;
lukas_formanek 2:8bd9ce0ae2df 72 if(NumberOfFailSends >=3 )
lukas_formanek 2:8bd9ce0ae2df 73 {
lukas_formanek 2:8bd9ce0ae2df 74 // MessageAlter = !MessageAlter; // ????????????????????????????????????????????????????????????????????????????????????????????????????????
lukas_formanek 2:8bd9ce0ae2df 75 NumberOfFailSends = 0;
lukas_formanek 2:8bd9ce0ae2df 76 sampleTicker.detach();
lukas_formanek 2:8bd9ce0ae2df 77 sampleTicker.attach(&onSampleTick,15.0); // kazdych 15s
lukas_formanek 2:8bd9ce0ae2df 78 }
lukas_formanek 2:8bd9ce0ae2df 79 */
lukas_formanek 2:8bd9ce0ae2df 80 }
lukas_formanek 2:8bd9ce0ae2df 81 ackTicker.detach();
lukas_formanek 2:8bd9ce0ae2df 82 };
lukas_formanek 2:8bd9ce0ae2df 83
lukas_formanek 2:8bd9ce0ae2df 84 void RFM95W::OnSendAgain()
lukas_formanek 2:8bd9ce0ae2df 85 {
lukas_formanek 2:8bd9ce0ae2df 86 SendMessage();
lukas_formanek 2:8bd9ce0ae2df 87 sendCounter++;
lukas_formanek 2:8bd9ce0ae2df 88 sendTicker.detach();
lukas_formanek 2:8bd9ce0ae2df 89 };
lukas_formanek 2:8bd9ce0ae2df 90
lukas_formanek 0:cc04364f049a 91 void RFM95W::OnTxDone( void )
lukas_formanek 0:cc04364f049a 92 {
lukas_formanek 0:cc04364f049a 93 radio.Sleep();
lukas_formanek 2:8bd9ce0ae2df 94 receivedAck = false;
lukas_formanek 3:369546c57dc7 95 ackTicker.attach(this,&RFM95W::OnCheckAck,timeOnAirSec*3);
lukas_formanek 0:cc04364f049a 96 radio.Rx(0);
lukas_formanek 0:cc04364f049a 97 };
lukas_formanek 0:cc04364f049a 98
lukas_formanek 0:cc04364f049a 99 void RFM95W::OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
lukas_formanek 0:cc04364f049a 100 {
lukas_formanek 0:cc04364f049a 101 radio.Sleep();
lukas_formanek 0:cc04364f049a 102 // debug("%d \r\n", payload[0]-'0');
lukas_formanek 1:a54ff5e2c2f3 103 if(payload[0]-'0' == NODE_ID) {
lukas_formanek 3:369546c57dc7 104 if((size == 3) && (strncmp( ( const char* )payload, ( const char* )ack, 3 ) == 0) )
lukas_formanek 1:a54ff5e2c2f3 105 {
lukas_formanek 3:369546c57dc7 106 receivedAck = true;
lukas_formanek 1:a54ff5e2c2f3 107 PC.printf("Received Ack : %s \r\n",ack);
lukas_formanek 3:369546c57dc7 108 ledTicker.attach(this,&RFM95W::OnLedTick, LED_BLIK_PERIOD);
lukas_formanek 1:a54ff5e2c2f3 109 indicationLed=0;
lukas_formanek 1:a54ff5e2c2f3 110 messageNumber++;
lukas_formanek 1:a54ff5e2c2f3 111 if(messageNumber>255)
lukas_formanek 1:a54ff5e2c2f3 112 messageNumber = 0;
lukas_formanek 2:8bd9ce0ae2df 113 radio.Rx(0);
lukas_formanek 1:a54ff5e2c2f3 114 return;
lukas_formanek 1:a54ff5e2c2f3 115 }
lukas_formanek 0:cc04364f049a 116 // moje ID - adresa brany, konverzia na cislo
lukas_formanek 0:cc04364f049a 117 uint8_t MsgFrom = payload[1]-'0'; // konverzia na cislo
lukas_formanek 0:cc04364f049a 118 SendAck(MsgFrom,payload[2]);
lukas_formanek 0:cc04364f049a 119 PC.printf("MSG from : %d , message number received= %d \r\n",MsgFrom,payload[2]);
lukas_formanek 0:cc04364f049a 120 if(payload[2] == messageNumbers[MsgFrom])
lukas_formanek 0:cc04364f049a 121 {
lukas_formanek 0:cc04364f049a 122 PC.printf("--------------------- Ta ista sprava -------------------- \r\n");
lukas_formanek 3:369546c57dc7 123 // radio.Rx(0);
lukas_formanek 0:cc04364f049a 124 return;
lukas_formanek 0:cc04364f049a 125 }
lukas_formanek 0:cc04364f049a 126 messageNumbers[MsgFrom] = payload[2];
lukas_formanek 0:cc04364f049a 127
lukas_formanek 0:cc04364f049a 128 payload[2] = 48; // ASCII hodnota cisla 0
lukas_formanek 0:cc04364f049a 129 PC.printf("Message number saved= %d \r\n",messageNumbers[MsgFrom]);
lukas_formanek 0:cc04364f049a 130 snprintf((char *)receivedMessage, BUFF_SIZE, "%d|%d|%s|\r\n", rssi, snr, payload);
lukas_formanek 0:cc04364f049a 131
lukas_formanek 0:cc04364f049a 132 // debug_if( DEBUG_MESSAGE, "> OnRxDone\n\r" );
lukas_formanek 1:a54ff5e2c2f3 133
lukas_formanek 0:cc04364f049a 134 return;
lukas_formanek 0:cc04364f049a 135 }
lukas_formanek 2:8bd9ce0ae2df 136 radio.Rx(0); // som zakomentil :P
lukas_formanek 0:cc04364f049a 137 };
lukas_formanek 0:cc04364f049a 138
lukas_formanek 0:cc04364f049a 139 void RFM95W::OnTxTimeout( void )
lukas_formanek 0:cc04364f049a 140 {
lukas_formanek 0:cc04364f049a 141 radio.Sleep();
lukas_formanek 0:cc04364f049a 142 Init();
lukas_formanek 2:8bd9ce0ae2df 143 // radio.Rx(0);
lukas_formanek 0:cc04364f049a 144 };
lukas_formanek 0:cc04364f049a 145
lukas_formanek 0:cc04364f049a 146 void RFM95W::OnRxTimeout( void )
lukas_formanek 0:cc04364f049a 147 {
lukas_formanek 0:cc04364f049a 148 radio.Sleep();
lukas_formanek 0:cc04364f049a 149 radio.Rx(0);
lukas_formanek 0:cc04364f049a 150 };
lukas_formanek 0:cc04364f049a 151
lukas_formanek 0:cc04364f049a 152 void RFM95W::OnRxError( void )
lukas_formanek 0:cc04364f049a 153 {
lukas_formanek 0:cc04364f049a 154 radio.Sleep();
lukas_formanek 0:cc04364f049a 155 PC.printf("Chyba prijatia ! \r\n");
lukas_formanek 0:cc04364f049a 156 radio.Rx(0);
lukas_formanek 0:cc04364f049a 157 };
lukas_formanek 0:cc04364f049a 158
lukas_formanek 0:cc04364f049a 159 void RFM95W::OnCadDone( bool channelActivityDetected ){};
lukas_formanek 0:cc04364f049a 160
lukas_formanek 0:cc04364f049a 161 void RFM95W::SendValue(uint8_t addr, float value)
lukas_formanek 0:cc04364f049a 162 {
lukas_formanek 0:cc04364f049a 163 snprintf((char *)sendBuffer, BUFF_SIZE, "%d%d%c|%.2f|",GATEWAY_ID, NODE_ID, messageNumber, value);
lukas_formanek 2:8bd9ce0ae2df 164 sendCounter = 0;
lukas_formanek 2:8bd9ce0ae2df 165 receivedAck = false;
lukas_formanek 1:a54ff5e2c2f3 166 SendMessage();
lukas_formanek 0:cc04364f049a 167 };
lukas_formanek 0:cc04364f049a 168
lukas_formanek 0:cc04364f049a 169 void RFM95W::Init( void )
lukas_formanek 0:cc04364f049a 170 {
lukas_formanek 0:cc04364f049a 171 PC.printf( "\n\n\r------- RFM95W GATEWAY -------\n\r" );
lukas_formanek 0:cc04364f049a 172 // Initialize Radio driver
lukas_formanek 0:cc04364f049a 173 radioEvents.TxDone = TxDone;
lukas_formanek 0:cc04364f049a 174 radioEvents.RxDone = RxDone;
lukas_formanek 0:cc04364f049a 175 radioEvents.RxError = RxError;
lukas_formanek 0:cc04364f049a 176 radioEvents.TxTimeout = TxTimeout;
lukas_formanek 0:cc04364f049a 177 radioEvents.RxTimeout = RxTimeout;
lukas_formanek 0:cc04364f049a 178 radioEvents.CadDone = CadDone;
lukas_formanek 0:cc04364f049a 179 radio.Init( &radioEvents );
lukas_formanek 0:cc04364f049a 180 // verify the connection with the board
lukas_formanek 0:cc04364f049a 181 while( radio.Read( REG_VERSION ) == 0x00 ) {
lukas_formanek 0:cc04364f049a 182 PC.printf( "Radiovy modul nie je pripojeny!\n\r", NULL );
lukas_formanek 0:cc04364f049a 183 wait(1);
lukas_formanek 0:cc04364f049a 184 }
lukas_formanek 0:cc04364f049a 185
lukas_formanek 0:cc04364f049a 186 // debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1276MB1LAS ) ) , "\n\r > TYP: RFM95W < \n\r" );
lukas_formanek 0:cc04364f049a 187 // debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1276MB1MAS ) ) , "\n\r > TYP: RFM95W < \n\r" );
lukas_formanek 0:cc04364f049a 188 radio.SetChannel( RF_FREQUENCY );
lukas_formanek 0:cc04364f049a 189 #if USE_MODEM_LORA == 1
lukas_formanek 0:cc04364f049a 190
lukas_formanek 0:cc04364f049a 191 // debug_if( LORA_FHSS_ENABLED, "\n\r > LORA FHSS Mod < \n\n\r");
lukas_formanek 0:cc04364f049a 192 // debug_if( !LORA_FHSS_ENABLED, "\n\r > LORA Mod < \n\n\r");
lukas_formanek 0:cc04364f049a 193 PC.printf("\n\r > LORA Mod < \n\n\r");
lukas_formanek 0:cc04364f049a 194 radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
lukas_formanek 0:cc04364f049a 195 LORA_SPREADING_FACTOR, LORA_CODINGRATE,
lukas_formanek 0:cc04364f049a 196 LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
lukas_formanek 0:cc04364f049a 197 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
lukas_formanek 0:cc04364f049a 198 LORA_IQ_INVERSION_ON, 2000000 );
lukas_formanek 0:cc04364f049a 199
lukas_formanek 0:cc04364f049a 200 radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
lukas_formanek 0:cc04364f049a 201 LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
lukas_formanek 0:cc04364f049a 202 LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON, 0,
lukas_formanek 0:cc04364f049a 203 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
lukas_formanek 0:cc04364f049a 204 LORA_IQ_INVERSION_ON, true );
lukas_formanek 0:cc04364f049a 205
lukas_formanek 0:cc04364f049a 206 #elif USE_MODEM_FSK == 1
lukas_formanek 0:cc04364f049a 207
lukas_formanek 0:cc04364f049a 208 PC.printf("\n\r > FSK Mod < \n\n\r");
lukas_formanek 0:cc04364f049a 209 radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,
lukas_formanek 0:cc04364f049a 210 FSK_DATARATE, 0,
lukas_formanek 0:cc04364f049a 211 FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,
lukas_formanek 0:cc04364f049a 212 FSK_CRC_ENABLED, 0, 0, 0, 2000000 );
lukas_formanek 0:cc04364f049a 213
lukas_formanek 0:cc04364f049a 214 radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
lukas_formanek 0:cc04364f049a 215 0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
lukas_formanek 0:cc04364f049a 216 0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, FSK_CRC_ENABLED,
lukas_formanek 0:cc04364f049a 217 0, 0, false, true );
lukas_formanek 0:cc04364f049a 218
lukas_formanek 0:cc04364f049a 219 #else
lukas_formanek 0:cc04364f049a 220
lukas_formanek 0:cc04364f049a 221 #error "Nie je definovany typ modemu."
lukas_formanek 0:cc04364f049a 222
lukas_formanek 0:cc04364f049a 223 #endif
lukas_formanek 0:cc04364f049a 224 // Konfiguracia pre moznost max. vysielacieho vykonu
lukas_formanek 0:cc04364f049a 225 uint8_t paConfig;
lukas_formanek 0:cc04364f049a 226 paConfig = radio.Read( REG_PACONFIG );
lukas_formanek 0:cc04364f049a 227 paConfig |= RF_PACONFIG_PASELECT_PABOOST;
lukas_formanek 0:cc04364f049a 228 radio.Write( REG_PACONFIG, paConfig );
lukas_formanek 0:cc04364f049a 229
lukas_formanek 0:cc04364f049a 230 PC.printf("________Start aplikacie________\r\n" );
lukas_formanek 0:cc04364f049a 231 timeOnAirSec = (radio.TimeOnAir( MODEM_LORA, 10)/1000.0); // time on air v ms
lukas_formanek 0:cc04364f049a 232 PC.printf( "\n\n\r------- Time on air : %f sec. -------\n\r", timeOnAirSec);
lukas_formanek 0:cc04364f049a 233 indicationLed = 1;
lukas_formanek 0:cc04364f049a 234 InitRandom();
lukas_formanek 0:cc04364f049a 235 messageNumber = rand();
lukas_formanek 1:a54ff5e2c2f3 236 for(uint16_t i = 0; i < MAX_DEVICES;i++)
lukas_formanek 3:369546c57dc7 237 messageNumbers[i]=rand() % 256;
lukas_formanek 0:cc04364f049a 238 radio.Rx(0);
lukas_formanek 0:cc04364f049a 239 };
lukas_formanek 0:cc04364f049a 240
lukas_formanek 0:cc04364f049a 241 void RFM95W::InitRandom()
lukas_formanek 0:cc04364f049a 242 {
lukas_formanek 0:cc04364f049a 243 uint32_t seed;
lukas_formanek 0:cc04364f049a 244 uint8_t loops = 3;
lukas_formanek 0:cc04364f049a 245 for (int i=0; i<(32*loops); i++) {
lukas_formanek 0:cc04364f049a 246 seed ^= noise.read_u16();
lukas_formanek 0:cc04364f049a 247 if (seed & 1<31) { // shift left and wrap.
lukas_formanek 0:cc04364f049a 248 seed <<= 1;
lukas_formanek 0:cc04364f049a 249 seed |= 1;
lukas_formanek 0:cc04364f049a 250 } else
lukas_formanek 0:cc04364f049a 251 seed <<= 1;
lukas_formanek 0:cc04364f049a 252 }
lukas_formanek 0:cc04364f049a 253 srand(seed);
lukas_formanek 0:cc04364f049a 254 };