wayne roberts / sx12xx_hal

Hardware Abstraction Layer, permitting any LoRa application to use any LoRa radio chip

Dependents:   alarm_slave alarm_master lora_p2p lorawan1v1 ... more

radio chip selection

Radio chip driver is not included, allowing choice of radio device.
If you're using SX1272 or SX1276, then import sx127x driver into your program.
if you're using SX1261 or SX1262, then import sx126x driver into your program.
if you're using SX1280, then import sx1280 driver into your program.
if you're using LR1110, then import LR1110 driver into your program.
If you're using NAmote72 or Murata discovery, then you must import only sx127x driver.
If you're using Type1SJ select target DISCO_L072CZ_LRWAN1 and import sx126x driver into your program.

Pin assigned to arduino LoRa radio shield form-factor

radio_sx126x.cpp@5:ab124d3842a8, 2018-11-25 (annotated)

Committer:
Wayne Roberts
Date:
Sun Nov 25 17:12:03 2018 -0800
Revision:
5:ab124d3842a8
Parent:
4:57080d572494
Child:
7:ba81f66e56d1
add PA disable option

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 0:9c052ff8dd6a 315 int Radio::Send(uint8_t size, timestamp_t maxListenTime, timestamp_t channelFreeTime, int rssiThresh)
Wayne Roberts 0:9c052ff8dd6a 316 {
Wayne Roberts 0:9c052ff8dd6a 317 uint8_t buf[8];
Wayne Roberts 0:9c052ff8dd6a 318 uint8_t pktType = radio.getPacketType();
Wayne Roberts 0:9c052ff8dd6a 319
Wayne Roberts 0:9c052ff8dd6a 320 buf[0] = 0; // TX base address
Wayne Roberts 0:9c052ff8dd6a 321 buf[1] = 0; // RX base address
Wayne Roberts 0:9c052ff8dd6a 322 radio.xfer(OPCODE_SET_BUFFER_BASE_ADDR, 2, 0, buf);
Wayne Roberts 0:9c052ff8dd6a 323
Wayne Roberts 0:9c052ff8dd6a 324 if (pktType == PACKET_TYPE_GFSK) {
Wayne Roberts 0:9c052ff8dd6a 325 pp.gfsk.PayloadLength = size;
Wayne Roberts 0:9c052ff8dd6a 326 radio.xfer(OPCODE_SET_PACKET_PARAMS, 8, 0, pp.buf);
Wayne Roberts 0:9c052ff8dd6a 327 } else if (pktType == PACKET_TYPE_LORA) {
Wayne Roberts 0:9c052ff8dd6a 328 pp.lora.PayloadLength = size;
Wayne Roberts 0:9c052ff8dd6a 329 radio.xfer(OPCODE_SET_PACKET_PARAMS, 6, 0, pp.buf);
Wayne Roberts 0:9c052ff8dd6a 330 }
Wayne Roberts 0:9c052ff8dd6a 331
Wayne Roberts 0:9c052ff8dd6a 332 {
Wayne Roberts 0:9c052ff8dd6a 333 IrqFlags_t irqEnable;
Wayne Roberts 0:9c052ff8dd6a 334 irqEnable.word = 0;
Wayne Roberts 0:9c052ff8dd6a 335 irqEnable.bits.TxDone = 1;
Wayne Roberts 0:9c052ff8dd6a 336 irqEnable.bits.Timeout = 1;
Wayne Roberts 0:9c052ff8dd6a 337
Wayne Roberts 0:9c052ff8dd6a 338 buf[0] = irqEnable.word >> 8; // enable bits
Wayne Roberts 0:9c052ff8dd6a 339 buf[1] = irqEnable.word; // enable bits
Wayne Roberts 0:9c052ff8dd6a 340 buf[2] = irqEnable.word >> 8; // dio1
Wayne Roberts 0:9c052ff8dd6a 341 buf[3] = irqEnable.word; // dio1
Wayne Roberts 0:9c052ff8dd6a 342 buf[4] = 0; // dio2
Wayne Roberts 0:9c052ff8dd6a 343 buf[5] = 0; // dio2
Wayne Roberts 0:9c052ff8dd6a 344 buf[6] = 0; // dio3
Wayne Roberts 0:9c052ff8dd6a 345 buf[7] = 0; // dio3
Wayne Roberts 0:9c052ff8dd6a 346 radio.xfer(OPCODE_SET_DIO_IRQ_PARAMS, 8, 0, buf);
Wayne Roberts 0:9c052ff8dd6a 347 }
Wayne Roberts 0:9c052ff8dd6a 348
Wayne Roberts 0:9c052ff8dd6a 349 antswPower = 1;
Wayne Roberts 0:9c052ff8dd6a 350
Wayne Roberts 0:9c052ff8dd6a 351 if (maxListenTime > 0) {
Wayne Roberts 0:9c052ff8dd6a 352 int rssi;
Wayne Roberts 0:9c052ff8dd6a 353 us_timestamp_t startAt, chFreeAt, now;
Wayne Roberts 0:9c052ff8dd6a 354 uint8_t symbs = 0;
Wayne Roberts 0:9c052ff8dd6a 355
Wayne Roberts 0:9c052ff8dd6a 356 radio.xfer(OPCODE_SET_LORA_SYMBOL_TIMEOUT, 1, 0, &symbs);
Wayne Roberts 0:9c052ff8dd6a 357
Wayne Roberts 0:9c052ff8dd6a 358 radio.start_rx(RX_TIMEOUT_CONTINUOUS);
Wayne Roberts 0:9c052ff8dd6a 359 startAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 360 Lstart:
Wayne Roberts 0:9c052ff8dd6a 361 do {
Wayne Roberts 0:9c052ff8dd6a 362 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 363 if ((now - startAt) > maxListenTime) {
Wayne Roberts 0:9c052ff8dd6a 364 return -1;
Wayne Roberts 0:9c052ff8dd6a 365 }
Wayne Roberts 0:9c052ff8dd6a 366 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 367 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 368 } while (rssi > rssiThresh);
Wayne Roberts 0:9c052ff8dd6a 369 chFreeAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 370 do {
Wayne Roberts 0:9c052ff8dd6a 371 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 372 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 373 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 374 if (rssi > rssiThresh) {
Wayne Roberts 0:9c052ff8dd6a 375 goto Lstart;
Wayne Roberts 0:9c052ff8dd6a 376 }
Wayne Roberts 0:9c052ff8dd6a 377 } while ((now - chFreeAt) < channelFreeTime);
Wayne Roberts 0:9c052ff8dd6a 378 }
Wayne Roberts 0:9c052ff8dd6a 379
Wayne Roberts 5:ab124d3842a8 380 if (paOff) {
Wayne Roberts 5:ab124d3842a8 381 unsigned v = radio.readReg(REG_ADDR_ANACTRL16, 1);
Wayne Roberts 5:ab124d3842a8 382 if ((v & 0x10) == 0) {
Wayne Roberts 5:ab124d3842a8 383 v |= 0x10;
Wayne Roberts 5:ab124d3842a8 384 radio.writeReg(REG_ADDR_ANACTRL16, v, 1);
Wayne Roberts 5:ab124d3842a8 385 }
Wayne Roberts 5:ab124d3842a8 386 }
Wayne Roberts 0:9c052ff8dd6a 387 radio.start_tx(size);
Wayne Roberts 0:9c052ff8dd6a 388
Wayne Roberts 0:9c052ff8dd6a 389 return 0;
Wayne Roberts 0:9c052ff8dd6a 390 } // ..Send()
Wayne Roberts 0:9c052ff8dd6a 391
Wayne Roberts 1:e79b0a55135f 392 void Radio::SetRxMaxPayloadLength(uint8_t max)
Wayne Roberts 0:9c052ff8dd6a 393 {
Wayne Roberts 1:e79b0a55135f 394 uint8_t pktType = radio.getPacketType();
Wayne Roberts 0:9c052ff8dd6a 395
Wayne Roberts 1:e79b0a55135f 396 if (pktType == PACKET_TYPE_GFSK) {
Wayne Roberts 0:9c052ff8dd6a 397 pp.gfsk.PayloadLength = max;
Wayne Roberts 1:e79b0a55135f 398 radio.xfer(OPCODE_SET_PACKET_PARAMS, 8, 0, pp.buf);
Wayne Roberts 1:e79b0a55135f 399 } else if (pktType == PACKET_TYPE_LORA) {
Wayne Roberts 0:9c052ff8dd6a 400 pp.lora.PayloadLength = max;
Wayne Roberts 1:e79b0a55135f 401 radio.xfer(OPCODE_SET_PACKET_PARAMS, 6, 0, pp.buf);
Wayne Roberts 0:9c052ff8dd6a 402 }
Wayne Roberts 0:9c052ff8dd6a 403 }
Wayne Roberts 0:9c052ff8dd6a 404
Wayne Roberts 0:9c052ff8dd6a 405 void Radio::dio1_top_half()
Wayne Roberts 0:9c052ff8dd6a 406 {
Wayne Roberts 0:9c052ff8dd6a 407 irqAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 408
Wayne Roberts 0:9c052ff8dd6a 409 if (radio.chipMode == CHIPMODE_TX) {
Wayne Roberts 0:9c052ff8dd6a 410 /* TxDone handling requires low latency */
Wayne Roberts 0:9c052ff8dd6a 411 if (RadioEvents->TxDone_topHalf) {
Wayne Roberts 0:9c052ff8dd6a 412 RadioEvents->TxDone_topHalf();
Wayne Roberts 0:9c052ff8dd6a 413 }
Wayne Roberts 0:9c052ff8dd6a 414 } else {
Wayne Roberts 3:122af639cf0b 415 #ifdef RX_INDICATION
Wayne Roberts 3:122af639cf0b 416 RX_INDICATION = 0;
Wayne Roberts 3:122af639cf0b 417 #endif
Wayne Roberts 0:9c052ff8dd6a 418 }
Wayne Roberts 0:9c052ff8dd6a 419 }
Wayne Roberts 0:9c052ff8dd6a 420
Wayne Roberts 0:9c052ff8dd6a 421 void Radio::timeout_callback(bool tx)
Wayne Roberts 0:9c052ff8dd6a 422 {
Wayne Roberts 0:9c052ff8dd6a 423 if (!tx) {
Wayne Roberts 0:9c052ff8dd6a 424 if (RadioEvents->RxTimeout)
Wayne Roberts 0:9c052ff8dd6a 425 RadioEvents->RxTimeout();
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 } // else TODO tx timeout
Wayne Roberts 0:9c052ff8dd6a 430 }
Wayne Roberts 0:9c052ff8dd6a 431
Wayne Roberts 0:9c052ff8dd6a 432 void Radio::rx_done(uint8_t size, float rssi, float snr)
Wayne Roberts 0:9c052ff8dd6a 433 {
Wayne Roberts 0:9c052ff8dd6a 434 RadioEvents->RxDone(size, rssi, snr);
Wayne Roberts 0:9c052ff8dd6a 435 }
Wayne Roberts 0:9c052ff8dd6a 436
Wayne Roberts 0:9c052ff8dd6a 437 void Radio::txDoneBottom()
Wayne Roberts 0:9c052ff8dd6a 438 {
Wayne Roberts 0:9c052ff8dd6a 439 if (RadioEvents->TxDone_botHalf)
Wayne Roberts 0:9c052ff8dd6a 440 RadioEvents->TxDone_botHalf();
Wayne Roberts 0:9c052ff8dd6a 441 }
Wayne Roberts 0:9c052ff8dd6a 442
Wayne Roberts 0:9c052ff8dd6a 443 void Radio::Init(const RadioEvents_t* e)
Wayne Roberts 0:9c052ff8dd6a 444 {
Wayne Roberts 0:9c052ff8dd6a 445 radio.txDone = txDoneBottom;
Wayne Roberts 0:9c052ff8dd6a 446 radio.rxDone = rx_done;
Wayne Roberts 0:9c052ff8dd6a 447 radio.timeout = timeout_callback;
Wayne Roberts 0:9c052ff8dd6a 448 radio.chipModeChange = chipModeChange;
Wayne Roberts 0:9c052ff8dd6a 449 radio.dio1_topHalf = dio1_top_half;
Wayne Roberts 0:9c052ff8dd6a 450
Wayne Roberts 0:9c052ff8dd6a 451 RadioEvents = e;
Wayne Roberts 0:9c052ff8dd6a 452 lpt.start();
Wayne Roberts 0:9c052ff8dd6a 453
Wayne Roberts 0:9c052ff8dd6a 454 radio.SetDIO2AsRfSwitchCtrl(1);
Wayne Roberts 0:9c052ff8dd6a 455 }
Wayne Roberts 0:9c052ff8dd6a 456
Wayne Roberts 0:9c052ff8dd6a 457 void Radio::service()
Wayne Roberts 0:9c052ff8dd6a 458 {
Wayne Roberts 0:9c052ff8dd6a 459 radio.service();
Wayne Roberts 0:9c052ff8dd6a 460 }
Wayne Roberts 0:9c052ff8dd6a 461
Wayne Roberts 0:9c052ff8dd6a 462 void Radio::SetPublicNetwork(bool en)
Wayne Roberts 0:9c052ff8dd6a 463 {
Wayne Roberts 0:9c052ff8dd6a 464 uint16_t ppg;
Wayne Roberts 0:9c052ff8dd6a 465
Wayne Roberts 0:9c052ff8dd6a 466 if (en)
Wayne Roberts 0:9c052ff8dd6a 467 ppg = 0x3444;
Wayne Roberts 0:9c052ff8dd6a 468 else
Wayne Roberts 0:9c052ff8dd6a 469 ppg = 0x1424;
Wayne Roberts 0:9c052ff8dd6a 470
Wayne Roberts 0:9c052ff8dd6a 471 radio.writeReg(REG_ADDR_LORA_SYNC, ppg, 2);
Wayne Roberts 0:9c052ff8dd6a 472 }
Wayne Roberts 0:9c052ff8dd6a 473
Wayne Roberts 0:9c052ff8dd6a 474 uint32_t Radio::lora_toa_us( uint8_t pktLen )
Wayne Roberts 0:9c052ff8dd6a 475 {
Wayne Roberts 0:9c052ff8dd6a 476 double bwKHz;
Wayne Roberts 0:9c052ff8dd6a 477 unsigned preambleLen;
Wayne Roberts 0:9c052ff8dd6a 478 ModulationParams_t mp;
Wayne Roberts 0:9c052ff8dd6a 479
Wayne Roberts 0:9c052ff8dd6a 480 {
Wayne Roberts 0:9c052ff8dd6a 481 loraConfig1_t conf1;
Wayne Roberts 0:9c052ff8dd6a 482 conf1.octet = radio.readReg(REG_ADDR_LORA_CONFIG1, 1);
Wayne Roberts 0:9c052ff8dd6a 483 mp.lora.LowDatarateOptimize = conf1.bits.ppm_offset;
Wayne Roberts 0:9c052ff8dd6a 484 pp.lora.HeaderType = conf1.bits.implicit_header;
Wayne Roberts 0:9c052ff8dd6a 485 pp.lora.InvertIQ = conf1.bits.rx_invert_iq;
Wayne Roberts 0:9c052ff8dd6a 486 mp.lora.codingRate = conf1.bits.tx_coding_rate;
Wayne Roberts 0:9c052ff8dd6a 487 }
Wayne Roberts 0:9c052ff8dd6a 488
Wayne Roberts 0:9c052ff8dd6a 489 {
Wayne Roberts 0:9c052ff8dd6a 490 loraConfig2_t conf2;
Wayne Roberts 0:9c052ff8dd6a 491 conf2.octet = radio.readReg(REG_ADDR_LORA_CONFIG2, 1);
Wayne Roberts 0:9c052ff8dd6a 492 pp.lora.CRCType = conf2.bits.tx_payload_crc16_en;
Wayne Roberts 0:9c052ff8dd6a 493 }
Wayne Roberts 0:9c052ff8dd6a 494
Wayne Roberts 0:9c052ff8dd6a 495
Wayne Roberts 0:9c052ff8dd6a 496 {
Wayne Roberts 0:9c052ff8dd6a 497 uint32_t val;
Wayne Roberts 0:9c052ff8dd6a 498 val = radio.readReg(REG_ADDR_LORA_PREAMBLE_SYMBNB, 2);
Wayne Roberts 0:9c052ff8dd6a 499 pp.lora.PreambleLengthHi = val >> 8;
Wayne Roberts 0:9c052ff8dd6a 500 pp.lora.PreambleLengthLo = val;
Wayne Roberts 0:9c052ff8dd6a 501 }
Wayne Roberts 0:9c052ff8dd6a 502
Wayne Roberts 0:9c052ff8dd6a 503 preambleLen = (pp.lora.PreambleLengthHi << 8) + pp.lora.PreambleLengthLo;
Wayne Roberts 0:9c052ff8dd6a 504
Wayne Roberts 0:9c052ff8dd6a 505 {
Wayne Roberts 0:9c052ff8dd6a 506 loraConfig0_t conf0;
Wayne Roberts 0:9c052ff8dd6a 507 conf0.octet = radio.readReg(REG_ADDR_LORA_CONFIG0, 1);
Wayne Roberts 0:9c052ff8dd6a 508 mp.lora.spreadingFactor = conf0.bits.modem_sf;
Wayne Roberts 0:9c052ff8dd6a 509 mp.lora.bandwidth = conf0.bits.modem_bw;
Wayne Roberts 0:9c052ff8dd6a 510 }
Wayne Roberts 0:9c052ff8dd6a 511
Wayne Roberts 0:9c052ff8dd6a 512 switch (mp.lora.bandwidth) {
Wayne Roberts 0:9c052ff8dd6a 513 case LORA_BW_7: bwKHz = 7.81; break;
Wayne Roberts 0:9c052ff8dd6a 514 case LORA_BW_10: bwKHz = 10.42; break;
Wayne Roberts 0:9c052ff8dd6a 515 case LORA_BW_15: bwKHz = 15.625; break;
Wayne Roberts 0:9c052ff8dd6a 516 case LORA_BW_20: bwKHz = 20.83; break;
Wayne Roberts 0:9c052ff8dd6a 517 case LORA_BW_31: bwKHz = 31.25; break;
Wayne Roberts 0:9c052ff8dd6a 518 case LORA_BW_41: bwKHz = 41.67; break;
Wayne Roberts 0:9c052ff8dd6a 519 case LORA_BW_62: bwKHz = 62.5; break;
Wayne Roberts 0:9c052ff8dd6a 520 case LORA_BW_125: bwKHz = 125; break;
Wayne Roberts 0:9c052ff8dd6a 521 case LORA_BW_250: bwKHz = 250; break;
Wayne Roberts 0:9c052ff8dd6a 522 case LORA_BW_500: bwKHz = 500; break;
Wayne Roberts 0:9c052ff8dd6a 523 default: bwKHz = 0; break;
Wayne Roberts 0:9c052ff8dd6a 524 }
Wayne Roberts 0:9c052ff8dd6a 525
Wayne Roberts 0:9c052ff8dd6a 526 // Symbol rate : time for one symbol (secs)
Wayne Roberts 0:9c052ff8dd6a 527 double rs = bwKHz / ( 1 << mp.lora.spreadingFactor );
Wayne Roberts 0:9c052ff8dd6a 528 double ts = 1 / rs;
Wayne Roberts 0:9c052ff8dd6a 529 // time of preamble
Wayne Roberts 0:9c052ff8dd6a 530 double tPreamble = ( preambleLen + 4.25 ) * ts;
Wayne Roberts 0:9c052ff8dd6a 531 // Symbol length of payload and time
Wayne Roberts 0:9c052ff8dd6a 532
Wayne Roberts 0:9c052ff8dd6a 533 double tmp = ceil( ( 8 * pktLen - 4 * mp.lora.spreadingFactor +
Wayne Roberts 0:9c052ff8dd6a 534 28 + 16 * pp.lora.CRCType -
Wayne Roberts 0:9c052ff8dd6a 535 ( pp.lora.HeaderType ? 20 : 0 ) ) /
Wayne Roberts 0:9c052ff8dd6a 536 ( double )( 4 * ( mp.lora.spreadingFactor -
Wayne Roberts 0:9c052ff8dd6a 537 ( ( mp.lora.LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) *
Wayne Roberts 0:9c052ff8dd6a 538 ( mp.lora.codingRate + 4 );
Wayne Roberts 0:9c052ff8dd6a 539 double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 );
Wayne Roberts 0:9c052ff8dd6a 540 double tPayload = nPayload * ts;
Wayne Roberts 0:9c052ff8dd6a 541 // Time on air
Wayne Roberts 0:9c052ff8dd6a 542 double tOnAir = tPreamble + tPayload;
Wayne Roberts 0:9c052ff8dd6a 543 // return microseconds
Wayne Roberts 0:9c052ff8dd6a 544 return floor( tOnAir * 1000 + 0.999 );
Wayne Roberts 0:9c052ff8dd6a 545 }
Wayne Roberts 0:9c052ff8dd6a 546
Wayne Roberts 0:9c052ff8dd6a 547 #if 0
Wayne Roberts 0:9c052ff8dd6a 548 void Radio::PrintStatus()
Wayne Roberts 0:9c052ff8dd6a 549 {
Wayne Roberts 0:9c052ff8dd6a 550 /* uint8_t buf[4];
Wayne Roberts 0:9c052ff8dd6a 551 status_t status;
Wayne Roberts 0:9c052ff8dd6a 552 IrqFlags_t irqFlags;
Wayne Roberts 0:9c052ff8dd6a 553 radio.xfer(OPCODE_GET_IRQ_STATUS, 0, 3, buf);
Wayne Roberts 0:9c052ff8dd6a 554 irqFlags.word = buf[1] << 8;
Wayne Roberts 0:9c052ff8dd6a 555 irqFlags.word |= buf[2];
Wayne Roberts 0:9c052ff8dd6a 556
Wayne Roberts 0:9c052ff8dd6a 557 printf("dio1:%u irqFlags:%04x\r\n", radio.getDIO1(), irqFlags.word);
Wayne Roberts 0:9c052ff8dd6a 558 radio.xfer(OPCODE_GET_STATUS, 0, 1, &status.octet);
Wayne Roberts 0:9c052ff8dd6a 559 radio.PrintChipStatus(status);*/
Wayne Roberts 0:9c052ff8dd6a 560 {
Wayne Roberts 0:9c052ff8dd6a 561 loraConfig1_t conf1;
Wayne Roberts 0:9c052ff8dd6a 562 conf1.octet = radio.readReg(REG_ADDR_LORA_CONFIG1, 1);
Wayne Roberts 0:9c052ff8dd6a 563 printf("ldro%u %s %s cr%u\r\n",
Wayne Roberts 0:9c052ff8dd6a 564 conf1.bits.ppm_offset,
Wayne Roberts 0:9c052ff8dd6a 565 conf1.bits.implicit_header ? "fixed" : "var",
Wayne Roberts 0:9c052ff8dd6a 566 conf1.bits.rx_invert_iq ? "inv" : "std",
Wayne Roberts 0:9c052ff8dd6a 567 conf1.bits.tx_coding_rate
Wayne Roberts 0:9c052ff8dd6a 568 );
Wayne Roberts 0:9c052ff8dd6a 569 }
Wayne Roberts 0:9c052ff8dd6a 570
Wayne Roberts 0:9c052ff8dd6a 571 {
Wayne Roberts 0:9c052ff8dd6a 572 loraConfig2_t conf2;
Wayne Roberts 0:9c052ff8dd6a 573 conf2.octet = radio.readReg(REG_ADDR_LORA_CONFIG2, 1);
Wayne Roberts 0:9c052ff8dd6a 574 printf("crc16en:%u ", conf2.bits.tx_payload_crc16_en);
Wayne Roberts 0:9c052ff8dd6a 575 }
Wayne Roberts 0:9c052ff8dd6a 576
Wayne Roberts 0:9c052ff8dd6a 577
Wayne Roberts 0:9c052ff8dd6a 578 {
Wayne Roberts 0:9c052ff8dd6a 579 uint32_t val;
Wayne Roberts 0:9c052ff8dd6a 580 val = radio.readReg(REG_ADDR_LORA_PREAMBLE_SYMBNB, 2);
Wayne Roberts 0:9c052ff8dd6a 581 printf("prelen %lu ", val);
Wayne Roberts 0:9c052ff8dd6a 582 }
Wayne Roberts 0:9c052ff8dd6a 583
Wayne Roberts 0:9c052ff8dd6a 584 {
Wayne Roberts 0:9c052ff8dd6a 585 loraConfig0_t conf0;
Wayne Roberts 0:9c052ff8dd6a 586 conf0.octet = radio.readReg(REG_ADDR_LORA_CONFIG0, 1);
Wayne Roberts 0:9c052ff8dd6a 587 printf("sf%u, bw%u ", conf0.bits.modem_sf, conf0.bits.modem_bw);
Wayne Roberts 0:9c052ff8dd6a 588 }
Wayne Roberts 0:9c052ff8dd6a 589
Wayne Roberts 0:9c052ff8dd6a 590 printf("%.3fMHz\r\n", radio.getMHz());
Wayne Roberts 0:9c052ff8dd6a 591 }
Wayne Roberts 0:9c052ff8dd6a 592 #endif /* if 0 */
Wayne Roberts 0:9c052ff8dd6a 593
Wayne Roberts 0:9c052ff8dd6a 594 #endif /* ..SX126x_H */