Lukas Formanek / Mbed 2 deprecated LoRa_Node_STM32F103C8T6

LoRa_Node_STM32F103C8T6

Dependencies:   mbed mbed-STM32F103C8T6 OneWireCRC_LoRa_Node SX1276Lib_LoRa_Node

RFM95W.cpp@1:a54ff5e2c2f3, 2018-04-22 (annotated)

Committer:
lukas_formanek
Date:
Sun Apr 22 12:39:13 2018 +0000
Revision:
1:a54ff5e2c2f3
Parent:
0:cc04364f049a
Child:
2:8bd9ce0ae2df
22.4.2018

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