Basic MAC data interface for LoRa transceiver
Dependents: LoRaBaseStation LoRaTerminal
AlohaTransceiver.cpp@18:3e6483550f25, 2016-08-12 (annotated)
- Committer:
- rba90
- Date:
- Fri Aug 12 04:07:55 2016 +0000
- Revision:
- 18:3e6483550f25
- Parent:
- 17:c6e2e2cd6e5f
- Child:
- 19:6cd5024b6ae4
use DEBUG_ALOHA to toggle debug text on or off
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
rba90 | 0:e2ccabf3f30c | 1 | #include "AlohaTransceiver.h" |
rba90 | 0:e2ccabf3f30c | 2 | #include "mbed.h" |
rba90 | 0:e2ccabf3f30c | 3 | #include "radio.h" |
rba90 | 18:3e6483550f25 | 4 | #include "debug.h" |
rba90 | 0:e2ccabf3f30c | 5 | #include "AlohaFrame.h" |
rba90 | 15:0dc9df48687a | 6 | #include "RingBuffer.h" |
rba90 | 0:e2ccabf3f30c | 7 | |
rba90 | 18:3e6483550f25 | 8 | |
rba90 | 0:e2ccabf3f30c | 9 | // declear the type of radio state |
rba90 | 0:e2ccabf3f30c | 10 | typedef enum |
rba90 | 0:e2ccabf3f30c | 11 | { |
rba90 | 0:e2ccabf3f30c | 12 | LOWPOWER = 0, |
rba90 | 0:e2ccabf3f30c | 13 | IDLE, |
rba90 | 0:e2ccabf3f30c | 14 | |
rba90 | 0:e2ccabf3f30c | 15 | RX, |
rba90 | 0:e2ccabf3f30c | 16 | RX_TIMEOUT, |
rba90 | 0:e2ccabf3f30c | 17 | RX_ERROR, |
rba90 | 0:e2ccabf3f30c | 18 | |
rba90 | 0:e2ccabf3f30c | 19 | TX, |
rba90 | 0:e2ccabf3f30c | 20 | TX_TIMEOUT, |
rba90 | 0:e2ccabf3f30c | 21 | |
rba90 | 0:e2ccabf3f30c | 22 | CAD, |
rba90 | 0:e2ccabf3f30c | 23 | CAD_DONE |
rba90 | 0:e2ccabf3f30c | 24 | }AppStates_t; |
rba90 | 0:e2ccabf3f30c | 25 | |
rba90 | 0:e2ccabf3f30c | 26 | // radio driver related variables |
rba90 | 0:e2ccabf3f30c | 27 | static uint16_t BufferSize; |
rba90 | 0:e2ccabf3f30c | 28 | static uint8_t Buffer[BUFFER_SIZE]; |
rba90 | 0:e2ccabf3f30c | 29 | |
rba90 | 0:e2ccabf3f30c | 30 | static int16_t RssiValue; |
rba90 | 0:e2ccabf3f30c | 31 | static int8_t SnrValue; |
rba90 | 0:e2ccabf3f30c | 32 | |
rba90 | 0:e2ccabf3f30c | 33 | static volatile AppStates_t State; |
rba90 | 0:e2ccabf3f30c | 34 | static RadioEvents_t RadioEvents; |
rba90 | 0:e2ccabf3f30c | 35 | |
rba90 | 17:c6e2e2cd6e5f | 36 | |
rba90 | 17:c6e2e2cd6e5f | 37 | |
rba90 | 0:e2ccabf3f30c | 38 | // callback functions for radio driver |
rba90 | 0:e2ccabf3f30c | 39 | void OnTxDone(); |
rba90 | 0:e2ccabf3f30c | 40 | void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ); |
rba90 | 0:e2ccabf3f30c | 41 | void OnTxTimeout(); |
rba90 | 0:e2ccabf3f30c | 42 | void OnRxTimeout(); |
rba90 | 0:e2ccabf3f30c | 43 | void OnRxError(); |
rba90 | 0:e2ccabf3f30c | 44 | void OnFhssChangeChannel( uint8_t channelIndex ); |
rba90 | 0:e2ccabf3f30c | 45 | void OnCadDone(); |
rba90 | 0:e2ccabf3f30c | 46 | |
rba90 | 0:e2ccabf3f30c | 47 | // radio driver |
rba90 | 0:e2ccabf3f30c | 48 | #ifdef BUILD_FOR_BS |
rba90 | 0:e2ccabf3f30c | 49 | SX1276MB1xAS Radio( NULL ); |
rba90 | 0:e2ccabf3f30c | 50 | #endif |
rba90 | 0:e2ccabf3f30c | 51 | |
rba90 | 0:e2ccabf3f30c | 52 | #ifdef BUILD_FOR_TERMINAL |
rba90 | 0:e2ccabf3f30c | 53 | SX1276inAir Radio( NULL ); |
rba90 | 0:e2ccabf3f30c | 54 | #endif |
rba90 | 0:e2ccabf3f30c | 55 | |
rba90 | 0:e2ccabf3f30c | 56 | |
rba90 | 0:e2ccabf3f30c | 57 | /* |
rba90 | 0:e2ccabf3f30c | 58 | * Abstract interface for accessing radio driver |
rba90 | 0:e2ccabf3f30c | 59 | */ |
rba90 | 0:e2ccabf3f30c | 60 | |
rba90 | 11:3e1ff29da71a | 61 | AlohaTransceiver::AlohaTransceiver(uint8_t id) |
rba90 | 0:e2ccabf3f30c | 62 | { |
rba90 | 11:3e1ff29da71a | 63 | // store unique device id |
rba90 | 11:3e1ff29da71a | 64 | deviceId = id; |
rba90 | 11:3e1ff29da71a | 65 | |
rba90 | 17:c6e2e2cd6e5f | 66 | // initialize sequenceid |
rba90 | 17:c6e2e2cd6e5f | 67 | memset(seqid, 0x0, sizeof(seqid)); |
rba90 | 17:c6e2e2cd6e5f | 68 | |
rba90 | 0:e2ccabf3f30c | 69 | // configure properties |
rba90 | 0:e2ccabf3f30c | 70 | #if USE_MODEM_LORA == 1 |
rba90 | 0:e2ccabf3f30c | 71 | Settings.Power = TX_OUTPUT_POWER; |
rba90 | 0:e2ccabf3f30c | 72 | Settings.Bandwidth = LORA_BANDWIDTH; |
rba90 | 0:e2ccabf3f30c | 73 | Settings.Datarate = LORA_SPREADING_FACTOR; |
rba90 | 0:e2ccabf3f30c | 74 | Settings.Coderate = LORA_CODINGRATE; |
rba90 | 0:e2ccabf3f30c | 75 | Settings.PreambleLen = LORA_PREAMBLE_LENGTH; |
rba90 | 0:e2ccabf3f30c | 76 | Settings.SymbolTimeout = LORA_SYMBOL_TIMEOUT; |
rba90 | 0:e2ccabf3f30c | 77 | Settings.FixLen = LORA_FIX_LENGTH_PAYLOAD_ON; |
rba90 | 0:e2ccabf3f30c | 78 | Settings.PayloadLen = 0; |
rba90 | 0:e2ccabf3f30c | 79 | Settings.CrcOn = LORA_CRC_ENABLED; |
rba90 | 0:e2ccabf3f30c | 80 | Settings.FreqHopOn = LORA_FHSS_ENABLED; |
rba90 | 0:e2ccabf3f30c | 81 | Settings.HopPeriod = LORA_NB_SYMB_HOP; |
rba90 | 0:e2ccabf3f30c | 82 | Settings.IqInverted = LORA_IQ_INVERSION_ON; |
rba90 | 0:e2ccabf3f30c | 83 | Settings.RxContinuous = true; |
rba90 | 0:e2ccabf3f30c | 84 | Settings.TxTimeout = TX_TIMEOUT_VALUE; |
rba90 | 0:e2ccabf3f30c | 85 | |
rba90 | 0:e2ccabf3f30c | 86 | #elif USE_MODEM_FSK == 1 |
rba90 | 0:e2ccabf3f30c | 87 | // TODO: Complete settings for FSK mode |
rba90 | 0:e2ccabf3f30c | 88 | #error "FSK not implemented" |
rba90 | 0:e2ccabf3f30c | 89 | #else |
rba90 | 0:e2ccabf3f30c | 90 | #error "Please define a modem in the compiler options." |
rba90 | 0:e2ccabf3f30c | 91 | #endif |
rba90 | 0:e2ccabf3f30c | 92 | } |
rba90 | 0:e2ccabf3f30c | 93 | |
rba90 | 0:e2ccabf3f30c | 94 | AlohaTransceiver::~AlohaTransceiver() |
rba90 | 0:e2ccabf3f30c | 95 | { |
rba90 | 0:e2ccabf3f30c | 96 | |
rba90 | 0:e2ccabf3f30c | 97 | } |
rba90 | 0:e2ccabf3f30c | 98 | |
rba90 | 6:f545f5aa7de3 | 99 | void AlohaTransceiver::boardInit() |
rba90 | 0:e2ccabf3f30c | 100 | { |
rba90 | 0:e2ccabf3f30c | 101 | // configure callback functions |
rba90 | 0:e2ccabf3f30c | 102 | RadioEvents.TxDone = OnTxDone; |
rba90 | 0:e2ccabf3f30c | 103 | RadioEvents.RxDone = OnRxDone; |
rba90 | 0:e2ccabf3f30c | 104 | RadioEvents.RxError = OnRxError; |
rba90 | 0:e2ccabf3f30c | 105 | RadioEvents.TxTimeout = OnTxTimeout; |
rba90 | 0:e2ccabf3f30c | 106 | RadioEvents.RxTimeout = OnRxTimeout; |
rba90 | 0:e2ccabf3f30c | 107 | Radio.Init( &RadioEvents ); |
rba90 | 0:e2ccabf3f30c | 108 | |
rba90 | 0:e2ccabf3f30c | 109 | // verify the connection with the board |
rba90 | 0:e2ccabf3f30c | 110 | while( Radio.Read( REG_VERSION ) == 0x00 ) |
rba90 | 0:e2ccabf3f30c | 111 | { |
rba90 | 18:3e6483550f25 | 112 | #ifdef DEBUG_ALOHA |
rba90 | 18:3e6483550f25 | 113 | debug( "Radio could not be detected!\n\r" ); |
rba90 | 18:3e6483550f25 | 114 | #endif |
rba90 | 0:e2ccabf3f30c | 115 | wait( 1 ); |
rba90 | 0:e2ccabf3f30c | 116 | } |
rba90 | 18:3e6483550f25 | 117 | #ifdef DEBUG_ALOHA |
rba90 | 0:e2ccabf3f30c | 118 | printf("RadioRegVersion: %d\r\n", Radio.Read( REG_VERSION )); |
rba90 | 18:3e6483550f25 | 119 | #endif |
rba90 | 0:e2ccabf3f30c | 120 | } |
rba90 | 0:e2ccabf3f30c | 121 | |
rba90 | 0:e2ccabf3f30c | 122 | void AlohaTransceiver::updateSettings() |
rba90 | 0:e2ccabf3f30c | 123 | { |
rba90 | 6:f545f5aa7de3 | 124 | Radio.SetChannel( RF_FREQUENCY ); |
rba90 | 0:e2ccabf3f30c | 125 | #if USE_MODEM_LORA == 1 |
rba90 | 0:e2ccabf3f30c | 126 | |
rba90 | 0:e2ccabf3f30c | 127 | Radio.SetTxConfig( MODEM_LORA, Settings.Power, 0, Settings.Bandwidth, |
rba90 | 0:e2ccabf3f30c | 128 | Settings.Datarate, Settings.Coderate, |
rba90 | 0:e2ccabf3f30c | 129 | Settings.PreambleLen, Settings.FixLen, |
rba90 | 0:e2ccabf3f30c | 130 | Settings.CrcOn, Settings.FreqHopOn, Settings.HopPeriod, |
rba90 | 0:e2ccabf3f30c | 131 | Settings.IqInverted, Settings.TxTimeout ); |
rba90 | 0:e2ccabf3f30c | 132 | |
rba90 | 0:e2ccabf3f30c | 133 | Radio.SetRxConfig( MODEM_LORA, Settings.Bandwidth, Settings.Datarate, |
rba90 | 0:e2ccabf3f30c | 134 | Settings.Coderate, 0, Settings.PreambleLen, |
rba90 | 0:e2ccabf3f30c | 135 | Settings.SymbolTimeout, Settings.FixLen, Settings.PayloadLen, |
rba90 | 0:e2ccabf3f30c | 136 | Settings.CrcOn, Settings.FreqHopOn, Settings.HopPeriod, |
rba90 | 0:e2ccabf3f30c | 137 | Settings.IqInverted, Settings.RxContinuous ); |
rba90 | 0:e2ccabf3f30c | 138 | |
rba90 | 0:e2ccabf3f30c | 139 | #elif USE_MODEM_FSK == 1 |
rba90 | 0:e2ccabf3f30c | 140 | #error "FSK not implemented" |
rba90 | 0:e2ccabf3f30c | 141 | #else |
rba90 | 0:e2ccabf3f30c | 142 | #error "Please define a modem in the compiler options." |
rba90 | 0:e2ccabf3f30c | 143 | #endif |
rba90 | 0:e2ccabf3f30c | 144 | } |
rba90 | 0:e2ccabf3f30c | 145 | |
rba90 | 6:f545f5aa7de3 | 146 | void AlohaTransceiver::enable() |
rba90 | 6:f545f5aa7de3 | 147 | { |
rba90 | 6:f545f5aa7de3 | 148 | // entering passive receiver mode |
rba90 | 10:065a4b58c6ff | 149 | Radio.Rx( 0 ); |
rba90 | 6:f545f5aa7de3 | 150 | } |
rba90 | 6:f545f5aa7de3 | 151 | |
rba90 | 0:e2ccabf3f30c | 152 | void AlohaTransceiver::poll() |
rba90 | 0:e2ccabf3f30c | 153 | { |
rba90 | 0:e2ccabf3f30c | 154 | switch( State ) |
rba90 | 0:e2ccabf3f30c | 155 | { |
rba90 | 0:e2ccabf3f30c | 156 | case RX: |
rba90 | 5:c3741633dc6f | 157 | { |
rba90 | 0:e2ccabf3f30c | 158 | // create new frame instance |
rba90 | 0:e2ccabf3f30c | 159 | AlohaFrame frame(Buffer, BufferSize); |
rba90 | 0:e2ccabf3f30c | 160 | |
rba90 | 11:3e1ff29da71a | 161 | // check destination |
rba90 | 11:3e1ff29da71a | 162 | // if the destination is the device id, then processing, otherwise drop the packet and continue |
rba90 | 11:3e1ff29da71a | 163 | // listening |
rba90 | 11:3e1ff29da71a | 164 | if (frame.getDestinationAddress() == (deviceId & 0x0f)) |
rba90 | 17:c6e2e2cd6e5f | 165 | { |
rba90 | 17:c6e2e2cd6e5f | 166 | // currently we only have 1 payload per frame |
rba90 | 17:c6e2e2cd6e5f | 167 | uint8_t payload_length = frame.getPayloadLength(); |
rba90 | 17:c6e2e2cd6e5f | 168 | uint8_t payload[payload_length]; |
rba90 | 17:c6e2e2cd6e5f | 169 | uint8_t src_addr = frame.getSourceAddress(); |
rba90 | 17:c6e2e2cd6e5f | 170 | uint8_t type = frame.getType(); |
rba90 | 17:c6e2e2cd6e5f | 171 | |
rba90 | 17:c6e2e2cd6e5f | 172 | // extract payload |
rba90 | 17:c6e2e2cd6e5f | 173 | for (uint8_t i = 0; i < payload_length; i++) |
rba90 | 17:c6e2e2cd6e5f | 174 | { |
rba90 | 17:c6e2e2cd6e5f | 175 | payload[i] = frame.getPayload(i); |
rba90 | 17:c6e2e2cd6e5f | 176 | } |
rba90 | 17:c6e2e2cd6e5f | 177 | |
rba90 | 11:3e1ff29da71a | 178 | // check registered callback function |
rba90 | 11:3e1ff29da71a | 179 | // execute callback functions if registered |
rba90 | 17:c6e2e2cd6e5f | 180 | |
rba90 | 17:c6e2e2cd6e5f | 181 | if (AlohaTypeCallbackTable[type] != NULL) |
rba90 | 11:3e1ff29da71a | 182 | { |
rba90 | 17:c6e2e2cd6e5f | 183 | AlohaTypeCallbackTable[type](payload, payload_length, src_addr); |
rba90 | 11:3e1ff29da71a | 184 | } |
rba90 | 0:e2ccabf3f30c | 185 | } |
rba90 | 0:e2ccabf3f30c | 186 | |
rba90 | 10:065a4b58c6ff | 187 | Radio.Rx( 0 ); |
rba90 | 0:e2ccabf3f30c | 188 | State = LOWPOWER; |
rba90 | 0:e2ccabf3f30c | 189 | break; |
rba90 | 0:e2ccabf3f30c | 190 | } |
rba90 | 0:e2ccabf3f30c | 191 | case TX: |
rba90 | 0:e2ccabf3f30c | 192 | { |
rba90 | 10:065a4b58c6ff | 193 | Radio.Rx( 0 ); |
rba90 | 0:e2ccabf3f30c | 194 | State = LOWPOWER; |
rba90 | 0:e2ccabf3f30c | 195 | break; |
rba90 | 0:e2ccabf3f30c | 196 | } |
rba90 | 0:e2ccabf3f30c | 197 | case RX_TIMEOUT: |
rba90 | 0:e2ccabf3f30c | 198 | { |
rba90 | 10:065a4b58c6ff | 199 | Radio.Rx( 0 ); |
rba90 | 0:e2ccabf3f30c | 200 | State = LOWPOWER; |
rba90 | 0:e2ccabf3f30c | 201 | break; |
rba90 | 0:e2ccabf3f30c | 202 | } |
rba90 | 0:e2ccabf3f30c | 203 | case RX_ERROR: |
rba90 | 0:e2ccabf3f30c | 204 | { |
rba90 | 10:065a4b58c6ff | 205 | Radio.Rx( 0 ); |
rba90 | 0:e2ccabf3f30c | 206 | State = LOWPOWER; |
rba90 | 0:e2ccabf3f30c | 207 | break; |
rba90 | 0:e2ccabf3f30c | 208 | } |
rba90 | 0:e2ccabf3f30c | 209 | case TX_TIMEOUT: |
rba90 | 0:e2ccabf3f30c | 210 | { |
rba90 | 10:065a4b58c6ff | 211 | Radio.Rx( 0 ); |
rba90 | 0:e2ccabf3f30c | 212 | State = LOWPOWER; |
rba90 | 0:e2ccabf3f30c | 213 | break; |
rba90 | 0:e2ccabf3f30c | 214 | } |
rba90 | 0:e2ccabf3f30c | 215 | case LOWPOWER: |
rba90 | 0:e2ccabf3f30c | 216 | { |
rba90 | 0:e2ccabf3f30c | 217 | break; |
rba90 | 0:e2ccabf3f30c | 218 | } |
rba90 | 0:e2ccabf3f30c | 219 | default: |
rba90 | 0:e2ccabf3f30c | 220 | { |
rba90 | 0:e2ccabf3f30c | 221 | State = LOWPOWER; |
rba90 | 0:e2ccabf3f30c | 222 | break; |
rba90 | 0:e2ccabf3f30c | 223 | } |
rba90 | 0:e2ccabf3f30c | 224 | } |
rba90 | 0:e2ccabf3f30c | 225 | } |
rba90 | 0:e2ccabf3f30c | 226 | |
rba90 | 17:c6e2e2cd6e5f | 227 | bool AlohaTransceiver::send(uint8_t *payload, uint8_t payload_length, uint8_t dest_addr) |
rba90 | 0:e2ccabf3f30c | 228 | { |
rba90 | 17:c6e2e2cd6e5f | 229 | // assume the user will not transmit payload longer than 16 bytes |
rba90 | 17:c6e2e2cd6e5f | 230 | if (payload_length > 16) |
rba90 | 17:c6e2e2cd6e5f | 231 | { |
rba90 | 17:c6e2e2cd6e5f | 232 | return false; |
rba90 | 17:c6e2e2cd6e5f | 233 | } |
rba90 | 17:c6e2e2cd6e5f | 234 | |
rba90 | 17:c6e2e2cd6e5f | 235 | // create a new frame |
rba90 | 17:c6e2e2cd6e5f | 236 | AlohaFrame frame; |
rba90 | 17:c6e2e2cd6e5f | 237 | uint8_t frame_length = payload_length + FIXED_BYTE; |
rba90 | 17:c6e2e2cd6e5f | 238 | |
rba90 | 17:c6e2e2cd6e5f | 239 | frame.setType(AlohaFrame::Aloha_Data); |
rba90 | 17:c6e2e2cd6e5f | 240 | frame.setPayloadLength(payload_length); |
rba90 | 17:c6e2e2cd6e5f | 241 | frame.setSourceAddress(deviceId); |
rba90 | 17:c6e2e2cd6e5f | 242 | frame.setDestinationAddress(dest_addr & 0x0f); |
rba90 | 17:c6e2e2cd6e5f | 243 | frame.setFullMessageFlag(0x1); |
rba90 | 17:c6e2e2cd6e5f | 244 | frame.setSequenceID(seqid[dest_addr]++); // use dest_addr as key for accessing sequence id |
rba90 | 17:c6e2e2cd6e5f | 245 | // the seqid should increase as it successfully transmit the packet |
rba90 | 17:c6e2e2cd6e5f | 246 | for (uint8_t i = 0; i < payload_length; i++) |
rba90 | 17:c6e2e2cd6e5f | 247 | { |
rba90 | 17:c6e2e2cd6e5f | 248 | frame.setPayload(i, payload[i]); |
rba90 | 17:c6e2e2cd6e5f | 249 | } |
rba90 | 17:c6e2e2cd6e5f | 250 | |
rba90 | 17:c6e2e2cd6e5f | 251 | // calculate crc |
rba90 | 17:c6e2e2cd6e5f | 252 | frame.generateCrc(); |
rba90 | 17:c6e2e2cd6e5f | 253 | |
rba90 | 17:c6e2e2cd6e5f | 254 | // create a buffer for transmit |
rba90 | 17:c6e2e2cd6e5f | 255 | uint8_t buffer[frame_length]; // 4 fix fields |
rba90 | 17:c6e2e2cd6e5f | 256 | memset(buffer, 0x0, sizeof(buffer)); |
rba90 | 17:c6e2e2cd6e5f | 257 | |
rba90 | 17:c6e2e2cd6e5f | 258 | // copy content to buffer |
rba90 | 17:c6e2e2cd6e5f | 259 | frame.serialize(buffer); |
rba90 | 17:c6e2e2cd6e5f | 260 | |
rba90 | 17:c6e2e2cd6e5f | 261 | // send to radio |
rba90 | 17:c6e2e2cd6e5f | 262 | Radio.Send(buffer, frame_length); |
rba90 | 10:065a4b58c6ff | 263 | State = LOWPOWER; |
rba90 | 17:c6e2e2cd6e5f | 264 | |
rba90 | 17:c6e2e2cd6e5f | 265 | return true; |
rba90 | 0:e2ccabf3f30c | 266 | } |
rba90 | 0:e2ccabf3f30c | 267 | |
rba90 | 17:c6e2e2cd6e5f | 268 | bool AlohaTransceiver::send(AlohaFrame *frame) |
rba90 | 15:0dc9df48687a | 269 | { |
rba90 | 17:c6e2e2cd6e5f | 270 | // TODO: finish this |
rba90 | 17:c6e2e2cd6e5f | 271 | return false; |
rba90 | 15:0dc9df48687a | 272 | } |
rba90 | 15:0dc9df48687a | 273 | |
rba90 | 0:e2ccabf3f30c | 274 | void AlohaTransceiver::registerType(AlohaFrame::AlohaType_t type, aloha_callback_func f) |
rba90 | 0:e2ccabf3f30c | 275 | { |
rba90 | 0:e2ccabf3f30c | 276 | AlohaTypeCallbackTable[type] = f; |
rba90 | 0:e2ccabf3f30c | 277 | } |
rba90 | 0:e2ccabf3f30c | 278 | |
rba90 | 0:e2ccabf3f30c | 279 | void AlohaTransceiver::deRegisterType(AlohaFrame::AlohaType_t type, aloha_callback_func f) |
rba90 | 0:e2ccabf3f30c | 280 | { |
rba90 | 0:e2ccabf3f30c | 281 | AlohaTypeCallbackTable[type] = NULL; |
rba90 | 0:e2ccabf3f30c | 282 | } |
rba90 | 0:e2ccabf3f30c | 283 | |
rba90 | 2:fa264e48d5f7 | 284 | int16_t AlohaTransceiver::getRssi() |
rba90 | 2:fa264e48d5f7 | 285 | { |
rba90 | 2:fa264e48d5f7 | 286 | return RssiValue; |
rba90 | 2:fa264e48d5f7 | 287 | } |
rba90 | 2:fa264e48d5f7 | 288 | |
rba90 | 2:fa264e48d5f7 | 289 | int8_t AlohaTransceiver::getSnr() |
rba90 | 2:fa264e48d5f7 | 290 | { |
rba90 | 2:fa264e48d5f7 | 291 | return SnrValue; |
rba90 | 2:fa264e48d5f7 | 292 | } |
rba90 | 2:fa264e48d5f7 | 293 | |
rba90 | 17:c6e2e2cd6e5f | 294 | uint8_t AlohaTransceiver::getDeviceID() |
rba90 | 11:3e1ff29da71a | 295 | { |
rba90 | 11:3e1ff29da71a | 296 | return deviceId; |
rba90 | 11:3e1ff29da71a | 297 | } |
rba90 | 11:3e1ff29da71a | 298 | |
rba90 | 17:c6e2e2cd6e5f | 299 | void AlohaTransceiver::setDeviceID(uint8_t id) |
rba90 | 11:3e1ff29da71a | 300 | { |
rba90 | 11:3e1ff29da71a | 301 | deviceId = id; |
rba90 | 11:3e1ff29da71a | 302 | } |
rba90 | 11:3e1ff29da71a | 303 | |
rba90 | 8:4bda842f73d4 | 304 | #if USE_MODEM_LORA == 1 |
rba90 | 8:4bda842f73d4 | 305 | AlohaTransceiver::LoRaSettings_t *AlohaTransceiver::getSettings() |
rba90 | 8:4bda842f73d4 | 306 | { |
rba90 | 8:4bda842f73d4 | 307 | return &Settings; |
rba90 | 8:4bda842f73d4 | 308 | } |
rba90 | 8:4bda842f73d4 | 309 | |
rba90 | 8:4bda842f73d4 | 310 | #elif USE_MODEM_FSK == 1 |
rba90 | 8:4bda842f73d4 | 311 | AlohaTransceiver::FskSettings_t *AlohaTransceiver::getSettings() |
rba90 | 8:4bda842f73d4 | 312 | { |
rba90 | 8:4bda842f73d4 | 313 | return &Settings; |
rba90 | 8:4bda842f73d4 | 314 | } |
rba90 | 8:4bda842f73d4 | 315 | #else |
rba90 | 8:4bda842f73d4 | 316 | #error "Please define a modem in the compiler options." |
rba90 | 8:4bda842f73d4 | 317 | #endif |
rba90 | 8:4bda842f73d4 | 318 | |
rba90 | 0:e2ccabf3f30c | 319 | void OnTxDone( void ) |
rba90 | 0:e2ccabf3f30c | 320 | { |
rba90 | 0:e2ccabf3f30c | 321 | Radio.Sleep( ); |
rba90 | 0:e2ccabf3f30c | 322 | State = TX; |
rba90 | 18:3e6483550f25 | 323 | |
rba90 | 18:3e6483550f25 | 324 | #ifdef DEBUG_ALOHA |
rba90 | 18:3e6483550f25 | 325 | debug("> OnTxDone\n\r" ); |
rba90 | 18:3e6483550f25 | 326 | #endif |
rba90 | 0:e2ccabf3f30c | 327 | } |
rba90 | 0:e2ccabf3f30c | 328 | |
rba90 | 0:e2ccabf3f30c | 329 | void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr) |
rba90 | 0:e2ccabf3f30c | 330 | { |
rba90 | 0:e2ccabf3f30c | 331 | Radio.Sleep( ); |
rba90 | 0:e2ccabf3f30c | 332 | |
rba90 | 0:e2ccabf3f30c | 333 | // safeguard: if size exceeded maximum buffer size, it will cause memory overflow |
rba90 | 0:e2ccabf3f30c | 334 | BufferSize = size ? BUFFER_SIZE : size <= BUFFER_SIZE; |
rba90 | 0:e2ccabf3f30c | 335 | |
rba90 | 0:e2ccabf3f30c | 336 | memcpy( Buffer, payload, BufferSize ); |
rba90 | 0:e2ccabf3f30c | 337 | RssiValue = rssi; |
rba90 | 0:e2ccabf3f30c | 338 | SnrValue = snr; |
rba90 | 0:e2ccabf3f30c | 339 | State = RX; |
rba90 | 18:3e6483550f25 | 340 | |
rba90 | 18:3e6483550f25 | 341 | #ifdef DEBUG_ALOHA |
rba90 | 18:3e6483550f25 | 342 | debug("> OnRxDone\n\r" ); |
rba90 | 18:3e6483550f25 | 343 | #endif |
rba90 | 0:e2ccabf3f30c | 344 | } |
rba90 | 0:e2ccabf3f30c | 345 | |
rba90 | 0:e2ccabf3f30c | 346 | void OnTxTimeout( void ) |
rba90 | 0:e2ccabf3f30c | 347 | { |
rba90 | 0:e2ccabf3f30c | 348 | Radio.Sleep( ); |
rba90 | 0:e2ccabf3f30c | 349 | State = TX_TIMEOUT; |
rba90 | 18:3e6483550f25 | 350 | |
rba90 | 18:3e6483550f25 | 351 | #ifdef DEBUG_ALOHA |
rba90 | 18:3e6483550f25 | 352 | debug("> OnTxTimeout\n\r" ); |
rba90 | 18:3e6483550f25 | 353 | #endif |
rba90 | 0:e2ccabf3f30c | 354 | } |
rba90 | 0:e2ccabf3f30c | 355 | |
rba90 | 0:e2ccabf3f30c | 356 | void OnRxTimeout( void ) |
rba90 | 0:e2ccabf3f30c | 357 | { |
rba90 | 0:e2ccabf3f30c | 358 | Radio.Sleep( ); |
rba90 | 0:e2ccabf3f30c | 359 | Buffer[ BufferSize ] = 0; |
rba90 | 0:e2ccabf3f30c | 360 | State = RX_TIMEOUT; |
rba90 | 18:3e6483550f25 | 361 | |
rba90 | 18:3e6483550f25 | 362 | #ifdef DEBUG_ALOHA |
rba90 | 18:3e6483550f25 | 363 | debug("> OnRxTimeout\n\r" ); |
rba90 | 18:3e6483550f25 | 364 | #endif |
rba90 | 0:e2ccabf3f30c | 365 | } |
rba90 | 0:e2ccabf3f30c | 366 | |
rba90 | 0:e2ccabf3f30c | 367 | void OnRxError( void ) |
rba90 | 0:e2ccabf3f30c | 368 | { |
rba90 | 0:e2ccabf3f30c | 369 | Radio.Sleep( ); |
rba90 | 0:e2ccabf3f30c | 370 | State = RX_ERROR; |
rba90 | 18:3e6483550f25 | 371 | |
rba90 | 18:3e6483550f25 | 372 | #ifdef DEBUG_ALOHA |
rba90 | 18:3e6483550f25 | 373 | debug( "> OnRxError\n\r" ); |
rba90 | 18:3e6483550f25 | 374 | #endif |
rba90 | 0:e2ccabf3f30c | 375 | } |