wayne roberts / lorawan1v1

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   sx12xx_hal

Dependents:   LoRaWAN-SanJose_Bootcamp LoRaWAN-grove-cayenne LoRaWAN-classC-demo LoRaWAN-grove-cayenne ... more

radio/radio.cpp@0:6b3ac9c5a042, 2018-02-28 (annotated)

Committer:
Wayne Roberts
Date:
Wed Feb 28 10:48:11 2018 -0800
Revision:
0:6b3ac9c5a042
Child:
4:e4bfe9183f94
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wayne Roberts 0:6b3ac9c5a042 1 #include "board.h"
Wayne Roberts 0:6b3ac9c5a042 2 #include "radio.h"
Wayne Roberts 0:6b3ac9c5a042 3
Wayne Roberts 0:6b3ac9c5a042 4 LowPowerTimer Radio::lpt;
Wayne Roberts 0:6b3ac9c5a042 5
Wayne Roberts 0:6b3ac9c5a042 6 void Radio::Sleep()
Wayne Roberts 0:6b3ac9c5a042 7 {
Wayne Roberts 0:6b3ac9c5a042 8 radio.set_opmode(RF_OPMODE_SLEEP);
Wayne Roberts 0:6b3ac9c5a042 9 }
Wayne Roberts 0:6b3ac9c5a042 10
Wayne Roberts 0:6b3ac9c5a042 11 void Radio::Standby()
Wayne Roberts 0:6b3ac9c5a042 12 {
Wayne Roberts 0:6b3ac9c5a042 13 radio.set_opmode(RF_OPMODE_STANDBY);
Wayne Roberts 0:6b3ac9c5a042 14 }
Wayne Roberts 0:6b3ac9c5a042 15
Wayne Roberts 0:6b3ac9c5a042 16 bool Radio::CheckRfFrequency(unsigned hz)
Wayne Roberts 0:6b3ac9c5a042 17 {
Wayne Roberts 0:6b3ac9c5a042 18 return true;
Wayne Roberts 0:6b3ac9c5a042 19 }
Wayne Roberts 0:6b3ac9c5a042 20
Wayne Roberts 0:6b3ac9c5a042 21 void Radio::SetChannel(unsigned hz)
Wayne Roberts 0:6b3ac9c5a042 22 {
Wayne Roberts 0:6b3ac9c5a042 23 radio.set_frf_MHz(hz / 1000000.0);
Wayne Roberts 0:6b3ac9c5a042 24 MAC_PRINTF(" %uhz ", hz);
Wayne Roberts 0:6b3ac9c5a042 25 }
Wayne Roberts 0:6b3ac9c5a042 26
Wayne Roberts 0:6b3ac9c5a042 27 LowPowerTimeout TxTimeoutEvent;
Wayne Roberts 0:6b3ac9c5a042 28
Wayne Roberts 0:6b3ac9c5a042 29 void SX1272OnTimeoutIrq( void )
Wayne Roberts 0:6b3ac9c5a042 30 {
Wayne Roberts 0:6b3ac9c5a042 31 Radio::radio.set_opmode(RF_OPMODE_STANDBY);
Wayne Roberts 0:6b3ac9c5a042 32 }
Wayne Roberts 0:6b3ac9c5a042 33
Wayne Roberts 0:6b3ac9c5a042 34 void Radio::SetTxContinuousWave(unsigned hz, int8_t dbm, unsigned timeout_us)
Wayne Roberts 0:6b3ac9c5a042 35 {
Wayne Roberts 0:6b3ac9c5a042 36 Radio::SetChannel(hz);
Wayne Roberts 0:6b3ac9c5a042 37 /* TODO: fsk enable, set regPacketConfig2.datamode */
Wayne Roberts 0:6b3ac9c5a042 38 set_tx_dbm(dbm);
Wayne Roberts 0:6b3ac9c5a042 39 TxTimeoutEvent.attach_us(SX1272OnTimeoutIrq, timeout_us);
Wayne Roberts 0:6b3ac9c5a042 40 radio.set_opmode(RF_OPMODE_TRANSMITTER);
Wayne Roberts 0:6b3ac9c5a042 41 }
Wayne Roberts 0:6b3ac9c5a042 42
Wayne Roberts 0:6b3ac9c5a042 43 #define LORA_MAC_PRIVATE_SYNCWORD 0x12
Wayne Roberts 0:6b3ac9c5a042 44 #define LORA_MAC_PUBLIC_SYNCWORD 0x34
Wayne Roberts 0:6b3ac9c5a042 45 void Radio::SetPublicNetwork(bool en)
Wayne Roberts 0:6b3ac9c5a042 46 {
Wayne Roberts 0:6b3ac9c5a042 47 radio.write_reg(REG_LR_SYNC_BYTE, en ? LORA_MAC_PUBLIC_SYNCWORD : LORA_MAC_PRIVATE_SYNCWORD);
Wayne Roberts 0:6b3ac9c5a042 48 }
Wayne Roberts 0:6b3ac9c5a042 49
Wayne Roberts 0:6b3ac9c5a042 50 uint32_t Radio::Random(void)
Wayne Roberts 0:6b3ac9c5a042 51 {
Wayne Roberts 0:6b3ac9c5a042 52 uint32_t ret = 0;
Wayne Roberts 0:6b3ac9c5a042 53 unsigned i;
Wayne Roberts 0:6b3ac9c5a042 54
Wayne Roberts 0:6b3ac9c5a042 55 radio.set_opmode(RF_OPMODE_RECEIVER);
Wayne Roberts 0:6b3ac9c5a042 56 for (i = 0; i < 32; i++) {
Wayne Roberts 0:6b3ac9c5a042 57 uint32_t r;
Wayne Roberts 0:6b3ac9c5a042 58 wait_us(3000);
Wayne Roberts 0:6b3ac9c5a042 59 r = radio.read_reg(REG_LR_WIDEBAND_RSSI);
Wayne Roberts 0:6b3ac9c5a042 60 r <<= ((i & 7) << 2);
Wayne Roberts 0:6b3ac9c5a042 61 ret ^= r;
Wayne Roberts 0:6b3ac9c5a042 62 }
Wayne Roberts 0:6b3ac9c5a042 63
Wayne Roberts 0:6b3ac9c5a042 64 return ret;
Wayne Roberts 0:6b3ac9c5a042 65 }
Wayne Roberts 0:6b3ac9c5a042 66
Wayne Roberts 0:6b3ac9c5a042 67 void Radio::LoRaConfig(uint32_t bandwidth, uint8_t datarate, uint8_t coderate, uint16_t preambleLen, bool fixLen, bool crcOn)
Wayne Roberts 0:6b3ac9c5a042 68 {
Wayne Roberts 0:6b3ac9c5a042 69 float sp;
Wayne Roberts 0:6b3ac9c5a042 70
Wayne Roberts 0:6b3ac9c5a042 71 if (!radio.RegOpMode.bits.LongRangeMode) {
Wayne Roberts 0:6b3ac9c5a042 72 lora.enable();
Wayne Roberts 0:6b3ac9c5a042 73 }
Wayne Roberts 0:6b3ac9c5a042 74 radio.write_reg(REG_LR_IRQFLAGSMASK, 0);
Wayne Roberts 0:6b3ac9c5a042 75
Wayne Roberts 0:6b3ac9c5a042 76 MAC_PRINTF("sf%u bw%u ", datarate, bandwidth);
Wayne Roberts 0:6b3ac9c5a042 77 lora.RegModemConfig2.sx1276bits.SpreadingFactor = datarate;
Wayne Roberts 0:6b3ac9c5a042 78 if (radio.type == SX1276) {
Wayne Roberts 0:6b3ac9c5a042 79 MAC_PRINTF("sx1276 ");
Wayne Roberts 0:6b3ac9c5a042 80 lora.RegModemConfig2.sx1276bits.RxPayloadCrcOn = crcOn;
Wayne Roberts 0:6b3ac9c5a042 81 lora.RegModemConfig.sx1276bits.ImplicitHeaderModeOn = fixLen;
Wayne Roberts 0:6b3ac9c5a042 82 lora.RegModemConfig.sx1276bits.CodingRate = coderate;
Wayne Roberts 0:6b3ac9c5a042 83 lora.RegModemConfig.sx1276bits.Bw = bandwidth + 7;
Wayne Roberts 0:6b3ac9c5a042 84 lora.RegModemConfig3.octet = radio.read_reg(REG_LR_MODEMCONFIG3);
Wayne Roberts 0:6b3ac9c5a042 85 sp = lora.get_symbol_period();
Wayne Roberts 0:6b3ac9c5a042 86 if (sp > 16)
Wayne Roberts 0:6b3ac9c5a042 87 lora.RegModemConfig3.sx1276bits.LowDataRateOptimize = 1;
Wayne Roberts 0:6b3ac9c5a042 88 else
Wayne Roberts 0:6b3ac9c5a042 89 lora.RegModemConfig3.sx1276bits.LowDataRateOptimize = 0;
Wayne Roberts 0:6b3ac9c5a042 90 radio.write_reg(REG_LR_MODEMCONFIG3, lora.RegModemConfig3.octet);
Wayne Roberts 0:6b3ac9c5a042 91 } else if (radio.type == SX1272) {
Wayne Roberts 0:6b3ac9c5a042 92 lora.RegModemConfig.sx1272bits.RxPayloadCrcOn = crcOn;
Wayne Roberts 0:6b3ac9c5a042 93 lora.RegModemConfig.sx1272bits.ImplicitHeaderModeOn = fixLen;
Wayne Roberts 0:6b3ac9c5a042 94 lora.RegModemConfig.sx1272bits.CodingRate = coderate;
Wayne Roberts 0:6b3ac9c5a042 95 lora.RegModemConfig.sx1272bits.Bw = bandwidth;
Wayne Roberts 0:6b3ac9c5a042 96 if (lora.get_symbol_period() > 16)
Wayne Roberts 0:6b3ac9c5a042 97 lora.RegModemConfig.sx1272bits.LowDataRateOptimize = 1;
Wayne Roberts 0:6b3ac9c5a042 98 else
Wayne Roberts 0:6b3ac9c5a042 99 lora.RegModemConfig.sx1272bits.LowDataRateOptimize = 0;
Wayne Roberts 0:6b3ac9c5a042 100 MAC_PRINTF("sx1272 ");
Wayne Roberts 0:6b3ac9c5a042 101 } else {
Wayne Roberts 0:6b3ac9c5a042 102 MAC_PRINTF("\e[31msx127?\e[0m ");
Wayne Roberts 0:6b3ac9c5a042 103 return;
Wayne Roberts 0:6b3ac9c5a042 104 }
Wayne Roberts 0:6b3ac9c5a042 105
Wayne Roberts 0:6b3ac9c5a042 106 //printf(" {%02x %02x} ", lora.RegModemConfig.octet, lora.RegModemConfig2.octet);
Wayne Roberts 0:6b3ac9c5a042 107 radio.write_reg(REG_LR_MODEMCONFIG, lora.RegModemConfig.octet);
Wayne Roberts 0:6b3ac9c5a042 108 radio.write_reg(REG_LR_MODEMCONFIG2, lora.RegModemConfig2.octet);
Wayne Roberts 0:6b3ac9c5a042 109
Wayne Roberts 0:6b3ac9c5a042 110 lora.RegPreamble = preambleLen;
Wayne Roberts 0:6b3ac9c5a042 111 radio.write_u16(REG_LR_PREAMBLEMSB, lora.RegPreamble);
Wayne Roberts 0:6b3ac9c5a042 112 }
Wayne Roberts 0:6b3ac9c5a042 113
Wayne Roberts 0:6b3ac9c5a042 114 void Radio::SetRxConfig(
Wayne Roberts 0:6b3ac9c5a042 115 RadioModems_t modem,
Wayne Roberts 0:6b3ac9c5a042 116 uint32_t bandwidth,
Wayne Roberts 0:6b3ac9c5a042 117 uint32_t datarate,
Wayne Roberts 0:6b3ac9c5a042 118 uint8_t coderate,
Wayne Roberts 0:6b3ac9c5a042 119 uint32_t bandwidthAfc,
Wayne Roberts 0:6b3ac9c5a042 120 uint16_t preambleLen,
Wayne Roberts 0:6b3ac9c5a042 121 uint16_t symbTimeout,
Wayne Roberts 0:6b3ac9c5a042 122 bool fixLen,
Wayne Roberts 0:6b3ac9c5a042 123 uint8_t payloadLen,
Wayne Roberts 0:6b3ac9c5a042 124 bool crcOn,
Wayne Roberts 0:6b3ac9c5a042 125 bool iqInverted)
Wayne Roberts 0:6b3ac9c5a042 126 {
Wayne Roberts 0:6b3ac9c5a042 127 if (modem == MODEM_FSK) {
Wayne Roberts 0:6b3ac9c5a042 128 if (radio.RegOpMode.bits.LongRangeMode)
Wayne Roberts 0:6b3ac9c5a042 129 fsk.enable(false);
Wayne Roberts 0:6b3ac9c5a042 130 /* TODO */
Wayne Roberts 0:6b3ac9c5a042 131 //uint32_t bandwidthAfc,
Wayne Roberts 0:6b3ac9c5a042 132 } else if (modem == MODEM_LORA) {
Wayne Roberts 0:6b3ac9c5a042 133 uint16_t reg_u16;
Wayne Roberts 0:6b3ac9c5a042 134
Wayne Roberts 0:6b3ac9c5a042 135 LoRaConfig(bandwidth, datarate, coderate, preambleLen, fixLen, crcOn);
Wayne Roberts 0:6b3ac9c5a042 136
Wayne Roberts 0:6b3ac9c5a042 137 reg_u16 = radio.read_u16(REG_LR_MODEMCONFIG2);
Wayne Roberts 0:6b3ac9c5a042 138 reg_u16 &= 0xfc00;
Wayne Roberts 0:6b3ac9c5a042 139 reg_u16 |= symbTimeout;
Wayne Roberts 0:6b3ac9c5a042 140 radio.write_u16(REG_LR_MODEMCONFIG2, reg_u16);
Wayne Roberts 0:6b3ac9c5a042 141 //MAC_PRINTF("rxconf symbt %02x %02x mask:%02x\r\n", radio.read_reg(REG_LR_MODEMCONFIG2), radio.read_reg(REG_LR_MODEMCONFIG2+1), radio.read_reg(REG_LR_IRQFLAGSMASK));
Wayne Roberts 0:6b3ac9c5a042 142
Wayne Roberts 0:6b3ac9c5a042 143 lora.invert_rx(iqInverted);
Wayne Roberts 0:6b3ac9c5a042 144 }
Wayne Roberts 0:6b3ac9c5a042 145 }
Wayne Roberts 0:6b3ac9c5a042 146
Wayne Roberts 0:6b3ac9c5a042 147 void Radio::SetTxConfig(
Wayne Roberts 0:6b3ac9c5a042 148 RadioModems_t modem,
Wayne Roberts 0:6b3ac9c5a042 149 int8_t dbm,
Wayne Roberts 0:6b3ac9c5a042 150 uint32_t fdev,
Wayne Roberts 0:6b3ac9c5a042 151 uint32_t bandwidth,
Wayne Roberts 0:6b3ac9c5a042 152 uint32_t datarate,
Wayne Roberts 0:6b3ac9c5a042 153 uint8_t coderate,
Wayne Roberts 0:6b3ac9c5a042 154 uint16_t preambleLen,
Wayne Roberts 0:6b3ac9c5a042 155 bool fixLen,
Wayne Roberts 0:6b3ac9c5a042 156 bool crcOn,
Wayne Roberts 0:6b3ac9c5a042 157 bool iqInverted)
Wayne Roberts 0:6b3ac9c5a042 158 {
Wayne Roberts 0:6b3ac9c5a042 159 set_tx_dbm(dbm);
Wayne Roberts 0:6b3ac9c5a042 160
Wayne Roberts 0:6b3ac9c5a042 161 if (modem == MODEM_FSK) {
Wayne Roberts 0:6b3ac9c5a042 162 if (radio.RegOpMode.bits.LongRangeMode)
Wayne Roberts 0:6b3ac9c5a042 163 fsk.enable(false);
Wayne Roberts 0:6b3ac9c5a042 164 /* TODO */
Wayne Roberts 0:6b3ac9c5a042 165 } else if (modem == MODEM_LORA) {
Wayne Roberts 0:6b3ac9c5a042 166 LoRaConfig(bandwidth, datarate, coderate, preambleLen, fixLen, crcOn);
Wayne Roberts 0:6b3ac9c5a042 167
Wayne Roberts 0:6b3ac9c5a042 168 lora.invert_tx(iqInverted);
Wayne Roberts 0:6b3ac9c5a042 169 }
Wayne Roberts 0:6b3ac9c5a042 170 }
Wayne Roberts 0:6b3ac9c5a042 171
Wayne Roberts 0:6b3ac9c5a042 172 void Radio::SetRxMaxPayloadLength(RadioModems_t modem, uint8_t max)
Wayne Roberts 0:6b3ac9c5a042 173 {
Wayne Roberts 0:6b3ac9c5a042 174 /* TODO fsk */
Wayne Roberts 0:6b3ac9c5a042 175 radio.write_reg(REG_LR_RX_MAX_PAYLOADLENGTH, max);
Wayne Roberts 0:6b3ac9c5a042 176 }
Wayne Roberts 0:6b3ac9c5a042 177
Wayne Roberts 0:6b3ac9c5a042 178 const RadioEvents_t* RadioEvents;
Wayne Roberts 0:6b3ac9c5a042 179
Wayne Roberts 0:6b3ac9c5a042 180
Wayne Roberts 0:6b3ac9c5a042 181 #if 0
Wayne Roberts 0:6b3ac9c5a042 182 void dumpregs()
Wayne Roberts 0:6b3ac9c5a042 183 {
Wayne Roberts 0:6b3ac9c5a042 184 unsigned i;
Wayne Roberts 0:6b3ac9c5a042 185 //MAC_PRINTF("%02x) %02x\r\n", i, radio.read_reg(i));
Wayne Roberts 0:6b3ac9c5a042 186 for (i = 0; i < 0x70; i++) {
Wayne Roberts 0:6b3ac9c5a042 187 MAC_PRINTF("%02x) %02x\r\n", i, radio.read_reg(i));
Wayne Roberts 0:6b3ac9c5a042 188 }
Wayne Roberts 0:6b3ac9c5a042 189 }
Wayne Roberts 0:6b3ac9c5a042 190 #endif /* if 0 */
Wayne Roberts 0:6b3ac9c5a042 191
Wayne Roberts 0:6b3ac9c5a042 192 //volatile bool fooEnable = false;
Wayne Roberts 0:6b3ac9c5a042 193
Wayne Roberts 0:6b3ac9c5a042 194 void Radio::dio0callback()
Wayne Roberts 0:6b3ac9c5a042 195 {
Wayne Roberts 0:6b3ac9c5a042 196 us_timestamp_t now = lpt.read_us();
Wayne Roberts 0:6b3ac9c5a042 197
Wayne Roberts 0:6b3ac9c5a042 198 lora.RegIrqFlags.octet = radio.read_reg(REG_LR_IRQFLAGS);
Wayne Roberts 0:6b3ac9c5a042 199
Wayne Roberts 0:6b3ac9c5a042 200 if (radio.RegOpMode.bits.Mode == RF_OPMODE_RECEIVER ||
Wayne Roberts 0:6b3ac9c5a042 201 radio.RegOpMode.bits.Mode == RF_OPMODE_RECEIVER_SINGLE)
Wayne Roberts 0:6b3ac9c5a042 202 {
Wayne Roberts 0:6b3ac9c5a042 203 lora.service();
Wayne Roberts 0:6b3ac9c5a042 204 if (!lora.RegIrqFlags.bits.RxDone) {
Wayne Roberts 0:6b3ac9c5a042 205 MAC_PRINTF("not-rxdone\r\n");
Wayne Roberts 0:6b3ac9c5a042 206 } else if (RadioEvents->RxDone) {
Wayne Roberts 0:6b3ac9c5a042 207 int8_t rssi;
Wayne Roberts 0:6b3ac9c5a042 208 float snr = lora.RegPktSnrValue / 4.0;
Wayne Roberts 0:6b3ac9c5a042 209
Wayne Roberts 0:6b3ac9c5a042 210 rssi = lora.get_pkt_rssi();
Wayne Roberts 0:6b3ac9c5a042 211 if (snr < 0)
Wayne Roberts 0:6b3ac9c5a042 212 rssi += snr;
Wayne Roberts 0:6b3ac9c5a042 213 //MAC_PRINTF("rxdone snr:%.2f, rssi:%d\r\n", snr, rssi);
Wayne Roberts 0:6b3ac9c5a042 214 //fooEnable = true;
Wayne Roberts 0:6b3ac9c5a042 215 RadioEvents->RxDone(radio.rx_buf, lora.RegRxNbBytes, rssi, snr, now);
Wayne Roberts 0:6b3ac9c5a042 216 }
Wayne Roberts 0:6b3ac9c5a042 217 } else if (radio.RegOpMode.bits.Mode == RF_OPMODE_TRANSMITTER) {
Wayne Roberts 0:6b3ac9c5a042 218 if (!lora.RegIrqFlags.bits.TxDone) {
Wayne Roberts 0:6b3ac9c5a042 219 MAC_PRINTF("not-txdone\r\n");
Wayne Roberts 0:6b3ac9c5a042 220 } else if (RadioEvents->TxDone)
Wayne Roberts 0:6b3ac9c5a042 221 RadioEvents->TxDone(now);
Wayne Roberts 0:6b3ac9c5a042 222 lora.service();
Wayne Roberts 0:6b3ac9c5a042 223 }
Wayne Roberts 0:6b3ac9c5a042 224 } // ..dio0callback()
Wayne Roberts 0:6b3ac9c5a042 225
Wayne Roberts 0:6b3ac9c5a042 226 void Radio::dio1callback()
Wayne Roberts 0:6b3ac9c5a042 227 {
Wayne Roberts 0:6b3ac9c5a042 228 lora.RegIrqFlags.octet = radio.read_reg(REG_LR_IRQFLAGS);
Wayne Roberts 0:6b3ac9c5a042 229
Wayne Roberts 0:6b3ac9c5a042 230 MAC_PRINTF("\e[7mdio1:%02x\e[0m\r\n", lora.RegIrqFlags.octet);
Wayne Roberts 0:6b3ac9c5a042 231 if (!lora.RegIrqFlags.bits.RxTimeout) {
Wayne Roberts 0:6b3ac9c5a042 232 MAC_PRINTF("dio1-not-rxtimeout\r\n");
Wayne Roberts 0:6b3ac9c5a042 233 } else if (RadioEvents->RxTimeout)
Wayne Roberts 0:6b3ac9c5a042 234 RadioEvents->RxTimeout();
Wayne Roberts 0:6b3ac9c5a042 235 }
Wayne Roberts 0:6b3ac9c5a042 236
Wayne Roberts 0:6b3ac9c5a042 237 void Radio::Init(const RadioEvents_t* e)
Wayne Roberts 0:6b3ac9c5a042 238 {
Wayne Roberts 0:6b3ac9c5a042 239 dio0.rise(dio0callback);
Wayne Roberts 0:6b3ac9c5a042 240 dio1.rise(dio1callback);
Wayne Roberts 0:6b3ac9c5a042 241
Wayne Roberts 0:6b3ac9c5a042 242 radio.rf_switch = rfsw_callback;
Wayne Roberts 0:6b3ac9c5a042 243 boardInit();
Wayne Roberts 0:6b3ac9c5a042 244
Wayne Roberts 0:6b3ac9c5a042 245 RadioEvents = e;
Wayne Roberts 0:6b3ac9c5a042 246 lpt.start();
Wayne Roberts 0:6b3ac9c5a042 247 }
Wayne Roberts 0:6b3ac9c5a042 248
Wayne Roberts 0:6b3ac9c5a042 249 void Radio::Send(uint8_t size)
Wayne Roberts 0:6b3ac9c5a042 250 {
Wayne Roberts 0:6b3ac9c5a042 251 if (radio.RegOpMode.bits.Mode == RF_OPMODE_SLEEP) {
Wayne Roberts 0:6b3ac9c5a042 252 radio.set_opmode(RF_OPMODE_STANDBY);
Wayne Roberts 0:6b3ac9c5a042 253 wait_us(1000);
Wayne Roberts 0:6b3ac9c5a042 254 }
Wayne Roberts 0:6b3ac9c5a042 255 //MAC_PRINTF("Radio::Send() dio:%u:%u opmode:%02x ", radio.dio0.read(), radio.dio1.read(), radio.read_reg(REG_OPMODE));
Wayne Roberts 0:6b3ac9c5a042 256 lora.RegPayloadLength = size;
Wayne Roberts 0:6b3ac9c5a042 257 radio.write_reg(REG_LR_PAYLOADLENGTH, lora.RegPayloadLength);
Wayne Roberts 0:6b3ac9c5a042 258 lora.start_tx(size);
Wayne Roberts 0:6b3ac9c5a042 259 }
Wayne Roberts 0:6b3ac9c5a042 260
Wayne Roberts 0:6b3ac9c5a042 261 /*volatile RadioState_t state;
Wayne Roberts 0:6b3ac9c5a042 262
Wayne Roberts 0:6b3ac9c5a042 263 RadioState_t Radio::GetStatus()
Wayne Roberts 0:6b3ac9c5a042 264 {
Wayne Roberts 0:6b3ac9c5a042 265 return state;
Wayne Roberts 0:6b3ac9c5a042 266 }*/
Wayne Roberts 0:6b3ac9c5a042 267
Wayne Roberts 0:6b3ac9c5a042 268 void Radio::Rx(unsigned timeout)
Wayne Roberts 0:6b3ac9c5a042 269 {
Wayne Roberts 0:6b3ac9c5a042 270 if (timeout == 0)
Wayne Roberts 0:6b3ac9c5a042 271 lora.start_rx(RF_OPMODE_RECEIVER);
Wayne Roberts 0:6b3ac9c5a042 272 else
Wayne Roberts 0:6b3ac9c5a042 273 lora.start_rx(RF_OPMODE_RECEIVER_SINGLE);
Wayne Roberts 0:6b3ac9c5a042 274
Wayne Roberts 0:6b3ac9c5a042 275 MAC_PRINTF("start_rx ");
Wayne Roberts 0:6b3ac9c5a042 276 }
Wayne Roberts 0:6b3ac9c5a042 277
Wayne Roberts 0:6b3ac9c5a042 278
Wayne Roberts 0:6b3ac9c5a042 279 void Radio::ocp(uint8_t ma)
Wayne Roberts 0:6b3ac9c5a042 280 {
Wayne Roberts 0:6b3ac9c5a042 281 if (ma < 130)
Wayne Roberts 0:6b3ac9c5a042 282 radio.RegOcp.bits.OcpTrim = (ma - 45) / 5;
Wayne Roberts 0:6b3ac9c5a042 283 else
Wayne Roberts 0:6b3ac9c5a042 284 radio.RegOcp.bits.OcpTrim = (ma + 30) / 10;
Wayne Roberts 0:6b3ac9c5a042 285 radio.write_reg(REG_OCP, radio.RegOcp.octet);
Wayne Roberts 0:6b3ac9c5a042 286
Wayne Roberts 0:6b3ac9c5a042 287 radio.RegOcp.octet = radio.read_reg(REG_OCP);
Wayne Roberts 0:6b3ac9c5a042 288 if (radio.RegOcp.bits.OcpTrim < 16)
Wayne Roberts 0:6b3ac9c5a042 289 ma = 45 + (5 * radio.RegOcp.bits.OcpTrim);
Wayne Roberts 0:6b3ac9c5a042 290 else if (radio.RegOcp.bits.OcpTrim < 28)
Wayne Roberts 0:6b3ac9c5a042 291 ma = (10 * radio.RegOcp.bits.OcpTrim) - 30;
Wayne Roberts 0:6b3ac9c5a042 292 else
Wayne Roberts 0:6b3ac9c5a042 293 ma = 240;
Wayne Roberts 0:6b3ac9c5a042 294 //MAC_PRINTF("Ocp: %dmA\r\n", ma);
Wayne Roberts 0:6b3ac9c5a042 295 }
Wayne Roberts 0:6b3ac9c5a042 296
Wayne Roberts 0:6b3ac9c5a042 297
Wayne Roberts 0:6b3ac9c5a042 298 void Radio::PrintStatus()
Wayne Roberts 0:6b3ac9c5a042 299 {
Wayne Roberts 0:6b3ac9c5a042 300 MAC_PRINTF("dio:%u:%u opmode:%02x ", radio.dio0.read(), radio.dio1.read(), radio.read_reg(REG_OPMODE));
Wayne Roberts 0:6b3ac9c5a042 301 lora.RegIrqFlags.octet = radio.read_reg(REG_LR_IRQFLAGS);
Wayne Roberts 0:6b3ac9c5a042 302 MAC_PRINTF("irqFlags:%02x\r\n", lora.RegIrqFlags.octet);
Wayne Roberts 0:6b3ac9c5a042 303 }
Wayne Roberts 0:6b3ac9c5a042 304
Wayne Roberts 0:6b3ac9c5a042 305 #ifdef DUTY_ENABLE
Wayne Roberts 0:6b3ac9c5a042 306 us_timestamp_t
Wayne Roberts 0:6b3ac9c5a042 307 Radio::TimeOnAir(RadioModems_t m, uint8_t pktLen)
Wayne Roberts 0:6b3ac9c5a042 308 {
Wayne Roberts 0:6b3ac9c5a042 309 uint32_t airTime = 0;
Wayne Roberts 0:6b3ac9c5a042 310
Wayne Roberts 0:6b3ac9c5a042 311 switch (m)
Wayne Roberts 0:6b3ac9c5a042 312 {
Wayne Roberts 0:6b3ac9c5a042 313 case MODEM_FSK:
Wayne Roberts 0:6b3ac9c5a042 314 {
Wayne Roberts 0:6b3ac9c5a042 315 /* TODO
Wayne Roberts 0:6b3ac9c5a042 316 airTime = round( ( 8 * ( SX1272.Settings.Fsk.PreambleLen +
Wayne Roberts 0:6b3ac9c5a042 317 ( ( SX1272Read( REG_SYNCCONFIG ) & ~RF_SYNCCONFIG_SYNCSIZE_MASK ) + 1 ) +
Wayne Roberts 0:6b3ac9c5a042 318 ( ( SX1272.Settings.Fsk.FixLen == 0x01 ) ? 0.0 : 1.0 ) +
Wayne Roberts 0:6b3ac9c5a042 319 ( ( ( SX1272Read( REG_PACKETCONFIG1 ) & ~RF_PACKETCONFIG1_ADDRSFILTERING_MASK ) != 0x00 ) ? 1.0 : 0 ) +
Wayne Roberts 0:6b3ac9c5a042 320 pktLen +
Wayne Roberts 0:6b3ac9c5a042 321 ( ( SX1272.Settings.Fsk.CrcOn == 0x01 ) ? 2.0 : 0 ) ) /
Wayne Roberts 0:6b3ac9c5a042 322 SX1272.Settings.Fsk.Datarate ) * 1e3 );
Wayne Roberts 0:6b3ac9c5a042 323 */
Wayne Roberts 0:6b3ac9c5a042 324 }
Wayne Roberts 0:6b3ac9c5a042 325 break;
Wayne Roberts 0:6b3ac9c5a042 326 case MODEM_LORA:
Wayne Roberts 0:6b3ac9c5a042 327 {
Wayne Roberts 0:6b3ac9c5a042 328 double bw = 0.0;
Wayne Roberts 0:6b3ac9c5a042 329 uint8_t fixLen, bandwidth, LowDatarateOptimize, coderate, crcOn ;
Wayne Roberts 0:6b3ac9c5a042 330 if (radio.type == SX1276) {
Wayne Roberts 0:6b3ac9c5a042 331 coderate = lora.RegModemConfig.sx1276bits.CodingRate;
Wayne Roberts 0:6b3ac9c5a042 332 LowDatarateOptimize = lora.RegModemConfig3.sx1276bits.LowDataRateOptimize;
Wayne Roberts 0:6b3ac9c5a042 333 fixLen = lora.RegModemConfig.sx1276bits.ImplicitHeaderModeOn;
Wayne Roberts 0:6b3ac9c5a042 334 bandwidth = lora.RegModemConfig.sx1276bits.Bw - 7;
Wayne Roberts 0:6b3ac9c5a042 335 crcOn = lora.RegModemConfig2.sx1276bits.RxPayloadCrcOn;
Wayne Roberts 0:6b3ac9c5a042 336 } else if (radio.type == SX1272) {
Wayne Roberts 0:6b3ac9c5a042 337 coderate = lora.RegModemConfig.sx1272bits.CodingRate;
Wayne Roberts 0:6b3ac9c5a042 338 LowDatarateOptimize = lora.RegModemConfig.sx1272bits.LowDataRateOptimize;
Wayne Roberts 0:6b3ac9c5a042 339 fixLen = lora.RegModemConfig.sx1272bits.ImplicitHeaderModeOn;
Wayne Roberts 0:6b3ac9c5a042 340 bandwidth = lora.RegModemConfig.sx1272bits.Bw;
Wayne Roberts 0:6b3ac9c5a042 341 crcOn = lora.RegModemConfig.sx1272bits.RxPayloadCrcOn;
Wayne Roberts 0:6b3ac9c5a042 342 } else
Wayne Roberts 0:6b3ac9c5a042 343 return 0;
Wayne Roberts 0:6b3ac9c5a042 344
Wayne Roberts 0:6b3ac9c5a042 345 switch( bandwidth )
Wayne Roberts 0:6b3ac9c5a042 346 {
Wayne Roberts 0:6b3ac9c5a042 347 case 0: // 125 kHz
Wayne Roberts 0:6b3ac9c5a042 348 bw = 125;//ms: 125e3;
Wayne Roberts 0:6b3ac9c5a042 349 break;
Wayne Roberts 0:6b3ac9c5a042 350 case 1: // 250 kHz
Wayne Roberts 0:6b3ac9c5a042 351 bw = 250;//ms:250e3;
Wayne Roberts 0:6b3ac9c5a042 352 break;
Wayne Roberts 0:6b3ac9c5a042 353 case 2: // 500 kHz
Wayne Roberts 0:6b3ac9c5a042 354 bw = 500;//ms:500e3;
Wayne Roberts 0:6b3ac9c5a042 355 break;
Wayne Roberts 0:6b3ac9c5a042 356 }
Wayne Roberts 0:6b3ac9c5a042 357
Wayne Roberts 0:6b3ac9c5a042 358 // Symbol rate : time for one symbol (secs)
Wayne Roberts 0:6b3ac9c5a042 359 double rs = bw / ( 1 << lora.RegModemConfig2.sx1276bits.SpreadingFactor );
Wayne Roberts 0:6b3ac9c5a042 360 double ts = 1 / rs;
Wayne Roberts 0:6b3ac9c5a042 361 // time of preamble
Wayne Roberts 0:6b3ac9c5a042 362 double tPreamble;
Wayne Roberts 0:6b3ac9c5a042 363 tPreamble = (lora.RegPreamble + 4.25 ) * ts;
Wayne Roberts 0:6b3ac9c5a042 364 // Symbol length of payload and time
Wayne Roberts 0:6b3ac9c5a042 365 double tmp = ceil( ( 8 * pktLen - 4 * lora.RegModemConfig2.sx1276bits.SpreadingFactor +
Wayne Roberts 0:6b3ac9c5a042 366 28 + 16 * crcOn -
Wayne Roberts 0:6b3ac9c5a042 367 ( fixLen ? 20 : 0 ) ) /
Wayne Roberts 0:6b3ac9c5a042 368 ( double )( 4 * ( lora.RegModemConfig2.sx1276bits.SpreadingFactor -
Wayne Roberts 0:6b3ac9c5a042 369 ( ( LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) *
Wayne Roberts 0:6b3ac9c5a042 370 ( coderate + 4 );
Wayne Roberts 0:6b3ac9c5a042 371 double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 );
Wayne Roberts 0:6b3ac9c5a042 372 double tPayload = nPayload * ts;
Wayne Roberts 0:6b3ac9c5a042 373 // Time on air
Wayne Roberts 0:6b3ac9c5a042 374 double tOnAir = tPreamble + tPayload;
Wayne Roberts 0:6b3ac9c5a042 375 // return ms secs
Wayne Roberts 0:6b3ac9c5a042 376 airTime = floor( tOnAir * 1e3 + 0.999 );
Wayne Roberts 0:6b3ac9c5a042 377 }
Wayne Roberts 0:6b3ac9c5a042 378 break;
Wayne Roberts 0:6b3ac9c5a042 379 }
Wayne Roberts 0:6b3ac9c5a042 380 return airTime;
Wayne Roberts 0:6b3ac9c5a042 381
Wayne Roberts 0:6b3ac9c5a042 382 }
Wayne Roberts 0:6b3ac9c5a042 383 #endif /* DUTY_ENABLE */
Wayne Roberts 0:6b3ac9c5a042 384