Ilya Krylov / sx12xx_hal123

1

radio_sx128x.cpp@17:5f34cbe2ac53, 2020-06-01 (annotated)

Committer:
Wayne Roberts
Date:
Mon Jun 01 15:59:56 2020 -0700
Revision:
17:5f34cbe2ac53
Parent:
16:34de2ab7eb32
Child:
20:75635d50262e
support platforms without LowPowerTimer, add LR1110

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 SX128x_H
Wayne Roberts 0:9c052ff8dd6a 3 #include "SPIu.h"
Wayne Roberts 0:9c052ff8dd6a 4 #include <float.h>
Wayne Roberts 0:9c052ff8dd6a 5
Wayne Roberts 0:9c052ff8dd6a 6 #ifdef TARGET_FF_ARDUINO /* pins of SX126xDVK1xAS board */
Wayne Roberts 1:e79b0a55135f 7 #define NRST_PIN A0
Wayne Roberts 0:9c052ff8dd6a 8 SPIu spi(D11, D12, D13); // mosi, miso, sclk
Wayne Roberts 0:9c052ff8dd6a 9 // spi, nss, busy, dio1
Wayne Roberts 1:e79b0a55135f 10 SX128x Radio::radio(spi, D7, D3, D5, NRST_PIN);
Wayne Roberts 0:9c052ff8dd6a 11
Wayne Roberts 0:9c052ff8dd6a 12 #define LED_ON 1
Wayne Roberts 0:9c052ff8dd6a 13 #define LED_OFF 0
Wayne Roberts 0:9c052ff8dd6a 14 DigitalOut tx_led(A4);
Wayne Roberts 0:9c052ff8dd6a 15 DigitalOut rx_led(A5);
Wayne Roberts 0:9c052ff8dd6a 16
Wayne Roberts 0:9c052ff8dd6a 17
Wayne Roberts 0:9c052ff8dd6a 18 DigitalOut ant_sw(A3);
Wayne Roberts 0:9c052ff8dd6a 19 DigitalOut cps(D6); // SE2436L
Wayne Roberts 0:9c052ff8dd6a 20
Wayne Roberts 0:9c052ff8dd6a 21 bool fe_enable; // SE2436L
Wayne Roberts 0:9c052ff8dd6a 22
Wayne Roberts 0:9c052ff8dd6a 23 void Radio::chipModeChange()
Wayne Roberts 0:9c052ff8dd6a 24 {
Wayne Roberts 0:9c052ff8dd6a 25 if (radio.chipMode == CHIPMODE_NONE) {
Wayne Roberts 0:9c052ff8dd6a 26 cps = 0;
Wayne Roberts 0:9c052ff8dd6a 27 tx_led = LED_OFF;
Wayne Roberts 0:9c052ff8dd6a 28 rx_led = LED_OFF;
Wayne Roberts 0:9c052ff8dd6a 29 } else if (radio.chipMode == CHIPMODE_TX) {
Wayne Roberts 0:9c052ff8dd6a 30 cps = fe_enable;
Wayne Roberts 0:9c052ff8dd6a 31 tx_led = LED_ON;
Wayne Roberts 0:9c052ff8dd6a 32 rx_led = LED_OFF;
Wayne Roberts 0:9c052ff8dd6a 33 } else if (radio.chipMode == CHIPMODE_RX) {
Wayne Roberts 0:9c052ff8dd6a 34 cps = fe_enable;
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 #ifdef TARGET_FF_MORPHO
Wayne Roberts 0:9c052ff8dd6a 42 DigitalOut pc3(PC_3); // debug RX indication, for nucleo boards
Wayne Roberts 7:ba81f66e56d1 43 #define RX_INDICATION pc3
Wayne Roberts 0:9c052ff8dd6a 44 #endif /* TARGET_FF_MORPHO */
Wayne Roberts 0:9c052ff8dd6a 45
Wayne Roberts 17:5f34cbe2ac53 46 #ifdef DEVICE_LPTICKER
Wayne Roberts 0:9c052ff8dd6a 47 LowPowerTimer Radio::lpt;
Wayne Roberts 17:5f34cbe2ac53 48 #else
Wayne Roberts 17:5f34cbe2ac53 49 Timer Radio::lpt;
Wayne Roberts 17:5f34cbe2ac53 50 #endif
Wayne Roberts 0:9c052ff8dd6a 51
Wayne Roberts 0:9c052ff8dd6a 52 PacketParams_t Radio::ppGFSK;
Wayne Roberts 0:9c052ff8dd6a 53 PacketParams_t Radio::ppLORA;
Wayne Roberts 0:9c052ff8dd6a 54 PacketParams_t Radio::ppFLRC;
Wayne Roberts 0:9c052ff8dd6a 55
Wayne Roberts 0:9c052ff8dd6a 56 ModulationParams_t Radio::mpBLE_GFSK;
Wayne Roberts 0:9c052ff8dd6a 57 ModulationParams_t Radio::mpFLRC;
Wayne Roberts 0:9c052ff8dd6a 58 ModulationParams_t Radio::mpLORA;
Wayne Roberts 0:9c052ff8dd6a 59
Wayne Roberts 0:9c052ff8dd6a 60 const RadioEvents_t* RadioEvents;
Wayne Roberts 0:9c052ff8dd6a 61 volatile us_timestamp_t Radio::irqAt;
Wayne Roberts 0:9c052ff8dd6a 62
Wayne Roberts 9:97a6de3dbc86 63 unsigned Radio::symbolPeriodUs;
Wayne Roberts 9:97a6de3dbc86 64 unsigned Radio::nSymbs;
Wayne Roberts 9:97a6de3dbc86 65 unsigned Radio::rxTimeoutMs;
Wayne Roberts 9:97a6de3dbc86 66
Wayne Roberts 0:9c052ff8dd6a 67 void Radio::readChip()
Wayne Roberts 0:9c052ff8dd6a 68 {
Wayne Roberts 0:9c052ff8dd6a 69 uint8_t reg8;
Wayne Roberts 0:9c052ff8dd6a 70
Wayne Roberts 0:9c052ff8dd6a 71 reg8 = radio.readReg(REG_ADDR_PKTCTRL0, 1);
Wayne Roberts 0:9c052ff8dd6a 72 ppGFSK.gfskFLRC.HeaderType = reg8 & 0x20;
Wayne Roberts 0:9c052ff8dd6a 73 ppFLRC.gfskFLRC.HeaderType = reg8 & 0x20;
Wayne Roberts 0:9c052ff8dd6a 74
Wayne Roberts 0:9c052ff8dd6a 75 reg8 = radio.readReg(REG_ADDR_PKTCTRL1, 1);
Wayne Roberts 0:9c052ff8dd6a 76 ppGFSK.gfskFLRC.PreambleLength = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 77 ppFLRC.gfskFLRC.PreambleLength = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 78 ppGFSK.gfskFLRC.SyncWordLength = reg8 & 0x0e;
Wayne Roberts 0:9c052ff8dd6a 79 ppFLRC.gfskFLRC.SyncWordLength = reg8 & 0x06;
Wayne Roberts 0:9c052ff8dd6a 80 if (ppFLRC.gfskFLRC.SyncWordLength == 0x06)
Wayne Roberts 0:9c052ff8dd6a 81 ppFLRC.gfskFLRC.SyncWordLength = FLRC_SYNC_WORD_LEN_P32S;
Wayne Roberts 0:9c052ff8dd6a 82
Wayne Roberts 0:9c052ff8dd6a 83 reg8 = radio.readReg(REG_ADDR_PKT_SYNC_ADRS_CTRL, 1);
Wayne Roberts 0:9c052ff8dd6a 84 ppGFSK.gfskFLRC.SyncWordMatch = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 85 ppFLRC.gfskFLRC.SyncWordMatch = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 86
Wayne Roberts 0:9c052ff8dd6a 87 reg8 = radio.readReg(REG_ADDR_PAYLOAD_LEN, 1);
Wayne Roberts 0:9c052ff8dd6a 88 ppGFSK.gfskFLRC.PayloadLength = reg8;
Wayne Roberts 0:9c052ff8dd6a 89 ppFLRC.gfskFLRC.PayloadLength = reg8;
Wayne Roberts 0:9c052ff8dd6a 90
Wayne Roberts 0:9c052ff8dd6a 91 reg8 = radio.readReg(REG_ADDR_PKT_TX_HEADER, 1); // TODO hi bit of payload length
Wayne Roberts 0:9c052ff8dd6a 92 //ppBLE.ble.ConnectionState = reg8 & 0xe0;
Wayne Roberts 0:9c052ff8dd6a 93 //ppBLE.ble.BleTestPayload = reg8 & 0x1c;
Wayne Roberts 0:9c052ff8dd6a 94
Wayne Roberts 0:9c052ff8dd6a 95 reg8 = radio.readReg(REG_ADDR_PKT_BITSTREAM_CTRL, 1);
Wayne Roberts 0:9c052ff8dd6a 96 //ppBLE.ble.CrcLength = reg8 & 0x30;
Wayne Roberts 0:9c052ff8dd6a 97 //ppBLE.ble.Whitening = reg8 & 0x08;
Wayne Roberts 0:9c052ff8dd6a 98 ppGFSK.gfskFLRC.CRCLength = reg8 & 0x30;
Wayne Roberts 0:9c052ff8dd6a 99 ppFLRC.gfskFLRC.CRCLength = reg8 & 0x30;
Wayne Roberts 0:9c052ff8dd6a 100 ppGFSK.gfskFLRC.Whitening = reg8 & 0x08;
Wayne Roberts 0:9c052ff8dd6a 101 ppFLRC.gfskFLRC.Whitening = reg8 & 0x08;
Wayne Roberts 0:9c052ff8dd6a 102
Wayne Roberts 0:9c052ff8dd6a 103 {
Wayne Roberts 0:9c052ff8dd6a 104 LoRaPktPar0_t LoRaPktPar0;
Wayne Roberts 0:9c052ff8dd6a 105 LoRaPktPar0.octet = radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:9c052ff8dd6a 106 switch (LoRaPktPar0.bits.modem_bw) {
Wayne Roberts 0:9c052ff8dd6a 107 case 2: mpLORA.lora.bandwidth = LORA_BW_200; break;
Wayne Roberts 0:9c052ff8dd6a 108 case 3: mpLORA.lora.bandwidth = LORA_BW_400; break;
Wayne Roberts 0:9c052ff8dd6a 109 case 4: mpLORA.lora.bandwidth = LORA_BW_800; break;
Wayne Roberts 0:9c052ff8dd6a 110 case 5: mpLORA.lora.bandwidth = LORA_BW_1600; break;
Wayne Roberts 0:9c052ff8dd6a 111 }
Wayne Roberts 0:9c052ff8dd6a 112 mpLORA.lora.spreadingFactor = LoRaPktPar0.bits.modem_sf << 4;
Wayne Roberts 0:9c052ff8dd6a 113 }
Wayne Roberts 0:9c052ff8dd6a 114
Wayne Roberts 0:9c052ff8dd6a 115 {
Wayne Roberts 0:9c052ff8dd6a 116 LoRaPktPar1_t LoRaPktPar1;
Wayne Roberts 0:9c052ff8dd6a 117 LoRaPktPar1.octet = radio.readReg(REG_ADDR_LORA_PKTPAR1, 1);
Wayne Roberts 0:9c052ff8dd6a 118 mpLORA.lora.codingRate = LoRaPktPar1.bits.coding_rate;
Wayne Roberts 1:e79b0a55135f 119 ppLORA.lora.InvertIQ = LoRaPktPar1.octet & LORA_IQ_STD; // LoRaPktPar1.bits.rxinvert_iq
Wayne Roberts 1:e79b0a55135f 120 ppLORA.lora.HeaderType = LoRaPktPar1.bits.implicit_header ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 0:9c052ff8dd6a 121 // LoRaPktPar1.bits.ppm_offset
Wayne Roberts 0:9c052ff8dd6a 122 }
Wayne Roberts 0:9c052ff8dd6a 123
Wayne Roberts 0:9c052ff8dd6a 124 {
Wayne Roberts 0:9c052ff8dd6a 125 LoRaPreambleReg_t LoRaPreambleReg;
Wayne Roberts 0:9c052ff8dd6a 126 LoRaPreambleReg.octet = radio.readReg(REG_ADDR_LORA_PREAMBLE, 1);
Wayne Roberts 0:9c052ff8dd6a 127 ppLORA.lora.PreambleLength = LoRaPreambleReg.bits.preamble_symb1_nb * (1 << LoRaPreambleReg.bits.preamble_symb_nb_exp);
Wayne Roberts 0:9c052ff8dd6a 128 }
Wayne Roberts 0:9c052ff8dd6a 129 ppLORA.lora.PayloadLength = radio.readReg(REG_ADDR_LORA_TX_PAYLOAD_LENGTH, 1);
Wayne Roberts 0:9c052ff8dd6a 130
Wayne Roberts 0:9c052ff8dd6a 131 {
Wayne Roberts 0:9c052ff8dd6a 132 LoRaLrCtl_t LoRaLrCtl;
Wayne Roberts 0:9c052ff8dd6a 133 LoRaLrCtl.octet = radio.readReg(REG_ADDR_LORA_LRCTL, 1);
Wayne Roberts 0:9c052ff8dd6a 134 ppLORA.lora.crc = LoRaLrCtl.octet & 0x20; // LoRaLrCtl.bits.crc_en
Wayne Roberts 0:9c052ff8dd6a 135 }
Wayne Roberts 0:9c052ff8dd6a 136
Wayne Roberts 0:9c052ff8dd6a 137 {
Wayne Roberts 0:9c052ff8dd6a 138 RegRxBw_t RegRxBw;
Wayne Roberts 0:9c052ff8dd6a 139 unsigned bps;
Wayne Roberts 0:9c052ff8dd6a 140 FloraPreambleHi_t FloraPreambleHi;
Wayne Roberts 0:9c052ff8dd6a 141 float mi, fdev_hz;
Wayne Roberts 0:9c052ff8dd6a 142 unsigned freqDev;
Wayne Roberts 0:9c052ff8dd6a 143 FskModDfH_t FskModDfH;
Wayne Roberts 0:9c052ff8dd6a 144 FskModDfH.octet = radio.readReg(REG_ADDR_FSK_MODDFH, 1);
Wayne Roberts 0:9c052ff8dd6a 145 freqDev = FskModDfH.bits.freqDev;
Wayne Roberts 0:9c052ff8dd6a 146 freqDev <<= 8;
Wayne Roberts 0:9c052ff8dd6a 147 freqDev |= radio.readReg(REG_ADDR_FSK_MODDFL, 1);
Wayne Roberts 0:9c052ff8dd6a 148 fdev_hz = freqDev * PLL_STEP_HZ;
Wayne Roberts 0:9c052ff8dd6a 149
Wayne Roberts 0:9c052ff8dd6a 150 FloraPreambleHi.octet = radio.readReg(REG_ADDR_FLORA_PREAMBLE_HI, 1);
Wayne Roberts 0:9c052ff8dd6a 151 switch (FloraPreambleHi.bits.data_rate) {
Wayne Roberts 0:9c052ff8dd6a 152 case 0:
Wayne Roberts 0:9c052ff8dd6a 153 bps = 2.0e6;
Wayne Roberts 0:9c052ff8dd6a 154 //mpFLRC.flrc.bitrateBandwidth = ??; // 2.6
Wayne Roberts 0:9c052ff8dd6a 155 break;
Wayne Roberts 0:9c052ff8dd6a 156 case 1:
Wayne Roberts 0:9c052ff8dd6a 157 bps = 1.6e6;
Wayne Roberts 0:9c052ff8dd6a 158 //mpFLRC.flrc.bitrateBandwidth = ??; // 2.08
Wayne Roberts 0:9c052ff8dd6a 159 break;
Wayne Roberts 0:9c052ff8dd6a 160 case 2:
Wayne Roberts 0:9c052ff8dd6a 161 bps = 1.0e6;
Wayne Roberts 0:9c052ff8dd6a 162 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_1_300_BW_1_2; // 1.3
Wayne Roberts 0:9c052ff8dd6a 163 break;
Wayne Roberts 0:9c052ff8dd6a 164 case 3:
Wayne Roberts 0:9c052ff8dd6a 165 bps = 0.8e6;
Wayne Roberts 0:9c052ff8dd6a 166 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_1_000_BW_1_2; // 1.04
Wayne Roberts 0:9c052ff8dd6a 167 break;
Wayne Roberts 0:9c052ff8dd6a 168 case 4:
Wayne Roberts 0:9c052ff8dd6a 169 bps = 0.5e6;
Wayne Roberts 0:9c052ff8dd6a 170 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_650_BW_0_6; // 0.65
Wayne Roberts 0:9c052ff8dd6a 171 break;
Wayne Roberts 0:9c052ff8dd6a 172 case 5:
Wayne Roberts 0:9c052ff8dd6a 173 bps = 0.4e6;
Wayne Roberts 0:9c052ff8dd6a 174 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_520_BW_0_6; // 0.52
Wayne Roberts 0:9c052ff8dd6a 175 break;
Wayne Roberts 0:9c052ff8dd6a 176 case 6:
Wayne Roberts 0:9c052ff8dd6a 177 bps = 0.25e6;
Wayne Roberts 0:9c052ff8dd6a 178 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_325_BW_0_3; // 0.325
Wayne Roberts 0:9c052ff8dd6a 179 break;
Wayne Roberts 0:9c052ff8dd6a 180 case 7:
Wayne Roberts 0:9c052ff8dd6a 181 bps = 0.125e6;
Wayne Roberts 0:9c052ff8dd6a 182 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_260_BW_0_3; // 0.26
Wayne Roberts 0:9c052ff8dd6a 183 break;
Wayne Roberts 0:9c052ff8dd6a 184 }
Wayne Roberts 0:9c052ff8dd6a 185
Wayne Roberts 0:9c052ff8dd6a 186 mi = (fdev_hz * 2.0) / bps;
Wayne Roberts 0:9c052ff8dd6a 187 if (mi > 0.35) {
Wayne Roberts 0:9c052ff8dd6a 188 mi -= 0.5;
Wayne Roberts 0:9c052ff8dd6a 189 mi /= 0.25;
Wayne Roberts 0:9c052ff8dd6a 190 mpBLE_GFSK.gfskBle.ModulationIndex = ((uint8_t)mi) + 1;
Wayne Roberts 0:9c052ff8dd6a 191 } else
Wayne Roberts 0:9c052ff8dd6a 192 mpBLE_GFSK.gfskBle.ModulationIndex = 0;
Wayne Roberts 0:9c052ff8dd6a 193
Wayne Roberts 0:9c052ff8dd6a 194 RegRxBw.octet = radio.readReg(REG_ADDR_RXBW, 1);
Wayne Roberts 0:9c052ff8dd6a 195
Wayne Roberts 0:9c052ff8dd6a 196 switch (RegRxBw.bits.bw) {
Wayne Roberts 0:9c052ff8dd6a 197 case 0:
Wayne Roberts 0:9c052ff8dd6a 198 if (FloraPreambleHi.bits.data_rate == 0)
Wayne Roberts 0:9c052ff8dd6a 199 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_2_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 200 if (FloraPreambleHi.bits.data_rate == 1)
Wayne Roberts 0:9c052ff8dd6a 201 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_600_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 202 if (FloraPreambleHi.bits.data_rate == 2)
Wayne Roberts 0:9c052ff8dd6a 203 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 204 if (FloraPreambleHi.bits.data_rate == 3)
Wayne Roberts 0:9c052ff8dd6a 205 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_800_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 206 break;
Wayne Roberts 0:9c052ff8dd6a 207 case 1:
Wayne Roberts 0:9c052ff8dd6a 208 if (FloraPreambleHi.bits.data_rate == 2)
Wayne Roberts 0:9c052ff8dd6a 209 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_000_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 210 if (FloraPreambleHi.bits.data_rate == 3)
Wayne Roberts 0:9c052ff8dd6a 211 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_800_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 212 if (FloraPreambleHi.bits.data_rate == 4)
Wayne Roberts 0:9c052ff8dd6a 213 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_500_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 214 if (FloraPreambleHi.bits.data_rate == 5)
Wayne Roberts 0:9c052ff8dd6a 215 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_400_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 216 break;
Wayne Roberts 0:9c052ff8dd6a 217 case 2:
Wayne Roberts 0:9c052ff8dd6a 218 if (FloraPreambleHi.bits.data_rate == 4)
Wayne Roberts 0:9c052ff8dd6a 219 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_500_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 220 if (FloraPreambleHi.bits.data_rate == 5)
Wayne Roberts 0:9c052ff8dd6a 221 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_400_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 222 if (FloraPreambleHi.bits.data_rate == 6)
Wayne Roberts 0:9c052ff8dd6a 223 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_250_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 224 break;
Wayne Roberts 0:9c052ff8dd6a 225 case 3:
Wayne Roberts 0:9c052ff8dd6a 226 if (FloraPreambleHi.bits.data_rate == 6)
Wayne Roberts 0:9c052ff8dd6a 227 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_250_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 228 if (FloraPreambleHi.bits.data_rate == 7)
Wayne Roberts 0:9c052ff8dd6a 229 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_125_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 230 break;
Wayne Roberts 0:9c052ff8dd6a 231 }
Wayne Roberts 0:9c052ff8dd6a 232 mpBLE_GFSK.gfskBle.bitrateBandwidth = reg8;
Wayne Roberts 0:9c052ff8dd6a 233 }
Wayne Roberts 0:9c052ff8dd6a 234
Wayne Roberts 0:9c052ff8dd6a 235 {
Wayne Roberts 0:9c052ff8dd6a 236 FskCfg_t FskCfg;
Wayne Roberts 0:9c052ff8dd6a 237 FskCfg.octet = radio.readReg(REG_ADDR_FSK_CFG, 1);
Wayne Roberts 0:9c052ff8dd6a 238 mpBLE_GFSK.gfskBle.ModulationShaping = FskCfg.bits.gf_bt << 4;
Wayne Roberts 0:9c052ff8dd6a 239 mpFLRC.flrc.ModulationShaping = mpBLE_GFSK.gfskBle.ModulationShaping;
Wayne Roberts 0:9c052ff8dd6a 240 }
Wayne Roberts 0:9c052ff8dd6a 241
Wayne Roberts 0:9c052ff8dd6a 242 {
Wayne Roberts 0:9c052ff8dd6a 243 PktBitStreamCtrl_t PktBitStreamCtrl;
Wayne Roberts 0:9c052ff8dd6a 244 PktBitStreamCtrl.octet = radio.readReg(REG_ADDR_PKT_BITSTREAM_CTRL, 1);
Wayne Roberts 0:9c052ff8dd6a 245 mpFLRC.flrc.CodingRate = PktBitStreamCtrl.octet & 0x06; // PktBitStreamCtrl.bits.flora_coding_rate
Wayne Roberts 0:9c052ff8dd6a 246 }
Wayne Roberts 0:9c052ff8dd6a 247
Wayne Roberts 0:9c052ff8dd6a 248 }
Wayne Roberts 0:9c052ff8dd6a 249
Wayne Roberts 0:9c052ff8dd6a 250 void Radio:: diox_top_half()
Wayne Roberts 0:9c052ff8dd6a 251 {
Wayne Roberts 0:9c052ff8dd6a 252 irqAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 253
Wayne Roberts 14:94993ae5b164 254 if (RadioEvents->DioPin_top_half)
Wayne Roberts 14:94993ae5b164 255 RadioEvents->DioPin_top_half();
Wayne Roberts 14:94993ae5b164 256
Wayne Roberts 0:9c052ff8dd6a 257 if (radio.chipMode == CHIPMODE_TX) {
Wayne Roberts 0:9c052ff8dd6a 258 /* TxDone handling requires low latency */
Wayne Roberts 0:9c052ff8dd6a 259 if (RadioEvents->TxDone_topHalf) {
Wayne Roberts 0:9c052ff8dd6a 260 RadioEvents->TxDone_topHalf();
Wayne Roberts 0:9c052ff8dd6a 261 }
Wayne Roberts 7:ba81f66e56d1 262 } else {
Wayne Roberts 7:ba81f66e56d1 263 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 264 RX_INDICATION = 0;
Wayne Roberts 7:ba81f66e56d1 265 #endif
Wayne Roberts 0:9c052ff8dd6a 266 }
Wayne Roberts 0:9c052ff8dd6a 267 }
Wayne Roberts 0:9c052ff8dd6a 268
Wayne Roberts 0:9c052ff8dd6a 269 void Radio::rxDone(uint8_t size, const pktStatus_t* pktStatus)
Wayne Roberts 0:9c052ff8dd6a 270 {
Wayne Roberts 0:9c052ff8dd6a 271 float rssi, snr;
Wayne Roberts 0:9c052ff8dd6a 272
Wayne Roberts 0:9c052ff8dd6a 273 if (pktStatus->ble_gfsk_flrc.sync.syncAddrsCode == 0) {
Wayne Roberts 0:9c052ff8dd6a 274 int8_t s = pktStatus->lora.snr;
Wayne Roberts 0:9c052ff8dd6a 275 rssi = -pktStatus->lora.rssiSync / 2.0;
Wayne Roberts 0:9c052ff8dd6a 276 snr = s / 4.0;
Wayne Roberts 0:9c052ff8dd6a 277 } else {
Wayne Roberts 0:9c052ff8dd6a 278 rssi = -pktStatus->ble_gfsk_flrc.rssiSync / 2.0;
Wayne Roberts 0:9c052ff8dd6a 279 snr = FLT_MIN;
Wayne Roberts 0:9c052ff8dd6a 280 }
Wayne Roberts 0:9c052ff8dd6a 281
Wayne Roberts 0:9c052ff8dd6a 282 RadioEvents->RxDone(size, rssi, snr);
Wayne Roberts 0:9c052ff8dd6a 283 }
Wayne Roberts 0:9c052ff8dd6a 284
Wayne Roberts 0:9c052ff8dd6a 285 void Radio::timeout_callback(bool tx)
Wayne Roberts 0:9c052ff8dd6a 286 {
Wayne Roberts 0:9c052ff8dd6a 287 if (!tx) {
Wayne Roberts 0:9c052ff8dd6a 288 if (RadioEvents->RxTimeout)
Wayne Roberts 0:9c052ff8dd6a 289 RadioEvents->RxTimeout();
Wayne Roberts 7:ba81f66e56d1 290 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 291 RX_INDICATION = 0;
Wayne Roberts 7:ba81f66e56d1 292 #endif
Wayne Roberts 17:5f34cbe2ac53 293 } // else TODO tx timeout
Wayne Roberts 0:9c052ff8dd6a 294 }
Wayne Roberts 0:9c052ff8dd6a 295
Wayne Roberts 0:9c052ff8dd6a 296 void Radio::txDoneBottom()
Wayne Roberts 0:9c052ff8dd6a 297 {
Wayne Roberts 0:9c052ff8dd6a 298 if (RadioEvents->TxDone_botHalf)
Wayne Roberts 0:9c052ff8dd6a 299 RadioEvents->TxDone_botHalf();
Wayne Roberts 0:9c052ff8dd6a 300 }
Wayne Roberts 0:9c052ff8dd6a 301
Wayne Roberts 13:a354f82d12d9 302 void Radio::Init(const RadioEvents_t* e, unsigned spi_hz)
Wayne Roberts 0:9c052ff8dd6a 303 {
Wayne Roberts 0:9c052ff8dd6a 304 uint64_t sa;
Wayne Roberts 0:9c052ff8dd6a 305
Wayne Roberts 0:9c052ff8dd6a 306 radio.txDone = txDoneBottom;
Wayne Roberts 0:9c052ff8dd6a 307 radio.rxDone = rxDone;
Wayne Roberts 0:9c052ff8dd6a 308 radio.timeout = timeout_callback;
Wayne Roberts 0:9c052ff8dd6a 309 radio.chipModeChange = chipModeChange;
Wayne Roberts 0:9c052ff8dd6a 310 radio.diox_topHalf = diox_top_half;
Wayne Roberts 0:9c052ff8dd6a 311
Wayne Roberts 13:a354f82d12d9 312 spi.frequency(spi_hz);
Wayne Roberts 0:9c052ff8dd6a 313 readChip();
Wayne Roberts 0:9c052ff8dd6a 314
Wayne Roberts 0:9c052ff8dd6a 315 radio.setRegulator(0); // default to LDO
Wayne Roberts 0:9c052ff8dd6a 316
Wayne Roberts 0:9c052ff8dd6a 317 sa = 0xc194c1;
Wayne Roberts 0:9c052ff8dd6a 318 radio.setSyncAddr(1, sa);
Wayne Roberts 0:9c052ff8dd6a 319
Wayne Roberts 0:9c052ff8dd6a 320 RadioEvents = e;
Wayne Roberts 0:9c052ff8dd6a 321 lpt.start();
Wayne Roberts 0:9c052ff8dd6a 322
Wayne Roberts 0:9c052ff8dd6a 323 fe_enable = true;
Wayne Roberts 0:9c052ff8dd6a 324
Wayne Roberts 0:9c052ff8dd6a 325 radio.periodBase = 2; // 1ms resolution
Wayne Roberts 9:97a6de3dbc86 326 nSymbs = 8;
Wayne Roberts 0:9c052ff8dd6a 327 }
Wayne Roberts 0:9c052ff8dd6a 328
Wayne Roberts 7:ba81f66e56d1 329 float Radio::GetRssiInst()
Wayne Roberts 7:ba81f66e56d1 330 {
Wayne Roberts 7:ba81f66e56d1 331 uint8_t buf[2];
Wayne Roberts 7:ba81f66e56d1 332 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 7:ba81f66e56d1 333 return buf[1] / -2.0;
Wayne Roberts 7:ba81f66e56d1 334 }
Wayne Roberts 7:ba81f66e56d1 335
Wayne Roberts 0:9c052ff8dd6a 336 int Radio::Send(uint8_t size, timestamp_t maxListenTime, timestamp_t channelFreeTime, int rssiThresh)
Wayne Roberts 0:9c052ff8dd6a 337 {
Wayne Roberts 0:9c052ff8dd6a 338 uint8_t buf[8];
Wayne Roberts 1:e79b0a55135f 339 uint8_t pktType = radio.getPacketType();
Wayne Roberts 0:9c052ff8dd6a 340
Wayne Roberts 1:e79b0a55135f 341 if (pktType == PACKET_TYPE_LORA) {
Wayne Roberts 1:e79b0a55135f 342 ppLORA.lora.PayloadLength = size;
Wayne Roberts 1:e79b0a55135f 343 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 1:e79b0a55135f 344 } else if (pktType == PACKET_TYPE_GFSK) {
Wayne Roberts 0:9c052ff8dd6a 345 ppGFSK.gfskFLRC.PayloadLength = size;
Wayne Roberts 0:9c052ff8dd6a 346 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 347 }
Wayne Roberts 0:9c052ff8dd6a 348
Wayne Roberts 0:9c052ff8dd6a 349 if (maxListenTime > 0) {
Wayne Roberts 0:9c052ff8dd6a 350 int rssi;
Wayne Roberts 0:9c052ff8dd6a 351 us_timestamp_t startAt, chFreeAt, now;
Wayne Roberts 0:9c052ff8dd6a 352 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 353 startAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 354 Lstart:
Wayne Roberts 0:9c052ff8dd6a 355 do {
Wayne Roberts 0:9c052ff8dd6a 356 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 357 if ((now - startAt) > maxListenTime) {
Wayne Roberts 0:9c052ff8dd6a 358 return -1;
Wayne Roberts 0:9c052ff8dd6a 359 }
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 } while (rssi > rssiThresh);
Wayne Roberts 0:9c052ff8dd6a 363 chFreeAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 364 do {
Wayne Roberts 0:9c052ff8dd6a 365 now = lpt.read_us();
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 if (rssi > rssiThresh) {
Wayne Roberts 0:9c052ff8dd6a 369 goto Lstart;
Wayne Roberts 0:9c052ff8dd6a 370 }
Wayne Roberts 0:9c052ff8dd6a 371 } while ((now - chFreeAt) < channelFreeTime);
Wayne Roberts 0:9c052ff8dd6a 372 }
Wayne Roberts 0:9c052ff8dd6a 373
Wayne Roberts 0:9c052ff8dd6a 374 radio.start_tx(size, 4000);
Wayne Roberts 0:9c052ff8dd6a 375
Wayne Roberts 0:9c052ff8dd6a 376 return 0;
Wayne Roberts 0:9c052ff8dd6a 377 }
Wayne Roberts 0:9c052ff8dd6a 378
Wayne Roberts 0:9c052ff8dd6a 379 void Radio::service()
Wayne Roberts 0:9c052ff8dd6a 380 {
Wayne Roberts 0:9c052ff8dd6a 381 radio.service();
Wayne Roberts 0:9c052ff8dd6a 382 }
Wayne Roberts 0:9c052ff8dd6a 383
Wayne Roberts 0:9c052ff8dd6a 384 bool Radio::CheckRfFrequency(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 385 {
Wayne Roberts 0:9c052ff8dd6a 386 return true;
Wayne Roberts 0:9c052ff8dd6a 387 }
Wayne Roberts 0:9c052ff8dd6a 388
Wayne Roberts 0:9c052ff8dd6a 389 void Radio::Sleep()
Wayne Roberts 0:9c052ff8dd6a 390 {
Wayne Roberts 0:9c052ff8dd6a 391 radio.setSleep(true);
Wayne Roberts 0:9c052ff8dd6a 392 }
Wayne Roberts 0:9c052ff8dd6a 393
Wayne Roberts 0:9c052ff8dd6a 394 void Radio::SetPublicNetwork(bool en)
Wayne Roberts 0:9c052ff8dd6a 395 {
Wayne Roberts 8:0518c6e68b79 396 /* uint16_t ppg;
Wayne Roberts 0:9c052ff8dd6a 397
Wayne Roberts 0:9c052ff8dd6a 398 if (en)
Wayne Roberts 0:9c052ff8dd6a 399 ppg = 0x3444;
Wayne Roberts 0:9c052ff8dd6a 400 else
Wayne Roberts 0:9c052ff8dd6a 401 ppg = 0x1424;
Wayne Roberts 0:9c052ff8dd6a 402
Wayne Roberts 0:9c052ff8dd6a 403 radio.writeReg(REG_ADDR_LORA_SYNC, ppg, 2);
Wayne Roberts 8:0518c6e68b79 404 */
Wayne Roberts 0:9c052ff8dd6a 405 }
Wayne Roberts 0:9c052ff8dd6a 406
Wayne Roberts 0:9c052ff8dd6a 407 uint32_t Radio::lora_toa_us( uint8_t pktLen )
Wayne Roberts 0:9c052ff8dd6a 408 {
Wayne Roberts 0:9c052ff8dd6a 409 double bwKHz;
Wayne Roberts 0:9c052ff8dd6a 410 LoRaPktPar0_t LoRaPktPar0;
Wayne Roberts 0:9c052ff8dd6a 411 LoRaLrCtl_t LoRaLrCtl;
Wayne Roberts 0:9c052ff8dd6a 412 LoRaPktPar1_t LoRaPktPar1;
Wayne Roberts 0:9c052ff8dd6a 413 uint8_t LowDatarateOptimize;
Wayne Roberts 0:9c052ff8dd6a 414
Wayne Roberts 0:9c052ff8dd6a 415 {
Wayne Roberts 0:9c052ff8dd6a 416 LoRaPktPar1.octet = radio.readReg(REG_ADDR_LORA_PKTPAR1, 1);
Wayne Roberts 0:9c052ff8dd6a 417 LowDatarateOptimize = LoRaPktPar1.bits.ppm_offset ? 1 : 0;
Wayne Roberts 1:e79b0a55135f 418 ppLORA.lora.HeaderType = LoRaPktPar1.bits.implicit_header ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 1:e79b0a55135f 419 ppLORA.lora.InvertIQ = LoRaPktPar1.octet & LORA_IQ_STD; // LoRaPktPar1.bits.rxinvert_iq
Wayne Roberts 0:9c052ff8dd6a 420 mpLORA.lora.codingRate = LoRaPktPar1.bits.coding_rate;
Wayne Roberts 0:9c052ff8dd6a 421 }
Wayne Roberts 0:9c052ff8dd6a 422
Wayne Roberts 0:9c052ff8dd6a 423 {
Wayne Roberts 0:9c052ff8dd6a 424 LoRaLrCtl.octet = radio.readReg(REG_ADDR_LORA_LRCTL, 1);
Wayne Roberts 0:9c052ff8dd6a 425 ppLORA.lora.crc = LoRaLrCtl.octet & 0x20; // LoRaLrCtl.bits.crc_en
Wayne Roberts 0:9c052ff8dd6a 426 }
Wayne Roberts 0:9c052ff8dd6a 427
Wayne Roberts 0:9c052ff8dd6a 428 {
Wayne Roberts 0:9c052ff8dd6a 429 LoRaPreambleReg_t LoRaPreambleReg;
Wayne Roberts 0:9c052ff8dd6a 430 LoRaPreambleReg.octet = radio.readReg(REG_ADDR_LORA_PREAMBLE, 1);
Wayne Roberts 0:9c052ff8dd6a 431 ppLORA.lora.PreambleLength = LoRaPreambleReg.bits.preamble_symb1_nb * (1 << LoRaPreambleReg.bits.preamble_symb_nb_exp);
Wayne Roberts 0:9c052ff8dd6a 432 }
Wayne Roberts 0:9c052ff8dd6a 433
Wayne Roberts 0:9c052ff8dd6a 434 {
Wayne Roberts 0:9c052ff8dd6a 435 LoRaPktPar0.octet = radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:9c052ff8dd6a 436 switch (LoRaPktPar0.bits.modem_bw) {
Wayne Roberts 0:9c052ff8dd6a 437 case 0: bwKHz = 50; break;
Wayne Roberts 0:9c052ff8dd6a 438 case 1: bwKHz = 100; break;
Wayne Roberts 0:9c052ff8dd6a 439 case 2: mpLORA.lora.bandwidth = LORA_BW_200; bwKHz = 200; break;
Wayne Roberts 0:9c052ff8dd6a 440 case 3: mpLORA.lora.bandwidth = LORA_BW_400; bwKHz = 400; break;
Wayne Roberts 0:9c052ff8dd6a 441 case 4: mpLORA.lora.bandwidth = LORA_BW_800; bwKHz = 800; break;
Wayne Roberts 0:9c052ff8dd6a 442 case 5: mpLORA.lora.bandwidth = LORA_BW_1600; bwKHz = 1600; break;
Wayne Roberts 0:9c052ff8dd6a 443 default: bwKHz = 0; break;
Wayne Roberts 0:9c052ff8dd6a 444 }
Wayne Roberts 0:9c052ff8dd6a 445 mpLORA.lora.spreadingFactor = LoRaPktPar0.bits.modem_sf << 4;
Wayne Roberts 0:9c052ff8dd6a 446 }
Wayne Roberts 0:9c052ff8dd6a 447
Wayne Roberts 0:9c052ff8dd6a 448 // Symbol rate : time for one symbol (secs)
Wayne Roberts 0:9c052ff8dd6a 449 double rs = bwKHz / (1 << LoRaPktPar0.bits.modem_sf);
Wayne Roberts 0:9c052ff8dd6a 450 double ts = 1 / rs;
Wayne Roberts 0:9c052ff8dd6a 451 // time of preamble
Wayne Roberts 0:9c052ff8dd6a 452 //
Wayne Roberts 0:9c052ff8dd6a 453 double tPreamble = ( ppLORA.lora.PreambleLength + 4.25 ) * ts;
Wayne Roberts 0:9c052ff8dd6a 454 // Symbol length of payload and time
Wayne Roberts 0:9c052ff8dd6a 455
Wayne Roberts 0:9c052ff8dd6a 456 double tmp = ceil( ( 8 * pktLen - 4 * LoRaPktPar0.bits.modem_sf +
Wayne Roberts 0:9c052ff8dd6a 457 28 + 16 * LoRaLrCtl.bits.crc_en -
Wayne Roberts 0:9c052ff8dd6a 458 ( LoRaPktPar1.bits.implicit_header ? 20 : 0 ) ) /
Wayne Roberts 0:9c052ff8dd6a 459 ( double )( 4 * ( LoRaPktPar0.bits.modem_sf -
Wayne Roberts 0:9c052ff8dd6a 460 ( ( LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) *
Wayne Roberts 0:9c052ff8dd6a 461 ( LoRaPktPar1.bits.coding_rate + 4 );
Wayne Roberts 0:9c052ff8dd6a 462
Wayne Roberts 0:9c052ff8dd6a 463 double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 );
Wayne Roberts 0:9c052ff8dd6a 464 double tPayload = nPayload * ts;
Wayne Roberts 0:9c052ff8dd6a 465 // Time on air
Wayne Roberts 0:9c052ff8dd6a 466 double tOnAir = tPreamble + tPayload;
Wayne Roberts 0:9c052ff8dd6a 467 // return microseconds
Wayne Roberts 0:9c052ff8dd6a 468 return floor( tOnAir * 1000 + 0.999 );
Wayne Roberts 0:9c052ff8dd6a 469 }
Wayne Roberts 0:9c052ff8dd6a 470
Wayne Roberts 0:9c052ff8dd6a 471 void Radio::GFSKModemConfig(unsigned bps, unsigned bw_hz, unsigned fdev_hz)
Wayne Roberts 0:9c052ff8dd6a 472 {
Wayne Roberts 0:9c052ff8dd6a 473 uint8_t u8;
Wayne Roberts 0:9c052ff8dd6a 474 float mi, Mbps = bps / 1000000.0;
Wayne Roberts 0:9c052ff8dd6a 475
Wayne Roberts 0:9c052ff8dd6a 476 if (Mbps > 1.6) {
Wayne Roberts 0:9c052ff8dd6a 477 /* 2.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 478 u8 = GFSK_BLE_BR_2_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 479 } else if (Mbps > 1.0) {
Wayne Roberts 0:9c052ff8dd6a 480 /* 1.6Mbps */
Wayne Roberts 0:9c052ff8dd6a 481 u8 = GFSK_BLE_BR_1_600_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 482 } else if (Mbps > 0.8) {
Wayne Roberts 0:9c052ff8dd6a 483 /* 1.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 484 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 485 u8 = GFSK_BLE_BR_1_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 486 else*/
Wayne Roberts 0:9c052ff8dd6a 487 u8 = GFSK_BLE_BR_1_000_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 488 } else if (Mbps > 0.5) {
Wayne Roberts 0:9c052ff8dd6a 489 /* 0.8Mbps */
Wayne Roberts 0:9c052ff8dd6a 490 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 491 u8 = GFSK_BLE_BR_0_800_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 492 else*/
Wayne Roberts 0:9c052ff8dd6a 493 u8 = GFSK_BLE_BR_0_800_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 494 } else if (Mbps > 0.4) {
Wayne Roberts 0:9c052ff8dd6a 495 /* 0.5Mbps */
Wayne Roberts 0:9c052ff8dd6a 496 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 497 u8 = GFSK_BLE_BR_0_500_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 498 else*/
Wayne Roberts 0:9c052ff8dd6a 499 u8 = GFSK_BLE_BR_0_500_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 500 } else if (Mbps > 0.25) {
Wayne Roberts 0:9c052ff8dd6a 501 /* 0.4Mbps */
Wayne Roberts 0:9c052ff8dd6a 502 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 503 u8 = GFSK_BLE_BR_0_400_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 504 else*/
Wayne Roberts 0:9c052ff8dd6a 505 u8 = GFSK_BLE_BR_0_400_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 506 } else if (Mbps > 0.125) {
Wayne Roberts 0:9c052ff8dd6a 507 /* 0.25Mbps */
Wayne Roberts 0:9c052ff8dd6a 508 /*if (bwMHz > 0.3)
Wayne Roberts 0:9c052ff8dd6a 509 u8 = GFSK_BLE_BR_0_250_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 510 else*/
Wayne Roberts 0:9c052ff8dd6a 511 u8 = GFSK_BLE_BR_0_250_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 512 } else {
Wayne Roberts 0:9c052ff8dd6a 513 /* 0.125Mbps */
Wayne Roberts 0:9c052ff8dd6a 514 u8 = GFSK_BLE_BR_0_125_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 515 }
Wayne Roberts 0:9c052ff8dd6a 516
Wayne Roberts 0:9c052ff8dd6a 517 mpBLE_GFSK.gfskBle.bitrateBandwidth = u8;
Wayne Roberts 0:9c052ff8dd6a 518
Wayne Roberts 0:9c052ff8dd6a 519 mpBLE_GFSK.gfskBle.ModulationShaping = BT_OFF;
Wayne Roberts 0:9c052ff8dd6a 520
Wayne Roberts 0:9c052ff8dd6a 521 mi = (fdev_hz * 2.0) / bps;
Wayne Roberts 0:9c052ff8dd6a 522 if (mi > 0.35) {
Wayne Roberts 0:9c052ff8dd6a 523 mi -= 0.5;
Wayne Roberts 0:9c052ff8dd6a 524 mi /= 0.25;
Wayne Roberts 0:9c052ff8dd6a 525 mpBLE_GFSK.gfskBle.ModulationIndex = ((uint8_t)mi) + 1;
Wayne Roberts 0:9c052ff8dd6a 526 } else
Wayne Roberts 0:9c052ff8dd6a 527 mpBLE_GFSK.gfskBle.ModulationIndex = 0;
Wayne Roberts 0:9c052ff8dd6a 528
Wayne Roberts 0:9c052ff8dd6a 529 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpBLE_GFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 530 }
Wayne Roberts 0:9c052ff8dd6a 531
Wayne Roberts 0:9c052ff8dd6a 532 void Radio::GFSKPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn)
Wayne Roberts 0:9c052ff8dd6a 533 {
Wayne Roberts 0:9c052ff8dd6a 534 ppGFSK.gfskFLRC.PreambleLength = (preambleLen - 4) / 4;
Wayne Roberts 0:9c052ff8dd6a 535 ppGFSK.gfskFLRC.PreambleLength <<= 4;
Wayne Roberts 0:9c052ff8dd6a 536 ppGFSK.gfskFLRC.SyncWordLength = (3 - 1) << 1; // 3 byte 0xc194c1
Wayne Roberts 0:9c052ff8dd6a 537 ppGFSK.gfskFLRC.HeaderType = fixLen ? RADIO_PACKET_FIXED_LENGTH : RADIO_PACKET_VARIABLE_LENGTH;
Wayne Roberts 0:9c052ff8dd6a 538 ppGFSK.gfskFLRC.CRCLength = crcOn ? RADIO_CRC_2_BYTES : RADIO_CRC_OFF;
Wayne Roberts 0:9c052ff8dd6a 539
Wayne Roberts 0:9c052ff8dd6a 540 // TODO ppGFSK.gfskFLRC.PayloadLength = ;
Wayne Roberts 0:9c052ff8dd6a 541
Wayne Roberts 0:9c052ff8dd6a 542 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 543 }
Wayne Roberts 0:9c052ff8dd6a 544
Wayne Roberts 13:a354f82d12d9 545 void Radio::SetLoRaSymbolTimeout(uint16_t symbs)
Wayne Roberts 0:9c052ff8dd6a 546 {
Wayne Roberts 9:97a6de3dbc86 547 nSymbs = symbs;
Wayne Roberts 9:97a6de3dbc86 548 rxTimeoutMs = nSymbs * (symbolPeriodUs / 1000.0);
Wayne Roberts 0:9c052ff8dd6a 549 }
Wayne Roberts 0:9c052ff8dd6a 550
Wayne Roberts 0:9c052ff8dd6a 551 void Radio::LoRaModemConfig(unsigned bwKHz, uint8_t sf, uint8_t cr)
Wayne Roberts 0:9c052ff8dd6a 552 {
Wayne Roberts 1:e79b0a55135f 553 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 554 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 555
Wayne Roberts 12:fcfafd17ae1b 556 if (bwKHz > 800)
Wayne Roberts 0:9c052ff8dd6a 557 mpLORA.lora.bandwidth = LORA_BW_1600;
Wayne Roberts 12:fcfafd17ae1b 558 else if (bwKHz > 400)
Wayne Roberts 0:9c052ff8dd6a 559 mpLORA.lora.bandwidth = LORA_BW_800;
Wayne Roberts 12:fcfafd17ae1b 560 else if (bwKHz > 200)
Wayne Roberts 0:9c052ff8dd6a 561 mpLORA.lora.bandwidth = LORA_BW_400;
Wayne Roberts 12:fcfafd17ae1b 562 else if (bwKHz > 100)
Wayne Roberts 0:9c052ff8dd6a 563 mpLORA.lora.bandwidth = LORA_BW_200;
Wayne Roberts 12:fcfafd17ae1b 564 else if (bwKHz > 50)
Wayne Roberts 12:fcfafd17ae1b 565 mpLORA.lora.bandwidth = LORA_BW_100;
Wayne Roberts 12:fcfafd17ae1b 566 else
Wayne Roberts 12:fcfafd17ae1b 567 mpLORA.lora.bandwidth = LORA_BW_50;
Wayne Roberts 0:9c052ff8dd6a 568
Wayne Roberts 0:9c052ff8dd6a 569 mpLORA.lora.codingRate = cr;
Wayne Roberts 0:9c052ff8dd6a 570
Wayne Roberts 0:9c052ff8dd6a 571 mpLORA.lora.spreadingFactor = sf << 4;
Wayne Roberts 0:9c052ff8dd6a 572
Wayne Roberts 0:9c052ff8dd6a 573 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpLORA.buf);
Wayne Roberts 9:97a6de3dbc86 574
Wayne Roberts 9:97a6de3dbc86 575 symbolPeriodUs = (1 << sf) / (bwKHz / 1000.0); // bw in MHz gives microseconds
Wayne Roberts 9:97a6de3dbc86 576 rxTimeoutMs = nSymbs * (symbolPeriodUs / 1000.0);
Wayne Roberts 0:9c052ff8dd6a 577 }
Wayne Roberts 0:9c052ff8dd6a 578
Wayne Roberts 0:9c052ff8dd6a 579 void Radio::LoRaPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn, bool invIQ)
Wayne Roberts 0:9c052ff8dd6a 580 {
Wayne Roberts 1:e79b0a55135f 581 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 582 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 583
Wayne Roberts 0:9c052ff8dd6a 584 ppLORA.lora.PreambleLength = preambleLen;
Wayne Roberts 0:9c052ff8dd6a 585 ppLORA.lora.HeaderType = fixLen ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 0:9c052ff8dd6a 586 ppLORA.lora.crc = crcOn ? LORA_CRC_ENABLE : LORA_CRC_DISABLE;
Wayne Roberts 0:9c052ff8dd6a 587 ppLORA.lora.InvertIQ = invIQ ? LORA_IQ_INVERTED : LORA_IQ_STD;
Wayne Roberts 0:9c052ff8dd6a 588
Wayne Roberts 0:9c052ff8dd6a 589 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 0:9c052ff8dd6a 590 }
Wayne Roberts 0:9c052ff8dd6a 591
Wayne Roberts 0:9c052ff8dd6a 592 void Radio::SetChannel(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 593 {
Wayne Roberts 0:9c052ff8dd6a 594 radio.setMHz(hz / 1000000.0);
Wayne Roberts 0:9c052ff8dd6a 595 }
Wayne Roberts 0:9c052ff8dd6a 596
Wayne Roberts 0:9c052ff8dd6a 597 uint32_t Radio::Random(void)
Wayne Roberts 0:9c052ff8dd6a 598 {
Wayne Roberts 0:9c052ff8dd6a 599 uint8_t buf[2];
Wayne Roberts 0:9c052ff8dd6a 600 uint32_t ret = 0;
Wayne Roberts 0:9c052ff8dd6a 601 unsigned n;
Wayne Roberts 0:9c052ff8dd6a 602
Wayne Roberts 0:9c052ff8dd6a 603 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 604
Wayne Roberts 0:9c052ff8dd6a 605 for (n = 0; n < 8; n++) {
Wayne Roberts 0:9c052ff8dd6a 606 uint32_t r, s;
Wayne Roberts 0:9c052ff8dd6a 607 wait_us(5000);
Wayne Roberts 0:9c052ff8dd6a 608 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 609 r = buf[1];
Wayne Roberts 0:9c052ff8dd6a 610 s = n * 4;
Wayne Roberts 0:9c052ff8dd6a 611 r <<= s;
Wayne Roberts 0:9c052ff8dd6a 612 ret ^= r;
Wayne Roberts 0:9c052ff8dd6a 613 }
Wayne Roberts 0:9c052ff8dd6a 614
Wayne Roberts 0:9c052ff8dd6a 615 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 616
Wayne Roberts 0:9c052ff8dd6a 617 return ret;
Wayne Roberts 0:9c052ff8dd6a 618 }
Wayne Roberts 0:9c052ff8dd6a 619
Wayne Roberts 0:9c052ff8dd6a 620 void Radio::Rx(unsigned timeout)
Wayne Roberts 0:9c052ff8dd6a 621 {
Wayne Roberts 7:ba81f66e56d1 622 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 623 RX_INDICATION = 1;
Wayne Roberts 7:ba81f66e56d1 624 #endif
Wayne Roberts 9:97a6de3dbc86 625 if (timeout == 0)
Wayne Roberts 9:97a6de3dbc86 626 radio.start_rx(0); // continuous rx
Wayne Roberts 9:97a6de3dbc86 627 else {
Wayne Roberts 9:97a6de3dbc86 628 radio.start_rx(rxTimeoutMs);
Wayne Roberts 9:97a6de3dbc86 629 }
Wayne Roberts 0:9c052ff8dd6a 630 }
Wayne Roberts 0:9c052ff8dd6a 631
Wayne Roberts 0:9c052ff8dd6a 632 void Radio::Standby()
Wayne Roberts 0:9c052ff8dd6a 633 {
Wayne Roberts 0:9c052ff8dd6a 634 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 635 }
Wayne Roberts 0:9c052ff8dd6a 636
Wayne Roberts 13:a354f82d12d9 637 #define TX_PWR_OFFSET 18
Wayne Roberts 0:9c052ff8dd6a 638 void Radio::set_tx_dbm(int8_t dbm)
Wayne Roberts 0:9c052ff8dd6a 639 {
Wayne Roberts 5:ab124d3842a8 640 if (dbm == PA_OFF_DBM) {
Wayne Roberts 5:ab124d3842a8 641 /* TODO: shut off PA */
Wayne Roberts 13:a354f82d12d9 642 radio.set_tx_dbm(0);
Wayne Roberts 5:ab124d3842a8 643 } else {
Wayne Roberts 13:a354f82d12d9 644 /* power range -18dBm to +13dBm */
Wayne Roberts 13:a354f82d12d9 645 radio.set_tx_dbm(dbm + TX_PWR_OFFSET);
Wayne Roberts 5:ab124d3842a8 646 }
Wayne Roberts 0:9c052ff8dd6a 647 }
Wayne Roberts 0:9c052ff8dd6a 648
Wayne Roberts 0:9c052ff8dd6a 649 void Radio::SetTxContinuousWave(unsigned hz, int8_t dbm, unsigned timeout_us)
Wayne Roberts 0:9c052ff8dd6a 650 {
Wayne Roberts 0:9c052ff8dd6a 651 SetChannel(hz);
Wayne Roberts 0:9c052ff8dd6a 652 radio.set_tx_dbm(dbm);
Wayne Roberts 0:9c052ff8dd6a 653 radio.xfer(OPCODE_SET_TX_CARRIER, 0, 0, NULL);
Wayne Roberts 0:9c052ff8dd6a 654 }
Wayne Roberts 0:9c052ff8dd6a 655
Wayne Roberts 1:e79b0a55135f 656 void Radio::SetRxMaxPayloadLength(uint8_t max)
Wayne Roberts 0:9c052ff8dd6a 657 {
Wayne Roberts 1:e79b0a55135f 658 uint8_t pktType = radio.getPacketType();
Wayne Roberts 1:e79b0a55135f 659
Wayne Roberts 1:e79b0a55135f 660 if (pktType == PACKET_TYPE_GFSK)
Wayne Roberts 0:9c052ff8dd6a 661 ppGFSK.gfskFLRC.PayloadLength = max;
Wayne Roberts 1:e79b0a55135f 662 else if (pktType == PACKET_TYPE_LORA)
Wayne Roberts 0:9c052ff8dd6a 663 ppLORA.lora.PayloadLength = max;
Wayne Roberts 0:9c052ff8dd6a 664 }
Wayne Roberts 0:9c052ff8dd6a 665
Wayne Roberts 0:9c052ff8dd6a 666 #endif /* ..SX126x_H */