Ilya Krylov / sx12xx_hal123

1

radio_sx126x.cpp@14:94993ae5b164, 2019-09-11 (annotated)

Committer:
Wayne Roberts
Date:
Wed Sep 11 13:20:21 2019 -0700
Revision:
14:94993ae5b164
Parent:
7:ba81f66e56d1
Child:
15:e1c04ec39aa4
DioPin_top_half() added to permit scheduling a call to Radio::service()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wayne Roberts 0:9c052ff8dd6a 1 #include "radio.h"
Wayne Roberts 0:9c052ff8dd6a 2 #ifdef SX126x_H
Wayne Roberts 0:9c052ff8dd6a 3 #include "SPIu.h"
Wayne Roberts 0:9c052ff8dd6a 4
Wayne Roberts 0:9c052ff8dd6a 5 LowPowerTimer Radio::lpt;
Wayne Roberts 0:9c052ff8dd6a 6 volatile us_timestamp_t Radio::irqAt;
Wayne Roberts 5:ab124d3842a8 7 bool Radio::paOff;
Wayne Roberts 0:9c052ff8dd6a 8
Wayne Roberts 0:9c052ff8dd6a 9 #ifdef TARGET_FF_ARDUINO
Wayne Roberts 0:9c052ff8dd6a 10 SPIu spi(D11, D12, D13); // mosi, miso, sclk
Wayne Roberts 0:9c052ff8dd6a 11 //spi, nss, busy, dio1
Wayne Roberts 0:9c052ff8dd6a 12 SX126x Radio::radio(spi, D7, D3, D5);
Wayne Roberts 0:9c052ff8dd6a 13
Wayne Roberts 0:9c052ff8dd6a 14 DigitalOut antswPower(D8);
Wayne Roberts 0:9c052ff8dd6a 15 AnalogIn xtalSel(A3);
Wayne Roberts 0:9c052ff8dd6a 16
Wayne Roberts 2:c321b5919516 17 DigitalIn Radio::chipType(A2);
Wayne Roberts 0:9c052ff8dd6a 18
Wayne Roberts 0:9c052ff8dd6a 19 #define PINNAME_NRST A0
Wayne Roberts 0:9c052ff8dd6a 20
Wayne Roberts 0:9c052ff8dd6a 21 #define LED_ON 1
Wayne Roberts 0:9c052ff8dd6a 22 #define LED_OFF 0
Wayne Roberts 0:9c052ff8dd6a 23 DigitalOut tx_led(A4);
Wayne Roberts 0:9c052ff8dd6a 24 DigitalOut rx_led(A5);
Wayne Roberts 0:9c052ff8dd6a 25
Wayne Roberts 0:9c052ff8dd6a 26 void Radio::chipModeChange()
Wayne Roberts 0:9c052ff8dd6a 27 {
Wayne Roberts 0:9c052ff8dd6a 28 if (radio.chipMode == CHIPMODE_NONE) {
Wayne Roberts 0:9c052ff8dd6a 29 tx_led = LED_OFF;
Wayne Roberts 0:9c052ff8dd6a 30 rx_led = LED_OFF;
Wayne Roberts 0:9c052ff8dd6a 31 } else if (radio.chipMode == CHIPMODE_TX) {
Wayne Roberts 0:9c052ff8dd6a 32 tx_led = LED_ON;
Wayne Roberts 0:9c052ff8dd6a 33 rx_led = LED_OFF;
Wayne Roberts 0:9c052ff8dd6a 34 } else if (radio.chipMode == CHIPMODE_RX) {
Wayne Roberts 0:9c052ff8dd6a 35 tx_led = LED_OFF;
Wayne Roberts 0:9c052ff8dd6a 36 rx_led = LED_ON;
Wayne Roberts 0:9c052ff8dd6a 37 }
Wayne Roberts 0:9c052ff8dd6a 38 }
Wayne Roberts 0:9c052ff8dd6a 39 #endif /* TARGET_FF_ARDUINO */
Wayne Roberts 0:9c052ff8dd6a 40
Wayne Roberts 0:9c052ff8dd6a 41 const RadioEvents_t* RadioEvents;
Wayne Roberts 0:9c052ff8dd6a 42 PacketParams_t Radio::pp;
Wayne Roberts 0:9c052ff8dd6a 43 RadioModems_t Radio::_m_;
Wayne Roberts 0:9c052ff8dd6a 44
Wayne Roberts 3:122af639cf0b 45 #if defined(TARGET_FF_MORPHO) && !defined(TARGET_DISCO_L072CZ_LRWAN1)
Wayne Roberts 0:9c052ff8dd6a 46 DigitalOut pc3(PC_3); // debug RX indication, for nucleo boards
Wayne Roberts 3:122af639cf0b 47 #define RX_INDICATION pc3
Wayne Roberts 0:9c052ff8dd6a 48 #endif /* TARGET_FF_MORPHO */
Wayne Roberts 0:9c052ff8dd6a 49
Wayne Roberts 0:9c052ff8dd6a 50 void Radio::Rx(unsigned timeout)
Wayne Roberts 0:9c052ff8dd6a 51 {
Wayne Roberts 0:9c052ff8dd6a 52 antswPower = 1;
Wayne Roberts 0:9c052ff8dd6a 53
Wayne Roberts 0:9c052ff8dd6a 54 {
Wayne Roberts 0:9c052ff8dd6a 55 uint8_t buf[8];
Wayne Roberts 0:9c052ff8dd6a 56 IrqFlags_t irqEnable;
Wayne Roberts 0:9c052ff8dd6a 57 irqEnable.word = 0;
Wayne Roberts 0:9c052ff8dd6a 58 irqEnable.bits.RxDone = 1;
Wayne Roberts 0:9c052ff8dd6a 59 irqEnable.bits.Timeout = 1;
Wayne Roberts 0:9c052ff8dd6a 60
Wayne Roberts 0:9c052ff8dd6a 61 buf[0] = irqEnable.word >> 8; // enable bits
Wayne Roberts 0:9c052ff8dd6a 62 buf[1] = irqEnable.word; // enable bits
Wayne Roberts 0:9c052ff8dd6a 63 buf[2] = irqEnable.word >> 8; // dio1
Wayne Roberts 0:9c052ff8dd6a 64 buf[3] = irqEnable.word; // dio1
Wayne Roberts 0:9c052ff8dd6a 65 buf[4] = 0; // dio2
Wayne Roberts 0:9c052ff8dd6a 66 buf[5] = 0; // dio2
Wayne Roberts 0:9c052ff8dd6a 67 buf[6] = 0; // dio3
Wayne Roberts 0:9c052ff8dd6a 68 buf[7] = 0; // dio3
Wayne Roberts 0:9c052ff8dd6a 69 radio.xfer(OPCODE_SET_DIO_IRQ_PARAMS, 8, 0, buf);
Wayne Roberts 0:9c052ff8dd6a 70 }
Wayne Roberts 0:9c052ff8dd6a 71
Wayne Roberts 3:122af639cf0b 72 #ifdef RX_INDICATION
Wayne Roberts 3:122af639cf0b 73 RX_INDICATION = 1;
Wayne Roberts 3:122af639cf0b 74 #endif
Wayne Roberts 0:9c052ff8dd6a 75 if (timeout == 0)
Wayne Roberts 0:9c052ff8dd6a 76 radio.start_rx(RX_TIMEOUT_CONTINUOUS);
Wayne Roberts 0:9c052ff8dd6a 77 else
Wayne Roberts 0:9c052ff8dd6a 78 radio.start_rx(timeout * RC_TICKS_PER_US);
Wayne Roberts 0:9c052ff8dd6a 79 }
Wayne Roberts 0:9c052ff8dd6a 80
Wayne Roberts 0:9c052ff8dd6a 81 void Radio::Standby()
Wayne Roberts 0:9c052ff8dd6a 82 {
Wayne Roberts 0:9c052ff8dd6a 83 radio.setStandby(STBY_RC); // STBY_XOSC
Wayne Roberts 0:9c052ff8dd6a 84
Wayne Roberts 0:9c052ff8dd6a 85 antswPower = 0;
Wayne Roberts 0:9c052ff8dd6a 86 }
Wayne Roberts 0:9c052ff8dd6a 87
Wayne Roberts 0:9c052ff8dd6a 88 void Radio::Sleep()
Wayne Roberts 0:9c052ff8dd6a 89 {
Wayne Roberts 0:9c052ff8dd6a 90 radio.setSleep(true, false);
Wayne Roberts 0:9c052ff8dd6a 91
Wayne Roberts 0:9c052ff8dd6a 92 antswPower = 0;
Wayne Roberts 0:9c052ff8dd6a 93 }
Wayne Roberts 0:9c052ff8dd6a 94
Wayne Roberts 0:9c052ff8dd6a 95 void Radio::set_tx_dbm(int8_t dbm)
Wayne Roberts 0:9c052ff8dd6a 96 {
Wayne Roberts 5:ab124d3842a8 97 unsigned v = radio.readReg(REG_ADDR_ANACTRL16, 1);
Wayne Roberts 5:ab124d3842a8 98
Wayne Roberts 5:ab124d3842a8 99 if (dbm == PA_OFF_DBM) {
Wayne Roberts 5:ab124d3842a8 100 /* bench test: prevent overloading receiving station (very low tx power) */
Wayne Roberts 5:ab124d3842a8 101 if ((v & 0x10) == 0) {
Wayne Roberts 5:ab124d3842a8 102 v |= 0x10;
Wayne Roberts 5:ab124d3842a8 103 radio.writeReg(REG_ADDR_ANACTRL16, v, 1);
Wayne Roberts 5:ab124d3842a8 104 }
Wayne Roberts 5:ab124d3842a8 105 paOff = true;
Wayne Roberts 5:ab124d3842a8 106 } else {
Wayne Roberts 5:ab124d3842a8 107 radio.set_tx_dbm(chipType == CHIP_TYPE_SX1262, dbm);
Wayne Roberts 5:ab124d3842a8 108 if (v & 0x10) {
Wayne Roberts 5:ab124d3842a8 109 v &= ~0x10;
Wayne Roberts 5:ab124d3842a8 110 radio.writeReg(REG_ADDR_ANACTRL16, v, 1);
Wayne Roberts 5:ab124d3842a8 111 }
Wayne Roberts 5:ab124d3842a8 112 paOff = false;
Wayne Roberts 5:ab124d3842a8 113 }
Wayne Roberts 0:9c052ff8dd6a 114 }
Wayne Roberts 0:9c052ff8dd6a 115
Wayne Roberts 0:9c052ff8dd6a 116 void Radio::SetTxContinuousWave(unsigned hz, int8_t dbm, unsigned timeout_us)
Wayne Roberts 0:9c052ff8dd6a 117 {
Wayne Roberts 0:9c052ff8dd6a 118 SetChannel(hz);
Wayne Roberts 0:9c052ff8dd6a 119 radio.set_tx_dbm(chipType == CHIP_TYPE_SX1262, dbm);
Wayne Roberts 4:57080d572494 120 radio.xfer(OPCODE_SET_TX_CARRIER, 0, 0, NULL);
Wayne Roberts 0:9c052ff8dd6a 121 }
Wayne Roberts 0:9c052ff8dd6a 122
Wayne Roberts 0:9c052ff8dd6a 123 uint32_t Radio::Random(void)
Wayne Roberts 0:9c052ff8dd6a 124 {
Wayne Roberts 0:9c052ff8dd6a 125 uint32_t ret;
Wayne Roberts 0:9c052ff8dd6a 126
Wayne Roberts 0:9c052ff8dd6a 127 radio.start_rx(RX_TIMEOUT_CONTINUOUS);
Wayne Roberts 0:9c052ff8dd6a 128
Wayne Roberts 0:9c052ff8dd6a 129 ret = radio.readReg(REG_ADDR_RANDOM, 4);
Wayne Roberts 0:9c052ff8dd6a 130
Wayne Roberts 0:9c052ff8dd6a 131 Standby();
Wayne Roberts 0:9c052ff8dd6a 132
Wayne Roberts 0:9c052ff8dd6a 133 return ret;
Wayne Roberts 0:9c052ff8dd6a 134 }
Wayne Roberts 0:9c052ff8dd6a 135
Wayne Roberts 0:9c052ff8dd6a 136 bool Radio::CheckRfFrequency(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 137 {
Wayne Roberts 0:9c052ff8dd6a 138 return true;
Wayne Roberts 0:9c052ff8dd6a 139 }
Wayne Roberts 0:9c052ff8dd6a 140
Wayne Roberts 0:9c052ff8dd6a 141 void Radio::SetChannel(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 142 {
Wayne Roberts 0:9c052ff8dd6a 143 radio.setMHz(hz / 1000000.0);
Wayne Roberts 0:9c052ff8dd6a 144 }
Wayne Roberts 0:9c052ff8dd6a 145
Wayne Roberts 0:9c052ff8dd6a 146 float Radio::getFrfMHz()
Wayne Roberts 0:9c052ff8dd6a 147 {
Wayne Roberts 0:9c052ff8dd6a 148 return radio.getMHz();
Wayne Roberts 0:9c052ff8dd6a 149 }
Wayne Roberts 0:9c052ff8dd6a 150
Wayne Roberts 0:9c052ff8dd6a 151 void Radio::LoRaPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn, bool invIQ)
Wayne Roberts 0:9c052ff8dd6a 152 {
Wayne Roberts 0:9c052ff8dd6a 153 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 0:9c052ff8dd6a 154 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 0:9c052ff8dd6a 155
Wayne Roberts 0:9c052ff8dd6a 156 pp.lora.PreambleLengthHi = preambleLen >> 8;
Wayne Roberts 0:9c052ff8dd6a 157 pp.lora.PreambleLengthLo = preambleLen;
Wayne Roberts 0:9c052ff8dd6a 158 pp.lora.HeaderType = fixLen;
Wayne Roberts 0:9c052ff8dd6a 159 pp.lora.CRCType = crcOn;
Wayne Roberts 0:9c052ff8dd6a 160 pp.lora.InvertIQ = invIQ;
Wayne Roberts 0:9c052ff8dd6a 161
Wayne Roberts 0:9c052ff8dd6a 162 radio.xfer(OPCODE_SET_PACKET_PARAMS, 6, 0, pp.buf);
Wayne Roberts 0:9c052ff8dd6a 163 }
Wayne Roberts 0:9c052ff8dd6a 164
Wayne Roberts 0:9c052ff8dd6a 165 void Radio::GFSKModemConfig(unsigned bps, unsigned bw_hz, unsigned fdev_hz)
Wayne Roberts 0:9c052ff8dd6a 166 {
Wayne Roberts 0:9c052ff8dd6a 167 ModulationParams_t mp;
Wayne Roberts 0:9c052ff8dd6a 168 uint32_t u32;
Wayne Roberts 0:9c052ff8dd6a 169
Wayne Roberts 0:9c052ff8dd6a 170 if (radio.getPacketType() != PACKET_TYPE_GFSK)
Wayne Roberts 0:9c052ff8dd6a 171 radio.setPacketType(PACKET_TYPE_GFSK);
Wayne Roberts 0:9c052ff8dd6a 172
Wayne Roberts 0:9c052ff8dd6a 173 u32 = 32 * (XTAL_FREQ_HZ / bps);
Wayne Roberts 0:9c052ff8dd6a 174 mp.gfsk.bitrateHi = u32 >> 16; // param1
Wayne Roberts 0:9c052ff8dd6a 175 mp.gfsk.bitrateMid = u32 >> 8; // param2
Wayne Roberts 0:9c052ff8dd6a 176 mp.gfsk.bitrateLo = u32; // param3
Wayne Roberts 0:9c052ff8dd6a 177 mp.gfsk.PulseShape = GFSK_SHAPE_BT1_0; // param4
Wayne Roberts 0:9c052ff8dd6a 178 // param5:
Wayne Roberts 0:9c052ff8dd6a 179 if (bw_hz < 5800)
Wayne Roberts 0:9c052ff8dd6a 180 mp.gfsk.bandwidth = GFSK_RX_BW_4800;
Wayne Roberts 0:9c052ff8dd6a 181 else if (bw_hz < 7300)
Wayne Roberts 0:9c052ff8dd6a 182 mp.gfsk.bandwidth = GFSK_RX_BW_5800;
Wayne Roberts 0:9c052ff8dd6a 183 else if (bw_hz < 9700)
Wayne Roberts 0:9c052ff8dd6a 184 mp.gfsk.bandwidth = GFSK_RX_BW_7300;
Wayne Roberts 0:9c052ff8dd6a 185 else if (bw_hz < 11700)
Wayne Roberts 0:9c052ff8dd6a 186 mp.gfsk.bandwidth = GFSK_RX_BW_9700;
Wayne Roberts 0:9c052ff8dd6a 187 else if (bw_hz < 14600)
Wayne Roberts 0:9c052ff8dd6a 188 mp.gfsk.bandwidth = GFSK_RX_BW_11700;
Wayne Roberts 0:9c052ff8dd6a 189 else if (bw_hz < 19500)
Wayne Roberts 0:9c052ff8dd6a 190 mp.gfsk.bandwidth = GFSK_RX_BW_14600;
Wayne Roberts 0:9c052ff8dd6a 191 else if (bw_hz < 23400)
Wayne Roberts 0:9c052ff8dd6a 192 mp.gfsk.bandwidth = GFSK_RX_BW_19500;
Wayne Roberts 0:9c052ff8dd6a 193 else if (bw_hz < 29300)
Wayne Roberts 0:9c052ff8dd6a 194 mp.gfsk.bandwidth = GFSK_RX_BW_23400;
Wayne Roberts 0:9c052ff8dd6a 195 else if (bw_hz < 39000)
Wayne Roberts 0:9c052ff8dd6a 196 mp.gfsk.bandwidth = GFSK_RX_BW_29300;
Wayne Roberts 0:9c052ff8dd6a 197 else if (bw_hz < 46900)
Wayne Roberts 0:9c052ff8dd6a 198 mp.gfsk.bandwidth = GFSK_RX_BW_39000;
Wayne Roberts 0:9c052ff8dd6a 199 else if (bw_hz < 58600)
Wayne Roberts 0:9c052ff8dd6a 200 mp.gfsk.bandwidth = GFSK_RX_BW_46900;
Wayne Roberts 0:9c052ff8dd6a 201 else if (bw_hz < 78200)
Wayne Roberts 0:9c052ff8dd6a 202 mp.gfsk.bandwidth = GFSK_RX_BW_58600;
Wayne Roberts 0:9c052ff8dd6a 203 else if (bw_hz < 93800)
Wayne Roberts 0:9c052ff8dd6a 204 mp.gfsk.bandwidth = GFSK_RX_BW_78200;
Wayne Roberts 0:9c052ff8dd6a 205 else if (bw_hz < 117300)
Wayne Roberts 0:9c052ff8dd6a 206 mp.gfsk.bandwidth = GFSK_RX_BW_93800;
Wayne Roberts 0:9c052ff8dd6a 207 else if (bw_hz < 156200)
Wayne Roberts 0:9c052ff8dd6a 208 mp.gfsk.bandwidth = GFSK_RX_BW_117300;
Wayne Roberts 0:9c052ff8dd6a 209 else if (bw_hz < 187200)
Wayne Roberts 0:9c052ff8dd6a 210 mp.gfsk.bandwidth = GFSK_RX_BW_156200;
Wayne Roberts 0:9c052ff8dd6a 211 else if (bw_hz < 234300)
Wayne Roberts 0:9c052ff8dd6a 212 mp.gfsk.bandwidth = GFSK_RX_BW_187200;
Wayne Roberts 0:9c052ff8dd6a 213 else if (bw_hz < 312000)
Wayne Roberts 0:9c052ff8dd6a 214 mp.gfsk.bandwidth = GFSK_RX_BW_234300;
Wayne Roberts 0:9c052ff8dd6a 215 else if (bw_hz < 373600)
Wayne Roberts 0:9c052ff8dd6a 216 mp.gfsk.bandwidth = GFSK_RX_BW_312000;
Wayne Roberts 0:9c052ff8dd6a 217 else if (bw_hz < 467000)
Wayne Roberts 0:9c052ff8dd6a 218 mp.gfsk.bandwidth = GFSK_RX_BW_373600;
Wayne Roberts 0:9c052ff8dd6a 219 else
Wayne Roberts 0:9c052ff8dd6a 220 mp.gfsk.bandwidth = GFSK_RX_BW_467000;
Wayne Roberts 0:9c052ff8dd6a 221
Wayne Roberts 0:9c052ff8dd6a 222 if (fdev_hz > 0) {
Wayne Roberts 0:9c052ff8dd6a 223 u32 = fdev_hz / FREQ_STEP;
Wayne Roberts 0:9c052ff8dd6a 224 mp.gfsk.fdevHi = u32 >> 16; // param6
Wayne Roberts 0:9c052ff8dd6a 225 mp.gfsk.fdevMid = u32 >> 8; // param7
Wayne Roberts 0:9c052ff8dd6a 226 mp.gfsk.fdevLo = u32; // param8
Wayne Roberts 0:9c052ff8dd6a 227 }
Wayne Roberts 0:9c052ff8dd6a 228
Wayne Roberts 0:9c052ff8dd6a 229 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 8, 0, mp.buf);
Wayne Roberts 0:9c052ff8dd6a 230 }
Wayne Roberts 0:9c052ff8dd6a 231
Wayne Roberts 0:9c052ff8dd6a 232 void Radio::GFSKPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn)
Wayne Roberts 0:9c052ff8dd6a 233 {
Wayne Roberts 0:9c052ff8dd6a 234 if (radio.getPacketType() != PACKET_TYPE_GFSK)
Wayne Roberts 0:9c052ff8dd6a 235 radio.setPacketType(PACKET_TYPE_GFSK);
Wayne Roberts 0:9c052ff8dd6a 236
Wayne Roberts 0:9c052ff8dd6a 237 pp.gfsk.PreambleLengthHi = preambleLen >> 8;
Wayne Roberts 0:9c052ff8dd6a 238 pp.gfsk.PreambleLengthLo = preambleLen;
Wayne Roberts 0:9c052ff8dd6a 239 pp.gfsk.PreambleDetectorLength = GFSK_PREAMBLE_DETECTOR_LENGTH_16BITS;
Wayne Roberts 0:9c052ff8dd6a 240 pp.gfsk.SyncWordLength = 24; // 0xC194C1
Wayne Roberts 0:9c052ff8dd6a 241 pp.gfsk.AddrComp = 0;
Wayne Roberts 0:9c052ff8dd6a 242 pp.gfsk.PacketType = fixLen;
Wayne Roberts 0:9c052ff8dd6a 243 if (crcOn)
Wayne Roberts 0:9c052ff8dd6a 244 pp.gfsk.CRCType = GFSK_CRC_2_BYTE;
Wayne Roberts 0:9c052ff8dd6a 245 else
Wayne Roberts 0:9c052ff8dd6a 246 pp.gfsk.CRCType = GFSK_CRC_OFF;
Wayne Roberts 0:9c052ff8dd6a 247
Wayne Roberts 0:9c052ff8dd6a 248 //TODO pp.gfsk.PayloadLength = ;
Wayne Roberts 0:9c052ff8dd6a 249
Wayne Roberts 0:9c052ff8dd6a 250 radio.xfer(OPCODE_SET_PACKET_PARAMS, 8, 0, pp.buf);
Wayne Roberts 0:9c052ff8dd6a 251 }
Wayne Roberts 0:9c052ff8dd6a 252
Wayne Roberts 0:9c052ff8dd6a 253 void Radio::LoRaModemConfig(unsigned bwKHz, uint8_t sf, uint8_t cr)
Wayne Roberts 0:9c052ff8dd6a 254 {
Wayne Roberts 0:9c052ff8dd6a 255 ModulationParams_t mp;
Wayne Roberts 0:9c052ff8dd6a 256 float khz, sp;
Wayne Roberts 0:9c052ff8dd6a 257
Wayne Roberts 0:9c052ff8dd6a 258 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 0:9c052ff8dd6a 259 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 0:9c052ff8dd6a 260
Wayne Roberts 0:9c052ff8dd6a 261 if (bwKHz > 250) {
Wayne Roberts 0:9c052ff8dd6a 262 mp.lora.bandwidth = LORA_BW_500;
Wayne Roberts 0:9c052ff8dd6a 263 khz = 500;
Wayne Roberts 0:9c052ff8dd6a 264 } else if (bwKHz > 125) {
Wayne Roberts 0:9c052ff8dd6a 265 mp.lora.bandwidth = LORA_BW_250;
Wayne Roberts 0:9c052ff8dd6a 266 khz = 250;
Wayne Roberts 0:9c052ff8dd6a 267 } else if (bwKHz > 63) {
Wayne Roberts 0:9c052ff8dd6a 268 mp.lora.bandwidth = LORA_BW_125;
Wayne Roberts 0:9c052ff8dd6a 269 khz = 125;
Wayne Roberts 0:9c052ff8dd6a 270 } else if (bwKHz > 42) {
Wayne Roberts 0:9c052ff8dd6a 271 mp.lora.bandwidth = LORA_BW_62;
Wayne Roberts 0:9c052ff8dd6a 272 khz = 62.5;
Wayne Roberts 0:9c052ff8dd6a 273 } else if (bwKHz > 32) {
Wayne Roberts 0:9c052ff8dd6a 274 mp.lora.bandwidth = LORA_BW_41;
Wayne Roberts 0:9c052ff8dd6a 275 khz = 41.67;
Wayne Roberts 0:9c052ff8dd6a 276 } else if (bwKHz > 21) {
Wayne Roberts 0:9c052ff8dd6a 277 mp.lora.bandwidth = LORA_BW_31;
Wayne Roberts 0:9c052ff8dd6a 278 khz = 31.25;
Wayne Roberts 0:9c052ff8dd6a 279 } else if (bwKHz > 16) {
Wayne Roberts 0:9c052ff8dd6a 280 mp.lora.bandwidth = LORA_BW_20;
Wayne Roberts 0:9c052ff8dd6a 281 khz = 20.83;
Wayne Roberts 0:9c052ff8dd6a 282 } else if (bwKHz > 11) {
Wayne Roberts 0:9c052ff8dd6a 283 mp.lora.bandwidth = LORA_BW_15;
Wayne Roberts 0:9c052ff8dd6a 284 khz = 15.625;
Wayne Roberts 0:9c052ff8dd6a 285 } else if (bwKHz > 11) {
Wayne Roberts 0:9c052ff8dd6a 286 mp.lora.bandwidth = LORA_BW_10;
Wayne Roberts 0:9c052ff8dd6a 287 khz = 10.42;
Wayne Roberts 0:9c052ff8dd6a 288 } else {
Wayne Roberts 0:9c052ff8dd6a 289 mp.lora.bandwidth = LORA_BW_7;
Wayne Roberts 0:9c052ff8dd6a 290 khz = 7.81;
Wayne Roberts 0:9c052ff8dd6a 291 }
Wayne Roberts 0:9c052ff8dd6a 292
Wayne Roberts 0:9c052ff8dd6a 293 mp.lora.spreadingFactor = sf;
Wayne Roberts 0:9c052ff8dd6a 294 mp.lora.codingRate = cr;
Wayne Roberts 0:9c052ff8dd6a 295
Wayne Roberts 0:9c052ff8dd6a 296 sp = (1 << mp.lora.spreadingFactor) / khz;
Wayne Roberts 0:9c052ff8dd6a 297 /* TCXO dependent */
Wayne Roberts 0:9c052ff8dd6a 298 if (sp > 16)
Wayne Roberts 0:9c052ff8dd6a 299 mp.lora.LowDatarateOptimize = 1; // param4
Wayne Roberts 0:9c052ff8dd6a 300 else
Wayne Roberts 0:9c052ff8dd6a 301 mp.lora.LowDatarateOptimize = 0; // param4
Wayne Roberts 0:9c052ff8dd6a 302
Wayne Roberts 0:9c052ff8dd6a 303 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 4, 0, mp.buf);
Wayne Roberts 0:9c052ff8dd6a 304
Wayne Roberts 0:9c052ff8dd6a 305 }
Wayne Roberts 0:9c052ff8dd6a 306
Wayne Roberts 0:9c052ff8dd6a 307 void Radio::SetLoRaSymbolTimeout(uint8_t symbs)
Wayne Roberts 0:9c052ff8dd6a 308 {
Wayne Roberts 0:9c052ff8dd6a 309 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 0:9c052ff8dd6a 310 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 0:9c052ff8dd6a 311
Wayne Roberts 0:9c052ff8dd6a 312 radio.xfer(OPCODE_SET_LORA_SYMBOL_TIMEOUT, 1, 0, &symbs);
Wayne Roberts 0:9c052ff8dd6a 313 }
Wayne Roberts 0:9c052ff8dd6a 314
Wayne Roberts 7:ba81f66e56d1 315 float Radio::GetRssiInst()
Wayne Roberts 7:ba81f66e56d1 316 {
Wayne Roberts 7:ba81f66e56d1 317 uint8_t buf[8];
Wayne Roberts 7:ba81f66e56d1 318
Wayne Roberts 7:ba81f66e56d1 319 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 7:ba81f66e56d1 320 return buf[1] / -2.0;
Wayne Roberts 7:ba81f66e56d1 321 }
Wayne Roberts 7:ba81f66e56d1 322
Wayne Roberts 0:9c052ff8dd6a 323 int Radio::Send(uint8_t size, timestamp_t maxListenTime, timestamp_t channelFreeTime, int rssiThresh)
Wayne Roberts 0:9c052ff8dd6a 324 {
Wayne Roberts 0:9c052ff8dd6a 325 uint8_t buf[8];
Wayne Roberts 0:9c052ff8dd6a 326 uint8_t pktType = radio.getPacketType();
Wayne Roberts 0:9c052ff8dd6a 327
Wayne Roberts 0:9c052ff8dd6a 328 buf[0] = 0; // TX base address
Wayne Roberts 0:9c052ff8dd6a 329 buf[1] = 0; // RX base address
Wayne Roberts 0:9c052ff8dd6a 330 radio.xfer(OPCODE_SET_BUFFER_BASE_ADDR, 2, 0, buf);
Wayne Roberts 0:9c052ff8dd6a 331
Wayne Roberts 0:9c052ff8dd6a 332 if (pktType == PACKET_TYPE_GFSK) {
Wayne Roberts 0:9c052ff8dd6a 333 pp.gfsk.PayloadLength = size;
Wayne Roberts 0:9c052ff8dd6a 334 radio.xfer(OPCODE_SET_PACKET_PARAMS, 8, 0, pp.buf);
Wayne Roberts 0:9c052ff8dd6a 335 } else if (pktType == PACKET_TYPE_LORA) {
Wayne Roberts 0:9c052ff8dd6a 336 pp.lora.PayloadLength = size;
Wayne Roberts 0:9c052ff8dd6a 337 radio.xfer(OPCODE_SET_PACKET_PARAMS, 6, 0, pp.buf);
Wayne Roberts 0:9c052ff8dd6a 338 }
Wayne Roberts 0:9c052ff8dd6a 339
Wayne Roberts 0:9c052ff8dd6a 340 {
Wayne Roberts 0:9c052ff8dd6a 341 IrqFlags_t irqEnable;
Wayne Roberts 0:9c052ff8dd6a 342 irqEnable.word = 0;
Wayne Roberts 0:9c052ff8dd6a 343 irqEnable.bits.TxDone = 1;
Wayne Roberts 0:9c052ff8dd6a 344 irqEnable.bits.Timeout = 1;
Wayne Roberts 0:9c052ff8dd6a 345
Wayne Roberts 0:9c052ff8dd6a 346 buf[0] = irqEnable.word >> 8; // enable bits
Wayne Roberts 0:9c052ff8dd6a 347 buf[1] = irqEnable.word; // enable bits
Wayne Roberts 0:9c052ff8dd6a 348 buf[2] = irqEnable.word >> 8; // dio1
Wayne Roberts 0:9c052ff8dd6a 349 buf[3] = irqEnable.word; // dio1
Wayne Roberts 0:9c052ff8dd6a 350 buf[4] = 0; // dio2
Wayne Roberts 0:9c052ff8dd6a 351 buf[5] = 0; // dio2
Wayne Roberts 0:9c052ff8dd6a 352 buf[6] = 0; // dio3
Wayne Roberts 0:9c052ff8dd6a 353 buf[7] = 0; // dio3
Wayne Roberts 0:9c052ff8dd6a 354 radio.xfer(OPCODE_SET_DIO_IRQ_PARAMS, 8, 0, buf);
Wayne Roberts 0:9c052ff8dd6a 355 }
Wayne Roberts 0:9c052ff8dd6a 356
Wayne Roberts 0:9c052ff8dd6a 357 antswPower = 1;
Wayne Roberts 0:9c052ff8dd6a 358
Wayne Roberts 0:9c052ff8dd6a 359 if (maxListenTime > 0) {
Wayne Roberts 0:9c052ff8dd6a 360 int rssi;
Wayne Roberts 0:9c052ff8dd6a 361 us_timestamp_t startAt, chFreeAt, now;
Wayne Roberts 0:9c052ff8dd6a 362 uint8_t symbs = 0;
Wayne Roberts 0:9c052ff8dd6a 363
Wayne Roberts 0:9c052ff8dd6a 364 radio.xfer(OPCODE_SET_LORA_SYMBOL_TIMEOUT, 1, 0, &symbs);
Wayne Roberts 0:9c052ff8dd6a 365
Wayne Roberts 0:9c052ff8dd6a 366 radio.start_rx(RX_TIMEOUT_CONTINUOUS);
Wayne Roberts 0:9c052ff8dd6a 367 startAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 368 Lstart:
Wayne Roberts 0:9c052ff8dd6a 369 do {
Wayne Roberts 0:9c052ff8dd6a 370 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 371 if ((now - startAt) > maxListenTime) {
Wayne Roberts 0:9c052ff8dd6a 372 return -1;
Wayne Roberts 0:9c052ff8dd6a 373 }
Wayne Roberts 0:9c052ff8dd6a 374 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 375 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 376 } while (rssi > rssiThresh);
Wayne Roberts 0:9c052ff8dd6a 377 chFreeAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 378 do {
Wayne Roberts 0:9c052ff8dd6a 379 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 380 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 381 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 382 if (rssi > rssiThresh) {
Wayne Roberts 0:9c052ff8dd6a 383 goto Lstart;
Wayne Roberts 0:9c052ff8dd6a 384 }
Wayne Roberts 0:9c052ff8dd6a 385 } while ((now - chFreeAt) < channelFreeTime);
Wayne Roberts 0:9c052ff8dd6a 386 }
Wayne Roberts 0:9c052ff8dd6a 387
Wayne Roberts 5:ab124d3842a8 388 if (paOff) {
Wayne Roberts 5:ab124d3842a8 389 unsigned v = radio.readReg(REG_ADDR_ANACTRL16, 1);
Wayne Roberts 5:ab124d3842a8 390 if ((v & 0x10) == 0) {
Wayne Roberts 5:ab124d3842a8 391 v |= 0x10;
Wayne Roberts 5:ab124d3842a8 392 radio.writeReg(REG_ADDR_ANACTRL16, v, 1);
Wayne Roberts 5:ab124d3842a8 393 }
Wayne Roberts 5:ab124d3842a8 394 }
Wayne Roberts 0:9c052ff8dd6a 395 radio.start_tx(size);
Wayne Roberts 0:9c052ff8dd6a 396
Wayne Roberts 0:9c052ff8dd6a 397 return 0;
Wayne Roberts 0:9c052ff8dd6a 398 } // ..Send()
Wayne Roberts 0:9c052ff8dd6a 399
Wayne Roberts 1:e79b0a55135f 400 void Radio::SetRxMaxPayloadLength(uint8_t max)
Wayne Roberts 0:9c052ff8dd6a 401 {
Wayne Roberts 1:e79b0a55135f 402 uint8_t pktType = radio.getPacketType();
Wayne Roberts 0:9c052ff8dd6a 403
Wayne Roberts 1:e79b0a55135f 404 if (pktType == PACKET_TYPE_GFSK) {
Wayne Roberts 0:9c052ff8dd6a 405 pp.gfsk.PayloadLength = max;
Wayne Roberts 1:e79b0a55135f 406 radio.xfer(OPCODE_SET_PACKET_PARAMS, 8, 0, pp.buf);
Wayne Roberts 1:e79b0a55135f 407 } else if (pktType == PACKET_TYPE_LORA) {
Wayne Roberts 0:9c052ff8dd6a 408 pp.lora.PayloadLength = max;
Wayne Roberts 1:e79b0a55135f 409 radio.xfer(OPCODE_SET_PACKET_PARAMS, 6, 0, pp.buf);
Wayne Roberts 0:9c052ff8dd6a 410 }
Wayne Roberts 0:9c052ff8dd6a 411 }
Wayne Roberts 0:9c052ff8dd6a 412
Wayne Roberts 0:9c052ff8dd6a 413 void Radio::dio1_top_half()
Wayne Roberts 0:9c052ff8dd6a 414 {
Wayne Roberts 0:9c052ff8dd6a 415 irqAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 416
Wayne Roberts 14:94993ae5b164 417 if (RadioEvents->DioPin_top_half)
Wayne Roberts 14:94993ae5b164 418 RadioEvents->DioPin_top_half();
Wayne Roberts 14:94993ae5b164 419
Wayne Roberts 0:9c052ff8dd6a 420 if (radio.chipMode == CHIPMODE_TX) {
Wayne Roberts 0:9c052ff8dd6a 421 /* TxDone handling requires low latency */
Wayne Roberts 0:9c052ff8dd6a 422 if (RadioEvents->TxDone_topHalf) {
Wayne Roberts 0:9c052ff8dd6a 423 RadioEvents->TxDone_topHalf();
Wayne Roberts 0:9c052ff8dd6a 424 }
Wayne Roberts 0:9c052ff8dd6a 425 } else {
Wayne Roberts 3:122af639cf0b 426 #ifdef RX_INDICATION
Wayne Roberts 3:122af639cf0b 427 RX_INDICATION = 0;
Wayne Roberts 3:122af639cf0b 428 #endif
Wayne Roberts 0:9c052ff8dd6a 429 }
Wayne Roberts 0:9c052ff8dd6a 430 }
Wayne Roberts 0:9c052ff8dd6a 431
Wayne Roberts 0:9c052ff8dd6a 432 void Radio::timeout_callback(bool tx)
Wayne Roberts 0:9c052ff8dd6a 433 {
Wayne Roberts 0:9c052ff8dd6a 434 if (!tx) {
Wayne Roberts 0:9c052ff8dd6a 435 if (RadioEvents->RxTimeout)
Wayne Roberts 0:9c052ff8dd6a 436 RadioEvents->RxTimeout();
Wayne Roberts 3:122af639cf0b 437 #ifdef RX_INDICATION
Wayne Roberts 3:122af639cf0b 438 RX_INDICATION = 0;
Wayne Roberts 3:122af639cf0b 439 #endif
Wayne Roberts 0:9c052ff8dd6a 440 } // else TODO tx timeout
Wayne Roberts 0:9c052ff8dd6a 441 }
Wayne Roberts 0:9c052ff8dd6a 442
Wayne Roberts 0:9c052ff8dd6a 443 void Radio::rx_done(uint8_t size, float rssi, float snr)
Wayne Roberts 0:9c052ff8dd6a 444 {
Wayne Roberts 0:9c052ff8dd6a 445 RadioEvents->RxDone(size, rssi, snr);
Wayne Roberts 0:9c052ff8dd6a 446 }
Wayne Roberts 0:9c052ff8dd6a 447
Wayne Roberts 0:9c052ff8dd6a 448 void Radio::txDoneBottom()
Wayne Roberts 0:9c052ff8dd6a 449 {
Wayne Roberts 0:9c052ff8dd6a 450 if (RadioEvents->TxDone_botHalf)
Wayne Roberts 0:9c052ff8dd6a 451 RadioEvents->TxDone_botHalf();
Wayne Roberts 0:9c052ff8dd6a 452 }
Wayne Roberts 0:9c052ff8dd6a 453
Wayne Roberts 0:9c052ff8dd6a 454 void Radio::Init(const RadioEvents_t* e)
Wayne Roberts 0:9c052ff8dd6a 455 {
Wayne Roberts 0:9c052ff8dd6a 456 radio.txDone = txDoneBottom;
Wayne Roberts 0:9c052ff8dd6a 457 radio.rxDone = rx_done;
Wayne Roberts 0:9c052ff8dd6a 458 radio.timeout = timeout_callback;
Wayne Roberts 0:9c052ff8dd6a 459 radio.chipModeChange = chipModeChange;
Wayne Roberts 0:9c052ff8dd6a 460 radio.dio1_topHalf = dio1_top_half;
Wayne Roberts 0:9c052ff8dd6a 461
Wayne Roberts 0:9c052ff8dd6a 462 RadioEvents = e;
Wayne Roberts 0:9c052ff8dd6a 463 lpt.start();
Wayne Roberts 0:9c052ff8dd6a 464
Wayne Roberts 0:9c052ff8dd6a 465 radio.SetDIO2AsRfSwitchCtrl(1);
Wayne Roberts 0:9c052ff8dd6a 466 }
Wayne Roberts 0:9c052ff8dd6a 467
Wayne Roberts 0:9c052ff8dd6a 468 void Radio::service()
Wayne Roberts 0:9c052ff8dd6a 469 {
Wayne Roberts 0:9c052ff8dd6a 470 radio.service();
Wayne Roberts 0:9c052ff8dd6a 471 }
Wayne Roberts 0:9c052ff8dd6a 472
Wayne Roberts 0:9c052ff8dd6a 473 void Radio::SetPublicNetwork(bool en)
Wayne Roberts 0:9c052ff8dd6a 474 {
Wayne Roberts 0:9c052ff8dd6a 475 uint16_t ppg;
Wayne Roberts 0:9c052ff8dd6a 476
Wayne Roberts 0:9c052ff8dd6a 477 if (en)
Wayne Roberts 0:9c052ff8dd6a 478 ppg = 0x3444;
Wayne Roberts 0:9c052ff8dd6a 479 else
Wayne Roberts 0:9c052ff8dd6a 480 ppg = 0x1424;
Wayne Roberts 0:9c052ff8dd6a 481
Wayne Roberts 0:9c052ff8dd6a 482 radio.writeReg(REG_ADDR_LORA_SYNC, ppg, 2);
Wayne Roberts 0:9c052ff8dd6a 483 }
Wayne Roberts 0:9c052ff8dd6a 484
Wayne Roberts 0:9c052ff8dd6a 485 uint32_t Radio::lora_toa_us( uint8_t pktLen )
Wayne Roberts 0:9c052ff8dd6a 486 {
Wayne Roberts 0:9c052ff8dd6a 487 double bwKHz;
Wayne Roberts 0:9c052ff8dd6a 488 unsigned preambleLen;
Wayne Roberts 0:9c052ff8dd6a 489 ModulationParams_t mp;
Wayne Roberts 0:9c052ff8dd6a 490
Wayne Roberts 0:9c052ff8dd6a 491 {
Wayne Roberts 0:9c052ff8dd6a 492 loraConfig1_t conf1;
Wayne Roberts 0:9c052ff8dd6a 493 conf1.octet = radio.readReg(REG_ADDR_LORA_CONFIG1, 1);
Wayne Roberts 0:9c052ff8dd6a 494 mp.lora.LowDatarateOptimize = conf1.bits.ppm_offset;
Wayne Roberts 0:9c052ff8dd6a 495 pp.lora.HeaderType = conf1.bits.implicit_header;
Wayne Roberts 0:9c052ff8dd6a 496 pp.lora.InvertIQ = conf1.bits.rx_invert_iq;
Wayne Roberts 0:9c052ff8dd6a 497 mp.lora.codingRate = conf1.bits.tx_coding_rate;
Wayne Roberts 0:9c052ff8dd6a 498 }
Wayne Roberts 0:9c052ff8dd6a 499
Wayne Roberts 0:9c052ff8dd6a 500 {
Wayne Roberts 0:9c052ff8dd6a 501 loraConfig2_t conf2;
Wayne Roberts 0:9c052ff8dd6a 502 conf2.octet = radio.readReg(REG_ADDR_LORA_CONFIG2, 1);
Wayne Roberts 0:9c052ff8dd6a 503 pp.lora.CRCType = conf2.bits.tx_payload_crc16_en;
Wayne Roberts 0:9c052ff8dd6a 504 }
Wayne Roberts 0:9c052ff8dd6a 505
Wayne Roberts 0:9c052ff8dd6a 506
Wayne Roberts 0:9c052ff8dd6a 507 {
Wayne Roberts 0:9c052ff8dd6a 508 uint32_t val;
Wayne Roberts 0:9c052ff8dd6a 509 val = radio.readReg(REG_ADDR_LORA_PREAMBLE_SYMBNB, 2);
Wayne Roberts 0:9c052ff8dd6a 510 pp.lora.PreambleLengthHi = val >> 8;
Wayne Roberts 0:9c052ff8dd6a 511 pp.lora.PreambleLengthLo = val;
Wayne Roberts 0:9c052ff8dd6a 512 }
Wayne Roberts 0:9c052ff8dd6a 513
Wayne Roberts 0:9c052ff8dd6a 514 preambleLen = (pp.lora.PreambleLengthHi << 8) + pp.lora.PreambleLengthLo;
Wayne Roberts 0:9c052ff8dd6a 515
Wayne Roberts 0:9c052ff8dd6a 516 {
Wayne Roberts 0:9c052ff8dd6a 517 loraConfig0_t conf0;
Wayne Roberts 0:9c052ff8dd6a 518 conf0.octet = radio.readReg(REG_ADDR_LORA_CONFIG0, 1);
Wayne Roberts 0:9c052ff8dd6a 519 mp.lora.spreadingFactor = conf0.bits.modem_sf;
Wayne Roberts 0:9c052ff8dd6a 520 mp.lora.bandwidth = conf0.bits.modem_bw;
Wayne Roberts 0:9c052ff8dd6a 521 }
Wayne Roberts 0:9c052ff8dd6a 522
Wayne Roberts 0:9c052ff8dd6a 523 switch (mp.lora.bandwidth) {
Wayne Roberts 0:9c052ff8dd6a 524 case LORA_BW_7: bwKHz = 7.81; break;
Wayne Roberts 0:9c052ff8dd6a 525 case LORA_BW_10: bwKHz = 10.42; break;
Wayne Roberts 0:9c052ff8dd6a 526 case LORA_BW_15: bwKHz = 15.625; break;
Wayne Roberts 0:9c052ff8dd6a 527 case LORA_BW_20: bwKHz = 20.83; break;
Wayne Roberts 0:9c052ff8dd6a 528 case LORA_BW_31: bwKHz = 31.25; break;
Wayne Roberts 0:9c052ff8dd6a 529 case LORA_BW_41: bwKHz = 41.67; break;
Wayne Roberts 0:9c052ff8dd6a 530 case LORA_BW_62: bwKHz = 62.5; break;
Wayne Roberts 0:9c052ff8dd6a 531 case LORA_BW_125: bwKHz = 125; break;
Wayne Roberts 0:9c052ff8dd6a 532 case LORA_BW_250: bwKHz = 250; break;
Wayne Roberts 0:9c052ff8dd6a 533 case LORA_BW_500: bwKHz = 500; break;
Wayne Roberts 0:9c052ff8dd6a 534 default: bwKHz = 0; break;
Wayne Roberts 0:9c052ff8dd6a 535 }
Wayne Roberts 0:9c052ff8dd6a 536
Wayne Roberts 0:9c052ff8dd6a 537 // Symbol rate : time for one symbol (secs)
Wayne Roberts 0:9c052ff8dd6a 538 double rs = bwKHz / ( 1 << mp.lora.spreadingFactor );
Wayne Roberts 0:9c052ff8dd6a 539 double ts = 1 / rs;
Wayne Roberts 0:9c052ff8dd6a 540 // time of preamble
Wayne Roberts 0:9c052ff8dd6a 541 double tPreamble = ( preambleLen + 4.25 ) * ts;
Wayne Roberts 0:9c052ff8dd6a 542 // Symbol length of payload and time
Wayne Roberts 0:9c052ff8dd6a 543
Wayne Roberts 0:9c052ff8dd6a 544 double tmp = ceil( ( 8 * pktLen - 4 * mp.lora.spreadingFactor +
Wayne Roberts 0:9c052ff8dd6a 545 28 + 16 * pp.lora.CRCType -
Wayne Roberts 0:9c052ff8dd6a 546 ( pp.lora.HeaderType ? 20 : 0 ) ) /
Wayne Roberts 0:9c052ff8dd6a 547 ( double )( 4 * ( mp.lora.spreadingFactor -
Wayne Roberts 0:9c052ff8dd6a 548 ( ( mp.lora.LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) *
Wayne Roberts 0:9c052ff8dd6a 549 ( mp.lora.codingRate + 4 );
Wayne Roberts 0:9c052ff8dd6a 550 double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 );
Wayne Roberts 0:9c052ff8dd6a 551 double tPayload = nPayload * ts;
Wayne Roberts 0:9c052ff8dd6a 552 // Time on air
Wayne Roberts 0:9c052ff8dd6a 553 double tOnAir = tPreamble + tPayload;
Wayne Roberts 0:9c052ff8dd6a 554 // return microseconds
Wayne Roberts 0:9c052ff8dd6a 555 return floor( tOnAir * 1000 + 0.999 );
Wayne Roberts 0:9c052ff8dd6a 556 }
Wayne Roberts 0:9c052ff8dd6a 557
Wayne Roberts 0:9c052ff8dd6a 558 #if 0
Wayne Roberts 0:9c052ff8dd6a 559 void Radio::PrintStatus()
Wayne Roberts 0:9c052ff8dd6a 560 {
Wayne Roberts 0:9c052ff8dd6a 561 /* uint8_t buf[4];
Wayne Roberts 0:9c052ff8dd6a 562 status_t status;
Wayne Roberts 0:9c052ff8dd6a 563 IrqFlags_t irqFlags;
Wayne Roberts 0:9c052ff8dd6a 564 radio.xfer(OPCODE_GET_IRQ_STATUS, 0, 3, buf);
Wayne Roberts 0:9c052ff8dd6a 565 irqFlags.word = buf[1] << 8;
Wayne Roberts 0:9c052ff8dd6a 566 irqFlags.word |= buf[2];
Wayne Roberts 0:9c052ff8dd6a 567
Wayne Roberts 0:9c052ff8dd6a 568 printf("dio1:%u irqFlags:%04x\r\n", radio.getDIO1(), irqFlags.word);
Wayne Roberts 0:9c052ff8dd6a 569 radio.xfer(OPCODE_GET_STATUS, 0, 1, &status.octet);
Wayne Roberts 0:9c052ff8dd6a 570 radio.PrintChipStatus(status);*/
Wayne Roberts 0:9c052ff8dd6a 571 {
Wayne Roberts 0:9c052ff8dd6a 572 loraConfig1_t conf1;
Wayne Roberts 0:9c052ff8dd6a 573 conf1.octet = radio.readReg(REG_ADDR_LORA_CONFIG1, 1);
Wayne Roberts 0:9c052ff8dd6a 574 printf("ldro%u %s %s cr%u\r\n",
Wayne Roberts 0:9c052ff8dd6a 575 conf1.bits.ppm_offset,
Wayne Roberts 0:9c052ff8dd6a 576 conf1.bits.implicit_header ? "fixed" : "var",
Wayne Roberts 0:9c052ff8dd6a 577 conf1.bits.rx_invert_iq ? "inv" : "std",
Wayne Roberts 0:9c052ff8dd6a 578 conf1.bits.tx_coding_rate
Wayne Roberts 0:9c052ff8dd6a 579 );
Wayne Roberts 0:9c052ff8dd6a 580 }
Wayne Roberts 0:9c052ff8dd6a 581
Wayne Roberts 0:9c052ff8dd6a 582 {
Wayne Roberts 0:9c052ff8dd6a 583 loraConfig2_t conf2;
Wayne Roberts 0:9c052ff8dd6a 584 conf2.octet = radio.readReg(REG_ADDR_LORA_CONFIG2, 1);
Wayne Roberts 0:9c052ff8dd6a 585 printf("crc16en:%u ", conf2.bits.tx_payload_crc16_en);
Wayne Roberts 0:9c052ff8dd6a 586 }
Wayne Roberts 0:9c052ff8dd6a 587
Wayne Roberts 0:9c052ff8dd6a 588
Wayne Roberts 0:9c052ff8dd6a 589 {
Wayne Roberts 0:9c052ff8dd6a 590 uint32_t val;
Wayne Roberts 0:9c052ff8dd6a 591 val = radio.readReg(REG_ADDR_LORA_PREAMBLE_SYMBNB, 2);
Wayne Roberts 0:9c052ff8dd6a 592 printf("prelen %lu ", val);
Wayne Roberts 0:9c052ff8dd6a 593 }
Wayne Roberts 0:9c052ff8dd6a 594
Wayne Roberts 0:9c052ff8dd6a 595 {
Wayne Roberts 0:9c052ff8dd6a 596 loraConfig0_t conf0;
Wayne Roberts 0:9c052ff8dd6a 597 conf0.octet = radio.readReg(REG_ADDR_LORA_CONFIG0, 1);
Wayne Roberts 0:9c052ff8dd6a 598 printf("sf%u, bw%u ", conf0.bits.modem_sf, conf0.bits.modem_bw);
Wayne Roberts 0:9c052ff8dd6a 599 }
Wayne Roberts 0:9c052ff8dd6a 600
Wayne Roberts 0:9c052ff8dd6a 601 printf("%.3fMHz\r\n", radio.getMHz());
Wayne Roberts 0:9c052ff8dd6a 602 }
Wayne Roberts 0:9c052ff8dd6a 603 #endif /* if 0 */
Wayne Roberts 0:9c052ff8dd6a 604
Wayne Roberts 0:9c052ff8dd6a 605 #endif /* ..SX126x_H */