Ilya Krylov / sx12xx_hal123

1

radio_sx128x.cpp@13:a354f82d12d9, 2019-05-31 (annotated)

Committer:
Wayne Roberts
Date:
Fri May 31 10:21:30 2019 -0700
Revision:
13:a354f82d12d9
Parent:
12:fcfafd17ae1b
Child:
15:e1c04ec39aa4
symbol timeout to 16bits.  Add spi clk freq initialization option.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wayne Roberts 0:9c052ff8dd6a 1 #include "radio.h"
Wayne Roberts 0:9c052ff8dd6a 2 #ifdef 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 13:a354f82d12d9 296 void Radio::Init(const RadioEvents_t* e, unsigned spi_hz)
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 13:a354f82d12d9 306 spi.frequency(spi_hz);
Wayne Roberts 0:9c052ff8dd6a 307 readChip();
Wayne Roberts 0:9c052ff8dd6a 308
Wayne Roberts 0:9c052ff8dd6a 309 radio.setRegulator(0); // default to LDO
Wayne Roberts 0:9c052ff8dd6a 310
Wayne Roberts 0:9c052ff8dd6a 311 sa = 0xc194c1;
Wayne Roberts 0:9c052ff8dd6a 312 radio.setSyncAddr(1, sa);
Wayne Roberts 0:9c052ff8dd6a 313
Wayne Roberts 0:9c052ff8dd6a 314 RadioEvents = e;
Wayne Roberts 0:9c052ff8dd6a 315 lpt.start();
Wayne Roberts 0:9c052ff8dd6a 316
Wayne Roberts 0:9c052ff8dd6a 317 fe_enable = true;
Wayne Roberts 0:9c052ff8dd6a 318
Wayne Roberts 0:9c052ff8dd6a 319 radio.periodBase = 2; // 1ms resolution
Wayne Roberts 9:97a6de3dbc86 320 nSymbs = 8;
Wayne Roberts 0:9c052ff8dd6a 321 }
Wayne Roberts 0:9c052ff8dd6a 322
Wayne Roberts 7:ba81f66e56d1 323 float Radio::GetRssiInst()
Wayne Roberts 7:ba81f66e56d1 324 {
Wayne Roberts 7:ba81f66e56d1 325 uint8_t buf[2];
Wayne Roberts 7:ba81f66e56d1 326 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 7:ba81f66e56d1 327 return buf[1] / -2.0;
Wayne Roberts 7:ba81f66e56d1 328 }
Wayne Roberts 7:ba81f66e56d1 329
Wayne Roberts 0:9c052ff8dd6a 330 int Radio::Send(uint8_t size, timestamp_t maxListenTime, timestamp_t channelFreeTime, int rssiThresh)
Wayne Roberts 0:9c052ff8dd6a 331 {
Wayne Roberts 0:9c052ff8dd6a 332 uint8_t buf[8];
Wayne Roberts 1:e79b0a55135f 333 uint8_t pktType = radio.getPacketType();
Wayne Roberts 0:9c052ff8dd6a 334
Wayne Roberts 1:e79b0a55135f 335 if (pktType == PACKET_TYPE_LORA) {
Wayne Roberts 1:e79b0a55135f 336 ppLORA.lora.PayloadLength = size;
Wayne Roberts 1:e79b0a55135f 337 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 1:e79b0a55135f 338 } else if (pktType == PACKET_TYPE_GFSK) {
Wayne Roberts 0:9c052ff8dd6a 339 ppGFSK.gfskFLRC.PayloadLength = size;
Wayne Roberts 0:9c052ff8dd6a 340 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 341 }
Wayne Roberts 0:9c052ff8dd6a 342
Wayne Roberts 0:9c052ff8dd6a 343 if (maxListenTime > 0) {
Wayne Roberts 0:9c052ff8dd6a 344 int rssi;
Wayne Roberts 0:9c052ff8dd6a 345 us_timestamp_t startAt, chFreeAt, now;
Wayne Roberts 0:9c052ff8dd6a 346 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 347 startAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 348 Lstart:
Wayne Roberts 0:9c052ff8dd6a 349 do {
Wayne Roberts 0:9c052ff8dd6a 350 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 351 if ((now - startAt) > maxListenTime) {
Wayne Roberts 0:9c052ff8dd6a 352 return -1;
Wayne Roberts 0:9c052ff8dd6a 353 }
Wayne Roberts 0:9c052ff8dd6a 354 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 355 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 356 } while (rssi > rssiThresh);
Wayne Roberts 0:9c052ff8dd6a 357 chFreeAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 358 do {
Wayne Roberts 0:9c052ff8dd6a 359 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 360 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 361 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 362 if (rssi > rssiThresh) {
Wayne Roberts 0:9c052ff8dd6a 363 goto Lstart;
Wayne Roberts 0:9c052ff8dd6a 364 }
Wayne Roberts 0:9c052ff8dd6a 365 } while ((now - chFreeAt) < channelFreeTime);
Wayne Roberts 0:9c052ff8dd6a 366 }
Wayne Roberts 0:9c052ff8dd6a 367
Wayne Roberts 0:9c052ff8dd6a 368 radio.start_tx(size, 4000);
Wayne Roberts 0:9c052ff8dd6a 369
Wayne Roberts 0:9c052ff8dd6a 370 return 0;
Wayne Roberts 0:9c052ff8dd6a 371 }
Wayne Roberts 0:9c052ff8dd6a 372
Wayne Roberts 0:9c052ff8dd6a 373 void Radio::service()
Wayne Roberts 0:9c052ff8dd6a 374 {
Wayne Roberts 0:9c052ff8dd6a 375 radio.service();
Wayne Roberts 0:9c052ff8dd6a 376 }
Wayne Roberts 0:9c052ff8dd6a 377
Wayne Roberts 0:9c052ff8dd6a 378 bool Radio::CheckRfFrequency(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 379 {
Wayne Roberts 0:9c052ff8dd6a 380 return true;
Wayne Roberts 0:9c052ff8dd6a 381 }
Wayne Roberts 0:9c052ff8dd6a 382
Wayne Roberts 0:9c052ff8dd6a 383 void Radio::Sleep()
Wayne Roberts 0:9c052ff8dd6a 384 {
Wayne Roberts 0:9c052ff8dd6a 385 radio.setSleep(true);
Wayne Roberts 0:9c052ff8dd6a 386 }
Wayne Roberts 0:9c052ff8dd6a 387
Wayne Roberts 0:9c052ff8dd6a 388 void Radio::SetPublicNetwork(bool en)
Wayne Roberts 0:9c052ff8dd6a 389 {
Wayne Roberts 8:0518c6e68b79 390 /* uint16_t ppg;
Wayne Roberts 0:9c052ff8dd6a 391
Wayne Roberts 0:9c052ff8dd6a 392 if (en)
Wayne Roberts 0:9c052ff8dd6a 393 ppg = 0x3444;
Wayne Roberts 0:9c052ff8dd6a 394 else
Wayne Roberts 0:9c052ff8dd6a 395 ppg = 0x1424;
Wayne Roberts 0:9c052ff8dd6a 396
Wayne Roberts 0:9c052ff8dd6a 397 radio.writeReg(REG_ADDR_LORA_SYNC, ppg, 2);
Wayne Roberts 8:0518c6e68b79 398 */
Wayne Roberts 0:9c052ff8dd6a 399 }
Wayne Roberts 0:9c052ff8dd6a 400
Wayne Roberts 0:9c052ff8dd6a 401 uint32_t Radio::lora_toa_us( uint8_t pktLen )
Wayne Roberts 0:9c052ff8dd6a 402 {
Wayne Roberts 0:9c052ff8dd6a 403 double bwKHz;
Wayne Roberts 0:9c052ff8dd6a 404 LoRaPktPar0_t LoRaPktPar0;
Wayne Roberts 0:9c052ff8dd6a 405 LoRaLrCtl_t LoRaLrCtl;
Wayne Roberts 0:9c052ff8dd6a 406 LoRaPktPar1_t LoRaPktPar1;
Wayne Roberts 0:9c052ff8dd6a 407 uint8_t LowDatarateOptimize;
Wayne Roberts 0:9c052ff8dd6a 408
Wayne Roberts 0:9c052ff8dd6a 409 {
Wayne Roberts 0:9c052ff8dd6a 410 LoRaPktPar1.octet = radio.readReg(REG_ADDR_LORA_PKTPAR1, 1);
Wayne Roberts 0:9c052ff8dd6a 411 LowDatarateOptimize = LoRaPktPar1.bits.ppm_offset ? 1 : 0;
Wayne Roberts 1:e79b0a55135f 412 ppLORA.lora.HeaderType = LoRaPktPar1.bits.implicit_header ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 1:e79b0a55135f 413 ppLORA.lora.InvertIQ = LoRaPktPar1.octet & LORA_IQ_STD; // LoRaPktPar1.bits.rxinvert_iq
Wayne Roberts 0:9c052ff8dd6a 414 mpLORA.lora.codingRate = LoRaPktPar1.bits.coding_rate;
Wayne Roberts 0:9c052ff8dd6a 415 }
Wayne Roberts 0:9c052ff8dd6a 416
Wayne Roberts 0:9c052ff8dd6a 417 {
Wayne Roberts 0:9c052ff8dd6a 418 LoRaLrCtl.octet = radio.readReg(REG_ADDR_LORA_LRCTL, 1);
Wayne Roberts 0:9c052ff8dd6a 419 ppLORA.lora.crc = LoRaLrCtl.octet & 0x20; // LoRaLrCtl.bits.crc_en
Wayne Roberts 0:9c052ff8dd6a 420 }
Wayne Roberts 0:9c052ff8dd6a 421
Wayne Roberts 0:9c052ff8dd6a 422 {
Wayne Roberts 0:9c052ff8dd6a 423 LoRaPreambleReg_t LoRaPreambleReg;
Wayne Roberts 0:9c052ff8dd6a 424 LoRaPreambleReg.octet = radio.readReg(REG_ADDR_LORA_PREAMBLE, 1);
Wayne Roberts 0:9c052ff8dd6a 425 ppLORA.lora.PreambleLength = LoRaPreambleReg.bits.preamble_symb1_nb * (1 << LoRaPreambleReg.bits.preamble_symb_nb_exp);
Wayne Roberts 0:9c052ff8dd6a 426 }
Wayne Roberts 0:9c052ff8dd6a 427
Wayne Roberts 0:9c052ff8dd6a 428 {
Wayne Roberts 0:9c052ff8dd6a 429 LoRaPktPar0.octet = radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:9c052ff8dd6a 430 switch (LoRaPktPar0.bits.modem_bw) {
Wayne Roberts 0:9c052ff8dd6a 431 case 0: bwKHz = 50; break;
Wayne Roberts 0:9c052ff8dd6a 432 case 1: bwKHz = 100; break;
Wayne Roberts 0:9c052ff8dd6a 433 case 2: mpLORA.lora.bandwidth = LORA_BW_200; bwKHz = 200; break;
Wayne Roberts 0:9c052ff8dd6a 434 case 3: mpLORA.lora.bandwidth = LORA_BW_400; bwKHz = 400; break;
Wayne Roberts 0:9c052ff8dd6a 435 case 4: mpLORA.lora.bandwidth = LORA_BW_800; bwKHz = 800; break;
Wayne Roberts 0:9c052ff8dd6a 436 case 5: mpLORA.lora.bandwidth = LORA_BW_1600; bwKHz = 1600; break;
Wayne Roberts 0:9c052ff8dd6a 437 default: bwKHz = 0; break;
Wayne Roberts 0:9c052ff8dd6a 438 }
Wayne Roberts 0:9c052ff8dd6a 439 mpLORA.lora.spreadingFactor = LoRaPktPar0.bits.modem_sf << 4;
Wayne Roberts 0:9c052ff8dd6a 440 }
Wayne Roberts 0:9c052ff8dd6a 441
Wayne Roberts 0:9c052ff8dd6a 442 // Symbol rate : time for one symbol (secs)
Wayne Roberts 0:9c052ff8dd6a 443 double rs = bwKHz / (1 << LoRaPktPar0.bits.modem_sf);
Wayne Roberts 0:9c052ff8dd6a 444 double ts = 1 / rs;
Wayne Roberts 0:9c052ff8dd6a 445 // time of preamble
Wayne Roberts 0:9c052ff8dd6a 446 //
Wayne Roberts 0:9c052ff8dd6a 447 double tPreamble = ( ppLORA.lora.PreambleLength + 4.25 ) * ts;
Wayne Roberts 0:9c052ff8dd6a 448 // Symbol length of payload and time
Wayne Roberts 0:9c052ff8dd6a 449
Wayne Roberts 0:9c052ff8dd6a 450 double tmp = ceil( ( 8 * pktLen - 4 * LoRaPktPar0.bits.modem_sf +
Wayne Roberts 0:9c052ff8dd6a 451 28 + 16 * LoRaLrCtl.bits.crc_en -
Wayne Roberts 0:9c052ff8dd6a 452 ( LoRaPktPar1.bits.implicit_header ? 20 : 0 ) ) /
Wayne Roberts 0:9c052ff8dd6a 453 ( double )( 4 * ( LoRaPktPar0.bits.modem_sf -
Wayne Roberts 0:9c052ff8dd6a 454 ( ( LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) *
Wayne Roberts 0:9c052ff8dd6a 455 ( LoRaPktPar1.bits.coding_rate + 4 );
Wayne Roberts 0:9c052ff8dd6a 456
Wayne Roberts 0:9c052ff8dd6a 457 double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 );
Wayne Roberts 0:9c052ff8dd6a 458 double tPayload = nPayload * ts;
Wayne Roberts 0:9c052ff8dd6a 459 // Time on air
Wayne Roberts 0:9c052ff8dd6a 460 double tOnAir = tPreamble + tPayload;
Wayne Roberts 0:9c052ff8dd6a 461 // return microseconds
Wayne Roberts 0:9c052ff8dd6a 462 return floor( tOnAir * 1000 + 0.999 );
Wayne Roberts 0:9c052ff8dd6a 463 }
Wayne Roberts 0:9c052ff8dd6a 464
Wayne Roberts 0:9c052ff8dd6a 465 void Radio::GFSKModemConfig(unsigned bps, unsigned bw_hz, unsigned fdev_hz)
Wayne Roberts 0:9c052ff8dd6a 466 {
Wayne Roberts 0:9c052ff8dd6a 467 uint8_t u8;
Wayne Roberts 0:9c052ff8dd6a 468 float mi, Mbps = bps / 1000000.0;
Wayne Roberts 0:9c052ff8dd6a 469
Wayne Roberts 0:9c052ff8dd6a 470 if (Mbps > 1.6) {
Wayne Roberts 0:9c052ff8dd6a 471 /* 2.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 472 u8 = GFSK_BLE_BR_2_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 473 } else if (Mbps > 1.0) {
Wayne Roberts 0:9c052ff8dd6a 474 /* 1.6Mbps */
Wayne Roberts 0:9c052ff8dd6a 475 u8 = GFSK_BLE_BR_1_600_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 476 } else if (Mbps > 0.8) {
Wayne Roberts 0:9c052ff8dd6a 477 /* 1.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 478 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 479 u8 = GFSK_BLE_BR_1_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 480 else*/
Wayne Roberts 0:9c052ff8dd6a 481 u8 = GFSK_BLE_BR_1_000_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 482 } else if (Mbps > 0.5) {
Wayne Roberts 0:9c052ff8dd6a 483 /* 0.8Mbps */
Wayne Roberts 0:9c052ff8dd6a 484 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 485 u8 = GFSK_BLE_BR_0_800_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 486 else*/
Wayne Roberts 0:9c052ff8dd6a 487 u8 = GFSK_BLE_BR_0_800_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 488 } else if (Mbps > 0.4) {
Wayne Roberts 0:9c052ff8dd6a 489 /* 0.5Mbps */
Wayne Roberts 0:9c052ff8dd6a 490 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 491 u8 = GFSK_BLE_BR_0_500_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 492 else*/
Wayne Roberts 0:9c052ff8dd6a 493 u8 = GFSK_BLE_BR_0_500_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 494 } else if (Mbps > 0.25) {
Wayne Roberts 0:9c052ff8dd6a 495 /* 0.4Mbps */
Wayne Roberts 0:9c052ff8dd6a 496 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 497 u8 = GFSK_BLE_BR_0_400_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 498 else*/
Wayne Roberts 0:9c052ff8dd6a 499 u8 = GFSK_BLE_BR_0_400_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 500 } else if (Mbps > 0.125) {
Wayne Roberts 0:9c052ff8dd6a 501 /* 0.25Mbps */
Wayne Roberts 0:9c052ff8dd6a 502 /*if (bwMHz > 0.3)
Wayne Roberts 0:9c052ff8dd6a 503 u8 = GFSK_BLE_BR_0_250_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 504 else*/
Wayne Roberts 0:9c052ff8dd6a 505 u8 = GFSK_BLE_BR_0_250_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 506 } else {
Wayne Roberts 0:9c052ff8dd6a 507 /* 0.125Mbps */
Wayne Roberts 0:9c052ff8dd6a 508 u8 = GFSK_BLE_BR_0_125_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 509 }
Wayne Roberts 0:9c052ff8dd6a 510
Wayne Roberts 0:9c052ff8dd6a 511 mpBLE_GFSK.gfskBle.bitrateBandwidth = u8;
Wayne Roberts 0:9c052ff8dd6a 512
Wayne Roberts 0:9c052ff8dd6a 513 mpBLE_GFSK.gfskBle.ModulationShaping = BT_OFF;
Wayne Roberts 0:9c052ff8dd6a 514
Wayne Roberts 0:9c052ff8dd6a 515 mi = (fdev_hz * 2.0) / bps;
Wayne Roberts 0:9c052ff8dd6a 516 if (mi > 0.35) {
Wayne Roberts 0:9c052ff8dd6a 517 mi -= 0.5;
Wayne Roberts 0:9c052ff8dd6a 518 mi /= 0.25;
Wayne Roberts 0:9c052ff8dd6a 519 mpBLE_GFSK.gfskBle.ModulationIndex = ((uint8_t)mi) + 1;
Wayne Roberts 0:9c052ff8dd6a 520 } else
Wayne Roberts 0:9c052ff8dd6a 521 mpBLE_GFSK.gfskBle.ModulationIndex = 0;
Wayne Roberts 0:9c052ff8dd6a 522
Wayne Roberts 0:9c052ff8dd6a 523 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpBLE_GFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 524 }
Wayne Roberts 0:9c052ff8dd6a 525
Wayne Roberts 0:9c052ff8dd6a 526 void Radio::GFSKPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn)
Wayne Roberts 0:9c052ff8dd6a 527 {
Wayne Roberts 0:9c052ff8dd6a 528 ppGFSK.gfskFLRC.PreambleLength = (preambleLen - 4) / 4;
Wayne Roberts 0:9c052ff8dd6a 529 ppGFSK.gfskFLRC.PreambleLength <<= 4;
Wayne Roberts 0:9c052ff8dd6a 530 ppGFSK.gfskFLRC.SyncWordLength = (3 - 1) << 1; // 3 byte 0xc194c1
Wayne Roberts 0:9c052ff8dd6a 531 ppGFSK.gfskFLRC.HeaderType = fixLen ? RADIO_PACKET_FIXED_LENGTH : RADIO_PACKET_VARIABLE_LENGTH;
Wayne Roberts 0:9c052ff8dd6a 532 ppGFSK.gfskFLRC.CRCLength = crcOn ? RADIO_CRC_2_BYTES : RADIO_CRC_OFF;
Wayne Roberts 0:9c052ff8dd6a 533
Wayne Roberts 0:9c052ff8dd6a 534 // TODO ppGFSK.gfskFLRC.PayloadLength = ;
Wayne Roberts 0:9c052ff8dd6a 535
Wayne Roberts 0:9c052ff8dd6a 536 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 537 }
Wayne Roberts 0:9c052ff8dd6a 538
Wayne Roberts 13:a354f82d12d9 539 void Radio::SetLoRaSymbolTimeout(uint16_t symbs)
Wayne Roberts 0:9c052ff8dd6a 540 {
Wayne Roberts 9:97a6de3dbc86 541 nSymbs = symbs;
Wayne Roberts 9:97a6de3dbc86 542 rxTimeoutMs = nSymbs * (symbolPeriodUs / 1000.0);
Wayne Roberts 0:9c052ff8dd6a 543 }
Wayne Roberts 0:9c052ff8dd6a 544
Wayne Roberts 0:9c052ff8dd6a 545 void Radio::LoRaModemConfig(unsigned bwKHz, uint8_t sf, uint8_t cr)
Wayne Roberts 0:9c052ff8dd6a 546 {
Wayne Roberts 1:e79b0a55135f 547 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 548 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 549
Wayne Roberts 12:fcfafd17ae1b 550 if (bwKHz > 800)
Wayne Roberts 0:9c052ff8dd6a 551 mpLORA.lora.bandwidth = LORA_BW_1600;
Wayne Roberts 12:fcfafd17ae1b 552 else if (bwKHz > 400)
Wayne Roberts 0:9c052ff8dd6a 553 mpLORA.lora.bandwidth = LORA_BW_800;
Wayne Roberts 12:fcfafd17ae1b 554 else if (bwKHz > 200)
Wayne Roberts 0:9c052ff8dd6a 555 mpLORA.lora.bandwidth = LORA_BW_400;
Wayne Roberts 12:fcfafd17ae1b 556 else if (bwKHz > 100)
Wayne Roberts 0:9c052ff8dd6a 557 mpLORA.lora.bandwidth = LORA_BW_200;
Wayne Roberts 12:fcfafd17ae1b 558 else if (bwKHz > 50)
Wayne Roberts 12:fcfafd17ae1b 559 mpLORA.lora.bandwidth = LORA_BW_100;
Wayne Roberts 12:fcfafd17ae1b 560 else
Wayne Roberts 12:fcfafd17ae1b 561 mpLORA.lora.bandwidth = LORA_BW_50;
Wayne Roberts 0:9c052ff8dd6a 562
Wayne Roberts 0:9c052ff8dd6a 563 mpLORA.lora.codingRate = cr;
Wayne Roberts 0:9c052ff8dd6a 564
Wayne Roberts 0:9c052ff8dd6a 565 mpLORA.lora.spreadingFactor = sf << 4;
Wayne Roberts 0:9c052ff8dd6a 566
Wayne Roberts 0:9c052ff8dd6a 567 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpLORA.buf);
Wayne Roberts 9:97a6de3dbc86 568
Wayne Roberts 9:97a6de3dbc86 569 symbolPeriodUs = (1 << sf) / (bwKHz / 1000.0); // bw in MHz gives microseconds
Wayne Roberts 9:97a6de3dbc86 570 rxTimeoutMs = nSymbs * (symbolPeriodUs / 1000.0);
Wayne Roberts 0:9c052ff8dd6a 571 }
Wayne Roberts 0:9c052ff8dd6a 572
Wayne Roberts 0:9c052ff8dd6a 573 void Radio::LoRaPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn, bool invIQ)
Wayne Roberts 0:9c052ff8dd6a 574 {
Wayne Roberts 1:e79b0a55135f 575 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 576 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 577
Wayne Roberts 0:9c052ff8dd6a 578 ppLORA.lora.PreambleLength = preambleLen;
Wayne Roberts 0:9c052ff8dd6a 579 ppLORA.lora.HeaderType = fixLen ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 0:9c052ff8dd6a 580 ppLORA.lora.crc = crcOn ? LORA_CRC_ENABLE : LORA_CRC_DISABLE;
Wayne Roberts 0:9c052ff8dd6a 581 ppLORA.lora.InvertIQ = invIQ ? LORA_IQ_INVERTED : LORA_IQ_STD;
Wayne Roberts 0:9c052ff8dd6a 582
Wayne Roberts 0:9c052ff8dd6a 583 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 0:9c052ff8dd6a 584 }
Wayne Roberts 0:9c052ff8dd6a 585
Wayne Roberts 0:9c052ff8dd6a 586 void Radio::SetChannel(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 587 {
Wayne Roberts 0:9c052ff8dd6a 588 radio.setMHz(hz / 1000000.0);
Wayne Roberts 0:9c052ff8dd6a 589 }
Wayne Roberts 0:9c052ff8dd6a 590
Wayne Roberts 0:9c052ff8dd6a 591 uint32_t Radio::Random(void)
Wayne Roberts 0:9c052ff8dd6a 592 {
Wayne Roberts 0:9c052ff8dd6a 593 uint8_t buf[2];
Wayne Roberts 0:9c052ff8dd6a 594 uint32_t ret = 0;
Wayne Roberts 0:9c052ff8dd6a 595 unsigned n;
Wayne Roberts 0:9c052ff8dd6a 596
Wayne Roberts 0:9c052ff8dd6a 597 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 598
Wayne Roberts 0:9c052ff8dd6a 599 for (n = 0; n < 8; n++) {
Wayne Roberts 0:9c052ff8dd6a 600 uint32_t r, s;
Wayne Roberts 0:9c052ff8dd6a 601 wait_us(5000);
Wayne Roberts 0:9c052ff8dd6a 602 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 603 r = buf[1];
Wayne Roberts 0:9c052ff8dd6a 604 s = n * 4;
Wayne Roberts 0:9c052ff8dd6a 605 r <<= s;
Wayne Roberts 0:9c052ff8dd6a 606 ret ^= r;
Wayne Roberts 0:9c052ff8dd6a 607 }
Wayne Roberts 0:9c052ff8dd6a 608
Wayne Roberts 0:9c052ff8dd6a 609 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 610
Wayne Roberts 0:9c052ff8dd6a 611 return ret;
Wayne Roberts 0:9c052ff8dd6a 612 }
Wayne Roberts 0:9c052ff8dd6a 613
Wayne Roberts 0:9c052ff8dd6a 614 void Radio::Rx(unsigned timeout)
Wayne Roberts 0:9c052ff8dd6a 615 {
Wayne Roberts 7:ba81f66e56d1 616 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 617 RX_INDICATION = 1;
Wayne Roberts 7:ba81f66e56d1 618 #endif
Wayne Roberts 9:97a6de3dbc86 619 if (timeout == 0)
Wayne Roberts 9:97a6de3dbc86 620 radio.start_rx(0); // continuous rx
Wayne Roberts 9:97a6de3dbc86 621 else {
Wayne Roberts 9:97a6de3dbc86 622 radio.start_rx(rxTimeoutMs);
Wayne Roberts 9:97a6de3dbc86 623 }
Wayne Roberts 0:9c052ff8dd6a 624 }
Wayne Roberts 0:9c052ff8dd6a 625
Wayne Roberts 0:9c052ff8dd6a 626 void Radio::Standby()
Wayne Roberts 0:9c052ff8dd6a 627 {
Wayne Roberts 0:9c052ff8dd6a 628 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 629 }
Wayne Roberts 0:9c052ff8dd6a 630
Wayne Roberts 13:a354f82d12d9 631 #define TX_PWR_OFFSET 18
Wayne Roberts 0:9c052ff8dd6a 632 void Radio::set_tx_dbm(int8_t dbm)
Wayne Roberts 0:9c052ff8dd6a 633 {
Wayne Roberts 5:ab124d3842a8 634 if (dbm == PA_OFF_DBM) {
Wayne Roberts 5:ab124d3842a8 635 /* TODO: shut off PA */
Wayne Roberts 13:a354f82d12d9 636 radio.set_tx_dbm(0);
Wayne Roberts 5:ab124d3842a8 637 } else {
Wayne Roberts 13:a354f82d12d9 638 /* power range -18dBm to +13dBm */
Wayne Roberts 13:a354f82d12d9 639 radio.set_tx_dbm(dbm + TX_PWR_OFFSET);
Wayne Roberts 5:ab124d3842a8 640 }
Wayne Roberts 0:9c052ff8dd6a 641 }
Wayne Roberts 0:9c052ff8dd6a 642
Wayne Roberts 0:9c052ff8dd6a 643 void Radio::SetTxContinuousWave(unsigned hz, int8_t dbm, unsigned timeout_us)
Wayne Roberts 0:9c052ff8dd6a 644 {
Wayne Roberts 0:9c052ff8dd6a 645 SetChannel(hz);
Wayne Roberts 0:9c052ff8dd6a 646 radio.set_tx_dbm(dbm);
Wayne Roberts 0:9c052ff8dd6a 647 radio.xfer(OPCODE_SET_TX_CARRIER, 0, 0, NULL);
Wayne Roberts 0:9c052ff8dd6a 648 }
Wayne Roberts 0:9c052ff8dd6a 649
Wayne Roberts 1:e79b0a55135f 650 void Radio::SetRxMaxPayloadLength(uint8_t max)
Wayne Roberts 0:9c052ff8dd6a 651 {
Wayne Roberts 1:e79b0a55135f 652 uint8_t pktType = radio.getPacketType();
Wayne Roberts 1:e79b0a55135f 653
Wayne Roberts 1:e79b0a55135f 654 if (pktType == PACKET_TYPE_GFSK)
Wayne Roberts 0:9c052ff8dd6a 655 ppGFSK.gfskFLRC.PayloadLength = max;
Wayne Roberts 1:e79b0a55135f 656 else if (pktType == PACKET_TYPE_LORA)
Wayne Roberts 0:9c052ff8dd6a 657 ppLORA.lora.PayloadLength = max;
Wayne Roberts 0:9c052ff8dd6a 658 }
Wayne Roberts 0:9c052ff8dd6a 659
Wayne Roberts 0:9c052ff8dd6a 660 #endif /* ..SX126x_H */