Ilya Krylov / sx12xx_hal123

1

radio_sx128x.cpp@7:ba81f66e56d1, 2018-12-05 (annotated)

Committer:
Wayne Roberts
Date:
Wed Dec 05 15:04:48 2018 -0800
Revision:
7:ba81f66e56d1
Parent:
5:ab124d3842a8
Child:
8:0518c6e68b79
add instataneous rssi, rx indication on sx1280

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 0:9c052ff8dd6a 60 void Radio::readChip()
Wayne Roberts 0:9c052ff8dd6a 61 {
Wayne Roberts 0:9c052ff8dd6a 62 uint8_t reg8;
Wayne Roberts 0:9c052ff8dd6a 63
Wayne Roberts 0:9c052ff8dd6a 64 reg8 = radio.readReg(REG_ADDR_PKTCTRL0, 1);
Wayne Roberts 0:9c052ff8dd6a 65 ppGFSK.gfskFLRC.HeaderType = reg8 & 0x20;
Wayne Roberts 0:9c052ff8dd6a 66 ppFLRC.gfskFLRC.HeaderType = reg8 & 0x20;
Wayne Roberts 0:9c052ff8dd6a 67
Wayne Roberts 0:9c052ff8dd6a 68 reg8 = radio.readReg(REG_ADDR_PKTCTRL1, 1);
Wayne Roberts 0:9c052ff8dd6a 69 ppGFSK.gfskFLRC.PreambleLength = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 70 ppFLRC.gfskFLRC.PreambleLength = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 71 ppGFSK.gfskFLRC.SyncWordLength = reg8 & 0x0e;
Wayne Roberts 0:9c052ff8dd6a 72 ppFLRC.gfskFLRC.SyncWordLength = reg8 & 0x06;
Wayne Roberts 0:9c052ff8dd6a 73 if (ppFLRC.gfskFLRC.SyncWordLength == 0x06)
Wayne Roberts 0:9c052ff8dd6a 74 ppFLRC.gfskFLRC.SyncWordLength = FLRC_SYNC_WORD_LEN_P32S;
Wayne Roberts 0:9c052ff8dd6a 75
Wayne Roberts 0:9c052ff8dd6a 76 reg8 = radio.readReg(REG_ADDR_PKT_SYNC_ADRS_CTRL, 1);
Wayne Roberts 0:9c052ff8dd6a 77 ppGFSK.gfskFLRC.SyncWordMatch = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 78 ppFLRC.gfskFLRC.SyncWordMatch = reg8 & 0x70;
Wayne Roberts 0:9c052ff8dd6a 79
Wayne Roberts 0:9c052ff8dd6a 80 reg8 = radio.readReg(REG_ADDR_PAYLOAD_LEN, 1);
Wayne Roberts 0:9c052ff8dd6a 81 ppGFSK.gfskFLRC.PayloadLength = reg8;
Wayne Roberts 0:9c052ff8dd6a 82 ppFLRC.gfskFLRC.PayloadLength = reg8;
Wayne Roberts 0:9c052ff8dd6a 83
Wayne Roberts 0:9c052ff8dd6a 84 reg8 = radio.readReg(REG_ADDR_PKT_TX_HEADER, 1); // TODO hi bit of payload length
Wayne Roberts 0:9c052ff8dd6a 85 //ppBLE.ble.ConnectionState = reg8 & 0xe0;
Wayne Roberts 0:9c052ff8dd6a 86 //ppBLE.ble.BleTestPayload = reg8 & 0x1c;
Wayne Roberts 0:9c052ff8dd6a 87
Wayne Roberts 0:9c052ff8dd6a 88 reg8 = radio.readReg(REG_ADDR_PKT_BITSTREAM_CTRL, 1);
Wayne Roberts 0:9c052ff8dd6a 89 //ppBLE.ble.CrcLength = reg8 & 0x30;
Wayne Roberts 0:9c052ff8dd6a 90 //ppBLE.ble.Whitening = reg8 & 0x08;
Wayne Roberts 0:9c052ff8dd6a 91 ppGFSK.gfskFLRC.CRCLength = reg8 & 0x30;
Wayne Roberts 0:9c052ff8dd6a 92 ppFLRC.gfskFLRC.CRCLength = reg8 & 0x30;
Wayne Roberts 0:9c052ff8dd6a 93 ppGFSK.gfskFLRC.Whitening = reg8 & 0x08;
Wayne Roberts 0:9c052ff8dd6a 94 ppFLRC.gfskFLRC.Whitening = reg8 & 0x08;
Wayne Roberts 0:9c052ff8dd6a 95
Wayne Roberts 0:9c052ff8dd6a 96 {
Wayne Roberts 0:9c052ff8dd6a 97 LoRaPktPar0_t LoRaPktPar0;
Wayne Roberts 0:9c052ff8dd6a 98 LoRaPktPar0.octet = radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:9c052ff8dd6a 99 switch (LoRaPktPar0.bits.modem_bw) {
Wayne Roberts 0:9c052ff8dd6a 100 case 2: mpLORA.lora.bandwidth = LORA_BW_200; break;
Wayne Roberts 0:9c052ff8dd6a 101 case 3: mpLORA.lora.bandwidth = LORA_BW_400; break;
Wayne Roberts 0:9c052ff8dd6a 102 case 4: mpLORA.lora.bandwidth = LORA_BW_800; break;
Wayne Roberts 0:9c052ff8dd6a 103 case 5: mpLORA.lora.bandwidth = LORA_BW_1600; break;
Wayne Roberts 0:9c052ff8dd6a 104 }
Wayne Roberts 0:9c052ff8dd6a 105 mpLORA.lora.spreadingFactor = LoRaPktPar0.bits.modem_sf << 4;
Wayne Roberts 0:9c052ff8dd6a 106 }
Wayne Roberts 0:9c052ff8dd6a 107
Wayne Roberts 0:9c052ff8dd6a 108 {
Wayne Roberts 0:9c052ff8dd6a 109 LoRaPktPar1_t LoRaPktPar1;
Wayne Roberts 0:9c052ff8dd6a 110 LoRaPktPar1.octet = radio.readReg(REG_ADDR_LORA_PKTPAR1, 1);
Wayne Roberts 0:9c052ff8dd6a 111 mpLORA.lora.codingRate = LoRaPktPar1.bits.coding_rate;
Wayne Roberts 1:e79b0a55135f 112 ppLORA.lora.InvertIQ = LoRaPktPar1.octet & LORA_IQ_STD; // LoRaPktPar1.bits.rxinvert_iq
Wayne Roberts 1:e79b0a55135f 113 ppLORA.lora.HeaderType = LoRaPktPar1.bits.implicit_header ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 0:9c052ff8dd6a 114 // LoRaPktPar1.bits.ppm_offset
Wayne Roberts 0:9c052ff8dd6a 115 }
Wayne Roberts 0:9c052ff8dd6a 116
Wayne Roberts 0:9c052ff8dd6a 117 {
Wayne Roberts 0:9c052ff8dd6a 118 LoRaPreambleReg_t LoRaPreambleReg;
Wayne Roberts 0:9c052ff8dd6a 119 LoRaPreambleReg.octet = radio.readReg(REG_ADDR_LORA_PREAMBLE, 1);
Wayne Roberts 0:9c052ff8dd6a 120 ppLORA.lora.PreambleLength = LoRaPreambleReg.bits.preamble_symb1_nb * (1 << LoRaPreambleReg.bits.preamble_symb_nb_exp);
Wayne Roberts 0:9c052ff8dd6a 121 }
Wayne Roberts 0:9c052ff8dd6a 122 ppLORA.lora.PayloadLength = radio.readReg(REG_ADDR_LORA_TX_PAYLOAD_LENGTH, 1);
Wayne Roberts 0:9c052ff8dd6a 123
Wayne Roberts 0:9c052ff8dd6a 124 {
Wayne Roberts 0:9c052ff8dd6a 125 LoRaLrCtl_t LoRaLrCtl;
Wayne Roberts 0:9c052ff8dd6a 126 LoRaLrCtl.octet = radio.readReg(REG_ADDR_LORA_LRCTL, 1);
Wayne Roberts 0:9c052ff8dd6a 127 ppLORA.lora.crc = LoRaLrCtl.octet & 0x20; // LoRaLrCtl.bits.crc_en
Wayne Roberts 0:9c052ff8dd6a 128 }
Wayne Roberts 0:9c052ff8dd6a 129
Wayne Roberts 0:9c052ff8dd6a 130 {
Wayne Roberts 0:9c052ff8dd6a 131 RegRxBw_t RegRxBw;
Wayne Roberts 0:9c052ff8dd6a 132 unsigned bps;
Wayne Roberts 0:9c052ff8dd6a 133 FloraPreambleHi_t FloraPreambleHi;
Wayne Roberts 0:9c052ff8dd6a 134 float mi, fdev_hz;
Wayne Roberts 0:9c052ff8dd6a 135 unsigned freqDev;
Wayne Roberts 0:9c052ff8dd6a 136 FskModDfH_t FskModDfH;
Wayne Roberts 0:9c052ff8dd6a 137 FskModDfH.octet = radio.readReg(REG_ADDR_FSK_MODDFH, 1);
Wayne Roberts 0:9c052ff8dd6a 138 freqDev = FskModDfH.bits.freqDev;
Wayne Roberts 0:9c052ff8dd6a 139 freqDev <<= 8;
Wayne Roberts 0:9c052ff8dd6a 140 freqDev |= radio.readReg(REG_ADDR_FSK_MODDFL, 1);
Wayne Roberts 0:9c052ff8dd6a 141 fdev_hz = freqDev * PLL_STEP_HZ;
Wayne Roberts 0:9c052ff8dd6a 142
Wayne Roberts 0:9c052ff8dd6a 143 FloraPreambleHi.octet = radio.readReg(REG_ADDR_FLORA_PREAMBLE_HI, 1);
Wayne Roberts 0:9c052ff8dd6a 144 switch (FloraPreambleHi.bits.data_rate) {
Wayne Roberts 0:9c052ff8dd6a 145 case 0:
Wayne Roberts 0:9c052ff8dd6a 146 bps = 2.0e6;
Wayne Roberts 0:9c052ff8dd6a 147 //mpFLRC.flrc.bitrateBandwidth = ??; // 2.6
Wayne Roberts 0:9c052ff8dd6a 148 break;
Wayne Roberts 0:9c052ff8dd6a 149 case 1:
Wayne Roberts 0:9c052ff8dd6a 150 bps = 1.6e6;
Wayne Roberts 0:9c052ff8dd6a 151 //mpFLRC.flrc.bitrateBandwidth = ??; // 2.08
Wayne Roberts 0:9c052ff8dd6a 152 break;
Wayne Roberts 0:9c052ff8dd6a 153 case 2:
Wayne Roberts 0:9c052ff8dd6a 154 bps = 1.0e6;
Wayne Roberts 0:9c052ff8dd6a 155 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_1_300_BW_1_2; // 1.3
Wayne Roberts 0:9c052ff8dd6a 156 break;
Wayne Roberts 0:9c052ff8dd6a 157 case 3:
Wayne Roberts 0:9c052ff8dd6a 158 bps = 0.8e6;
Wayne Roberts 0:9c052ff8dd6a 159 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_1_000_BW_1_2; // 1.04
Wayne Roberts 0:9c052ff8dd6a 160 break;
Wayne Roberts 0:9c052ff8dd6a 161 case 4:
Wayne Roberts 0:9c052ff8dd6a 162 bps = 0.5e6;
Wayne Roberts 0:9c052ff8dd6a 163 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_650_BW_0_6; // 0.65
Wayne Roberts 0:9c052ff8dd6a 164 break;
Wayne Roberts 0:9c052ff8dd6a 165 case 5:
Wayne Roberts 0:9c052ff8dd6a 166 bps = 0.4e6;
Wayne Roberts 0:9c052ff8dd6a 167 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_520_BW_0_6; // 0.52
Wayne Roberts 0:9c052ff8dd6a 168 break;
Wayne Roberts 0:9c052ff8dd6a 169 case 6:
Wayne Roberts 0:9c052ff8dd6a 170 bps = 0.25e6;
Wayne Roberts 0:9c052ff8dd6a 171 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_325_BW_0_3; // 0.325
Wayne Roberts 0:9c052ff8dd6a 172 break;
Wayne Roberts 0:9c052ff8dd6a 173 case 7:
Wayne Roberts 0:9c052ff8dd6a 174 bps = 0.125e6;
Wayne Roberts 0:9c052ff8dd6a 175 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_260_BW_0_3; // 0.26
Wayne Roberts 0:9c052ff8dd6a 176 break;
Wayne Roberts 0:9c052ff8dd6a 177 }
Wayne Roberts 0:9c052ff8dd6a 178
Wayne Roberts 0:9c052ff8dd6a 179 mi = (fdev_hz * 2.0) / bps;
Wayne Roberts 0:9c052ff8dd6a 180 if (mi > 0.35) {
Wayne Roberts 0:9c052ff8dd6a 181 mi -= 0.5;
Wayne Roberts 0:9c052ff8dd6a 182 mi /= 0.25;
Wayne Roberts 0:9c052ff8dd6a 183 mpBLE_GFSK.gfskBle.ModulationIndex = ((uint8_t)mi) + 1;
Wayne Roberts 0:9c052ff8dd6a 184 } else
Wayne Roberts 0:9c052ff8dd6a 185 mpBLE_GFSK.gfskBle.ModulationIndex = 0;
Wayne Roberts 0:9c052ff8dd6a 186
Wayne Roberts 0:9c052ff8dd6a 187 RegRxBw.octet = radio.readReg(REG_ADDR_RXBW, 1);
Wayne Roberts 0:9c052ff8dd6a 188
Wayne Roberts 0:9c052ff8dd6a 189 switch (RegRxBw.bits.bw) {
Wayne Roberts 0:9c052ff8dd6a 190 case 0:
Wayne Roberts 0:9c052ff8dd6a 191 if (FloraPreambleHi.bits.data_rate == 0)
Wayne Roberts 0:9c052ff8dd6a 192 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_2_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 193 if (FloraPreambleHi.bits.data_rate == 1)
Wayne Roberts 0:9c052ff8dd6a 194 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_600_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 195 if (FloraPreambleHi.bits.data_rate == 2)
Wayne Roberts 0:9c052ff8dd6a 196 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 197 if (FloraPreambleHi.bits.data_rate == 3)
Wayne Roberts 0:9c052ff8dd6a 198 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_800_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 199 break;
Wayne Roberts 0:9c052ff8dd6a 200 case 1:
Wayne Roberts 0:9c052ff8dd6a 201 if (FloraPreambleHi.bits.data_rate == 2)
Wayne Roberts 0:9c052ff8dd6a 202 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_000_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 203 if (FloraPreambleHi.bits.data_rate == 3)
Wayne Roberts 0:9c052ff8dd6a 204 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_800_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 205 if (FloraPreambleHi.bits.data_rate == 4)
Wayne Roberts 0:9c052ff8dd6a 206 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_500_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 207 if (FloraPreambleHi.bits.data_rate == 5)
Wayne Roberts 0:9c052ff8dd6a 208 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_400_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 209 break;
Wayne Roberts 0:9c052ff8dd6a 210 case 2:
Wayne Roberts 0:9c052ff8dd6a 211 if (FloraPreambleHi.bits.data_rate == 4)
Wayne Roberts 0:9c052ff8dd6a 212 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_500_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 213 if (FloraPreambleHi.bits.data_rate == 5)
Wayne Roberts 0:9c052ff8dd6a 214 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_400_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 215 if (FloraPreambleHi.bits.data_rate == 6)
Wayne Roberts 0:9c052ff8dd6a 216 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_250_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 217 break;
Wayne Roberts 0:9c052ff8dd6a 218 case 3:
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_3;
Wayne Roberts 0:9c052ff8dd6a 221 if (FloraPreambleHi.bits.data_rate == 7)
Wayne Roberts 0:9c052ff8dd6a 222 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_125_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 223 break;
Wayne Roberts 0:9c052ff8dd6a 224 }
Wayne Roberts 0:9c052ff8dd6a 225 mpBLE_GFSK.gfskBle.bitrateBandwidth = reg8;
Wayne Roberts 0:9c052ff8dd6a 226 }
Wayne Roberts 0:9c052ff8dd6a 227
Wayne Roberts 0:9c052ff8dd6a 228 {
Wayne Roberts 0:9c052ff8dd6a 229 FskCfg_t FskCfg;
Wayne Roberts 0:9c052ff8dd6a 230 FskCfg.octet = radio.readReg(REG_ADDR_FSK_CFG, 1);
Wayne Roberts 0:9c052ff8dd6a 231 mpBLE_GFSK.gfskBle.ModulationShaping = FskCfg.bits.gf_bt << 4;
Wayne Roberts 0:9c052ff8dd6a 232 mpFLRC.flrc.ModulationShaping = mpBLE_GFSK.gfskBle.ModulationShaping;
Wayne Roberts 0:9c052ff8dd6a 233 }
Wayne Roberts 0:9c052ff8dd6a 234
Wayne Roberts 0:9c052ff8dd6a 235 {
Wayne Roberts 0:9c052ff8dd6a 236 PktBitStreamCtrl_t PktBitStreamCtrl;
Wayne Roberts 0:9c052ff8dd6a 237 PktBitStreamCtrl.octet = radio.readReg(REG_ADDR_PKT_BITSTREAM_CTRL, 1);
Wayne Roberts 0:9c052ff8dd6a 238 mpFLRC.flrc.CodingRate = PktBitStreamCtrl.octet & 0x06; // PktBitStreamCtrl.bits.flora_coding_rate
Wayne Roberts 0:9c052ff8dd6a 239 }
Wayne Roberts 0:9c052ff8dd6a 240
Wayne Roberts 0:9c052ff8dd6a 241 }
Wayne Roberts 0:9c052ff8dd6a 242
Wayne Roberts 0:9c052ff8dd6a 243 void Radio:: diox_top_half()
Wayne Roberts 0:9c052ff8dd6a 244 {
Wayne Roberts 0:9c052ff8dd6a 245 irqAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 246
Wayne Roberts 0:9c052ff8dd6a 247 if (radio.chipMode == CHIPMODE_TX) {
Wayne Roberts 0:9c052ff8dd6a 248 /* TxDone handling requires low latency */
Wayne Roberts 0:9c052ff8dd6a 249 if (RadioEvents->TxDone_topHalf) {
Wayne Roberts 0:9c052ff8dd6a 250 RadioEvents->TxDone_topHalf();
Wayne Roberts 0:9c052ff8dd6a 251 }
Wayne Roberts 7:ba81f66e56d1 252 } else {
Wayne Roberts 7:ba81f66e56d1 253 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 254 RX_INDICATION = 0;
Wayne Roberts 7:ba81f66e56d1 255 #endif
Wayne Roberts 0:9c052ff8dd6a 256 }
Wayne Roberts 0:9c052ff8dd6a 257 }
Wayne Roberts 0:9c052ff8dd6a 258
Wayne Roberts 0:9c052ff8dd6a 259 void Radio::rxDone(uint8_t size, const pktStatus_t* pktStatus)
Wayne Roberts 0:9c052ff8dd6a 260 {
Wayne Roberts 0:9c052ff8dd6a 261 float rssi, snr;
Wayne Roberts 0:9c052ff8dd6a 262
Wayne Roberts 0:9c052ff8dd6a 263 if (pktStatus->ble_gfsk_flrc.sync.syncAddrsCode == 0) {
Wayne Roberts 0:9c052ff8dd6a 264 int8_t s = pktStatus->lora.snr;
Wayne Roberts 0:9c052ff8dd6a 265 rssi = -pktStatus->lora.rssiSync / 2.0;
Wayne Roberts 0:9c052ff8dd6a 266 snr = s / 4.0;
Wayne Roberts 0:9c052ff8dd6a 267 } else {
Wayne Roberts 0:9c052ff8dd6a 268 rssi = -pktStatus->ble_gfsk_flrc.rssiSync / 2.0;
Wayne Roberts 0:9c052ff8dd6a 269 snr = FLT_MIN;
Wayne Roberts 0:9c052ff8dd6a 270 }
Wayne Roberts 0:9c052ff8dd6a 271
Wayne Roberts 0:9c052ff8dd6a 272 RadioEvents->RxDone(size, rssi, snr);
Wayne Roberts 0:9c052ff8dd6a 273 }
Wayne Roberts 0:9c052ff8dd6a 274
Wayne Roberts 0:9c052ff8dd6a 275 void Radio::timeout_callback(bool tx)
Wayne Roberts 0:9c052ff8dd6a 276 {
Wayne Roberts 0:9c052ff8dd6a 277 if (!tx) {
Wayne Roberts 0:9c052ff8dd6a 278 if (RadioEvents->RxTimeout)
Wayne Roberts 0:9c052ff8dd6a 279 RadioEvents->RxTimeout();
Wayne Roberts 7:ba81f66e56d1 280 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 281 RX_INDICATION = 0;
Wayne Roberts 7:ba81f66e56d1 282 #endif
Wayne Roberts 0:9c052ff8dd6a 283 } // else TODO tx timeout
Wayne Roberts 0:9c052ff8dd6a 284 }
Wayne Roberts 0:9c052ff8dd6a 285
Wayne Roberts 0:9c052ff8dd6a 286 void Radio::txDoneBottom()
Wayne Roberts 0:9c052ff8dd6a 287 {
Wayne Roberts 0:9c052ff8dd6a 288 if (RadioEvents->TxDone_botHalf)
Wayne Roberts 0:9c052ff8dd6a 289 RadioEvents->TxDone_botHalf();
Wayne Roberts 0:9c052ff8dd6a 290 }
Wayne Roberts 0:9c052ff8dd6a 291
Wayne Roberts 0:9c052ff8dd6a 292 void Radio::Init(const RadioEvents_t* e)
Wayne Roberts 0:9c052ff8dd6a 293 {
Wayne Roberts 0:9c052ff8dd6a 294 uint64_t sa;
Wayne Roberts 0:9c052ff8dd6a 295
Wayne Roberts 0:9c052ff8dd6a 296 radio.txDone = txDoneBottom;
Wayne Roberts 0:9c052ff8dd6a 297 radio.rxDone = rxDone;
Wayne Roberts 0:9c052ff8dd6a 298 radio.timeout = timeout_callback;
Wayne Roberts 0:9c052ff8dd6a 299 radio.chipModeChange = chipModeChange;
Wayne Roberts 0:9c052ff8dd6a 300 radio.diox_topHalf = diox_top_half;
Wayne Roberts 0:9c052ff8dd6a 301
Wayne Roberts 0:9c052ff8dd6a 302 readChip();
Wayne Roberts 0:9c052ff8dd6a 303
Wayne Roberts 0:9c052ff8dd6a 304 radio.setRegulator(0); // default to LDO
Wayne Roberts 0:9c052ff8dd6a 305
Wayne Roberts 0:9c052ff8dd6a 306 sa = 0xc194c1;
Wayne Roberts 0:9c052ff8dd6a 307 radio.setSyncAddr(1, sa);
Wayne Roberts 0:9c052ff8dd6a 308
Wayne Roberts 0:9c052ff8dd6a 309 RadioEvents = e;
Wayne Roberts 0:9c052ff8dd6a 310 lpt.start();
Wayne Roberts 0:9c052ff8dd6a 311
Wayne Roberts 0:9c052ff8dd6a 312 fe_enable = true;
Wayne Roberts 0:9c052ff8dd6a 313
Wayne Roberts 0:9c052ff8dd6a 314 radio.periodBase = 2; // 1ms resolution
Wayne Roberts 0:9c052ff8dd6a 315 }
Wayne Roberts 0:9c052ff8dd6a 316
Wayne Roberts 7:ba81f66e56d1 317 float Radio::GetRssiInst()
Wayne Roberts 7:ba81f66e56d1 318 {
Wayne Roberts 7:ba81f66e56d1 319 uint8_t buf[2];
Wayne Roberts 7:ba81f66e56d1 320 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 7:ba81f66e56d1 321 return buf[1] / -2.0;
Wayne Roberts 7:ba81f66e56d1 322 }
Wayne Roberts 7:ba81f66e56d1 323
Wayne Roberts 0:9c052ff8dd6a 324 int Radio::Send(uint8_t size, timestamp_t maxListenTime, timestamp_t channelFreeTime, int rssiThresh)
Wayne Roberts 0:9c052ff8dd6a 325 {
Wayne Roberts 0:9c052ff8dd6a 326 uint8_t buf[8];
Wayne Roberts 1:e79b0a55135f 327 uint8_t pktType = radio.getPacketType();
Wayne Roberts 0:9c052ff8dd6a 328
Wayne Roberts 1:e79b0a55135f 329 if (pktType == PACKET_TYPE_LORA) {
Wayne Roberts 1:e79b0a55135f 330 ppLORA.lora.PayloadLength = size;
Wayne Roberts 1:e79b0a55135f 331 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 1:e79b0a55135f 332 } else if (pktType == PACKET_TYPE_GFSK) {
Wayne Roberts 0:9c052ff8dd6a 333 ppGFSK.gfskFLRC.PayloadLength = size;
Wayne Roberts 0:9c052ff8dd6a 334 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 335 }
Wayne Roberts 0:9c052ff8dd6a 336
Wayne Roberts 0:9c052ff8dd6a 337 if (maxListenTime > 0) {
Wayne Roberts 0:9c052ff8dd6a 338 int rssi;
Wayne Roberts 0:9c052ff8dd6a 339 us_timestamp_t startAt, chFreeAt, now;
Wayne Roberts 0:9c052ff8dd6a 340 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 341 startAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 342 Lstart:
Wayne Roberts 0:9c052ff8dd6a 343 do {
Wayne Roberts 0:9c052ff8dd6a 344 now = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 345 if ((now - startAt) > maxListenTime) {
Wayne Roberts 0:9c052ff8dd6a 346 return -1;
Wayne Roberts 0:9c052ff8dd6a 347 }
Wayne Roberts 0:9c052ff8dd6a 348 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 349 rssi = buf[1] / -2;
Wayne Roberts 0:9c052ff8dd6a 350 } while (rssi > rssiThresh);
Wayne Roberts 0:9c052ff8dd6a 351 chFreeAt = lpt.read_us();
Wayne Roberts 0:9c052ff8dd6a 352 do {
Wayne Roberts 0:9c052ff8dd6a 353 now = lpt.read_us();
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 if (rssi > rssiThresh) {
Wayne Roberts 0:9c052ff8dd6a 357 goto Lstart;
Wayne Roberts 0:9c052ff8dd6a 358 }
Wayne Roberts 0:9c052ff8dd6a 359 } while ((now - chFreeAt) < channelFreeTime);
Wayne Roberts 0:9c052ff8dd6a 360 }
Wayne Roberts 0:9c052ff8dd6a 361
Wayne Roberts 0:9c052ff8dd6a 362 radio.start_tx(size, 4000);
Wayne Roberts 0:9c052ff8dd6a 363
Wayne Roberts 0:9c052ff8dd6a 364 return 0;
Wayne Roberts 0:9c052ff8dd6a 365 }
Wayne Roberts 0:9c052ff8dd6a 366
Wayne Roberts 0:9c052ff8dd6a 367 void Radio::service()
Wayne Roberts 0:9c052ff8dd6a 368 {
Wayne Roberts 0:9c052ff8dd6a 369 radio.service();
Wayne Roberts 0:9c052ff8dd6a 370 }
Wayne Roberts 0:9c052ff8dd6a 371
Wayne Roberts 0:9c052ff8dd6a 372 bool Radio::CheckRfFrequency(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 373 {
Wayne Roberts 0:9c052ff8dd6a 374 return true;
Wayne Roberts 0:9c052ff8dd6a 375 }
Wayne Roberts 0:9c052ff8dd6a 376
Wayne Roberts 0:9c052ff8dd6a 377 void Radio::Sleep()
Wayne Roberts 0:9c052ff8dd6a 378 {
Wayne Roberts 0:9c052ff8dd6a 379 radio.setSleep(true);
Wayne Roberts 0:9c052ff8dd6a 380 }
Wayne Roberts 0:9c052ff8dd6a 381
Wayne Roberts 0:9c052ff8dd6a 382 void Radio::SetPublicNetwork(bool en)
Wayne Roberts 0:9c052ff8dd6a 383 {
Wayne Roberts 0:9c052ff8dd6a 384 uint16_t ppg;
Wayne Roberts 0:9c052ff8dd6a 385
Wayne Roberts 0:9c052ff8dd6a 386 if (en)
Wayne Roberts 0:9c052ff8dd6a 387 ppg = 0x3444;
Wayne Roberts 0:9c052ff8dd6a 388 else
Wayne Roberts 0:9c052ff8dd6a 389 ppg = 0x1424;
Wayne Roberts 0:9c052ff8dd6a 390
Wayne Roberts 0:9c052ff8dd6a 391 radio.writeReg(REG_ADDR_LORA_SYNC, ppg, 2);
Wayne Roberts 0:9c052ff8dd6a 392 }
Wayne Roberts 0:9c052ff8dd6a 393
Wayne Roberts 0:9c052ff8dd6a 394 uint32_t Radio::lora_toa_us( uint8_t pktLen )
Wayne Roberts 0:9c052ff8dd6a 395 {
Wayne Roberts 0:9c052ff8dd6a 396 double bwKHz;
Wayne Roberts 0:9c052ff8dd6a 397 LoRaPktPar0_t LoRaPktPar0;
Wayne Roberts 0:9c052ff8dd6a 398 LoRaLrCtl_t LoRaLrCtl;
Wayne Roberts 0:9c052ff8dd6a 399 LoRaPktPar1_t LoRaPktPar1;
Wayne Roberts 0:9c052ff8dd6a 400 uint8_t LowDatarateOptimize;
Wayne Roberts 0:9c052ff8dd6a 401
Wayne Roberts 0:9c052ff8dd6a 402 {
Wayne Roberts 0:9c052ff8dd6a 403 LoRaPktPar1.octet = radio.readReg(REG_ADDR_LORA_PKTPAR1, 1);
Wayne Roberts 0:9c052ff8dd6a 404 LowDatarateOptimize = LoRaPktPar1.bits.ppm_offset ? 1 : 0;
Wayne Roberts 1:e79b0a55135f 405 ppLORA.lora.HeaderType = LoRaPktPar1.bits.implicit_header ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 1:e79b0a55135f 406 ppLORA.lora.InvertIQ = LoRaPktPar1.octet & LORA_IQ_STD; // LoRaPktPar1.bits.rxinvert_iq
Wayne Roberts 0:9c052ff8dd6a 407 mpLORA.lora.codingRate = LoRaPktPar1.bits.coding_rate;
Wayne Roberts 0:9c052ff8dd6a 408 }
Wayne Roberts 0:9c052ff8dd6a 409
Wayne Roberts 0:9c052ff8dd6a 410 {
Wayne Roberts 0:9c052ff8dd6a 411 LoRaLrCtl.octet = radio.readReg(REG_ADDR_LORA_LRCTL, 1);
Wayne Roberts 0:9c052ff8dd6a 412 ppLORA.lora.crc = LoRaLrCtl.octet & 0x20; // LoRaLrCtl.bits.crc_en
Wayne Roberts 0:9c052ff8dd6a 413 }
Wayne Roberts 0:9c052ff8dd6a 414
Wayne Roberts 0:9c052ff8dd6a 415 {
Wayne Roberts 0:9c052ff8dd6a 416 LoRaPreambleReg_t LoRaPreambleReg;
Wayne Roberts 0:9c052ff8dd6a 417 LoRaPreambleReg.octet = radio.readReg(REG_ADDR_LORA_PREAMBLE, 1);
Wayne Roberts 0:9c052ff8dd6a 418 ppLORA.lora.PreambleLength = LoRaPreambleReg.bits.preamble_symb1_nb * (1 << LoRaPreambleReg.bits.preamble_symb_nb_exp);
Wayne Roberts 0:9c052ff8dd6a 419 }
Wayne Roberts 0:9c052ff8dd6a 420
Wayne Roberts 0:9c052ff8dd6a 421 {
Wayne Roberts 0:9c052ff8dd6a 422 LoRaPktPar0.octet = radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:9c052ff8dd6a 423 switch (LoRaPktPar0.bits.modem_bw) {
Wayne Roberts 0:9c052ff8dd6a 424 case 0: bwKHz = 50; break;
Wayne Roberts 0:9c052ff8dd6a 425 case 1: bwKHz = 100; break;
Wayne Roberts 0:9c052ff8dd6a 426 case 2: mpLORA.lora.bandwidth = LORA_BW_200; bwKHz = 200; break;
Wayne Roberts 0:9c052ff8dd6a 427 case 3: mpLORA.lora.bandwidth = LORA_BW_400; bwKHz = 400; break;
Wayne Roberts 0:9c052ff8dd6a 428 case 4: mpLORA.lora.bandwidth = LORA_BW_800; bwKHz = 800; break;
Wayne Roberts 0:9c052ff8dd6a 429 case 5: mpLORA.lora.bandwidth = LORA_BW_1600; bwKHz = 1600; break;
Wayne Roberts 0:9c052ff8dd6a 430 default: bwKHz = 0; break;
Wayne Roberts 0:9c052ff8dd6a 431 }
Wayne Roberts 0:9c052ff8dd6a 432 mpLORA.lora.spreadingFactor = LoRaPktPar0.bits.modem_sf << 4;
Wayne Roberts 0:9c052ff8dd6a 433 }
Wayne Roberts 0:9c052ff8dd6a 434
Wayne Roberts 0:9c052ff8dd6a 435 // Symbol rate : time for one symbol (secs)
Wayne Roberts 0:9c052ff8dd6a 436 double rs = bwKHz / (1 << LoRaPktPar0.bits.modem_sf);
Wayne Roberts 0:9c052ff8dd6a 437 double ts = 1 / rs;
Wayne Roberts 0:9c052ff8dd6a 438 // time of preamble
Wayne Roberts 0:9c052ff8dd6a 439 //
Wayne Roberts 0:9c052ff8dd6a 440 double tPreamble = ( ppLORA.lora.PreambleLength + 4.25 ) * ts;
Wayne Roberts 0:9c052ff8dd6a 441 // Symbol length of payload and time
Wayne Roberts 0:9c052ff8dd6a 442
Wayne Roberts 0:9c052ff8dd6a 443 double tmp = ceil( ( 8 * pktLen - 4 * LoRaPktPar0.bits.modem_sf +
Wayne Roberts 0:9c052ff8dd6a 444 28 + 16 * LoRaLrCtl.bits.crc_en -
Wayne Roberts 0:9c052ff8dd6a 445 ( LoRaPktPar1.bits.implicit_header ? 20 : 0 ) ) /
Wayne Roberts 0:9c052ff8dd6a 446 ( double )( 4 * ( LoRaPktPar0.bits.modem_sf -
Wayne Roberts 0:9c052ff8dd6a 447 ( ( LowDatarateOptimize > 0 ) ? 2 : 0 ) ) ) ) *
Wayne Roberts 0:9c052ff8dd6a 448 ( LoRaPktPar1.bits.coding_rate + 4 );
Wayne Roberts 0:9c052ff8dd6a 449
Wayne Roberts 0:9c052ff8dd6a 450 double nPayload = 8 + ( ( tmp > 0 ) ? tmp : 0 );
Wayne Roberts 0:9c052ff8dd6a 451 double tPayload = nPayload * ts;
Wayne Roberts 0:9c052ff8dd6a 452 // Time on air
Wayne Roberts 0:9c052ff8dd6a 453 double tOnAir = tPreamble + tPayload;
Wayne Roberts 0:9c052ff8dd6a 454 // return microseconds
Wayne Roberts 0:9c052ff8dd6a 455 return floor( tOnAir * 1000 + 0.999 );
Wayne Roberts 0:9c052ff8dd6a 456 }
Wayne Roberts 0:9c052ff8dd6a 457
Wayne Roberts 0:9c052ff8dd6a 458 void Radio::GFSKModemConfig(unsigned bps, unsigned bw_hz, unsigned fdev_hz)
Wayne Roberts 0:9c052ff8dd6a 459 {
Wayne Roberts 0:9c052ff8dd6a 460 uint8_t u8;
Wayne Roberts 0:9c052ff8dd6a 461 float mi, Mbps = bps / 1000000.0;
Wayne Roberts 0:9c052ff8dd6a 462
Wayne Roberts 0:9c052ff8dd6a 463 if (Mbps > 1.6) {
Wayne Roberts 0:9c052ff8dd6a 464 /* 2.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 465 u8 = GFSK_BLE_BR_2_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 466 } else if (Mbps > 1.0) {
Wayne Roberts 0:9c052ff8dd6a 467 /* 1.6Mbps */
Wayne Roberts 0:9c052ff8dd6a 468 u8 = GFSK_BLE_BR_1_600_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 469 } else if (Mbps > 0.8) {
Wayne Roberts 0:9c052ff8dd6a 470 /* 1.0Mbps */
Wayne Roberts 0:9c052ff8dd6a 471 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 472 u8 = GFSK_BLE_BR_1_000_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 473 else*/
Wayne Roberts 0:9c052ff8dd6a 474 u8 = GFSK_BLE_BR_1_000_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 475 } else if (Mbps > 0.5) {
Wayne Roberts 0:9c052ff8dd6a 476 /* 0.8Mbps */
Wayne Roberts 0:9c052ff8dd6a 477 /*if (bwMHz > 1.2)
Wayne Roberts 0:9c052ff8dd6a 478 u8 = GFSK_BLE_BR_0_800_BW_2_4;
Wayne Roberts 0:9c052ff8dd6a 479 else*/
Wayne Roberts 0:9c052ff8dd6a 480 u8 = GFSK_BLE_BR_0_800_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 481 } else if (Mbps > 0.4) {
Wayne Roberts 0:9c052ff8dd6a 482 /* 0.5Mbps */
Wayne Roberts 0:9c052ff8dd6a 483 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 484 u8 = GFSK_BLE_BR_0_500_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 485 else*/
Wayne Roberts 0:9c052ff8dd6a 486 u8 = GFSK_BLE_BR_0_500_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 487 } else if (Mbps > 0.25) {
Wayne Roberts 0:9c052ff8dd6a 488 /* 0.4Mbps */
Wayne Roberts 0:9c052ff8dd6a 489 /*if (bwMHz > 0.6)
Wayne Roberts 0:9c052ff8dd6a 490 u8 = GFSK_BLE_BR_0_400_BW_1_2;
Wayne Roberts 0:9c052ff8dd6a 491 else*/
Wayne Roberts 0:9c052ff8dd6a 492 u8 = GFSK_BLE_BR_0_400_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 493 } else if (Mbps > 0.125) {
Wayne Roberts 0:9c052ff8dd6a 494 /* 0.25Mbps */
Wayne Roberts 0:9c052ff8dd6a 495 /*if (bwMHz > 0.3)
Wayne Roberts 0:9c052ff8dd6a 496 u8 = GFSK_BLE_BR_0_250_BW_0_6;
Wayne Roberts 0:9c052ff8dd6a 497 else*/
Wayne Roberts 0:9c052ff8dd6a 498 u8 = GFSK_BLE_BR_0_250_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 499 } else {
Wayne Roberts 0:9c052ff8dd6a 500 /* 0.125Mbps */
Wayne Roberts 0:9c052ff8dd6a 501 u8 = GFSK_BLE_BR_0_125_BW_0_3;
Wayne Roberts 0:9c052ff8dd6a 502 }
Wayne Roberts 0:9c052ff8dd6a 503
Wayne Roberts 0:9c052ff8dd6a 504 mpBLE_GFSK.gfskBle.bitrateBandwidth = u8;
Wayne Roberts 0:9c052ff8dd6a 505
Wayne Roberts 0:9c052ff8dd6a 506 mpBLE_GFSK.gfskBle.ModulationShaping = BT_OFF;
Wayne Roberts 0:9c052ff8dd6a 507
Wayne Roberts 0:9c052ff8dd6a 508 mi = (fdev_hz * 2.0) / bps;
Wayne Roberts 0:9c052ff8dd6a 509 if (mi > 0.35) {
Wayne Roberts 0:9c052ff8dd6a 510 mi -= 0.5;
Wayne Roberts 0:9c052ff8dd6a 511 mi /= 0.25;
Wayne Roberts 0:9c052ff8dd6a 512 mpBLE_GFSK.gfskBle.ModulationIndex = ((uint8_t)mi) + 1;
Wayne Roberts 0:9c052ff8dd6a 513 } else
Wayne Roberts 0:9c052ff8dd6a 514 mpBLE_GFSK.gfskBle.ModulationIndex = 0;
Wayne Roberts 0:9c052ff8dd6a 515
Wayne Roberts 0:9c052ff8dd6a 516 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpBLE_GFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 517 }
Wayne Roberts 0:9c052ff8dd6a 518
Wayne Roberts 0:9c052ff8dd6a 519 void Radio::GFSKPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn)
Wayne Roberts 0:9c052ff8dd6a 520 {
Wayne Roberts 0:9c052ff8dd6a 521 ppGFSK.gfskFLRC.PreambleLength = (preambleLen - 4) / 4;
Wayne Roberts 0:9c052ff8dd6a 522 ppGFSK.gfskFLRC.PreambleLength <<= 4;
Wayne Roberts 0:9c052ff8dd6a 523 ppGFSK.gfskFLRC.SyncWordLength = (3 - 1) << 1; // 3 byte 0xc194c1
Wayne Roberts 0:9c052ff8dd6a 524 ppGFSK.gfskFLRC.HeaderType = fixLen ? RADIO_PACKET_FIXED_LENGTH : RADIO_PACKET_VARIABLE_LENGTH;
Wayne Roberts 0:9c052ff8dd6a 525 ppGFSK.gfskFLRC.CRCLength = crcOn ? RADIO_CRC_2_BYTES : RADIO_CRC_OFF;
Wayne Roberts 0:9c052ff8dd6a 526
Wayne Roberts 0:9c052ff8dd6a 527 // TODO ppGFSK.gfskFLRC.PayloadLength = ;
Wayne Roberts 0:9c052ff8dd6a 528
Wayne Roberts 0:9c052ff8dd6a 529 radio.xfer(OPCODE_SET_PACKET_PARAMS, 7, 0, ppGFSK.buf);
Wayne Roberts 0:9c052ff8dd6a 530 }
Wayne Roberts 0:9c052ff8dd6a 531
Wayne Roberts 0:9c052ff8dd6a 532 void Radio::SetLoRaSymbolTimeout(uint8_t symbs)
Wayne Roberts 0:9c052ff8dd6a 533 {
Wayne Roberts 0:9c052ff8dd6a 534 //symbolTimeout = symbs;
Wayne Roberts 0:9c052ff8dd6a 535 }
Wayne Roberts 0:9c052ff8dd6a 536
Wayne Roberts 0:9c052ff8dd6a 537 void Radio::LoRaModemConfig(unsigned bwKHz, uint8_t sf, uint8_t cr)
Wayne Roberts 0:9c052ff8dd6a 538 {
Wayne Roberts 1:e79b0a55135f 539 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 540 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 541
Wayne Roberts 1:e79b0a55135f 542 if (bwKHz > 800) {
Wayne Roberts 0:9c052ff8dd6a 543 mpLORA.lora.bandwidth = LORA_BW_1600;
Wayne Roberts 1:e79b0a55135f 544 } if (bwKHz > 400) {
Wayne Roberts 0:9c052ff8dd6a 545 mpLORA.lora.bandwidth = LORA_BW_800;
Wayne Roberts 1:e79b0a55135f 546 } if (bwKHz > 200) {
Wayne Roberts 0:9c052ff8dd6a 547 mpLORA.lora.bandwidth = LORA_BW_400;
Wayne Roberts 1:e79b0a55135f 548 } else {
Wayne Roberts 0:9c052ff8dd6a 549 mpLORA.lora.bandwidth = LORA_BW_200;
Wayne Roberts 1:e79b0a55135f 550 }
Wayne Roberts 0:9c052ff8dd6a 551
Wayne Roberts 0:9c052ff8dd6a 552 mpLORA.lora.codingRate = cr;
Wayne Roberts 0:9c052ff8dd6a 553
Wayne Roberts 0:9c052ff8dd6a 554 mpLORA.lora.spreadingFactor = sf << 4;
Wayne Roberts 0:9c052ff8dd6a 555
Wayne Roberts 0:9c052ff8dd6a 556 radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpLORA.buf);
Wayne Roberts 0:9c052ff8dd6a 557 }
Wayne Roberts 0:9c052ff8dd6a 558
Wayne Roberts 0:9c052ff8dd6a 559 void Radio::LoRaPacketConfig(unsigned preambleLen, bool fixLen, bool crcOn, bool invIQ)
Wayne Roberts 0:9c052ff8dd6a 560 {
Wayne Roberts 1:e79b0a55135f 561 if (radio.getPacketType() != PACKET_TYPE_LORA)
Wayne Roberts 1:e79b0a55135f 562 radio.setPacketType(PACKET_TYPE_LORA);
Wayne Roberts 1:e79b0a55135f 563
Wayne Roberts 0:9c052ff8dd6a 564 ppLORA.lora.PreambleLength = preambleLen;
Wayne Roberts 0:9c052ff8dd6a 565 ppLORA.lora.HeaderType = fixLen ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 0:9c052ff8dd6a 566 ppLORA.lora.crc = crcOn ? LORA_CRC_ENABLE : LORA_CRC_DISABLE;
Wayne Roberts 0:9c052ff8dd6a 567 ppLORA.lora.InvertIQ = invIQ ? LORA_IQ_INVERTED : LORA_IQ_STD;
Wayne Roberts 0:9c052ff8dd6a 568
Wayne Roberts 0:9c052ff8dd6a 569 radio.xfer(OPCODE_SET_PACKET_PARAMS, 5, 0, ppLORA.buf);
Wayne Roberts 0:9c052ff8dd6a 570 }
Wayne Roberts 0:9c052ff8dd6a 571
Wayne Roberts 0:9c052ff8dd6a 572 void Radio::SetChannel(unsigned hz)
Wayne Roberts 0:9c052ff8dd6a 573 {
Wayne Roberts 0:9c052ff8dd6a 574 radio.setMHz(hz / 1000000.0);
Wayne Roberts 0:9c052ff8dd6a 575 }
Wayne Roberts 0:9c052ff8dd6a 576
Wayne Roberts 0:9c052ff8dd6a 577 uint32_t Radio::Random(void)
Wayne Roberts 0:9c052ff8dd6a 578 {
Wayne Roberts 0:9c052ff8dd6a 579 uint8_t buf[2];
Wayne Roberts 0:9c052ff8dd6a 580 uint32_t ret = 0;
Wayne Roberts 0:9c052ff8dd6a 581 unsigned n;
Wayne Roberts 0:9c052ff8dd6a 582
Wayne Roberts 0:9c052ff8dd6a 583 radio.start_rx(-1);
Wayne Roberts 0:9c052ff8dd6a 584
Wayne Roberts 0:9c052ff8dd6a 585 for (n = 0; n < 8; n++) {
Wayne Roberts 0:9c052ff8dd6a 586 uint32_t r, s;
Wayne Roberts 0:9c052ff8dd6a 587 wait_us(5000);
Wayne Roberts 0:9c052ff8dd6a 588 radio.xfer(OPCODE_GET_RSSIINST, 0, 2, buf);
Wayne Roberts 0:9c052ff8dd6a 589 r = buf[1];
Wayne Roberts 0:9c052ff8dd6a 590 s = n * 4;
Wayne Roberts 0:9c052ff8dd6a 591 r <<= s;
Wayne Roberts 0:9c052ff8dd6a 592 ret ^= r;
Wayne Roberts 0:9c052ff8dd6a 593 }
Wayne Roberts 0:9c052ff8dd6a 594
Wayne Roberts 0:9c052ff8dd6a 595 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 596
Wayne Roberts 0:9c052ff8dd6a 597 return ret;
Wayne Roberts 0:9c052ff8dd6a 598 }
Wayne Roberts 0:9c052ff8dd6a 599
Wayne Roberts 0:9c052ff8dd6a 600 void Radio::Rx(unsigned timeout)
Wayne Roberts 0:9c052ff8dd6a 601 {
Wayne Roberts 7:ba81f66e56d1 602 #ifdef RX_INDICATION
Wayne Roberts 7:ba81f66e56d1 603 RX_INDICATION = 1;
Wayne Roberts 7:ba81f66e56d1 604 #endif
Wayne Roberts 0:9c052ff8dd6a 605 radio.start_rx(timeout / 1000);
Wayne Roberts 0:9c052ff8dd6a 606 }
Wayne Roberts 0:9c052ff8dd6a 607
Wayne Roberts 0:9c052ff8dd6a 608 void Radio::Standby()
Wayne Roberts 0:9c052ff8dd6a 609 {
Wayne Roberts 0:9c052ff8dd6a 610 radio.setStandby(STDBY_RC);
Wayne Roberts 0:9c052ff8dd6a 611 }
Wayne Roberts 0:9c052ff8dd6a 612
Wayne Roberts 0:9c052ff8dd6a 613 void Radio::set_tx_dbm(int8_t dbm)
Wayne Roberts 0:9c052ff8dd6a 614 {
Wayne Roberts 5:ab124d3842a8 615 if (dbm == PA_OFF_DBM) {
Wayne Roberts 5:ab124d3842a8 616 /* TODO: shut off PA */
Wayne Roberts 5:ab124d3842a8 617 } else {
Wayne Roberts 5:ab124d3842a8 618 radio.set_tx_dbm(dbm);
Wayne Roberts 5:ab124d3842a8 619 }
Wayne Roberts 0:9c052ff8dd6a 620 }
Wayne Roberts 0:9c052ff8dd6a 621
Wayne Roberts 0:9c052ff8dd6a 622 void Radio::SetTxContinuousWave(unsigned hz, int8_t dbm, unsigned timeout_us)
Wayne Roberts 0:9c052ff8dd6a 623 {
Wayne Roberts 0:9c052ff8dd6a 624 SetChannel(hz);
Wayne Roberts 0:9c052ff8dd6a 625 radio.set_tx_dbm(dbm);
Wayne Roberts 0:9c052ff8dd6a 626 radio.xfer(OPCODE_SET_TX_CARRIER, 0, 0, NULL);
Wayne Roberts 0:9c052ff8dd6a 627 }
Wayne Roberts 0:9c052ff8dd6a 628
Wayne Roberts 1:e79b0a55135f 629 void Radio::SetRxMaxPayloadLength(uint8_t max)
Wayne Roberts 0:9c052ff8dd6a 630 {
Wayne Roberts 1:e79b0a55135f 631 uint8_t pktType = radio.getPacketType();
Wayne Roberts 1:e79b0a55135f 632
Wayne Roberts 1:e79b0a55135f 633 if (pktType == PACKET_TYPE_GFSK)
Wayne Roberts 0:9c052ff8dd6a 634 ppGFSK.gfskFLRC.PayloadLength = max;
Wayne Roberts 1:e79b0a55135f 635 else if (pktType == PACKET_TYPE_LORA)
Wayne Roberts 0:9c052ff8dd6a 636 ppLORA.lora.PayloadLength = max;
Wayne Roberts 0:9c052ff8dd6a 637 }
Wayne Roberts 0:9c052ff8dd6a 638
Wayne Roberts 0:9c052ff8dd6a 639 #endif /* ..SX126x_H */