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

Committer:
Wayne Roberts
Date:
Wed Sep 11 13:20:21 2019 -0700
Revision:
14:94993ae5b164
Parent:
9:97a6de3dbc86
Child:
15:e1c04ec39aa4
DioPin_top_half() added to permit scheduling a call to Radio::service()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wayne Roberts 0:9c052ff8dd6a 1 #include "radio.h"
Wayne Roberts 0:9c052ff8dd6a 2 #ifdef 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 14:94993ae5b164 251 if (RadioEvents->DioPin_top_half)
Wayne Roberts 14:94993ae5b164 252 RadioEvents->DioPin_top_half();
Wayne Roberts 14:94993ae5b164 253
Wayne Roberts 0:9c052ff8dd6a 254 if (radio.chipMode == CHIPMODE_TX) {
Wayne Roberts 0:9c052ff8dd6a 255 /* TxDone handling requires low latency */
Wayne Roberts 0:9c052ff8dd6a 256 if (RadioEvents->TxDone_topHalf) {
Wayne Roberts 0:9c052ff8dd6a 257 RadioEvents->TxDone_topHalf();
Wayne Roberts 0:9c052ff8dd6a 258 }
Wayne Roberts 7:ba81f66e56d1 259 } else {
Wayne Roberts 7:ba81f66e56d1 260 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 261 RX_INDICATION = 0;
Wayne Roberts 7:ba81f66e56d1 262 #endif
Wayne Roberts 0:9c052ff8dd6a 263 }
Wayne Roberts 0:9c052ff8dd6a 264 }
Wayne Roberts 0:9c052ff8dd6a 265
Wayne Roberts 0:9c052ff8dd6a 266 void Radio::rxDone(uint8_t size, const pktStatus_t* pktStatus)
Wayne Roberts 0:9c052ff8dd6a 267 {
Wayne Roberts 0:9c052ff8dd6a 268 float rssi, snr;
Wayne Roberts 0:9c052ff8dd6a 269
Wayne Roberts 0:9c052ff8dd6a 270 if (pktStatus->ble_gfsk_flrc.sync.syncAddrsCode == 0) {
Wayne Roberts 0:9c052ff8dd6a 271 int8_t s = pktStatus->lora.snr;
Wayne Roberts 0:9c052ff8dd6a 272 rssi = -pktStatus->lora.rssiSync / 2.0;
Wayne Roberts 0:9c052ff8dd6a 273 snr = s / 4.0;
Wayne Roberts 0:9c052ff8dd6a 274 } else {
Wayne Roberts 0:9c052ff8dd6a 275 rssi = -pktStatus->ble_gfsk_flrc.rssiSync / 2.0;
Wayne Roberts 0:9c052ff8dd6a 276 snr = FLT_MIN;
Wayne Roberts 0:9c052ff8dd6a 277 }
Wayne Roberts 0:9c052ff8dd6a 278
Wayne Roberts 0:9c052ff8dd6a 279 RadioEvents->RxDone(size, rssi, snr);
Wayne Roberts 0:9c052ff8dd6a 280 }
Wayne Roberts 0:9c052ff8dd6a 281
Wayne Roberts 0:9c052ff8dd6a 282 void Radio::timeout_callback(bool tx)
Wayne Roberts 0:9c052ff8dd6a 283 {
Wayne Roberts 0:9c052ff8dd6a 284 if (!tx) {
Wayne Roberts 0:9c052ff8dd6a 285 if (RadioEvents->RxTimeout)
Wayne Roberts 0:9c052ff8dd6a 286 RadioEvents->RxTimeout();
Wayne Roberts 7:ba81f66e56d1 287 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 288 RX_INDICATION = 0;
Wayne Roberts 7:ba81f66e56d1 289 #endif
Wayne Roberts 0:9c052ff8dd6a 290 } // else TODO tx timeout
Wayne Roberts 0:9c052ff8dd6a 291 }
Wayne Roberts 0:9c052ff8dd6a 292
Wayne Roberts 0:9c052ff8dd6a 293 void Radio::txDoneBottom()
Wayne Roberts 0:9c052ff8dd6a 294 {
Wayne Roberts 0:9c052ff8dd6a 295 if (RadioEvents->TxDone_botHalf)
Wayne Roberts 0:9c052ff8dd6a 296 RadioEvents->TxDone_botHalf();
Wayne Roberts 0:9c052ff8dd6a 297 }
Wayne Roberts 0:9c052ff8dd6a 298
Wayne Roberts 0:9c052ff8dd6a 299 void Radio::Init(const RadioEvents_t* e)
Wayne Roberts 0:9c052ff8dd6a 300 {
Wayne Roberts 0:9c052ff8dd6a 301 uint64_t sa;
Wayne Roberts 0:9c052ff8dd6a 302
Wayne Roberts 0:9c052ff8dd6a 303 radio.txDone = txDoneBottom;
Wayne Roberts 0:9c052ff8dd6a 304 radio.rxDone = rxDone;
Wayne Roberts 0:9c052ff8dd6a 305 radio.timeout = timeout_callback;
Wayne Roberts 0:9c052ff8dd6a 306 radio.chipModeChange = chipModeChange;
Wayne Roberts 0:9c052ff8dd6a 307 radio.diox_topHalf = diox_top_half;
Wayne Roberts 0:9c052ff8dd6a 308
Wayne Roberts 0:9c052ff8dd6a 309 readChip();
Wayne Roberts 0:9c052ff8dd6a 310
Wayne Roberts 0:9c052ff8dd6a 311 radio.setRegulator(0); // default to LDO
Wayne Roberts 0:9c052ff8dd6a 312
Wayne Roberts 0:9c052ff8dd6a 313 sa = 0xc194c1;
Wayne Roberts 0:9c052ff8dd6a 314 radio.setSyncAddr(1, sa);
Wayne Roberts 0:9c052ff8dd6a 315
Wayne Roberts 0:9c052ff8dd6a 316 RadioEvents = e;
Wayne Roberts 0:9c052ff8dd6a 317 lpt.start();
Wayne Roberts 0:9c052ff8dd6a 318
Wayne Roberts 0:9c052ff8dd6a 319 fe_enable = true;
Wayne Roberts 0:9c052ff8dd6a 320
Wayne Roberts 0:9c052ff8dd6a 321 radio.periodBase = 2; // 1ms resolution
Wayne Roberts 9:97a6de3dbc86 322 nSymbs = 8;
Wayne Roberts 0:9c052ff8dd6a 323 }
Wayne Roberts 0:9c052ff8dd6a 324
Wayne Roberts 7:ba81f66e56d1 325 float Radio::GetRssiInst()
Wayne Roberts 7:ba81f66e56d1 326 {
Wayne Roberts 7:ba81f66e56d1 327 uint8_t buf[2];
Wayne Roberts 7:ba81f66e56d1 328 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 7:ba81f66e56d1 329 return buf[1] / -2.0;
Wayne Roberts 7:ba81f66e56d1 330 }
Wayne Roberts 7:ba81f66e56d1 331
Wayne Roberts 0:9c052ff8dd6a 332 int Radio::Send(uint8_t size, timestamp_t maxListenTime, timestamp_t channelFreeTime, int rssiThresh)
Wayne Roberts 0:9c052ff8dd6a 333 {
Wayne Roberts 0:9c052ff8dd6a 334 uint8_t buf[8];
Wayne Roberts 1:e79b0a55135f 335 uint8_t pktType = radio.getPacketType();
Wayne Roberts 0:9c052ff8dd6a 336
Wayne Roberts 1:e79b0a55135f 337 if (pktType == PACKET_TYPE_LORA) {
Wayne Roberts 1:e79b0a55135f 338 ppLORA.lora.PayloadLength = size;
Wayne Roberts 1:e79b0a55135f 339 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 1:e79b0a55135f 340 } else if (pktType == PACKET_TYPE_GFSK) {
Wayne Roberts 0:9c052ff8dd6a 341 ppGFSK.gfskFLRC.PayloadLength = size;
Wayne Roberts 0:9c052ff8dd6a 342 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 343 }
Wayne Roberts 0:9c052ff8dd6a 344
Wayne Roberts 0:9c052ff8dd6a 345 if (maxListenTime > 0) {
Wayne Roberts 0:9c052ff8dd6a 346 int rssi;
Wayne Roberts 0:9c052ff8dd6a 347 us_timestamp_t startAt, chFreeAt, now;
Wayne Roberts 0:9c052ff8dd6a 348 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 349 startAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 350 Lstart:
Wayne Roberts 0:9c052ff8dd6a 351 do {
Wayne Roberts 0:9c052ff8dd6a 352 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 353 if ((now - startAt) > maxListenTime) {
Wayne Roberts 0:9c052ff8dd6a 354 return -1;
Wayne Roberts 0:9c052ff8dd6a 355 }
Wayne Roberts 0:9c052ff8dd6a 356 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 357 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 358 } while (rssi > rssiThresh);
Wayne Roberts 0:9c052ff8dd6a 359 chFreeAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 360 do {
Wayne Roberts 0:9c052ff8dd6a 361 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 362 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 363 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 364 if (rssi > rssiThresh) {
Wayne Roberts 0:9c052ff8dd6a 365 goto Lstart;
Wayne Roberts 0:9c052ff8dd6a 366 }
Wayne Roberts 0:9c052ff8dd6a 367 } while ((now - chFreeAt) < channelFreeTime);
Wayne Roberts 0:9c052ff8dd6a 368 }
Wayne Roberts 0:9c052ff8dd6a 369
Wayne Roberts 0:9c052ff8dd6a 370 radio.start_tx(size, 4000);
Wayne Roberts 0:9c052ff8dd6a 371
Wayne Roberts 0:9c052ff8dd6a 372 return 0;
Wayne Roberts 0:9c052ff8dd6a 373 }
Wayne Roberts 0:9c052ff8dd6a 374
Wayne Roberts 0:9c052ff8dd6a 375 void Radio::service()
Wayne Roberts 0:9c052ff8dd6a 376 {
Wayne Roberts 0:9c052ff8dd6a 377 radio.service();
Wayne Roberts 0:9c052ff8dd6a 378 }
Wayne Roberts 0:9c052ff8dd6a 379
Wayne Roberts 0:9c052ff8dd6a 380 bool Radio::CheckRfFrequency(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 381 {
Wayne Roberts 0:9c052ff8dd6a 382 return true;
Wayne Roberts 0:9c052ff8dd6a 383 }
Wayne Roberts 0:9c052ff8dd6a 384
Wayne Roberts 0:9c052ff8dd6a 385 void Radio::Sleep()
Wayne Roberts 0:9c052ff8dd6a 386 {
Wayne Roberts 0:9c052ff8dd6a 387 radio.setSleep(true);
Wayne Roberts 0:9c052ff8dd6a 388 }
Wayne Roberts 0:9c052ff8dd6a 389
Wayne Roberts 0:9c052ff8dd6a 390 void Radio::SetPublicNetwork(bool en)
Wayne Roberts 0:9c052ff8dd6a 391 {
Wayne Roberts 8:0518c6e68b79 392 /* uint16_t ppg;
Wayne Roberts 0:9c052ff8dd6a 393
Wayne Roberts 0:9c052ff8dd6a 394 if (en)
Wayne Roberts 0:9c052ff8dd6a 395 ppg = 0x3444;
Wayne Roberts 0:9c052ff8dd6a 396 else
Wayne Roberts 0:9c052ff8dd6a 397 ppg = 0x1424;
Wayne Roberts 0:9c052ff8dd6a 398
Wayne Roberts 0:9c052ff8dd6a 399 radio.writeReg(REG_ADDR_LORA_SYNC, ppg, 2);
Wayne Roberts 8:0518c6e68b79 400 */
Wayne Roberts 0:9c052ff8dd6a 401 }
Wayne Roberts 0:9c052ff8dd6a 402
Wayne Roberts 0:9c052ff8dd6a 403 uint32_t Radio::lora_toa_us( uint8_t pktLen )
Wayne Roberts 0:9c052ff8dd6a 404 {
Wayne Roberts 0:9c052ff8dd6a 405 double bwKHz;
Wayne Roberts 0:9c052ff8dd6a 406 LoRaPktPar0_t LoRaPktPar0;
Wayne Roberts 0:9c052ff8dd6a 407 LoRaLrCtl_t LoRaLrCtl;
Wayne Roberts 0:9c052ff8dd6a 408 LoRaPktPar1_t LoRaPktPar1;
Wayne Roberts 0:9c052ff8dd6a 409 uint8_t LowDatarateOptimize;
Wayne Roberts 0:9c052ff8dd6a 410
Wayne Roberts 0:9c052ff8dd6a 411 {
Wayne Roberts 0:9c052ff8dd6a 412 LoRaPktPar1.octet = radio.readReg(REG_ADDR_LORA_PKTPAR1, 1);
Wayne Roberts 0:9c052ff8dd6a 413 LowDatarateOptimize = LoRaPktPar1.bits.ppm_offset ? 1 : 0;
Wayne Roberts 1:e79b0a55135f 414 ppLORA.lora.HeaderType = LoRaPktPar1.bits.implicit_header ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 1:e79b0a55135f 415 ppLORA.lora.InvertIQ = LoRaPktPar1.octet & LORA_IQ_STD; // LoRaPktPar1.bits.rxinvert_iq
Wayne Roberts 0:9c052ff8dd6a 416 mpLORA.lora.codingRate = LoRaPktPar1.bits.coding_rate;
Wayne Roberts 0:9c052ff8dd6a 417 }
Wayne Roberts 0:9c052ff8dd6a 418
Wayne Roberts 0:9c052ff8dd6a 419 {
Wayne Roberts 0:9c052ff8dd6a 420 LoRaLrCtl.octet = radio.readReg(REG_ADDR_LORA_LRCTL, 1);
Wayne Roberts 0:9c052ff8dd6a 421 ppLORA.lora.crc = LoRaLrCtl.octet & 0x20; // LoRaLrCtl.bits.crc_en
Wayne Roberts 0:9c052ff8dd6a 422 }
Wayne Roberts 0:9c052ff8dd6a 423
Wayne Roberts 0:9c052ff8dd6a 424 {
Wayne Roberts 0:9c052ff8dd6a 425 LoRaPreambleReg_t LoRaPreambleReg;
Wayne Roberts 0:9c052ff8dd6a 426 LoRaPreambleReg.octet = radio.readReg(REG_ADDR_LORA_PREAMBLE, 1);
Wayne Roberts 0:9c052ff8dd6a 427 ppLORA.lora.PreambleLength = LoRaPreambleReg.bits.preamble_symb1_nb * (1 << LoRaPreambleReg.bits.preamble_symb_nb_exp);
Wayne Roberts 0:9c052ff8dd6a 428 }
Wayne Roberts 0:9c052ff8dd6a 429
Wayne Roberts 0:9c052ff8dd6a 430 {
Wayne Roberts 0:9c052ff8dd6a 431 LoRaPktPar0.octet = radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:9c052ff8dd6a 432 switch (LoRaPktPar0.bits.modem_bw) {
Wayne Roberts 0:9c052ff8dd6a 433 case 0: bwKHz = 50; break;
Wayne Roberts 0:9c052ff8dd6a 434 case 1: bwKHz = 100; break;
Wayne Roberts 0:9c052ff8dd6a 435 case 2: mpLORA.lora.bandwidth = LORA_BW_200; bwKHz = 200; break;
Wayne Roberts 0:9c052ff8dd6a 436 case 3: mpLORA.lora.bandwidth = LORA_BW_400; bwKHz = 400; break;
Wayne Roberts 0:9c052ff8dd6a 437 case 4: mpLORA.lora.bandwidth = LORA_BW_800; bwKHz = 800; break;
Wayne Roberts 0:9c052ff8dd6a 438 case 5: mpLORA.lora.bandwidth = LORA_BW_1600; bwKHz = 1600; break;
Wayne Roberts 0:9c052ff8dd6a 439 default: bwKHz = 0; break;
Wayne Roberts 0:9c052ff8dd6a 440 }
Wayne Roberts 0:9c052ff8dd6a 441 mpLORA.lora.spreadingFactor = LoRaPktPar0.bits.modem_sf << 4;
Wayne Roberts 0:9c052ff8dd6a 442 }
Wayne Roberts 0:9c052ff8dd6a 443
Wayne Roberts 0:9c052ff8dd6a 444 // Symbol rate : time for one symbol (secs)
Wayne Roberts 0:9c052ff8dd6a 445 double rs = bwKHz / (1 << LoRaPktPar0.bits.modem_sf);
Wayne Roberts 0:9c052ff8dd6a 446 double ts = 1 / rs;
Wayne Roberts 0:9c052ff8dd6a 447 // time of preamble
Wayne Roberts 0:9c052ff8dd6a 448 //
Wayne Roberts 0:9c052ff8dd6a 449 double tPreamble = ( ppLORA.lora.PreambleLength + 4.25 ) * ts;
Wayne Roberts 0:9c052ff8dd6a 450 // Symbol length of payload and time
Wayne Roberts 0:9c052ff8dd6a 451
Wayne Roberts 0:9c052ff8dd6a 452 double tmp = ceil( ( 8 * pktLen - 4 * LoRaPktPar0.bits.modem_sf +
Wayne Roberts 0:9c052ff8dd6a 453 28 + 16 * LoRaLrCtl.bits.crc_en -
Wayne Roberts 0:9c052ff8dd6a 454 ( LoRaPktPar1.bits.implicit_header ? 20 : 0 ) ) /
Wayne Roberts 0:9c052ff8dd6a 455 ( double )( 4 * ( LoRaPktPar0.bits.modem_sf -
Wayne Roberts 0:9c052ff8dd6a 456 ( ( LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) *
Wayne Roberts 0:9c052ff8dd6a 457 ( LoRaPktPar1.bits.coding_rate + 4 );
Wayne Roberts 0:9c052ff8dd6a 458
Wayne Roberts 0:9c052ff8dd6a 459 double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 );
Wayne Roberts 0:9c052ff8dd6a 460 double tPayload = nPayload * ts;
Wayne Roberts 0:9c052ff8dd6a 461 // Time on air
Wayne Roberts 0:9c052ff8dd6a 462 double tOnAir = tPreamble + tPayload;
Wayne Roberts 0:9c052ff8dd6a 463 // return microseconds
Wayne Roberts 0:9c052ff8dd6a 464 return floor( tOnAir * 1000 + 0.999 );
Wayne Roberts 0:9c052ff8dd6a 465 }
Wayne Roberts 0:9c052ff8dd6a 466
Wayne Roberts 0:9c052ff8dd6a 467 void Radio::GFSKModemConfig(unsigned bps, unsigned bw_hz, unsigned fdev_hz)
Wayne Roberts 0:9c052ff8dd6a 468 {
Wayne Roberts 0:9c052ff8dd6a 469 uint8_t u8;
Wayne Roberts 0:9c052ff8dd6a 470 float mi, Mbps = bps / 1000000.0;
Wayne Roberts 0:9c052ff8dd6a 471
Wayne Roberts 0:9c052ff8dd6a 472 if (Mbps > 1.6) {
Wayne Roberts 0:9c052ff8dd6a 473 /* 2.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 474 u8 = GFSK_BLE_BR_2_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 475 } else if (Mbps > 1.0) {
Wayne Roberts 0:9c052ff8dd6a 476 /* 1.6Mbps */
Wayne Roberts 0:9c052ff8dd6a 477 u8 = GFSK_BLE_BR_1_600_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 478 } else if (Mbps > 0.8) {
Wayne Roberts 0:9c052ff8dd6a 479 /* 1.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 480 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 481 u8 = GFSK_BLE_BR_1_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 482 else*/
Wayne Roberts 0:9c052ff8dd6a 483 u8 = GFSK_BLE_BR_1_000_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 484 } else if (Mbps > 0.5) {
Wayne Roberts 0:9c052ff8dd6a 485 /* 0.8Mbps */
Wayne Roberts 0:9c052ff8dd6a 486 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 487 u8 = GFSK_BLE_BR_0_800_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 488 else*/
Wayne Roberts 0:9c052ff8dd6a 489 u8 = GFSK_BLE_BR_0_800_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 490 } else if (Mbps > 0.4) {
Wayne Roberts 0:9c052ff8dd6a 491 /* 0.5Mbps */
Wayne Roberts 0:9c052ff8dd6a 492 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 493 u8 = GFSK_BLE_BR_0_500_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 494 else*/
Wayne Roberts 0:9c052ff8dd6a 495 u8 = GFSK_BLE_BR_0_500_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 496 } else if (Mbps > 0.25) {
Wayne Roberts 0:9c052ff8dd6a 497 /* 0.4Mbps */
Wayne Roberts 0:9c052ff8dd6a 498 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 499 u8 = GFSK_BLE_BR_0_400_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 500 else*/
Wayne Roberts 0:9c052ff8dd6a 501 u8 = GFSK_BLE_BR_0_400_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 502 } else if (Mbps > 0.125) {
Wayne Roberts 0:9c052ff8dd6a 503 /* 0.25Mbps */
Wayne Roberts 0:9c052ff8dd6a 504 /*if (bwMHz > 0.3)
Wayne Roberts 0:9c052ff8dd6a 505 u8 = GFSK_BLE_BR_0_250_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 506 else*/
Wayne Roberts 0:9c052ff8dd6a 507 u8 = GFSK_BLE_BR_0_250_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 508 } else {
Wayne Roberts 0:9c052ff8dd6a 509 /* 0.125Mbps */
Wayne Roberts 0:9c052ff8dd6a 510 u8 = GFSK_BLE_BR_0_125_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 511 }
Wayne Roberts 0:9c052ff8dd6a 512
Wayne Roberts 0:9c052ff8dd6a 513 mpBLE_GFSK.gfskBle.bitrateBandwidth = u8;
Wayne Roberts 0:9c052ff8dd6a 514
Wayne Roberts 0:9c052ff8dd6a 515 mpBLE_GFSK.gfskBle.ModulationShaping = BT_OFF;
Wayne Roberts 0:9c052ff8dd6a 516
Wayne Roberts 0:9c052ff8dd6a 517 mi = (fdev_hz * 2.0) / bps;
Wayne Roberts 0:9c052ff8dd6a 518 if (mi > 0.35) {
Wayne Roberts 0:9c052ff8dd6a 519 mi -= 0.5;
Wayne Roberts 0:9c052ff8dd6a 520 mi /= 0.25;
Wayne Roberts 0:9c052ff8dd6a 521 mpBLE_GFSK.gfskBle.ModulationIndex = ((uint8_t)mi) + 1;
Wayne Roberts 0:9c052ff8dd6a 522 } else
Wayne Roberts 0:9c052ff8dd6a 523 mpBLE_GFSK.gfskBle.ModulationIndex = 0;
Wayne Roberts 0:9c052ff8dd6a 524
Wayne Roberts 0:9c052ff8dd6a 525 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpBLE_GFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 526 }
Wayne Roberts 0:9c052ff8dd6a 527
Wayne Roberts 0:9c052ff8dd6a 528 void Radio::GFSKPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn)
Wayne Roberts 0:9c052ff8dd6a 529 {
Wayne Roberts 0:9c052ff8dd6a 530 ppGFSK.gfskFLRC.PreambleLength = (preambleLen - 4) / 4;
Wayne Roberts 0:9c052ff8dd6a 531 ppGFSK.gfskFLRC.PreambleLength <<= 4;
Wayne Roberts 0:9c052ff8dd6a 532 ppGFSK.gfskFLRC.SyncWordLength = (3 - 1) << 1; // 3 byte 0xc194c1
Wayne Roberts 0:9c052ff8dd6a 533 ppGFSK.gfskFLRC.HeaderType = fixLen ? RADIO_PACKET_FIXED_LENGTH : RADIO_PACKET_VARIABLE_LENGTH;
Wayne Roberts 0:9c052ff8dd6a 534 ppGFSK.gfskFLRC.CRCLength = crcOn ? RADIO_CRC_2_BYTES : RADIO_CRC_OFF;
Wayne Roberts 0:9c052ff8dd6a 535
Wayne Roberts 0:9c052ff8dd6a 536 // TODO ppGFSK.gfskFLRC.PayloadLength = ;
Wayne Roberts 0:9c052ff8dd6a 537
Wayne Roberts 0:9c052ff8dd6a 538 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 539 }
Wayne Roberts 0:9c052ff8dd6a 540
Wayne Roberts 0:9c052ff8dd6a 541 void Radio::SetLoRaSymbolTimeout(uint8_t symbs)
Wayne Roberts 0:9c052ff8dd6a 542 {
Wayne Roberts 9:97a6de3dbc86 543 nSymbs = symbs;
Wayne Roberts 9:97a6de3dbc86 544 rxTimeoutMs = nSymbs * (symbolPeriodUs / 1000.0);
Wayne Roberts 0:9c052ff8dd6a 545 }
Wayne Roberts 0:9c052ff8dd6a 546
Wayne Roberts 0:9c052ff8dd6a 547 void Radio::LoRaModemConfig(unsigned bwKHz, uint8_t sf, uint8_t cr)
Wayne Roberts 0:9c052ff8dd6a 548 {
Wayne Roberts 1:e79b0a55135f 549 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 550 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 551
Wayne Roberts 1:e79b0a55135f 552 if (bwKHz > 800) {
Wayne Roberts 0:9c052ff8dd6a 553 mpLORA.lora.bandwidth = LORA_BW_1600;
Wayne Roberts 1:e79b0a55135f 554 } if (bwKHz > 400) {
Wayne Roberts 0:9c052ff8dd6a 555 mpLORA.lora.bandwidth = LORA_BW_800;
Wayne Roberts 1:e79b0a55135f 556 } if (bwKHz > 200) {
Wayne Roberts 0:9c052ff8dd6a 557 mpLORA.lora.bandwidth = LORA_BW_400;
Wayne Roberts 1:e79b0a55135f 558 } else {
Wayne Roberts 0:9c052ff8dd6a 559 mpLORA.lora.bandwidth = LORA_BW_200;
Wayne Roberts 1:e79b0a55135f 560 }
Wayne Roberts 0:9c052ff8dd6a 561
Wayne Roberts 0:9c052ff8dd6a 562 mpLORA.lora.codingRate = cr;
Wayne Roberts 0:9c052ff8dd6a 563
Wayne Roberts 0:9c052ff8dd6a 564 mpLORA.lora.spreadingFactor = sf << 4;
Wayne Roberts 0:9c052ff8dd6a 565
Wayne Roberts 0:9c052ff8dd6a 566 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpLORA.buf);
Wayne Roberts 9:97a6de3dbc86 567
Wayne Roberts 9:97a6de3dbc86 568 symbolPeriodUs = (1 << sf) / (bwKHz / 1000.0); // bw in MHz gives microseconds
Wayne Roberts 9:97a6de3dbc86 569 rxTimeoutMs = nSymbs * (symbolPeriodUs / 1000.0);
Wayne Roberts 0:9c052ff8dd6a 570 }
Wayne Roberts 0:9c052ff8dd6a 571
Wayne Roberts 0:9c052ff8dd6a 572 void Radio::LoRaPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn, bool invIQ)
Wayne Roberts 0:9c052ff8dd6a 573 {
Wayne Roberts 1:e79b0a55135f 574 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 575 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 576
Wayne Roberts 0:9c052ff8dd6a 577 ppLORA.lora.PreambleLength = preambleLen;
Wayne Roberts 0:9c052ff8dd6a 578 ppLORA.lora.HeaderType = fixLen ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 0:9c052ff8dd6a 579 ppLORA.lora.crc = crcOn ? LORA_CRC_ENABLE : LORA_CRC_DISABLE;
Wayne Roberts 0:9c052ff8dd6a 580 ppLORA.lora.InvertIQ = invIQ ? LORA_IQ_INVERTED : LORA_IQ_STD;
Wayne Roberts 0:9c052ff8dd6a 581
Wayne Roberts 0:9c052ff8dd6a 582 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 0:9c052ff8dd6a 583 }
Wayne Roberts 0:9c052ff8dd6a 584
Wayne Roberts 0:9c052ff8dd6a 585 void Radio::SetChannel(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 586 {
Wayne Roberts 0:9c052ff8dd6a 587 radio.setMHz(hz / 1000000.0);
Wayne Roberts 0:9c052ff8dd6a 588 }
Wayne Roberts 0:9c052ff8dd6a 589
Wayne Roberts 0:9c052ff8dd6a 590 uint32_t Radio::Random(void)
Wayne Roberts 0:9c052ff8dd6a 591 {
Wayne Roberts 0:9c052ff8dd6a 592 uint8_t buf[2];
Wayne Roberts 0:9c052ff8dd6a 593 uint32_t ret = 0;
Wayne Roberts 0:9c052ff8dd6a 594 unsigned n;
Wayne Roberts 0:9c052ff8dd6a 595
Wayne Roberts 0:9c052ff8dd6a 596 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 597
Wayne Roberts 0:9c052ff8dd6a 598 for (n = 0; n < 8; n++) {
Wayne Roberts 0:9c052ff8dd6a 599 uint32_t r, s;
Wayne Roberts 0:9c052ff8dd6a 600 wait_us(5000);
Wayne Roberts 0:9c052ff8dd6a 601 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 602 r = buf[1];
Wayne Roberts 0:9c052ff8dd6a 603 s = n * 4;
Wayne Roberts 0:9c052ff8dd6a 604 r <<= s;
Wayne Roberts 0:9c052ff8dd6a 605 ret ^= r;
Wayne Roberts 0:9c052ff8dd6a 606 }
Wayne Roberts 0:9c052ff8dd6a 607
Wayne Roberts 0:9c052ff8dd6a 608 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 609
Wayne Roberts 0:9c052ff8dd6a 610 return ret;
Wayne Roberts 0:9c052ff8dd6a 611 }
Wayne Roberts 0:9c052ff8dd6a 612
Wayne Roberts 0:9c052ff8dd6a 613 void Radio::Rx(unsigned timeout)
Wayne Roberts 0:9c052ff8dd6a 614 {
Wayne Roberts 7:ba81f66e56d1 615 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 616 RX_INDICATION = 1;
Wayne Roberts 7:ba81f66e56d1 617 #endif
Wayne Roberts 9:97a6de3dbc86 618 if (timeout == 0)
Wayne Roberts 9:97a6de3dbc86 619 radio.start_rx(0); // continuous rx
Wayne Roberts 9:97a6de3dbc86 620 else {
Wayne Roberts 9:97a6de3dbc86 621 radio.start_rx(rxTimeoutMs);
Wayne Roberts 9:97a6de3dbc86 622 }
Wayne Roberts 0:9c052ff8dd6a 623 }
Wayne Roberts 0:9c052ff8dd6a 624
Wayne Roberts 0:9c052ff8dd6a 625 void Radio::Standby()
Wayne Roberts 0:9c052ff8dd6a 626 {
Wayne Roberts 0:9c052ff8dd6a 627 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 628 }
Wayne Roberts 0:9c052ff8dd6a 629
Wayne Roberts 0:9c052ff8dd6a 630 void Radio::set_tx_dbm(int8_t dbm)
Wayne Roberts 0:9c052ff8dd6a 631 {
Wayne Roberts 5:ab124d3842a8 632 if (dbm == PA_OFF_DBM) {
Wayne Roberts 5:ab124d3842a8 633 /* TODO: shut off PA */
Wayne Roberts 5:ab124d3842a8 634 } else {
Wayne Roberts 5:ab124d3842a8 635 radio.set_tx_dbm(dbm);
Wayne Roberts 5:ab124d3842a8 636 }
Wayne Roberts 0:9c052ff8dd6a 637 }
Wayne Roberts 0:9c052ff8dd6a 638
Wayne Roberts 0:9c052ff8dd6a 639 void Radio::SetTxContinuousWave(unsigned hz, int8_t dbm, unsigned timeout_us)
Wayne Roberts 0:9c052ff8dd6a 640 {
Wayne Roberts 0:9c052ff8dd6a 641 SetChannel(hz);
Wayne Roberts 0:9c052ff8dd6a 642 radio.set_tx_dbm(dbm);
Wayne Roberts 0:9c052ff8dd6a 643 radio.xfer(OPCODE_SET_TX_CARRIER, 0, 0, NULL);
Wayne Roberts 0:9c052ff8dd6a 644 }
Wayne Roberts 0:9c052ff8dd6a 645
Wayne Roberts 1:e79b0a55135f 646 void Radio::SetRxMaxPayloadLength(uint8_t max)
Wayne Roberts 0:9c052ff8dd6a 647 {
Wayne Roberts 1:e79b0a55135f 648 uint8_t pktType = radio.getPacketType();
Wayne Roberts 1:e79b0a55135f 649
Wayne Roberts 1:e79b0a55135f 650 if (pktType == PACKET_TYPE_GFSK)
Wayne Roberts 0:9c052ff8dd6a 651 ppGFSK.gfskFLRC.PayloadLength = max;
Wayne Roberts 1:e79b0a55135f 652 else if (pktType == PACKET_TYPE_LORA)
Wayne Roberts 0:9c052ff8dd6a 653 ppLORA.lora.PayloadLength = max;
Wayne Roberts 0:9c052ff8dd6a 654 }
Wayne Roberts 0:9c052ff8dd6a 655
Wayne Roberts 0:9c052ff8dd6a 656 #endif /* ..SX126x_H */