1
radio_sx126x.cpp@0:9c052ff8dd6a, 2018-07-05 (annotated)
- Committer:
- Wayne Roberts
- Date:
- Thu Jul 05 17:31:54 2018 -0700
- Revision:
- 0:9c052ff8dd6a
- Child:
- 1:e79b0a55135f
initial commit
Who changed what in which revision?
User | Revision | Line number | New 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 | extern RawSerial pc; |
Wayne Roberts |
0:9c052ff8dd6a | 6 | |
Wayne Roberts |
0:9c052ff8dd6a | 7 | LowPowerTimer Radio::lpt; |
Wayne Roberts |
0:9c052ff8dd6a | 8 | volatile us_timestamp_t Radio::irqAt; |
Wayne Roberts |
0:9c052ff8dd6a | 9 | |
Wayne Roberts |
0:9c052ff8dd6a | 10 | #ifdef TARGET_FF_ARDUINO |
Wayne Roberts |
0:9c052ff8dd6a | 11 | SPIu spi(D11, D12, D13); // mosi, miso, sclk |
Wayne Roberts |
0:9c052ff8dd6a | 12 | //spi, nss, busy, dio1 |
Wayne Roberts |
0:9c052ff8dd6a | 13 | SX126x Radio::radio(spi, D7, D3, D5); |
Wayne Roberts |
0:9c052ff8dd6a | 14 | |
Wayne Roberts |
0:9c052ff8dd6a | 15 | DigitalOut antswPower(D8); |
Wayne Roberts |
0:9c052ff8dd6a | 16 | AnalogIn xtalSel(A3); |
Wayne Roberts |
0:9c052ff8dd6a | 17 | |
Wayne Roberts |
0:9c052ff8dd6a | 18 | DigitalIn chipType(A2); |
Wayne Roberts |
0:9c052ff8dd6a | 19 | #define CHIP_TYPE_SX1262 0 |
Wayne Roberts |
0:9c052ff8dd6a | 20 | #define CHIP_TYPE_SX1261 1 |
Wayne Roberts |
0:9c052ff8dd6a | 21 | |
Wayne Roberts |
0:9c052ff8dd6a | 22 | #define PINNAME_NRST A0 |
Wayne Roberts |
0:9c052ff8dd6a | 23 | |
Wayne Roberts |
0:9c052ff8dd6a | 24 | #define LED_ON 1 |
Wayne Roberts |
0:9c052ff8dd6a | 25 | #define LED_OFF 0 |
Wayne Roberts |
0:9c052ff8dd6a | 26 | DigitalOut tx_led(A4); |
Wayne Roberts |
0:9c052ff8dd6a | 27 | DigitalOut rx_led(A5); |
Wayne Roberts |
0:9c052ff8dd6a | 28 | |
Wayne Roberts |
0:9c052ff8dd6a | 29 | void Radio::chipModeChange() |
Wayne Roberts |
0:9c052ff8dd6a | 30 | { |
Wayne Roberts |
0:9c052ff8dd6a | 31 | if (radio.chipMode == CHIPMODE_NONE) { |
Wayne Roberts |
0:9c052ff8dd6a | 32 | tx_led = LED_OFF; |
Wayne Roberts |
0:9c052ff8dd6a | 33 | rx_led = LED_OFF; |
Wayne Roberts |
0:9c052ff8dd6a | 34 | } else if (radio.chipMode == CHIPMODE_TX) { |
Wayne Roberts |
0:9c052ff8dd6a | 35 | tx_led = LED_ON; |
Wayne Roberts |
0:9c052ff8dd6a | 36 | rx_led = LED_OFF; |
Wayne Roberts |
0:9c052ff8dd6a | 37 | } else if (radio.chipMode == CHIPMODE_RX) { |
Wayne Roberts |
0:9c052ff8dd6a | 38 | tx_led = LED_OFF; |
Wayne Roberts |
0:9c052ff8dd6a | 39 | rx_led = LED_ON; |
Wayne Roberts |
0:9c052ff8dd6a | 40 | } |
Wayne Roberts |
0:9c052ff8dd6a | 41 | } |
Wayne Roberts |
0:9c052ff8dd6a | 42 | #endif /* TARGET_FF_ARDUINO */ |
Wayne Roberts |
0:9c052ff8dd6a | 43 | |
Wayne Roberts |
0:9c052ff8dd6a | 44 | const RadioEvents_t* RadioEvents; |
Wayne Roberts |
0:9c052ff8dd6a | 45 | PacketParams_t Radio::pp; |
Wayne Roberts |
0:9c052ff8dd6a | 46 | RadioModems_t Radio::_m_; |
Wayne Roberts |
0:9c052ff8dd6a | 47 | |
Wayne Roberts |
0:9c052ff8dd6a | 48 | #ifdef TARGET_FF_MORPHO |
Wayne Roberts |
0:9c052ff8dd6a | 49 | DigitalOut pc3(PC_3); // debug RX indication, for nucleo boards |
Wayne Roberts |
0:9c052ff8dd6a | 50 | #endif /* TARGET_FF_MORPHO */ |
Wayne Roberts |
0:9c052ff8dd6a | 51 | |
Wayne Roberts |
0:9c052ff8dd6a | 52 | void Radio::Rx(unsigned timeout) |
Wayne Roberts |
0:9c052ff8dd6a | 53 | { |
Wayne Roberts |
0:9c052ff8dd6a | 54 | antswPower = 1; |
Wayne Roberts |
0:9c052ff8dd6a | 55 | |
Wayne Roberts |
0:9c052ff8dd6a | 56 | { |
Wayne Roberts |
0:9c052ff8dd6a | 57 | uint8_t buf[8]; |
Wayne Roberts |
0:9c052ff8dd6a | 58 | IrqFlags_t irqEnable; |
Wayne Roberts |
0:9c052ff8dd6a | 59 | irqEnable.word = 0; |
Wayne Roberts |
0:9c052ff8dd6a | 60 | irqEnable.bits.RxDone = 1; |
Wayne Roberts |
0:9c052ff8dd6a | 61 | irqEnable.bits.Timeout = 1; |
Wayne Roberts |
0:9c052ff8dd6a | 62 | |
Wayne Roberts |
0:9c052ff8dd6a | 63 | buf[0] = irqEnable.word >> 8; // enable bits |
Wayne Roberts |
0:9c052ff8dd6a | 64 | buf[1] = irqEnable.word; // enable bits |
Wayne Roberts |
0:9c052ff8dd6a | 65 | buf[2] = irqEnable.word >> 8; // dio1 |
Wayne Roberts |
0:9c052ff8dd6a | 66 | buf[3] = irqEnable.word; // dio1 |
Wayne Roberts |
0:9c052ff8dd6a | 67 | buf[4] = 0; // dio2 |
Wayne Roberts |
0:9c052ff8dd6a | 68 | buf[5] = 0; // dio2 |
Wayne Roberts |
0:9c052ff8dd6a | 69 | buf[6] = 0; // dio3 |
Wayne Roberts |
0:9c052ff8dd6a | 70 | buf[7] = 0; // dio3 |
Wayne Roberts |
0:9c052ff8dd6a | 71 | radio.xfer(OPCODE_SET_DIO_IRQ_PARAMS, 8, 0, buf); |
Wayne Roberts |
0:9c052ff8dd6a | 72 | } |
Wayne Roberts |
0:9c052ff8dd6a | 73 | |
Wayne Roberts |
0:9c052ff8dd6a | 74 | #ifdef TARGET_FF_MORPHO |
Wayne Roberts |
0:9c052ff8dd6a | 75 | pc3 = 1; |
Wayne Roberts |
0:9c052ff8dd6a | 76 | #endif /* TARGET_FF_MORPHO */ |
Wayne Roberts |
0:9c052ff8dd6a | 77 | if (timeout == 0) |
Wayne Roberts |
0:9c052ff8dd6a | 78 | radio.start_rx(RX_TIMEOUT_CONTINUOUS); |
Wayne Roberts |
0:9c052ff8dd6a | 79 | else |
Wayne Roberts |
0:9c052ff8dd6a | 80 | radio.start_rx(timeout * RC_TICKS_PER_US); |
Wayne Roberts |
0:9c052ff8dd6a | 81 | |
Wayne Roberts |
0:9c052ff8dd6a | 82 | //pc.printf("start_rx %u busy%u\r\n", timeout, busy.read()); |
Wayne Roberts |
0:9c052ff8dd6a | 83 | } |
Wayne Roberts |
0:9c052ff8dd6a | 84 | |
Wayne Roberts |
0:9c052ff8dd6a | 85 | void Radio::Standby() |
Wayne Roberts |
0:9c052ff8dd6a | 86 | { |
Wayne Roberts |
0:9c052ff8dd6a | 87 | radio.setStandby(STBY_RC); // STBY_XOSC |
Wayne Roberts |
0:9c052ff8dd6a | 88 | |
Wayne Roberts |
0:9c052ff8dd6a | 89 | antswPower = 0; |
Wayne Roberts |
0:9c052ff8dd6a | 90 | } |
Wayne Roberts |
0:9c052ff8dd6a | 91 | |
Wayne Roberts |
0:9c052ff8dd6a | 92 | void Radio::Sleep() |
Wayne Roberts |
0:9c052ff8dd6a | 93 | { |
Wayne Roberts |
0:9c052ff8dd6a | 94 | radio.setSleep(true, false); |
Wayne Roberts |
0:9c052ff8dd6a | 95 | |
Wayne Roberts |
0:9c052ff8dd6a | 96 | antswPower = 0; |
Wayne Roberts |
0:9c052ff8dd6a | 97 | } |
Wayne Roberts |
0:9c052ff8dd6a | 98 | |
Wayne Roberts |
0:9c052ff8dd6a | 99 | void Radio::set_tx_dbm(int8_t dbm) |
Wayne Roberts |
0:9c052ff8dd6a | 100 | { |
Wayne Roberts |
0:9c052ff8dd6a | 101 | radio.set_tx_dbm(chipType == CHIP_TYPE_SX1262, dbm); |
Wayne Roberts |
0:9c052ff8dd6a | 102 | } |
Wayne Roberts |
0:9c052ff8dd6a | 103 | |
Wayne Roberts |
0:9c052ff8dd6a | 104 | void Radio::SetTxContinuousWave(unsigned hz, int8_t dbm, unsigned timeout_us) |
Wayne Roberts |
0:9c052ff8dd6a | 105 | { |
Wayne Roberts |
0:9c052ff8dd6a | 106 | SetChannel(hz); |
Wayne Roberts |
0:9c052ff8dd6a | 107 | radio.set_tx_dbm(chipType == CHIP_TYPE_SX1262, dbm); |
Wayne Roberts |
0:9c052ff8dd6a | 108 | radio.xfer(OPCODE_SET_TX_CONTINUOUS, 0, 0, NULL); |
Wayne Roberts |
0:9c052ff8dd6a | 109 | } |
Wayne Roberts |
0:9c052ff8dd6a | 110 | |
Wayne Roberts |
0:9c052ff8dd6a | 111 | uint32_t Radio::Random(void) |
Wayne Roberts |
0:9c052ff8dd6a | 112 | { |
Wayne Roberts |
0:9c052ff8dd6a | 113 | uint32_t ret; |
Wayne Roberts |
0:9c052ff8dd6a | 114 | |
Wayne Roberts |
0:9c052ff8dd6a | 115 | radio.start_rx(RX_TIMEOUT_CONTINUOUS); |
Wayne Roberts |
0:9c052ff8dd6a | 116 | |
Wayne Roberts |
0:9c052ff8dd6a | 117 | ret = radio.readReg(REG_ADDR_RANDOM, 4); |
Wayne Roberts |
0:9c052ff8dd6a | 118 | |
Wayne Roberts |
0:9c052ff8dd6a | 119 | Standby(); |
Wayne Roberts |
0:9c052ff8dd6a | 120 | |
Wayne Roberts |
0:9c052ff8dd6a | 121 | return ret; |
Wayne Roberts |
0:9c052ff8dd6a | 122 | } |
Wayne Roberts |
0:9c052ff8dd6a | 123 | |
Wayne Roberts |
0:9c052ff8dd6a | 124 | bool Radio::CheckRfFrequency(unsigned hz) |
Wayne Roberts |
0:9c052ff8dd6a | 125 | { |
Wayne Roberts |
0:9c052ff8dd6a | 126 | return true; |
Wayne Roberts |
0:9c052ff8dd6a | 127 | } |
Wayne Roberts |
0:9c052ff8dd6a | 128 | |
Wayne Roberts |
0:9c052ff8dd6a | 129 | void Radio::SetChannel(unsigned hz) |
Wayne Roberts |
0:9c052ff8dd6a | 130 | { |
Wayne Roberts |
0:9c052ff8dd6a | 131 | radio.setMHz(hz / 1000000.0); |
Wayne Roberts |
0:9c052ff8dd6a | 132 | } |
Wayne Roberts |
0:9c052ff8dd6a | 133 | |
Wayne Roberts |
0:9c052ff8dd6a | 134 | float Radio::getFrfMHz() |
Wayne Roberts |
0:9c052ff8dd6a | 135 | { |
Wayne Roberts |
0:9c052ff8dd6a | 136 | return radio.getMHz(); |
Wayne Roberts |
0:9c052ff8dd6a | 137 | } |
Wayne Roberts |
0:9c052ff8dd6a | 138 | |
Wayne Roberts |
0:9c052ff8dd6a | 139 | void Radio::LoRaPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn, bool invIQ) |
Wayne Roberts |
0:9c052ff8dd6a | 140 | { |
Wayne Roberts |
0:9c052ff8dd6a | 141 | if (radio.getPacketType() != PACKET_TYPE_LORA) |
Wayne Roberts |
0:9c052ff8dd6a | 142 | radio.setPacketType(PACKET_TYPE_LORA); |
Wayne Roberts |
0:9c052ff8dd6a | 143 | |
Wayne Roberts |
0:9c052ff8dd6a | 144 | pp.lora.PreambleLengthHi = preambleLen >> 8; |
Wayne Roberts |
0:9c052ff8dd6a | 145 | pp.lora.PreambleLengthLo = preambleLen; |
Wayne Roberts |
0:9c052ff8dd6a | 146 | pp.lora.HeaderType = fixLen; |
Wayne Roberts |
0:9c052ff8dd6a | 147 | pp.lora.CRCType = crcOn; |
Wayne Roberts |
0:9c052ff8dd6a | 148 | pp.lora.InvertIQ = invIQ; |
Wayne Roberts |
0:9c052ff8dd6a | 149 | |
Wayne Roberts |
0:9c052ff8dd6a | 150 | radio.xfer(OPCODE_SET_PACKET_PARAMS, 6, 0, pp.buf); |
Wayne Roberts |
0:9c052ff8dd6a | 151 | } |
Wayne Roberts |
0:9c052ff8dd6a | 152 | |
Wayne Roberts |
0:9c052ff8dd6a | 153 | void Radio::GFSKModemConfig(unsigned bps, unsigned bw_hz, unsigned fdev_hz) |
Wayne Roberts |
0:9c052ff8dd6a | 154 | { |
Wayne Roberts |
0:9c052ff8dd6a | 155 | ModulationParams_t mp; |
Wayne Roberts |
0:9c052ff8dd6a | 156 | uint32_t u32; |
Wayne Roberts |
0:9c052ff8dd6a | 157 | |
Wayne Roberts |
0:9c052ff8dd6a | 158 | if (radio.getPacketType() != PACKET_TYPE_GFSK) |
Wayne Roberts |
0:9c052ff8dd6a | 159 | radio.setPacketType(PACKET_TYPE_GFSK); |
Wayne Roberts |
0:9c052ff8dd6a | 160 | |
Wayne Roberts |
0:9c052ff8dd6a | 161 | u32 = 32 * (XTAL_FREQ_HZ / bps); |
Wayne Roberts |
0:9c052ff8dd6a | 162 | mp.gfsk.bitrateHi = u32 >> 16; // param1 |
Wayne Roberts |
0:9c052ff8dd6a | 163 | mp.gfsk.bitrateMid = u32 >> 8; // param2 |
Wayne Roberts |
0:9c052ff8dd6a | 164 | mp.gfsk.bitrateLo = u32; // param3 |
Wayne Roberts |
0:9c052ff8dd6a | 165 | mp.gfsk.PulseShape = GFSK_SHAPE_BT1_0; // param4 |
Wayne Roberts |
0:9c052ff8dd6a | 166 | // param5: |
Wayne Roberts |
0:9c052ff8dd6a | 167 | if (bw_hz < 5800) |
Wayne Roberts |
0:9c052ff8dd6a | 168 | mp.gfsk.bandwidth = GFSK_RX_BW_4800; |
Wayne Roberts |
0:9c052ff8dd6a | 169 | else if (bw_hz < 7300) |
Wayne Roberts |
0:9c052ff8dd6a | 170 | mp.gfsk.bandwidth = GFSK_RX_BW_5800; |
Wayne Roberts |
0:9c052ff8dd6a | 171 | else if (bw_hz < 9700) |
Wayne Roberts |
0:9c052ff8dd6a | 172 | mp.gfsk.bandwidth = GFSK_RX_BW_7300; |
Wayne Roberts |
0:9c052ff8dd6a | 173 | else if (bw_hz < 11700) |
Wayne Roberts |
0:9c052ff8dd6a | 174 | mp.gfsk.bandwidth = GFSK_RX_BW_9700; |
Wayne Roberts |
0:9c052ff8dd6a | 175 | else if (bw_hz < 14600) |
Wayne Roberts |
0:9c052ff8dd6a | 176 | mp.gfsk.bandwidth = GFSK_RX_BW_11700; |
Wayne Roberts |
0:9c052ff8dd6a | 177 | else if (bw_hz < 19500) |
Wayne Roberts |
0:9c052ff8dd6a | 178 | mp.gfsk.bandwidth = GFSK_RX_BW_14600; |
Wayne Roberts |
0:9c052ff8dd6a | 179 | else if (bw_hz < 23400) |
Wayne Roberts |
0:9c052ff8dd6a | 180 | mp.gfsk.bandwidth = GFSK_RX_BW_19500; |
Wayne Roberts |
0:9c052ff8dd6a | 181 | else if (bw_hz < 29300) |
Wayne Roberts |
0:9c052ff8dd6a | 182 | mp.gfsk.bandwidth = GFSK_RX_BW_23400; |
Wayne Roberts |
0:9c052ff8dd6a | 183 | else if (bw_hz < 39000) |
Wayne Roberts |
0:9c052ff8dd6a | 184 | mp.gfsk.bandwidth = GFSK_RX_BW_29300; |
Wayne Roberts |
0:9c052ff8dd6a | 185 | else if (bw_hz < 46900) |
Wayne Roberts |
0:9c052ff8dd6a | 186 | mp.gfsk.bandwidth = GFSK_RX_BW_39000; |
Wayne Roberts |
0:9c052ff8dd6a | 187 | else if (bw_hz < 58600) |
Wayne Roberts |
0:9c052ff8dd6a | 188 | mp.gfsk.bandwidth = GFSK_RX_BW_46900; |
Wayne Roberts |
0:9c052ff8dd6a | 189 | else if (bw_hz < 78200) |
Wayne Roberts |
0:9c052ff8dd6a | 190 | mp.gfsk.bandwidth = GFSK_RX_BW_58600; |
Wayne Roberts |
0:9c052ff8dd6a | 191 | else if (bw_hz < 93800) |
Wayne Roberts |
0:9c052ff8dd6a | 192 | mp.gfsk.bandwidth = GFSK_RX_BW_78200; |
Wayne Roberts |
0:9c052ff8dd6a | 193 | else if (bw_hz < 117300) |
Wayne Roberts |
0:9c052ff8dd6a | 194 | mp.gfsk.bandwidth = GFSK_RX_BW_93800; |
Wayne Roberts |
0:9c052ff8dd6a | 195 | else if (bw_hz < 156200) |
Wayne Roberts |
0:9c052ff8dd6a | 196 | mp.gfsk.bandwidth = GFSK_RX_BW_117300; |
Wayne Roberts |
0:9c052ff8dd6a | 197 | else if (bw_hz < 187200) |
Wayne Roberts |
0:9c052ff8dd6a | 198 | mp.gfsk.bandwidth = GFSK_RX_BW_156200; |
Wayne Roberts |
0:9c052ff8dd6a | 199 | else if (bw_hz < 234300) |
Wayne Roberts |
0:9c052ff8dd6a | 200 | mp.gfsk.bandwidth = GFSK_RX_BW_187200; |
Wayne Roberts |
0:9c052ff8dd6a | 201 | else if (bw_hz < 312000) |
Wayne Roberts |
0:9c052ff8dd6a | 202 | mp.gfsk.bandwidth = GFSK_RX_BW_234300; |
Wayne Roberts |
0:9c052ff8dd6a | 203 | else if (bw_hz < 373600) |
Wayne Roberts |
0:9c052ff8dd6a | 204 | mp.gfsk.bandwidth = GFSK_RX_BW_312000; |
Wayne Roberts |
0:9c052ff8dd6a | 205 | else if (bw_hz < 467000) |
Wayne Roberts |
0:9c052ff8dd6a | 206 | mp.gfsk.bandwidth = GFSK_RX_BW_373600; |
Wayne Roberts |
0:9c052ff8dd6a | 207 | else |
Wayne Roberts |
0:9c052ff8dd6a | 208 | mp.gfsk.bandwidth = GFSK_RX_BW_467000; |
Wayne Roberts |
0:9c052ff8dd6a | 209 | |
Wayne Roberts |
0:9c052ff8dd6a | 210 | if (fdev_hz > 0) { |
Wayne Roberts |
0:9c052ff8dd6a | 211 | u32 = fdev_hz / FREQ_STEP; |
Wayne Roberts |
0:9c052ff8dd6a | 212 | mp.gfsk.fdevHi = u32 >> 16; // param6 |
Wayne Roberts |
0:9c052ff8dd6a | 213 | mp.gfsk.fdevMid = u32 >> 8; // param7 |
Wayne Roberts |
0:9c052ff8dd6a | 214 | mp.gfsk.fdevLo = u32; // param8 |
Wayne Roberts |
0:9c052ff8dd6a | 215 | } |
Wayne Roberts |
0:9c052ff8dd6a | 216 | |
Wayne Roberts |
0:9c052ff8dd6a | 217 | radio.xfer(OPCODE_SET_MODULATION_PARAMS, 8, 0, mp.buf); |
Wayne Roberts |
0:9c052ff8dd6a | 218 | } |
Wayne Roberts |
0:9c052ff8dd6a | 219 | |
Wayne Roberts |
0:9c052ff8dd6a | 220 | void Radio::GFSKPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn) |
Wayne Roberts |
0:9c052ff8dd6a | 221 | { |
Wayne Roberts |
0:9c052ff8dd6a | 222 | if (radio.getPacketType() != PACKET_TYPE_GFSK) |
Wayne Roberts |
0:9c052ff8dd6a | 223 | radio.setPacketType(PACKET_TYPE_GFSK); |
Wayne Roberts |
0:9c052ff8dd6a | 224 | |
Wayne Roberts |
0:9c052ff8dd6a | 225 | pp.gfsk.PreambleLengthHi = preambleLen >> 8; |
Wayne Roberts |
0:9c052ff8dd6a | 226 | pp.gfsk.PreambleLengthLo = preambleLen; |
Wayne Roberts |
0:9c052ff8dd6a | 227 | pp.gfsk.PreambleDetectorLength = GFSK_PREAMBLE_DETECTOR_LENGTH_16BITS; |
Wayne Roberts |
0:9c052ff8dd6a | 228 | pp.gfsk.SyncWordLength = 24; // 0xC194C1 |
Wayne Roberts |
0:9c052ff8dd6a | 229 | pp.gfsk.AddrComp = 0; |
Wayne Roberts |
0:9c052ff8dd6a | 230 | pp.gfsk.PacketType = fixLen; |
Wayne Roberts |
0:9c052ff8dd6a | 231 | if (crcOn) |
Wayne Roberts |
0:9c052ff8dd6a | 232 | pp.gfsk.CRCType = GFSK_CRC_2_BYTE; |
Wayne Roberts |
0:9c052ff8dd6a | 233 | else |
Wayne Roberts |
0:9c052ff8dd6a | 234 | pp.gfsk.CRCType = GFSK_CRC_OFF; |
Wayne Roberts |
0:9c052ff8dd6a | 235 | |
Wayne Roberts |
0:9c052ff8dd6a | 236 | //TODO pp.gfsk.PayloadLength = ; |
Wayne Roberts |
0:9c052ff8dd6a | 237 | |
Wayne Roberts |
0:9c052ff8dd6a | 238 | radio.xfer(OPCODE_SET_PACKET_PARAMS, 8, 0, pp.buf); |
Wayne Roberts |
0:9c052ff8dd6a | 239 | } |
Wayne Roberts |
0:9c052ff8dd6a | 240 | |
Wayne Roberts |
0:9c052ff8dd6a | 241 | void Radio::LoRaModemConfig(unsigned bwKHz, uint8_t sf, uint8_t cr) |
Wayne Roberts |
0:9c052ff8dd6a | 242 | { |
Wayne Roberts |
0:9c052ff8dd6a | 243 | ModulationParams_t mp; |
Wayne Roberts |
0:9c052ff8dd6a | 244 | float khz, sp; |
Wayne Roberts |
0:9c052ff8dd6a | 245 | |
Wayne Roberts |
0:9c052ff8dd6a | 246 | if (radio.getPacketType() != PACKET_TYPE_LORA) |
Wayne Roberts |
0:9c052ff8dd6a | 247 | radio.setPacketType(PACKET_TYPE_LORA); |
Wayne Roberts |
0:9c052ff8dd6a | 248 | |
Wayne Roberts |
0:9c052ff8dd6a | 249 | if (bwKHz > 250) { |
Wayne Roberts |
0:9c052ff8dd6a | 250 | mp.lora.bandwidth = LORA_BW_500; |
Wayne Roberts |
0:9c052ff8dd6a | 251 | khz = 500; |
Wayne Roberts |
0:9c052ff8dd6a | 252 | } else if (bwKHz > 125) { |
Wayne Roberts |
0:9c052ff8dd6a | 253 | mp.lora.bandwidth = LORA_BW_250; |
Wayne Roberts |
0:9c052ff8dd6a | 254 | khz = 250; |
Wayne Roberts |
0:9c052ff8dd6a | 255 | } else if (bwKHz > 63) { |
Wayne Roberts |
0:9c052ff8dd6a | 256 | mp.lora.bandwidth = LORA_BW_125; |
Wayne Roberts |
0:9c052ff8dd6a | 257 | khz = 125; |
Wayne Roberts |
0:9c052ff8dd6a | 258 | } else if (bwKHz > 42) { |
Wayne Roberts |
0:9c052ff8dd6a | 259 | mp.lora.bandwidth = LORA_BW_62; |
Wayne Roberts |
0:9c052ff8dd6a | 260 | khz = 62.5; |
Wayne Roberts |
0:9c052ff8dd6a | 261 | } else if (bwKHz > 32) { |
Wayne Roberts |
0:9c052ff8dd6a | 262 | mp.lora.bandwidth = LORA_BW_41; |
Wayne Roberts |
0:9c052ff8dd6a | 263 | khz = 41.67; |
Wayne Roberts |
0:9c052ff8dd6a | 264 | } else if (bwKHz > 21) { |
Wayne Roberts |
0:9c052ff8dd6a | 265 | mp.lora.bandwidth = LORA_BW_31; |
Wayne Roberts |
0:9c052ff8dd6a | 266 | khz = 31.25; |
Wayne Roberts |
0:9c052ff8dd6a | 267 | } else if (bwKHz > 16) { |
Wayne Roberts |
0:9c052ff8dd6a | 268 | mp.lora.bandwidth = LORA_BW_20; |
Wayne Roberts |
0:9c052ff8dd6a | 269 | khz = 20.83; |
Wayne Roberts |
0:9c052ff8dd6a | 270 | } else if (bwKHz > 11) { |
Wayne Roberts |
0:9c052ff8dd6a | 271 | mp.lora.bandwidth = LORA_BW_15; |
Wayne Roberts |
0:9c052ff8dd6a | 272 | khz = 15.625; |
Wayne Roberts |
0:9c052ff8dd6a | 273 | } else if (bwKHz > 11) { |
Wayne Roberts |
0:9c052ff8dd6a | 274 | mp.lora.bandwidth = LORA_BW_10; |
Wayne Roberts |
0:9c052ff8dd6a | 275 | khz = 10.42; |
Wayne Roberts |
0:9c052ff8dd6a | 276 | } else { |
Wayne Roberts |
0:9c052ff8dd6a | 277 | mp.lora.bandwidth = LORA_BW_7; |
Wayne Roberts |
0:9c052ff8dd6a | 278 | khz = 7.81; |
Wayne Roberts |
0:9c052ff8dd6a | 279 | } |
Wayne Roberts |
0:9c052ff8dd6a | 280 | |
Wayne Roberts |
0:9c052ff8dd6a | 281 | mp.lora.spreadingFactor = sf; |
Wayne Roberts |
0:9c052ff8dd6a | 282 | mp.lora.codingRate = cr; |
Wayne Roberts |
0:9c052ff8dd6a | 283 | |
Wayne Roberts |
0:9c052ff8dd6a | 284 | sp = (1 << mp.lora.spreadingFactor) / khz; |
Wayne Roberts |
0:9c052ff8dd6a | 285 | /* TCXO dependent */ |
Wayne Roberts |
0:9c052ff8dd6a | 286 | if (sp > 16) |
Wayne Roberts |
0:9c052ff8dd6a | 287 | mp.lora.LowDatarateOptimize = 1; // param4 |
Wayne Roberts |
0:9c052ff8dd6a | 288 | else |
Wayne Roberts |
0:9c052ff8dd6a | 289 | mp.lora.LowDatarateOptimize = 0; // param4 |
Wayne Roberts |
0:9c052ff8dd6a | 290 | |
Wayne Roberts |
0:9c052ff8dd6a | 291 | radio.xfer(OPCODE_SET_MODULATION_PARAMS, 4, 0, mp.buf); |
Wayne Roberts |
0:9c052ff8dd6a | 292 | |
Wayne Roberts |
0:9c052ff8dd6a | 293 | } |
Wayne Roberts |
0:9c052ff8dd6a | 294 | |
Wayne Roberts |
0:9c052ff8dd6a | 295 | void Radio::SetLoRaSymbolTimeout(uint8_t symbs) |
Wayne Roberts |
0:9c052ff8dd6a | 296 | { |
Wayne Roberts |
0:9c052ff8dd6a | 297 | if (radio.getPacketType() != PACKET_TYPE_LORA) |
Wayne Roberts |
0:9c052ff8dd6a | 298 | radio.setPacketType(PACKET_TYPE_LORA); |
Wayne Roberts |
0:9c052ff8dd6a | 299 | |
Wayne Roberts |
0:9c052ff8dd6a | 300 | radio.xfer(OPCODE_SET_LORA_SYMBOL_TIMEOUT, 1, 0, &symbs); |
Wayne Roberts |
0:9c052ff8dd6a | 301 | } |
Wayne Roberts |
0:9c052ff8dd6a | 302 | |
Wayne Roberts |
0:9c052ff8dd6a | 303 | int Radio::Send(uint8_t size, timestamp_t maxListenTime, timestamp_t channelFreeTime, int rssiThresh) |
Wayne Roberts |
0:9c052ff8dd6a | 304 | { |
Wayne Roberts |
0:9c052ff8dd6a | 305 | uint8_t buf[8]; |
Wayne Roberts |
0:9c052ff8dd6a | 306 | uint8_t pktType = radio.getPacketType(); |
Wayne Roberts |
0:9c052ff8dd6a | 307 | |
Wayne Roberts |
0:9c052ff8dd6a | 308 | buf[0] = 0; // TX base address |
Wayne Roberts |
0:9c052ff8dd6a | 309 | buf[1] = 0; // RX base address |
Wayne Roberts |
0:9c052ff8dd6a | 310 | radio.xfer(OPCODE_SET_BUFFER_BASE_ADDR, 2, 0, buf); |
Wayne Roberts |
0:9c052ff8dd6a | 311 | |
Wayne Roberts |
0:9c052ff8dd6a | 312 | if (pktType == PACKET_TYPE_GFSK) { |
Wayne Roberts |
0:9c052ff8dd6a | 313 | pp.gfsk.PayloadLength = size; |
Wayne Roberts |
0:9c052ff8dd6a | 314 | radio.xfer(OPCODE_SET_PACKET_PARAMS, 8, 0, pp.buf); |
Wayne Roberts |
0:9c052ff8dd6a | 315 | } else if (pktType == PACKET_TYPE_LORA) { |
Wayne Roberts |
0:9c052ff8dd6a | 316 | pp.lora.PayloadLength = size; |
Wayne Roberts |
0:9c052ff8dd6a | 317 | radio.xfer(OPCODE_SET_PACKET_PARAMS, 6, 0, pp.buf); |
Wayne Roberts |
0:9c052ff8dd6a | 318 | } |
Wayne Roberts |
0:9c052ff8dd6a | 319 | |
Wayne Roberts |
0:9c052ff8dd6a | 320 | { |
Wayne Roberts |
0:9c052ff8dd6a | 321 | IrqFlags_t irqEnable; |
Wayne Roberts |
0:9c052ff8dd6a | 322 | irqEnable.word = 0; |
Wayne Roberts |
0:9c052ff8dd6a | 323 | irqEnable.bits.TxDone = 1; |
Wayne Roberts |
0:9c052ff8dd6a | 324 | irqEnable.bits.Timeout = 1; |
Wayne Roberts |
0:9c052ff8dd6a | 325 | |
Wayne Roberts |
0:9c052ff8dd6a | 326 | buf[0] = irqEnable.word >> 8; // enable bits |
Wayne Roberts |
0:9c052ff8dd6a | 327 | buf[1] = irqEnable.word; // enable bits |
Wayne Roberts |
0:9c052ff8dd6a | 328 | buf[2] = irqEnable.word >> 8; // dio1 |
Wayne Roberts |
0:9c052ff8dd6a | 329 | buf[3] = irqEnable.word; // dio1 |
Wayne Roberts |
0:9c052ff8dd6a | 330 | buf[4] = 0; // dio2 |
Wayne Roberts |
0:9c052ff8dd6a | 331 | buf[5] = 0; // dio2 |
Wayne Roberts |
0:9c052ff8dd6a | 332 | buf[6] = 0; // dio3 |
Wayne Roberts |
0:9c052ff8dd6a | 333 | buf[7] = 0; // dio3 |
Wayne Roberts |
0:9c052ff8dd6a | 334 | radio.xfer(OPCODE_SET_DIO_IRQ_PARAMS, 8, 0, buf); |
Wayne Roberts |
0:9c052ff8dd6a | 335 | } |
Wayne Roberts |
0:9c052ff8dd6a | 336 | |
Wayne Roberts |
0:9c052ff8dd6a | 337 | antswPower = 1; |
Wayne Roberts |
0:9c052ff8dd6a | 338 | |
Wayne Roberts |
0:9c052ff8dd6a | 339 | if (maxListenTime > 0) { |
Wayne Roberts |
0:9c052ff8dd6a | 340 | int rssi; |
Wayne Roberts |
0:9c052ff8dd6a | 341 | us_timestamp_t startAt, chFreeAt, now; |
Wayne Roberts |
0:9c052ff8dd6a | 342 | uint8_t symbs = 0; |
Wayne Roberts |
0:9c052ff8dd6a | 343 | |
Wayne Roberts |
0:9c052ff8dd6a | 344 | radio.xfer(OPCODE_SET_LORA_SYMBOL_TIMEOUT, 1, 0, &symbs); |
Wayne Roberts |
0:9c052ff8dd6a | 345 | |
Wayne Roberts |
0:9c052ff8dd6a | 346 | radio.start_rx(RX_TIMEOUT_CONTINUOUS); |
Wayne Roberts |
0:9c052ff8dd6a | 347 | startAt = lpt.read_us(); |
Wayne Roberts |
0:9c052ff8dd6a | 348 | Lstart: |
Wayne Roberts |
0:9c052ff8dd6a | 349 | do { |
Wayne Roberts |
0:9c052ff8dd6a | 350 | now = lpt.read_us(); |
Wayne Roberts |
0:9c052ff8dd6a | 351 | if ((now - startAt) > maxListenTime) { |
Wayne Roberts |
0:9c052ff8dd6a | 352 | return -1; |
Wayne Roberts |
0:9c052ff8dd6a | 353 | } |
Wayne Roberts |
0:9c052ff8dd6a | 354 | radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf); |
Wayne Roberts |
0:9c052ff8dd6a | 355 | rssi = buf[1] / -2; |
Wayne Roberts |
0:9c052ff8dd6a | 356 | } while (rssi > rssiThresh); |
Wayne Roberts |
0:9c052ff8dd6a | 357 | chFreeAt = lpt.read_us(); |
Wayne Roberts |
0:9c052ff8dd6a | 358 | do { |
Wayne Roberts |
0:9c052ff8dd6a | 359 | now = lpt.read_us(); |
Wayne Roberts |
0:9c052ff8dd6a | 360 | radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf); |
Wayne Roberts |
0:9c052ff8dd6a | 361 | rssi = buf[1] / -2; |
Wayne Roberts |
0:9c052ff8dd6a | 362 | if (rssi > rssiThresh) { |
Wayne Roberts |
0:9c052ff8dd6a | 363 | goto Lstart; |
Wayne Roberts |
0:9c052ff8dd6a | 364 | } |
Wayne Roberts |
0:9c052ff8dd6a | 365 | } while ((now - chFreeAt) < channelFreeTime); |
Wayne Roberts |
0:9c052ff8dd6a | 366 | } |
Wayne Roberts |
0:9c052ff8dd6a | 367 | |
Wayne Roberts |
0:9c052ff8dd6a | 368 | radio.start_tx(size); |
Wayne Roberts |
0:9c052ff8dd6a | 369 | |
Wayne Roberts |
0:9c052ff8dd6a | 370 | return 0; |
Wayne Roberts |
0:9c052ff8dd6a | 371 | } // ..Send() |
Wayne Roberts |
0:9c052ff8dd6a | 372 | |
Wayne Roberts |
0:9c052ff8dd6a | 373 | void Radio::SetRxMaxPayloadLength(RadioModems_t modem, uint8_t max) |
Wayne Roberts |
0:9c052ff8dd6a | 374 | { |
Wayne Roberts |
0:9c052ff8dd6a | 375 | uint8_t buf[8]; |
Wayne Roberts |
0:9c052ff8dd6a | 376 | |
Wayne Roberts |
0:9c052ff8dd6a | 377 | if (modem == MODEM_FSK) { |
Wayne Roberts |
0:9c052ff8dd6a | 378 | pp.gfsk.PayloadLength = max; |
Wayne Roberts |
0:9c052ff8dd6a | 379 | memcpy(buf, pp.buf, 8); |
Wayne Roberts |
0:9c052ff8dd6a | 380 | radio.xfer(OPCODE_SET_PACKET_PARAMS, 8, 0, buf); |
Wayne Roberts |
0:9c052ff8dd6a | 381 | } else if (modem == MODEM_LORA) { |
Wayne Roberts |
0:9c052ff8dd6a | 382 | pp.lora.PayloadLength = max; |
Wayne Roberts |
0:9c052ff8dd6a | 383 | memcpy(buf, pp.buf, 6); |
Wayne Roberts |
0:9c052ff8dd6a | 384 | radio.xfer(OPCODE_SET_PACKET_PARAMS, 6, 0, buf); |
Wayne Roberts |
0:9c052ff8dd6a | 385 | } |
Wayne Roberts |
0:9c052ff8dd6a | 386 | } |
Wayne Roberts |
0:9c052ff8dd6a | 387 | |
Wayne Roberts |
0:9c052ff8dd6a | 388 | void Radio::dio1_top_half() |
Wayne Roberts |
0:9c052ff8dd6a | 389 | { |
Wayne Roberts |
0:9c052ff8dd6a | 390 | irqAt = lpt.read_us(); |
Wayne Roberts |
0:9c052ff8dd6a | 391 | |
Wayne Roberts |
0:9c052ff8dd6a | 392 | if (radio.chipMode == CHIPMODE_TX) { |
Wayne Roberts |
0:9c052ff8dd6a | 393 | /* TxDone handling requires low latency */ |
Wayne Roberts |
0:9c052ff8dd6a | 394 | if (RadioEvents->TxDone_topHalf) { |
Wayne Roberts |
0:9c052ff8dd6a | 395 | RadioEvents->TxDone_topHalf(); |
Wayne Roberts |
0:9c052ff8dd6a | 396 | } |
Wayne Roberts |
0:9c052ff8dd6a | 397 | } else { |
Wayne Roberts |
0:9c052ff8dd6a | 398 | #ifdef TARGET_FF_MORPHO |
Wayne Roberts |
0:9c052ff8dd6a | 399 | pc3 = 0; |
Wayne Roberts |
0:9c052ff8dd6a | 400 | #endif /* TARGET_FF_MORPHO */ |
Wayne Roberts |
0:9c052ff8dd6a | 401 | } |
Wayne Roberts |
0:9c052ff8dd6a | 402 | } |
Wayne Roberts |
0:9c052ff8dd6a | 403 | |
Wayne Roberts |
0:9c052ff8dd6a | 404 | void Radio::timeout_callback(bool tx) |
Wayne Roberts |
0:9c052ff8dd6a | 405 | { |
Wayne Roberts |
0:9c052ff8dd6a | 406 | if (!tx) { |
Wayne Roberts |
0:9c052ff8dd6a | 407 | if (RadioEvents->RxTimeout) |
Wayne Roberts |
0:9c052ff8dd6a | 408 | RadioEvents->RxTimeout(); |
Wayne Roberts |
0:9c052ff8dd6a | 409 | #ifdef TARGET_FF_MORPHO |
Wayne Roberts |
0:9c052ff8dd6a | 410 | pc3 = 0; |
Wayne Roberts |
0:9c052ff8dd6a | 411 | #endif /* TARGET_FF_MORPHO */ |
Wayne Roberts |
0:9c052ff8dd6a | 412 | } // else TODO tx timeout |
Wayne Roberts |
0:9c052ff8dd6a | 413 | } |
Wayne Roberts |
0:9c052ff8dd6a | 414 | |
Wayne Roberts |
0:9c052ff8dd6a | 415 | void Radio::rx_done(uint8_t size, float rssi, float snr) |
Wayne Roberts |
0:9c052ff8dd6a | 416 | { |
Wayne Roberts |
0:9c052ff8dd6a | 417 | RadioEvents->RxDone(size, rssi, snr); |
Wayne Roberts |
0:9c052ff8dd6a | 418 | } |
Wayne Roberts |
0:9c052ff8dd6a | 419 | |
Wayne Roberts |
0:9c052ff8dd6a | 420 | void Radio::txDoneBottom() |
Wayne Roberts |
0:9c052ff8dd6a | 421 | { |
Wayne Roberts |
0:9c052ff8dd6a | 422 | if (RadioEvents->TxDone_botHalf) |
Wayne Roberts |
0:9c052ff8dd6a | 423 | RadioEvents->TxDone_botHalf(); |
Wayne Roberts |
0:9c052ff8dd6a | 424 | } |
Wayne Roberts |
0:9c052ff8dd6a | 425 | |
Wayne Roberts |
0:9c052ff8dd6a | 426 | void Radio::Init(const RadioEvents_t* e) |
Wayne Roberts |
0:9c052ff8dd6a | 427 | { |
Wayne Roberts |
0:9c052ff8dd6a | 428 | radio.txDone = txDoneBottom; |
Wayne Roberts |
0:9c052ff8dd6a | 429 | radio.rxDone = rx_done; |
Wayne Roberts |
0:9c052ff8dd6a | 430 | radio.timeout = timeout_callback; |
Wayne Roberts |
0:9c052ff8dd6a | 431 | radio.chipModeChange = chipModeChange; |
Wayne Roberts |
0:9c052ff8dd6a | 432 | radio.dio1_topHalf = dio1_top_half; |
Wayne Roberts |
0:9c052ff8dd6a | 433 | |
Wayne Roberts |
0:9c052ff8dd6a | 434 | RadioEvents = e; |
Wayne Roberts |
0:9c052ff8dd6a | 435 | lpt.start(); |
Wayne Roberts |
0:9c052ff8dd6a | 436 | |
Wayne Roberts |
0:9c052ff8dd6a | 437 | radio.SetDIO2AsRfSwitchCtrl(1); |
Wayne Roberts |
0:9c052ff8dd6a | 438 | } |
Wayne Roberts |
0:9c052ff8dd6a | 439 | |
Wayne Roberts |
0:9c052ff8dd6a | 440 | void Radio::service() |
Wayne Roberts |
0:9c052ff8dd6a | 441 | { |
Wayne Roberts |
0:9c052ff8dd6a | 442 | radio.service(); |
Wayne Roberts |
0:9c052ff8dd6a | 443 | } |
Wayne Roberts |
0:9c052ff8dd6a | 444 | |
Wayne Roberts |
0:9c052ff8dd6a | 445 | void Radio::SetPublicNetwork(bool en) |
Wayne Roberts |
0:9c052ff8dd6a | 446 | { |
Wayne Roberts |
0:9c052ff8dd6a | 447 | uint16_t ppg; |
Wayne Roberts |
0:9c052ff8dd6a | 448 | |
Wayne Roberts |
0:9c052ff8dd6a | 449 | if (en) |
Wayne Roberts |
0:9c052ff8dd6a | 450 | ppg = 0x3444; |
Wayne Roberts |
0:9c052ff8dd6a | 451 | else |
Wayne Roberts |
0:9c052ff8dd6a | 452 | ppg = 0x1424; |
Wayne Roberts |
0:9c052ff8dd6a | 453 | |
Wayne Roberts |
0:9c052ff8dd6a | 454 | radio.writeReg(REG_ADDR_LORA_SYNC, ppg, 2); |
Wayne Roberts |
0:9c052ff8dd6a | 455 | } |
Wayne Roberts |
0:9c052ff8dd6a | 456 | |
Wayne Roberts |
0:9c052ff8dd6a | 457 | uint32_t Radio::lora_toa_us( uint8_t pktLen ) |
Wayne Roberts |
0:9c052ff8dd6a | 458 | { |
Wayne Roberts |
0:9c052ff8dd6a | 459 | double bwKHz; |
Wayne Roberts |
0:9c052ff8dd6a | 460 | unsigned preambleLen; |
Wayne Roberts |
0:9c052ff8dd6a | 461 | ModulationParams_t mp; |
Wayne Roberts |
0:9c052ff8dd6a | 462 | |
Wayne Roberts |
0:9c052ff8dd6a | 463 | { |
Wayne Roberts |
0:9c052ff8dd6a | 464 | loraConfig1_t conf1; |
Wayne Roberts |
0:9c052ff8dd6a | 465 | conf1.octet = radio.readReg(REG_ADDR_LORA_CONFIG1, 1); |
Wayne Roberts |
0:9c052ff8dd6a | 466 | mp.lora.LowDatarateOptimize = conf1.bits.ppm_offset; |
Wayne Roberts |
0:9c052ff8dd6a | 467 | pp.lora.HeaderType = conf1.bits.implicit_header; |
Wayne Roberts |
0:9c052ff8dd6a | 468 | pp.lora.InvertIQ = conf1.bits.rx_invert_iq; |
Wayne Roberts |
0:9c052ff8dd6a | 469 | mp.lora.codingRate = conf1.bits.tx_coding_rate; |
Wayne Roberts |
0:9c052ff8dd6a | 470 | } |
Wayne Roberts |
0:9c052ff8dd6a | 471 | |
Wayne Roberts |
0:9c052ff8dd6a | 472 | { |
Wayne Roberts |
0:9c052ff8dd6a | 473 | loraConfig2_t conf2; |
Wayne Roberts |
0:9c052ff8dd6a | 474 | conf2.octet = radio.readReg(REG_ADDR_LORA_CONFIG2, 1); |
Wayne Roberts |
0:9c052ff8dd6a | 475 | pp.lora.CRCType = conf2.bits.tx_payload_crc16_en; |
Wayne Roberts |
0:9c052ff8dd6a | 476 | } |
Wayne Roberts |
0:9c052ff8dd6a | 477 | |
Wayne Roberts |
0:9c052ff8dd6a | 478 | |
Wayne Roberts |
0:9c052ff8dd6a | 479 | { |
Wayne Roberts |
0:9c052ff8dd6a | 480 | uint32_t val; |
Wayne Roberts |
0:9c052ff8dd6a | 481 | val = radio.readReg(REG_ADDR_LORA_PREAMBLE_SYMBNB, 2); |
Wayne Roberts |
0:9c052ff8dd6a | 482 | pp.lora.PreambleLengthHi = val >> 8; |
Wayne Roberts |
0:9c052ff8dd6a | 483 | pp.lora.PreambleLengthLo = val; |
Wayne Roberts |
0:9c052ff8dd6a | 484 | } |
Wayne Roberts |
0:9c052ff8dd6a | 485 | |
Wayne Roberts |
0:9c052ff8dd6a | 486 | preambleLen = (pp.lora.PreambleLengthHi << 8) + pp.lora.PreambleLengthLo; |
Wayne Roberts |
0:9c052ff8dd6a | 487 | |
Wayne Roberts |
0:9c052ff8dd6a | 488 | { |
Wayne Roberts |
0:9c052ff8dd6a | 489 | loraConfig0_t conf0; |
Wayne Roberts |
0:9c052ff8dd6a | 490 | conf0.octet = radio.readReg(REG_ADDR_LORA_CONFIG0, 1); |
Wayne Roberts |
0:9c052ff8dd6a | 491 | mp.lora.spreadingFactor = conf0.bits.modem_sf; |
Wayne Roberts |
0:9c052ff8dd6a | 492 | mp.lora.bandwidth = conf0.bits.modem_bw; |
Wayne Roberts |
0:9c052ff8dd6a | 493 | } |
Wayne Roberts |
0:9c052ff8dd6a | 494 | |
Wayne Roberts |
0:9c052ff8dd6a | 495 | switch (mp.lora.bandwidth) { |
Wayne Roberts |
0:9c052ff8dd6a | 496 | case LORA_BW_7: bwKHz = 7.81; break; |
Wayne Roberts |
0:9c052ff8dd6a | 497 | case LORA_BW_10: bwKHz = 10.42; break; |
Wayne Roberts |
0:9c052ff8dd6a | 498 | case LORA_BW_15: bwKHz = 15.625; break; |
Wayne Roberts |
0:9c052ff8dd6a | 499 | case LORA_BW_20: bwKHz = 20.83; break; |
Wayne Roberts |
0:9c052ff8dd6a | 500 | case LORA_BW_31: bwKHz = 31.25; break; |
Wayne Roberts |
0:9c052ff8dd6a | 501 | case LORA_BW_41: bwKHz = 41.67; break; |
Wayne Roberts |
0:9c052ff8dd6a | 502 | case LORA_BW_62: bwKHz = 62.5; break; |
Wayne Roberts |
0:9c052ff8dd6a | 503 | case LORA_BW_125: bwKHz = 125; break; |
Wayne Roberts |
0:9c052ff8dd6a | 504 | case LORA_BW_250: bwKHz = 250; break; |
Wayne Roberts |
0:9c052ff8dd6a | 505 | case LORA_BW_500: bwKHz = 500; break; |
Wayne Roberts |
0:9c052ff8dd6a | 506 | default: bwKHz = 0; break; |
Wayne Roberts |
0:9c052ff8dd6a | 507 | } |
Wayne Roberts |
0:9c052ff8dd6a | 508 | |
Wayne Roberts |
0:9c052ff8dd6a | 509 | // Symbol rate : time for one symbol (secs) |
Wayne Roberts |
0:9c052ff8dd6a | 510 | double rs = bwKHz / ( 1 << mp.lora.spreadingFactor ); |
Wayne Roberts |
0:9c052ff8dd6a | 511 | double ts = 1 / rs; |
Wayne Roberts |
0:9c052ff8dd6a | 512 | // time of preamble |
Wayne Roberts |
0:9c052ff8dd6a | 513 | double tPreamble = ( preambleLen + 4.25 ) * ts; |
Wayne Roberts |
0:9c052ff8dd6a | 514 | // Symbol length of payload and time |
Wayne Roberts |
0:9c052ff8dd6a | 515 | |
Wayne Roberts |
0:9c052ff8dd6a | 516 | double tmp = ceil( ( 8 * pktLen - 4 * mp.lora.spreadingFactor + |
Wayne Roberts |
0:9c052ff8dd6a | 517 | 28 + 16 * pp.lora.CRCType - |
Wayne Roberts |
0:9c052ff8dd6a | 518 | ( pp.lora.HeaderType ? 20 : 0 ) ) / |
Wayne Roberts |
0:9c052ff8dd6a | 519 | ( double )( 4 * ( mp.lora.spreadingFactor - |
Wayne Roberts |
0:9c052ff8dd6a | 520 | ( ( mp.lora.LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) * |
Wayne Roberts |
0:9c052ff8dd6a | 521 | ( mp.lora.codingRate + 4 ); |
Wayne Roberts |
0:9c052ff8dd6a | 522 | double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 ); |
Wayne Roberts |
0:9c052ff8dd6a | 523 | double tPayload = nPayload * ts; |
Wayne Roberts |
0:9c052ff8dd6a | 524 | // Time on air |
Wayne Roberts |
0:9c052ff8dd6a | 525 | double tOnAir = tPreamble + tPayload; |
Wayne Roberts |
0:9c052ff8dd6a | 526 | // return microseconds |
Wayne Roberts |
0:9c052ff8dd6a | 527 | return floor( tOnAir * 1000 + 0.999 ); |
Wayne Roberts |
0:9c052ff8dd6a | 528 | } |
Wayne Roberts |
0:9c052ff8dd6a | 529 | |
Wayne Roberts |
0:9c052ff8dd6a | 530 | #if 0 |
Wayne Roberts |
0:9c052ff8dd6a | 531 | void Radio::PrintStatus() |
Wayne Roberts |
0:9c052ff8dd6a | 532 | { |
Wayne Roberts |
0:9c052ff8dd6a | 533 | /* uint8_t buf[4]; |
Wayne Roberts |
0:9c052ff8dd6a | 534 | status_t status; |
Wayne Roberts |
0:9c052ff8dd6a | 535 | IrqFlags_t irqFlags; |
Wayne Roberts |
0:9c052ff8dd6a | 536 | radio.xfer(OPCODE_GET_IRQ_STATUS, 0, 3, buf); |
Wayne Roberts |
0:9c052ff8dd6a | 537 | irqFlags.word = buf[1] << 8; |
Wayne Roberts |
0:9c052ff8dd6a | 538 | irqFlags.word |= buf[2]; |
Wayne Roberts |
0:9c052ff8dd6a | 539 | |
Wayne Roberts |
0:9c052ff8dd6a | 540 | printf("dio1:%u irqFlags:%04x\r\n", radio.getDIO1(), irqFlags.word); |
Wayne Roberts |
0:9c052ff8dd6a | 541 | radio.xfer(OPCODE_GET_STATUS, 0, 1, &status.octet); |
Wayne Roberts |
0:9c052ff8dd6a | 542 | radio.PrintChipStatus(status);*/ |
Wayne Roberts |
0:9c052ff8dd6a | 543 | { |
Wayne Roberts |
0:9c052ff8dd6a | 544 | loraConfig1_t conf1; |
Wayne Roberts |
0:9c052ff8dd6a | 545 | conf1.octet = radio.readReg(REG_ADDR_LORA_CONFIG1, 1); |
Wayne Roberts |
0:9c052ff8dd6a | 546 | printf("ldro%u %s %s cr%u\r\n", |
Wayne Roberts |
0:9c052ff8dd6a | 547 | conf1.bits.ppm_offset, |
Wayne Roberts |
0:9c052ff8dd6a | 548 | conf1.bits.implicit_header ? "fixed" : "var", |
Wayne Roberts |
0:9c052ff8dd6a | 549 | conf1.bits.rx_invert_iq ? "inv" : "std", |
Wayne Roberts |
0:9c052ff8dd6a | 550 | conf1.bits.tx_coding_rate |
Wayne Roberts |
0:9c052ff8dd6a | 551 | ); |
Wayne Roberts |
0:9c052ff8dd6a | 552 | } |
Wayne Roberts |
0:9c052ff8dd6a | 553 | |
Wayne Roberts |
0:9c052ff8dd6a | 554 | { |
Wayne Roberts |
0:9c052ff8dd6a | 555 | loraConfig2_t conf2; |
Wayne Roberts |
0:9c052ff8dd6a | 556 | conf2.octet = radio.readReg(REG_ADDR_LORA_CONFIG2, 1); |
Wayne Roberts |
0:9c052ff8dd6a | 557 | printf("crc16en:%u ", conf2.bits.tx_payload_crc16_en); |
Wayne Roberts |
0:9c052ff8dd6a | 558 | } |
Wayne Roberts |
0:9c052ff8dd6a | 559 | |
Wayne Roberts |
0:9c052ff8dd6a | 560 | |
Wayne Roberts |
0:9c052ff8dd6a | 561 | { |
Wayne Roberts |
0:9c052ff8dd6a | 562 | uint32_t val; |
Wayne Roberts |
0:9c052ff8dd6a | 563 | val = radio.readReg(REG_ADDR_LORA_PREAMBLE_SYMBNB, 2); |
Wayne Roberts |
0:9c052ff8dd6a | 564 | printf("prelen %lu ", val); |
Wayne Roberts |
0:9c052ff8dd6a | 565 | } |
Wayne Roberts |
0:9c052ff8dd6a | 566 | |
Wayne Roberts |
0:9c052ff8dd6a | 567 | { |
Wayne Roberts |
0:9c052ff8dd6a | 568 | loraConfig0_t conf0; |
Wayne Roberts |
0:9c052ff8dd6a | 569 | conf0.octet = radio.readReg(REG_ADDR_LORA_CONFIG0, 1); |
Wayne Roberts |
0:9c052ff8dd6a | 570 | printf("sf%u, bw%u ", conf0.bits.modem_sf, conf0.bits.modem_bw); |
Wayne Roberts |
0:9c052ff8dd6a | 571 | } |
Wayne Roberts |
0:9c052ff8dd6a | 572 | |
Wayne Roberts |
0:9c052ff8dd6a | 573 | printf("%.3fMHz\r\n", radio.getMHz()); |
Wayne Roberts |
0:9c052ff8dd6a | 574 | } |
Wayne Roberts |
0:9c052ff8dd6a | 575 | #endif /* if 0 */ |
Wayne Roberts |
0:9c052ff8dd6a | 576 | |
Wayne Roberts |
0:9c052ff8dd6a | 577 | #endif /* ..SX126x_H */ |