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_sx128x.cpp@9:97a6de3dbc86, 2018-12-07 (annotated)

Committer:
Wayne Roberts
Date:
Fri Dec 07 17:13:39 2018 -0800
Revision:
9:97a6de3dbc86
Parent:
8:0518c6e68b79
Child:
12:fcfafd17ae1b
Child:
14:94993ae5b164
add sx1280 symbol timeout

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 0:9c052ff8dd6a 46
Wayne Roberts 0:9c052ff8dd6a 47 LowPowerTimer Radio::lpt;
Wayne Roberts 0:9c052ff8dd6a 48
Wayne Roberts 0:9c052ff8dd6a 49 PacketParams_t Radio::ppGFSK;
Wayne Roberts 0:9c052ff8dd6a 50 PacketParams_t Radio::ppLORA;
Wayne Roberts 0:9c052ff8dd6a 51 PacketParams_t Radio::ppFLRC;
Wayne Roberts 0:9c052ff8dd6a 52
Wayne Roberts 0:9c052ff8dd6a 53 ModulationParams_t Radio::mpBLE_GFSK;
Wayne Roberts 0:9c052ff8dd6a 54 ModulationParams_t Radio::mpFLRC;
Wayne Roberts 0:9c052ff8dd6a 55 ModulationParams_t Radio::mpLORA;
Wayne Roberts 0:9c052ff8dd6a 56
Wayne Roberts 0:9c052ff8dd6a 57 const RadioEvents_t* RadioEvents;
Wayne Roberts 0:9c052ff8dd6a 58 volatile us_timestamp_t Radio::irqAt;
Wayne Roberts 0:9c052ff8dd6a 59
Wayne Roberts 9:97a6de3dbc86 60 unsigned Radio::symbolPeriodUs;
Wayne Roberts 9:97a6de3dbc86 61 unsigned Radio::nSymbs;
Wayne Roberts 9:97a6de3dbc86 62 unsigned Radio::rxTimeoutMs;
Wayne Roberts 9:97a6de3dbc86 63
Wayne Roberts 0:9c052ff8dd6a 64 void Radio::readChip()
Wayne Roberts 0:9c052ff8dd6a 65 {
Wayne Roberts 0:9c052ff8dd6a 66 uint8_t reg8;
Wayne Roberts 0:9c052ff8dd6a 67
Wayne Roberts 0:9c052ff8dd6a 68 reg8 = radio.readReg(REG_ADDR_PKTCTRL0, 1);
Wayne Roberts 0:9c052ff8dd6a 69 ppGFSK.gfskFLRC.HeaderType = reg8 & 0x20;
Wayne Roberts 0:9c052ff8dd6a 70 ppFLRC.gfskFLRC.HeaderType = reg8 & 0x20;
Wayne Roberts 0:9c052ff8dd6a 71
Wayne Roberts 0:9c052ff8dd6a 72 reg8 = radio.readReg(REG_ADDR_PKTCTRL1, 1);
Wayne Roberts 0:9c052ff8dd6a 73 ppGFSK.gfskFLRC.PreambleLength = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 74 ppFLRC.gfskFLRC.PreambleLength = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 75 ppGFSK.gfskFLRC.SyncWordLength = reg8 & 0x0e;
Wayne Roberts 0:9c052ff8dd6a 76 ppFLRC.gfskFLRC.SyncWordLength = reg8 & 0x06;
Wayne Roberts 0:9c052ff8dd6a 77 if (ppFLRC.gfskFLRC.SyncWordLength == 0x06)
Wayne Roberts 0:9c052ff8dd6a 78 ppFLRC.gfskFLRC.SyncWordLength = FLRC_SYNC_WORD_LEN_P32S;
Wayne Roberts 0:9c052ff8dd6a 79
Wayne Roberts 0:9c052ff8dd6a 80 reg8 = radio.readReg(REG_ADDR_PKT_SYNC_ADRS_CTRL, 1);
Wayne Roberts 0:9c052ff8dd6a 81 ppGFSK.gfskFLRC.SyncWordMatch = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 82 ppFLRC.gfskFLRC.SyncWordMatch = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 83
Wayne Roberts 0:9c052ff8dd6a 84 reg8 = radio.readReg(REG_ADDR_PAYLOAD_LEN, 1);
Wayne Roberts 0:9c052ff8dd6a 85 ppGFSK.gfskFLRC.PayloadLength = reg8;
Wayne Roberts 0:9c052ff8dd6a 86 ppFLRC.gfskFLRC.PayloadLength = reg8;
Wayne Roberts 0:9c052ff8dd6a 87
Wayne Roberts 0:9c052ff8dd6a 88 reg8 = radio.readReg(REG_ADDR_PKT_TX_HEADER, 1); // TODO hi bit of payload length
Wayne Roberts 0:9c052ff8dd6a 89 //ppBLE.ble.ConnectionState = reg8 & 0xe0;
Wayne Roberts 0:9c052ff8dd6a 90 //ppBLE.ble.BleTestPayload = reg8 & 0x1c;
Wayne Roberts 0:9c052ff8dd6a 91
Wayne Roberts 0:9c052ff8dd6a 92 reg8 = radio.readReg(REG_ADDR_PKT_BITSTREAM_CTRL, 1);
Wayne Roberts 0:9c052ff8dd6a 93 //ppBLE.ble.CrcLength = reg8 & 0x30;
Wayne Roberts 0:9c052ff8dd6a 94 //ppBLE.ble.Whitening = reg8 & 0x08;
Wayne Roberts 0:9c052ff8dd6a 95 ppGFSK.gfskFLRC.CRCLength = reg8 & 0x30;
Wayne Roberts 0:9c052ff8dd6a 96 ppFLRC.gfskFLRC.CRCLength = reg8 & 0x30;
Wayne Roberts 0:9c052ff8dd6a 97 ppGFSK.gfskFLRC.Whitening = reg8 & 0x08;
Wayne Roberts 0:9c052ff8dd6a 98 ppFLRC.gfskFLRC.Whitening = reg8 & 0x08;
Wayne Roberts 0:9c052ff8dd6a 99
Wayne Roberts 0:9c052ff8dd6a 100 {
Wayne Roberts 0:9c052ff8dd6a 101 LoRaPktPar0_t LoRaPktPar0;
Wayne Roberts 0:9c052ff8dd6a 102 LoRaPktPar0.octet = radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:9c052ff8dd6a 103 switch (LoRaPktPar0.bits.modem_bw) {
Wayne Roberts 0:9c052ff8dd6a 104 case 2: mpLORA.lora.bandwidth = LORA_BW_200; break;
Wayne Roberts 0:9c052ff8dd6a 105 case 3: mpLORA.lora.bandwidth = LORA_BW_400; break;
Wayne Roberts 0:9c052ff8dd6a 106 case 4: mpLORA.lora.bandwidth = LORA_BW_800; break;
Wayne Roberts 0:9c052ff8dd6a 107 case 5: mpLORA.lora.bandwidth = LORA_BW_1600; break;
Wayne Roberts 0:9c052ff8dd6a 108 }
Wayne Roberts 0:9c052ff8dd6a 109 mpLORA.lora.spreadingFactor = LoRaPktPar0.bits.modem_sf << 4;
Wayne Roberts 0:9c052ff8dd6a 110 }
Wayne Roberts 0:9c052ff8dd6a 111
Wayne Roberts 0:9c052ff8dd6a 112 {
Wayne Roberts 0:9c052ff8dd6a 113 LoRaPktPar1_t LoRaPktPar1;
Wayne Roberts 0:9c052ff8dd6a 114 LoRaPktPar1.octet = radio.readReg(REG_ADDR_LORA_PKTPAR1, 1);
Wayne Roberts 0:9c052ff8dd6a 115 mpLORA.lora.codingRate = LoRaPktPar1.bits.coding_rate;
Wayne Roberts 1:e79b0a55135f 116 ppLORA.lora.InvertIQ = LoRaPktPar1.octet & LORA_IQ_STD; // LoRaPktPar1.bits.rxinvert_iq
Wayne Roberts 1:e79b0a55135f 117 ppLORA.lora.HeaderType = LoRaPktPar1.bits.implicit_header ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 0:9c052ff8dd6a 118 // LoRaPktPar1.bits.ppm_offset
Wayne Roberts 0:9c052ff8dd6a 119 }
Wayne Roberts 0:9c052ff8dd6a 120
Wayne Roberts 0:9c052ff8dd6a 121 {
Wayne Roberts 0:9c052ff8dd6a 122 LoRaPreambleReg_t LoRaPreambleReg;
Wayne Roberts 0:9c052ff8dd6a 123 LoRaPreambleReg.octet = radio.readReg(REG_ADDR_LORA_PREAMBLE, 1);
Wayne Roberts 0:9c052ff8dd6a 124 ppLORA.lora.PreambleLength = LoRaPreambleReg.bits.preamble_symb1_nb * (1 << LoRaPreambleReg.bits.preamble_symb_nb_exp);
Wayne Roberts 0:9c052ff8dd6a 125 }
Wayne Roberts 0:9c052ff8dd6a 126 ppLORA.lora.PayloadLength = radio.readReg(REG_ADDR_LORA_TX_PAYLOAD_LENGTH, 1);
Wayne Roberts 0:9c052ff8dd6a 127
Wayne Roberts 0:9c052ff8dd6a 128 {
Wayne Roberts 0:9c052ff8dd6a 129 LoRaLrCtl_t LoRaLrCtl;
Wayne Roberts 0:9c052ff8dd6a 130 LoRaLrCtl.octet = radio.readReg(REG_ADDR_LORA_LRCTL, 1);
Wayne Roberts 0:9c052ff8dd6a 131 ppLORA.lora.crc = LoRaLrCtl.octet & 0x20; // LoRaLrCtl.bits.crc_en
Wayne Roberts 0:9c052ff8dd6a 132 }
Wayne Roberts 0:9c052ff8dd6a 133
Wayne Roberts 0:9c052ff8dd6a 134 {
Wayne Roberts 0:9c052ff8dd6a 135 RegRxBw_t RegRxBw;
Wayne Roberts 0:9c052ff8dd6a 136 unsigned bps;
Wayne Roberts 0:9c052ff8dd6a 137 FloraPreambleHi_t FloraPreambleHi;
Wayne Roberts 0:9c052ff8dd6a 138 float mi, fdev_hz;
Wayne Roberts 0:9c052ff8dd6a 139 unsigned freqDev;
Wayne Roberts 0:9c052ff8dd6a 140 FskModDfH_t FskModDfH;
Wayne Roberts 0:9c052ff8dd6a 141 FskModDfH.octet = radio.readReg(REG_ADDR_FSK_MODDFH, 1);
Wayne Roberts 0:9c052ff8dd6a 142 freqDev = FskModDfH.bits.freqDev;
Wayne Roberts 0:9c052ff8dd6a 143 freqDev <<= 8;
Wayne Roberts 0:9c052ff8dd6a 144 freqDev |= radio.readReg(REG_ADDR_FSK_MODDFL, 1);
Wayne Roberts 0:9c052ff8dd6a 145 fdev_hz = freqDev * PLL_STEP_HZ;
Wayne Roberts 0:9c052ff8dd6a 146
Wayne Roberts 0:9c052ff8dd6a 147 FloraPreambleHi.octet = radio.readReg(REG_ADDR_FLORA_PREAMBLE_HI, 1);
Wayne Roberts 0:9c052ff8dd6a 148 switch (FloraPreambleHi.bits.data_rate) {
Wayne Roberts 0:9c052ff8dd6a 149 case 0:
Wayne Roberts 0:9c052ff8dd6a 150 bps = 2.0e6;
Wayne Roberts 0:9c052ff8dd6a 151 //mpFLRC.flrc.bitrateBandwidth = ??; // 2.6
Wayne Roberts 0:9c052ff8dd6a 152 break;
Wayne Roberts 0:9c052ff8dd6a 153 case 1:
Wayne Roberts 0:9c052ff8dd6a 154 bps = 1.6e6;
Wayne Roberts 0:9c052ff8dd6a 155 //mpFLRC.flrc.bitrateBandwidth = ??; // 2.08
Wayne Roberts 0:9c052ff8dd6a 156 break;
Wayne Roberts 0:9c052ff8dd6a 157 case 2:
Wayne Roberts 0:9c052ff8dd6a 158 bps = 1.0e6;
Wayne Roberts 0:9c052ff8dd6a 159 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_1_300_BW_1_2; // 1.3
Wayne Roberts 0:9c052ff8dd6a 160 break;
Wayne Roberts 0:9c052ff8dd6a 161 case 3:
Wayne Roberts 0:9c052ff8dd6a 162 bps = 0.8e6;
Wayne Roberts 0:9c052ff8dd6a 163 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_1_000_BW_1_2; // 1.04
Wayne Roberts 0:9c052ff8dd6a 164 break;
Wayne Roberts 0:9c052ff8dd6a 165 case 4:
Wayne Roberts 0:9c052ff8dd6a 166 bps = 0.5e6;
Wayne Roberts 0:9c052ff8dd6a 167 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_650_BW_0_6; // 0.65
Wayne Roberts 0:9c052ff8dd6a 168 break;
Wayne Roberts 0:9c052ff8dd6a 169 case 5:
Wayne Roberts 0:9c052ff8dd6a 170 bps = 0.4e6;
Wayne Roberts 0:9c052ff8dd6a 171 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_520_BW_0_6; // 0.52
Wayne Roberts 0:9c052ff8dd6a 172 break;
Wayne Roberts 0:9c052ff8dd6a 173 case 6:
Wayne Roberts 0:9c052ff8dd6a 174 bps = 0.25e6;
Wayne Roberts 0:9c052ff8dd6a 175 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_325_BW_0_3; // 0.325
Wayne Roberts 0:9c052ff8dd6a 176 break;
Wayne Roberts 0:9c052ff8dd6a 177 case 7:
Wayne Roberts 0:9c052ff8dd6a 178 bps = 0.125e6;
Wayne Roberts 0:9c052ff8dd6a 179 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_260_BW_0_3; // 0.26
Wayne Roberts 0:9c052ff8dd6a 180 break;
Wayne Roberts 0:9c052ff8dd6a 181 }
Wayne Roberts 0:9c052ff8dd6a 182
Wayne Roberts 0:9c052ff8dd6a 183 mi = (fdev_hz * 2.0) / bps;
Wayne Roberts 0:9c052ff8dd6a 184 if (mi > 0.35) {
Wayne Roberts 0:9c052ff8dd6a 185 mi -= 0.5;
Wayne Roberts 0:9c052ff8dd6a 186 mi /= 0.25;
Wayne Roberts 0:9c052ff8dd6a 187 mpBLE_GFSK.gfskBle.ModulationIndex = ((uint8_t)mi) + 1;
Wayne Roberts 0:9c052ff8dd6a 188 } else
Wayne Roberts 0:9c052ff8dd6a 189 mpBLE_GFSK.gfskBle.ModulationIndex = 0;
Wayne Roberts 0:9c052ff8dd6a 190
Wayne Roberts 0:9c052ff8dd6a 191 RegRxBw.octet = radio.readReg(REG_ADDR_RXBW, 1);
Wayne Roberts 0:9c052ff8dd6a 192
Wayne Roberts 0:9c052ff8dd6a 193 switch (RegRxBw.bits.bw) {
Wayne Roberts 0:9c052ff8dd6a 194 case 0:
Wayne Roberts 0:9c052ff8dd6a 195 if (FloraPreambleHi.bits.data_rate == 0)
Wayne Roberts 0:9c052ff8dd6a 196 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_2_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 197 if (FloraPreambleHi.bits.data_rate == 1)
Wayne Roberts 0:9c052ff8dd6a 198 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_600_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 199 if (FloraPreambleHi.bits.data_rate == 2)
Wayne Roberts 0:9c052ff8dd6a 200 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 201 if (FloraPreambleHi.bits.data_rate == 3)
Wayne Roberts 0:9c052ff8dd6a 202 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_800_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 203 break;
Wayne Roberts 0:9c052ff8dd6a 204 case 1:
Wayne Roberts 0:9c052ff8dd6a 205 if (FloraPreambleHi.bits.data_rate == 2)
Wayne Roberts 0:9c052ff8dd6a 206 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_000_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 207 if (FloraPreambleHi.bits.data_rate == 3)
Wayne Roberts 0:9c052ff8dd6a 208 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_800_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 209 if (FloraPreambleHi.bits.data_rate == 4)
Wayne Roberts 0:9c052ff8dd6a 210 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_500_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 211 if (FloraPreambleHi.bits.data_rate == 5)
Wayne Roberts 0:9c052ff8dd6a 212 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_400_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 213 break;
Wayne Roberts 0:9c052ff8dd6a 214 case 2:
Wayne Roberts 0:9c052ff8dd6a 215 if (FloraPreambleHi.bits.data_rate == 4)
Wayne Roberts 0:9c052ff8dd6a 216 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_500_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 217 if (FloraPreambleHi.bits.data_rate == 5)
Wayne Roberts 0:9c052ff8dd6a 218 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_400_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 219 if (FloraPreambleHi.bits.data_rate == 6)
Wayne Roberts 0:9c052ff8dd6a 220 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_250_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 221 break;
Wayne Roberts 0:9c052ff8dd6a 222 case 3:
Wayne Roberts 0:9c052ff8dd6a 223 if (FloraPreambleHi.bits.data_rate == 6)
Wayne Roberts 0:9c052ff8dd6a 224 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_250_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 225 if (FloraPreambleHi.bits.data_rate == 7)
Wayne Roberts 0:9c052ff8dd6a 226 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_125_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 227 break;
Wayne Roberts 0:9c052ff8dd6a 228 }
Wayne Roberts 0:9c052ff8dd6a 229 mpBLE_GFSK.gfskBle.bitrateBandwidth = reg8;
Wayne Roberts 0:9c052ff8dd6a 230 }
Wayne Roberts 0:9c052ff8dd6a 231
Wayne Roberts 0:9c052ff8dd6a 232 {
Wayne Roberts 0:9c052ff8dd6a 233 FskCfg_t FskCfg;
Wayne Roberts 0:9c052ff8dd6a 234 FskCfg.octet = radio.readReg(REG_ADDR_FSK_CFG, 1);
Wayne Roberts 0:9c052ff8dd6a 235 mpBLE_GFSK.gfskBle.ModulationShaping = FskCfg.bits.gf_bt << 4;
Wayne Roberts 0:9c052ff8dd6a 236 mpFLRC.flrc.ModulationShaping = mpBLE_GFSK.gfskBle.ModulationShaping;
Wayne Roberts 0:9c052ff8dd6a 237 }
Wayne Roberts 0:9c052ff8dd6a 238
Wayne Roberts 0:9c052ff8dd6a 239 {
Wayne Roberts 0:9c052ff8dd6a 240 PktBitStreamCtrl_t PktBitStreamCtrl;
Wayne Roberts 0:9c052ff8dd6a 241 PktBitStreamCtrl.octet = radio.readReg(REG_ADDR_PKT_BITSTREAM_CTRL, 1);
Wayne Roberts 0:9c052ff8dd6a 242 mpFLRC.flrc.CodingRate = PktBitStreamCtrl.octet & 0x06; // PktBitStreamCtrl.bits.flora_coding_rate
Wayne Roberts 0:9c052ff8dd6a 243 }
Wayne Roberts 0:9c052ff8dd6a 244
Wayne Roberts 0:9c052ff8dd6a 245 }
Wayne Roberts 0:9c052ff8dd6a 246
Wayne Roberts 0:9c052ff8dd6a 247 void Radio:: diox_top_half()
Wayne Roberts 0:9c052ff8dd6a 248 {
Wayne Roberts 0:9c052ff8dd6a 249 irqAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 250
Wayne Roberts 0:9c052ff8dd6a 251 if (radio.chipMode == CHIPMODE_TX) {
Wayne Roberts 0:9c052ff8dd6a 252 /* TxDone handling requires low latency */
Wayne Roberts 0:9c052ff8dd6a 253 if (RadioEvents->TxDone_topHalf) {
Wayne Roberts 0:9c052ff8dd6a 254 RadioEvents->TxDone_topHalf();
Wayne Roberts 0:9c052ff8dd6a 255 }
Wayne Roberts 7:ba81f66e56d1 256 } else {
Wayne Roberts 7:ba81f66e56d1 257 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 258 RX_INDICATION = 0;
Wayne Roberts 7:ba81f66e56d1 259 #endif
Wayne Roberts 0:9c052ff8dd6a 260 }
Wayne Roberts 0:9c052ff8dd6a 261 }
Wayne Roberts 0:9c052ff8dd6a 262
Wayne Roberts 0:9c052ff8dd6a 263 void Radio::rxDone(uint8_t size, const pktStatus_t* pktStatus)
Wayne Roberts 0:9c052ff8dd6a 264 {
Wayne Roberts 0:9c052ff8dd6a 265 float rssi, snr;
Wayne Roberts 0:9c052ff8dd6a 266
Wayne Roberts 0:9c052ff8dd6a 267 if (pktStatus->ble_gfsk_flrc.sync.syncAddrsCode == 0) {
Wayne Roberts 0:9c052ff8dd6a 268 int8_t s = pktStatus->lora.snr;
Wayne Roberts 0:9c052ff8dd6a 269 rssi = -pktStatus->lora.rssiSync / 2.0;
Wayne Roberts 0:9c052ff8dd6a 270 snr = s / 4.0;
Wayne Roberts 0:9c052ff8dd6a 271 } else {
Wayne Roberts 0:9c052ff8dd6a 272 rssi = -pktStatus->ble_gfsk_flrc.rssiSync / 2.0;
Wayne Roberts 0:9c052ff8dd6a 273 snr = FLT_MIN;
Wayne Roberts 0:9c052ff8dd6a 274 }
Wayne Roberts 0:9c052ff8dd6a 275
Wayne Roberts 0:9c052ff8dd6a 276 RadioEvents->RxDone(size, rssi, snr);
Wayne Roberts 0:9c052ff8dd6a 277 }
Wayne Roberts 0:9c052ff8dd6a 278
Wayne Roberts 0:9c052ff8dd6a 279 void Radio::timeout_callback(bool tx)
Wayne Roberts 0:9c052ff8dd6a 280 {
Wayne Roberts 0:9c052ff8dd6a 281 if (!tx) {
Wayne Roberts 0:9c052ff8dd6a 282 if (RadioEvents->RxTimeout)
Wayne Roberts 0:9c052ff8dd6a 283 RadioEvents->RxTimeout();
Wayne Roberts 7:ba81f66e56d1 284 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 285 RX_INDICATION = 0;
Wayne Roberts 7:ba81f66e56d1 286 #endif
Wayne Roberts 0:9c052ff8dd6a 287 } // else TODO tx timeout
Wayne Roberts 0:9c052ff8dd6a 288 }
Wayne Roberts 0:9c052ff8dd6a 289
Wayne Roberts 0:9c052ff8dd6a 290 void Radio::txDoneBottom()
Wayne Roberts 0:9c052ff8dd6a 291 {
Wayne Roberts 0:9c052ff8dd6a 292 if (RadioEvents->TxDone_botHalf)
Wayne Roberts 0:9c052ff8dd6a 293 RadioEvents->TxDone_botHalf();
Wayne Roberts 0:9c052ff8dd6a 294 }
Wayne Roberts 0:9c052ff8dd6a 295
Wayne Roberts 0:9c052ff8dd6a 296 void Radio::Init(const RadioEvents_t* e)
Wayne Roberts 0:9c052ff8dd6a 297 {
Wayne Roberts 0:9c052ff8dd6a 298 uint64_t sa;
Wayne Roberts 0:9c052ff8dd6a 299
Wayne Roberts 0:9c052ff8dd6a 300 radio.txDone = txDoneBottom;
Wayne Roberts 0:9c052ff8dd6a 301 radio.rxDone = rxDone;
Wayne Roberts 0:9c052ff8dd6a 302 radio.timeout = timeout_callback;
Wayne Roberts 0:9c052ff8dd6a 303 radio.chipModeChange = chipModeChange;
Wayne Roberts 0:9c052ff8dd6a 304 radio.diox_topHalf = diox_top_half;
Wayne Roberts 0:9c052ff8dd6a 305
Wayne Roberts 0:9c052ff8dd6a 306 readChip();
Wayne Roberts 0:9c052ff8dd6a 307
Wayne Roberts 0:9c052ff8dd6a 308 radio.setRegulator(0); // default to LDO
Wayne Roberts 0:9c052ff8dd6a 309
Wayne Roberts 0:9c052ff8dd6a 310 sa = 0xc194c1;
Wayne Roberts 0:9c052ff8dd6a 311 radio.setSyncAddr(1, sa);
Wayne Roberts 0:9c052ff8dd6a 312
Wayne Roberts 0:9c052ff8dd6a 313 RadioEvents = e;
Wayne Roberts 0:9c052ff8dd6a 314 lpt.start();
Wayne Roberts 0:9c052ff8dd6a 315
Wayne Roberts 0:9c052ff8dd6a 316 fe_enable = true;
Wayne Roberts 0:9c052ff8dd6a 317
Wayne Roberts 0:9c052ff8dd6a 318 radio.periodBase = 2; // 1ms resolution
Wayne Roberts 9:97a6de3dbc86 319 nSymbs = 8;
Wayne Roberts 0:9c052ff8dd6a 320 }
Wayne Roberts 0:9c052ff8dd6a 321
Wayne Roberts 7:ba81f66e56d1 322 float Radio::GetRssiInst()
Wayne Roberts 7:ba81f66e56d1 323 {
Wayne Roberts 7:ba81f66e56d1 324 uint8_t buf[2];
Wayne Roberts 7:ba81f66e56d1 325 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 7:ba81f66e56d1 326 return buf[1] / -2.0;
Wayne Roberts 7:ba81f66e56d1 327 }
Wayne Roberts 7:ba81f66e56d1 328
Wayne Roberts 0:9c052ff8dd6a 329 int Radio::Send(uint8_t size, timestamp_t maxListenTime, timestamp_t channelFreeTime, int rssiThresh)
Wayne Roberts 0:9c052ff8dd6a 330 {
Wayne Roberts 0:9c052ff8dd6a 331 uint8_t buf[8];
Wayne Roberts 1:e79b0a55135f 332 uint8_t pktType = radio.getPacketType();
Wayne Roberts 0:9c052ff8dd6a 333
Wayne Roberts 1:e79b0a55135f 334 if (pktType == PACKET_TYPE_LORA) {
Wayne Roberts 1:e79b0a55135f 335 ppLORA.lora.PayloadLength = size;
Wayne Roberts 1:e79b0a55135f 336 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 1:e79b0a55135f 337 } else if (pktType == PACKET_TYPE_GFSK) {
Wayne Roberts 0:9c052ff8dd6a 338 ppGFSK.gfskFLRC.PayloadLength = size;
Wayne Roberts 0:9c052ff8dd6a 339 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 340 }
Wayne Roberts 0:9c052ff8dd6a 341
Wayne Roberts 0:9c052ff8dd6a 342 if (maxListenTime > 0) {
Wayne Roberts 0:9c052ff8dd6a 343 int rssi;
Wayne Roberts 0:9c052ff8dd6a 344 us_timestamp_t startAt, chFreeAt, now;
Wayne Roberts 0:9c052ff8dd6a 345 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 346 startAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 347 Lstart:
Wayne Roberts 0:9c052ff8dd6a 348 do {
Wayne Roberts 0:9c052ff8dd6a 349 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 350 if ((now - startAt) > maxListenTime) {
Wayne Roberts 0:9c052ff8dd6a 351 return -1;
Wayne Roberts 0:9c052ff8dd6a 352 }
Wayne Roberts 0:9c052ff8dd6a 353 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 354 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 355 } while (rssi > rssiThresh);
Wayne Roberts 0:9c052ff8dd6a 356 chFreeAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 357 do {
Wayne Roberts 0:9c052ff8dd6a 358 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 359 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 360 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 361 if (rssi > rssiThresh) {
Wayne Roberts 0:9c052ff8dd6a 362 goto Lstart;
Wayne Roberts 0:9c052ff8dd6a 363 }
Wayne Roberts 0:9c052ff8dd6a 364 } while ((now - chFreeAt) < channelFreeTime);
Wayne Roberts 0:9c052ff8dd6a 365 }
Wayne Roberts 0:9c052ff8dd6a 366
Wayne Roberts 0:9c052ff8dd6a 367 radio.start_tx(size, 4000);
Wayne Roberts 0:9c052ff8dd6a 368
Wayne Roberts 0:9c052ff8dd6a 369 return 0;
Wayne Roberts 0:9c052ff8dd6a 370 }
Wayne Roberts 0:9c052ff8dd6a 371
Wayne Roberts 0:9c052ff8dd6a 372 void Radio::service()
Wayne Roberts 0:9c052ff8dd6a 373 {
Wayne Roberts 0:9c052ff8dd6a 374 radio.service();
Wayne Roberts 0:9c052ff8dd6a 375 }
Wayne Roberts 0:9c052ff8dd6a 376
Wayne Roberts 0:9c052ff8dd6a 377 bool Radio::CheckRfFrequency(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 378 {
Wayne Roberts 0:9c052ff8dd6a 379 return true;
Wayne Roberts 0:9c052ff8dd6a 380 }
Wayne Roberts 0:9c052ff8dd6a 381
Wayne Roberts 0:9c052ff8dd6a 382 void Radio::Sleep()
Wayne Roberts 0:9c052ff8dd6a 383 {
Wayne Roberts 0:9c052ff8dd6a 384 radio.setSleep(true);
Wayne Roberts 0:9c052ff8dd6a 385 }
Wayne Roberts 0:9c052ff8dd6a 386
Wayne Roberts 0:9c052ff8dd6a 387 void Radio::SetPublicNetwork(bool en)
Wayne Roberts 0:9c052ff8dd6a 388 {
Wayne Roberts 8:0518c6e68b79 389 /* uint16_t ppg;
Wayne Roberts 0:9c052ff8dd6a 390
Wayne Roberts 0:9c052ff8dd6a 391 if (en)
Wayne Roberts 0:9c052ff8dd6a 392 ppg = 0x3444;
Wayne Roberts 0:9c052ff8dd6a 393 else
Wayne Roberts 0:9c052ff8dd6a 394 ppg = 0x1424;
Wayne Roberts 0:9c052ff8dd6a 395
Wayne Roberts 0:9c052ff8dd6a 396 radio.writeReg(REG_ADDR_LORA_SYNC, ppg, 2);
Wayne Roberts 8:0518c6e68b79 397 */
Wayne Roberts 0:9c052ff8dd6a 398 }
Wayne Roberts 0:9c052ff8dd6a 399
Wayne Roberts 0:9c052ff8dd6a 400 uint32_t Radio::lora_toa_us( uint8_t pktLen )
Wayne Roberts 0:9c052ff8dd6a 401 {
Wayne Roberts 0:9c052ff8dd6a 402 double bwKHz;
Wayne Roberts 0:9c052ff8dd6a 403 LoRaPktPar0_t LoRaPktPar0;
Wayne Roberts 0:9c052ff8dd6a 404 LoRaLrCtl_t LoRaLrCtl;
Wayne Roberts 0:9c052ff8dd6a 405 LoRaPktPar1_t LoRaPktPar1;
Wayne Roberts 0:9c052ff8dd6a 406 uint8_t LowDatarateOptimize;
Wayne Roberts 0:9c052ff8dd6a 407
Wayne Roberts 0:9c052ff8dd6a 408 {
Wayne Roberts 0:9c052ff8dd6a 409 LoRaPktPar1.octet = radio.readReg(REG_ADDR_LORA_PKTPAR1, 1);
Wayne Roberts 0:9c052ff8dd6a 410 LowDatarateOptimize = LoRaPktPar1.bits.ppm_offset ? 1 : 0;
Wayne Roberts 1:e79b0a55135f 411 ppLORA.lora.HeaderType = LoRaPktPar1.bits.implicit_header ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 1:e79b0a55135f 412 ppLORA.lora.InvertIQ = LoRaPktPar1.octet & LORA_IQ_STD; // LoRaPktPar1.bits.rxinvert_iq
Wayne Roberts 0:9c052ff8dd6a 413 mpLORA.lora.codingRate = LoRaPktPar1.bits.coding_rate;
Wayne Roberts 0:9c052ff8dd6a 414 }
Wayne Roberts 0:9c052ff8dd6a 415
Wayne Roberts 0:9c052ff8dd6a 416 {
Wayne Roberts 0:9c052ff8dd6a 417 LoRaLrCtl.octet = radio.readReg(REG_ADDR_LORA_LRCTL, 1);
Wayne Roberts 0:9c052ff8dd6a 418 ppLORA.lora.crc = LoRaLrCtl.octet & 0x20; // LoRaLrCtl.bits.crc_en
Wayne Roberts 0:9c052ff8dd6a 419 }
Wayne Roberts 0:9c052ff8dd6a 420
Wayne Roberts 0:9c052ff8dd6a 421 {
Wayne Roberts 0:9c052ff8dd6a 422 LoRaPreambleReg_t LoRaPreambleReg;
Wayne Roberts 0:9c052ff8dd6a 423 LoRaPreambleReg.octet = radio.readReg(REG_ADDR_LORA_PREAMBLE, 1);
Wayne Roberts 0:9c052ff8dd6a 424 ppLORA.lora.PreambleLength = LoRaPreambleReg.bits.preamble_symb1_nb * (1 << LoRaPreambleReg.bits.preamble_symb_nb_exp);
Wayne Roberts 0:9c052ff8dd6a 425 }
Wayne Roberts 0:9c052ff8dd6a 426
Wayne Roberts 0:9c052ff8dd6a 427 {
Wayne Roberts 0:9c052ff8dd6a 428 LoRaPktPar0.octet = radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:9c052ff8dd6a 429 switch (LoRaPktPar0.bits.modem_bw) {
Wayne Roberts 0:9c052ff8dd6a 430 case 0: bwKHz = 50; break;
Wayne Roberts 0:9c052ff8dd6a 431 case 1: bwKHz = 100; break;
Wayne Roberts 0:9c052ff8dd6a 432 case 2: mpLORA.lora.bandwidth = LORA_BW_200; bwKHz = 200; break;
Wayne Roberts 0:9c052ff8dd6a 433 case 3: mpLORA.lora.bandwidth = LORA_BW_400; bwKHz = 400; break;
Wayne Roberts 0:9c052ff8dd6a 434 case 4: mpLORA.lora.bandwidth = LORA_BW_800; bwKHz = 800; break;
Wayne Roberts 0:9c052ff8dd6a 435 case 5: mpLORA.lora.bandwidth = LORA_BW_1600; bwKHz = 1600; break;
Wayne Roberts 0:9c052ff8dd6a 436 default: bwKHz = 0; break;
Wayne Roberts 0:9c052ff8dd6a 437 }
Wayne Roberts 0:9c052ff8dd6a 438 mpLORA.lora.spreadingFactor = LoRaPktPar0.bits.modem_sf << 4;
Wayne Roberts 0:9c052ff8dd6a 439 }
Wayne Roberts 0:9c052ff8dd6a 440
Wayne Roberts 0:9c052ff8dd6a 441 // Symbol rate : time for one symbol (secs)
Wayne Roberts 0:9c052ff8dd6a 442 double rs = bwKHz / (1 << LoRaPktPar0.bits.modem_sf);
Wayne Roberts 0:9c052ff8dd6a 443 double ts = 1 / rs;
Wayne Roberts 0:9c052ff8dd6a 444 // time of preamble
Wayne Roberts 0:9c052ff8dd6a 445 //
Wayne Roberts 0:9c052ff8dd6a 446 double tPreamble = ( ppLORA.lora.PreambleLength + 4.25 ) * ts;
Wayne Roberts 0:9c052ff8dd6a 447 // Symbol length of payload and time
Wayne Roberts 0:9c052ff8dd6a 448
Wayne Roberts 0:9c052ff8dd6a 449 double tmp = ceil( ( 8 * pktLen - 4 * LoRaPktPar0.bits.modem_sf +
Wayne Roberts 0:9c052ff8dd6a 450 28 + 16 * LoRaLrCtl.bits.crc_en -
Wayne Roberts 0:9c052ff8dd6a 451 ( LoRaPktPar1.bits.implicit_header ? 20 : 0 ) ) /
Wayne Roberts 0:9c052ff8dd6a 452 ( double )( 4 * ( LoRaPktPar0.bits.modem_sf -
Wayne Roberts 0:9c052ff8dd6a 453 ( ( LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) *
Wayne Roberts 0:9c052ff8dd6a 454 ( LoRaPktPar1.bits.coding_rate + 4 );
Wayne Roberts 0:9c052ff8dd6a 455
Wayne Roberts 0:9c052ff8dd6a 456 double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 );
Wayne Roberts 0:9c052ff8dd6a 457 double tPayload = nPayload * ts;
Wayne Roberts 0:9c052ff8dd6a 458 // Time on air
Wayne Roberts 0:9c052ff8dd6a 459 double tOnAir = tPreamble + tPayload;
Wayne Roberts 0:9c052ff8dd6a 460 // return microseconds
Wayne Roberts 0:9c052ff8dd6a 461 return floor( tOnAir * 1000 + 0.999 );
Wayne Roberts 0:9c052ff8dd6a 462 }
Wayne Roberts 0:9c052ff8dd6a 463
Wayne Roberts 0:9c052ff8dd6a 464 void Radio::GFSKModemConfig(unsigned bps, unsigned bw_hz, unsigned fdev_hz)
Wayne Roberts 0:9c052ff8dd6a 465 {
Wayne Roberts 0:9c052ff8dd6a 466 uint8_t u8;
Wayne Roberts 0:9c052ff8dd6a 467 float mi, Mbps = bps / 1000000.0;
Wayne Roberts 0:9c052ff8dd6a 468
Wayne Roberts 0:9c052ff8dd6a 469 if (Mbps > 1.6) {
Wayne Roberts 0:9c052ff8dd6a 470 /* 2.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 471 u8 = GFSK_BLE_BR_2_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 472 } else if (Mbps > 1.0) {
Wayne Roberts 0:9c052ff8dd6a 473 /* 1.6Mbps */
Wayne Roberts 0:9c052ff8dd6a 474 u8 = GFSK_BLE_BR_1_600_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 475 } else if (Mbps > 0.8) {
Wayne Roberts 0:9c052ff8dd6a 476 /* 1.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 477 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 478 u8 = GFSK_BLE_BR_1_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 479 else*/
Wayne Roberts 0:9c052ff8dd6a 480 u8 = GFSK_BLE_BR_1_000_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 481 } else if (Mbps > 0.5) {
Wayne Roberts 0:9c052ff8dd6a 482 /* 0.8Mbps */
Wayne Roberts 0:9c052ff8dd6a 483 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 484 u8 = GFSK_BLE_BR_0_800_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 485 else*/
Wayne Roberts 0:9c052ff8dd6a 486 u8 = GFSK_BLE_BR_0_800_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 487 } else if (Mbps > 0.4) {
Wayne Roberts 0:9c052ff8dd6a 488 /* 0.5Mbps */
Wayne Roberts 0:9c052ff8dd6a 489 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 490 u8 = GFSK_BLE_BR_0_500_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 491 else*/
Wayne Roberts 0:9c052ff8dd6a 492 u8 = GFSK_BLE_BR_0_500_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 493 } else if (Mbps > 0.25) {
Wayne Roberts 0:9c052ff8dd6a 494 /* 0.4Mbps */
Wayne Roberts 0:9c052ff8dd6a 495 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 496 u8 = GFSK_BLE_BR_0_400_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 497 else*/
Wayne Roberts 0:9c052ff8dd6a 498 u8 = GFSK_BLE_BR_0_400_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 499 } else if (Mbps > 0.125) {
Wayne Roberts 0:9c052ff8dd6a 500 /* 0.25Mbps */
Wayne Roberts 0:9c052ff8dd6a 501 /*if (bwMHz > 0.3)
Wayne Roberts 0:9c052ff8dd6a 502 u8 = GFSK_BLE_BR_0_250_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 503 else*/
Wayne Roberts 0:9c052ff8dd6a 504 u8 = GFSK_BLE_BR_0_250_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 505 } else {
Wayne Roberts 0:9c052ff8dd6a 506 /* 0.125Mbps */
Wayne Roberts 0:9c052ff8dd6a 507 u8 = GFSK_BLE_BR_0_125_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 508 }
Wayne Roberts 0:9c052ff8dd6a 509
Wayne Roberts 0:9c052ff8dd6a 510 mpBLE_GFSK.gfskBle.bitrateBandwidth = u8;
Wayne Roberts 0:9c052ff8dd6a 511
Wayne Roberts 0:9c052ff8dd6a 512 mpBLE_GFSK.gfskBle.ModulationShaping = BT_OFF;
Wayne Roberts 0:9c052ff8dd6a 513
Wayne Roberts 0:9c052ff8dd6a 514 mi = (fdev_hz * 2.0) / bps;
Wayne Roberts 0:9c052ff8dd6a 515 if (mi > 0.35) {
Wayne Roberts 0:9c052ff8dd6a 516 mi -= 0.5;
Wayne Roberts 0:9c052ff8dd6a 517 mi /= 0.25;
Wayne Roberts 0:9c052ff8dd6a 518 mpBLE_GFSK.gfskBle.ModulationIndex = ((uint8_t)mi) + 1;
Wayne Roberts 0:9c052ff8dd6a 519 } else
Wayne Roberts 0:9c052ff8dd6a 520 mpBLE_GFSK.gfskBle.ModulationIndex = 0;
Wayne Roberts 0:9c052ff8dd6a 521
Wayne Roberts 0:9c052ff8dd6a 522 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpBLE_GFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 523 }
Wayne Roberts 0:9c052ff8dd6a 524
Wayne Roberts 0:9c052ff8dd6a 525 void Radio::GFSKPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn)
Wayne Roberts 0:9c052ff8dd6a 526 {
Wayne Roberts 0:9c052ff8dd6a 527 ppGFSK.gfskFLRC.PreambleLength = (preambleLen - 4) / 4;
Wayne Roberts 0:9c052ff8dd6a 528 ppGFSK.gfskFLRC.PreambleLength <<= 4;
Wayne Roberts 0:9c052ff8dd6a 529 ppGFSK.gfskFLRC.SyncWordLength = (3 - 1) << 1; // 3 byte 0xc194c1
Wayne Roberts 0:9c052ff8dd6a 530 ppGFSK.gfskFLRC.HeaderType = fixLen ? RADIO_PACKET_FIXED_LENGTH : RADIO_PACKET_VARIABLE_LENGTH;
Wayne Roberts 0:9c052ff8dd6a 531 ppGFSK.gfskFLRC.CRCLength = crcOn ? RADIO_CRC_2_BYTES : RADIO_CRC_OFF;
Wayne Roberts 0:9c052ff8dd6a 532
Wayne Roberts 0:9c052ff8dd6a 533 // TODO ppGFSK.gfskFLRC.PayloadLength = ;
Wayne Roberts 0:9c052ff8dd6a 534
Wayne Roberts 0:9c052ff8dd6a 535 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 536 }
Wayne Roberts 0:9c052ff8dd6a 537
Wayne Roberts 0:9c052ff8dd6a 538 void Radio::SetLoRaSymbolTimeout(uint8_t symbs)
Wayne Roberts 0:9c052ff8dd6a 539 {
Wayne Roberts 9:97a6de3dbc86 540 nSymbs = symbs;
Wayne Roberts 9:97a6de3dbc86 541 rxTimeoutMs = nSymbs * (symbolPeriodUs / 1000.0);
Wayne Roberts 0:9c052ff8dd6a 542 }
Wayne Roberts 0:9c052ff8dd6a 543
Wayne Roberts 0:9c052ff8dd6a 544 void Radio::LoRaModemConfig(unsigned bwKHz, uint8_t sf, uint8_t cr)
Wayne Roberts 0:9c052ff8dd6a 545 {
Wayne Roberts 1:e79b0a55135f 546 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 547 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 548
Wayne Roberts 1:e79b0a55135f 549 if (bwKHz > 800) {
Wayne Roberts 0:9c052ff8dd6a 550 mpLORA.lora.bandwidth = LORA_BW_1600;
Wayne Roberts 1:e79b0a55135f 551 } if (bwKHz > 400) {
Wayne Roberts 0:9c052ff8dd6a 552 mpLORA.lora.bandwidth = LORA_BW_800;
Wayne Roberts 1:e79b0a55135f 553 } if (bwKHz > 200) {
Wayne Roberts 0:9c052ff8dd6a 554 mpLORA.lora.bandwidth = LORA_BW_400;
Wayne Roberts 1:e79b0a55135f 555 } else {
Wayne Roberts 0:9c052ff8dd6a 556 mpLORA.lora.bandwidth = LORA_BW_200;
Wayne Roberts 1:e79b0a55135f 557 }
Wayne Roberts 0:9c052ff8dd6a 558
Wayne Roberts 0:9c052ff8dd6a 559 mpLORA.lora.codingRate = cr;
Wayne Roberts 0:9c052ff8dd6a 560
Wayne Roberts 0:9c052ff8dd6a 561 mpLORA.lora.spreadingFactor = sf << 4;
Wayne Roberts 0:9c052ff8dd6a 562
Wayne Roberts 0:9c052ff8dd6a 563 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpLORA.buf);
Wayne Roberts 9:97a6de3dbc86 564
Wayne Roberts 9:97a6de3dbc86 565 symbolPeriodUs = (1 << sf) / (bwKHz / 1000.0); // bw in MHz gives microseconds
Wayne Roberts 9:97a6de3dbc86 566 rxTimeoutMs = nSymbs * (symbolPeriodUs / 1000.0);
Wayne Roberts 0:9c052ff8dd6a 567 }
Wayne Roberts 0:9c052ff8dd6a 568
Wayne Roberts 0:9c052ff8dd6a 569 void Radio::LoRaPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn, bool invIQ)
Wayne Roberts 0:9c052ff8dd6a 570 {
Wayne Roberts 1:e79b0a55135f 571 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 572 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 573
Wayne Roberts 0:9c052ff8dd6a 574 ppLORA.lora.PreambleLength = preambleLen;
Wayne Roberts 0:9c052ff8dd6a 575 ppLORA.lora.HeaderType = fixLen ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 0:9c052ff8dd6a 576 ppLORA.lora.crc = crcOn ? LORA_CRC_ENABLE : LORA_CRC_DISABLE;
Wayne Roberts 0:9c052ff8dd6a 577 ppLORA.lora.InvertIQ = invIQ ? LORA_IQ_INVERTED : LORA_IQ_STD;
Wayne Roberts 0:9c052ff8dd6a 578
Wayne Roberts 0:9c052ff8dd6a 579 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 0:9c052ff8dd6a 580 }
Wayne Roberts 0:9c052ff8dd6a 581
Wayne Roberts 0:9c052ff8dd6a 582 void Radio::SetChannel(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 583 {
Wayne Roberts 0:9c052ff8dd6a 584 radio.setMHz(hz / 1000000.0);
Wayne Roberts 0:9c052ff8dd6a 585 }
Wayne Roberts 0:9c052ff8dd6a 586
Wayne Roberts 0:9c052ff8dd6a 587 uint32_t Radio::Random(void)
Wayne Roberts 0:9c052ff8dd6a 588 {
Wayne Roberts 0:9c052ff8dd6a 589 uint8_t buf[2];
Wayne Roberts 0:9c052ff8dd6a 590 uint32_t ret = 0;
Wayne Roberts 0:9c052ff8dd6a 591 unsigned n;
Wayne Roberts 0:9c052ff8dd6a 592
Wayne Roberts 0:9c052ff8dd6a 593 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 594
Wayne Roberts 0:9c052ff8dd6a 595 for (n = 0; n < 8; n++) {
Wayne Roberts 0:9c052ff8dd6a 596 uint32_t r, s;
Wayne Roberts 0:9c052ff8dd6a 597 wait_us(5000);
Wayne Roberts 0:9c052ff8dd6a 598 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 599 r = buf[1];
Wayne Roberts 0:9c052ff8dd6a 600 s = n * 4;
Wayne Roberts 0:9c052ff8dd6a 601 r <<= s;
Wayne Roberts 0:9c052ff8dd6a 602 ret ^= r;
Wayne Roberts 0:9c052ff8dd6a 603 }
Wayne Roberts 0:9c052ff8dd6a 604
Wayne Roberts 0:9c052ff8dd6a 605 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 606
Wayne Roberts 0:9c052ff8dd6a 607 return ret;
Wayne Roberts 0:9c052ff8dd6a 608 }
Wayne Roberts 0:9c052ff8dd6a 609
Wayne Roberts 0:9c052ff8dd6a 610 void Radio::Rx(unsigned timeout)
Wayne Roberts 0:9c052ff8dd6a 611 {
Wayne Roberts 7:ba81f66e56d1 612 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 613 RX_INDICATION = 1;
Wayne Roberts 7:ba81f66e56d1 614 #endif
Wayne Roberts 9:97a6de3dbc86 615 if (timeout == 0)
Wayne Roberts 9:97a6de3dbc86 616 radio.start_rx(0); // continuous rx
Wayne Roberts 9:97a6de3dbc86 617 else {
Wayne Roberts 9:97a6de3dbc86 618 radio.start_rx(rxTimeoutMs);
Wayne Roberts 9:97a6de3dbc86 619 }
Wayne Roberts 0:9c052ff8dd6a 620 }
Wayne Roberts 0:9c052ff8dd6a 621
Wayne Roberts 0:9c052ff8dd6a 622 void Radio::Standby()
Wayne Roberts 0:9c052ff8dd6a 623 {
Wayne Roberts 0:9c052ff8dd6a 624 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 625 }
Wayne Roberts 0:9c052ff8dd6a 626
Wayne Roberts 0:9c052ff8dd6a 627 void Radio::set_tx_dbm(int8_t dbm)
Wayne Roberts 0:9c052ff8dd6a 628 {
Wayne Roberts 5:ab124d3842a8 629 if (dbm == PA_OFF_DBM) {
Wayne Roberts 5:ab124d3842a8 630 /* TODO: shut off PA */
Wayne Roberts 5:ab124d3842a8 631 } else {
Wayne Roberts 5:ab124d3842a8 632 radio.set_tx_dbm(dbm);
Wayne Roberts 5:ab124d3842a8 633 }
Wayne Roberts 0:9c052ff8dd6a 634 }
Wayne Roberts 0:9c052ff8dd6a 635
Wayne Roberts 0:9c052ff8dd6a 636 void Radio::SetTxContinuousWave(unsigned hz, int8_t dbm, unsigned timeout_us)
Wayne Roberts 0:9c052ff8dd6a 637 {
Wayne Roberts 0:9c052ff8dd6a 638 SetChannel(hz);
Wayne Roberts 0:9c052ff8dd6a 639 radio.set_tx_dbm(dbm);
Wayne Roberts 0:9c052ff8dd6a 640 radio.xfer(OPCODE_SET_TX_CARRIER, 0, 0, NULL);
Wayne Roberts 0:9c052ff8dd6a 641 }
Wayne Roberts 0:9c052ff8dd6a 642
Wayne Roberts 1:e79b0a55135f 643 void Radio::SetRxMaxPayloadLength(uint8_t max)
Wayne Roberts 0:9c052ff8dd6a 644 {
Wayne Roberts 1:e79b0a55135f 645 uint8_t pktType = radio.getPacketType();
Wayne Roberts 1:e79b0a55135f 646
Wayne Roberts 1:e79b0a55135f 647 if (pktType == PACKET_TYPE_GFSK)
Wayne Roberts 0:9c052ff8dd6a 648 ppGFSK.gfskFLRC.PayloadLength = max;
Wayne Roberts 1:e79b0a55135f 649 else if (pktType == PACKET_TYPE_LORA)
Wayne Roberts 0:9c052ff8dd6a 650 ppLORA.lora.PayloadLength = max;
Wayne Roberts 0:9c052ff8dd6a 651 }
Wayne Roberts 0:9c052ff8dd6a 652
Wayne Roberts 0:9c052ff8dd6a 653 #endif /* ..SX126x_H */