Lukas Formanek / Mbed 2 deprecated LoRa_Node_STM32F103C8T6

LoRa_Node_STM32F103C8T6

Dependencies:   mbed mbed-STM32F103C8T6 OneWireCRC_LoRa_Node SX1276Lib_LoRa_Node

RFM95W.cpp@2:8bd9ce0ae2df, 2018-04-22 (annotated)

Committer:
lukas_formanek
Date:
Sun Apr 22 15:09:23 2018 +0000
Revision:
2:8bd9ce0ae2df
Parent:
1:a54ff5e2c2f3
Child:
3:369546c57dc7
22.4.2018 ver 2

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