wayne roberts / Mbed OS lora-file-transfer-example

transfer files from mbed-os block device (i.e. SD card) over LoRa radio.

Dependencies:   sx12xx_hal

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 NAmote72 or Murata discovery, then you must import only sx127x driver.

This program uses mbed serial terminal at 115200 8N1.
Files (on SD Card) are transferred between two LoRa devices.
Use ? question mark to see available commands on serial terminal.
Send file to other side using send /fs/somefile, then use cmp /fs/somefile to compare the file on the other side of radio link with local file with same name.
Use cmp to test radio link.

rm command to delete files must not include /fs/ directory prefix, filename only.
send and cmp require /fs/ directory.

sx1280 thruput

bytes/secsf12sf11sf10sf9sf8sf7sf6sf5
1600KHz2764821081188732775365640012000
800KHz5299701720280047666500
400KHz146522654033

sx126x thruput

bytes/secsf12sf11sf10sf9sf8sf7sf6sf5
500KHz2073817061257215435705608
250KHz103193344641111418873064
125KHz971733245479721607

sx127x thruput

sx126x recommended at 500KHz bandwidth.

bytes/secsf12sf11sf10sf9sf8sf7
500KHz11120738569712202050
250KHz48.71031923456321115
125KHz24.24497151313552
62.5KHz12.222.139.486157276

SD Card

SD card driver must be enabled in mbed_app.json with the line "target.components_add": ["SD"]
Pins for SD card connection can be overridden as shown in mbed_app.json.
The default pin configuration for SD card is found in mbed_lib.json in mbed-os/components/storage/blockdevice/COMPONENT_SD/.
If no pin configuration exists in this mbed_lib.json, or needs to be changed, the included mbed_app.json is example pin declaration for SD card.

FAT filesystem is only used in this project for demonstration purpose; for easily copying files to SD card.
However, for production projects, LittleFileSystem needs to be used instead for reliability and wear leveling.

Platforms such as K64F have SD card slot already.
See all boards with arduino shield connector and SD card here. (arduino connector needed for LoRa radio board)
...but if you want to use nucleo board: /media/uploads/dudmuck/nucleo_sdcardqtr.png

lorachip_sx128x.cpp@1:319ef808aaa4, 2019-06-05 (annotated)

Committer:
Wayne Roberts
Date:
Wed Jun 05 09:52:27 2019 -0700
Revision:
1:319ef808aaa4
Parent:
0:c3ecf7b252a3 
mbed crashes closing -1 file descriptor

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wayne Roberts 0:c3ecf7b252a3 1 #include "lorachip.h"
Wayne Roberts 0:c3ecf7b252a3 2 #ifdef SX128x_H
Wayne Roberts 0:c3ecf7b252a3 3
Wayne Roberts 0:c3ecf7b252a3 4 #define TX_PWR_OFFSET 18
Wayne Roberts 0:c3ecf7b252a3 5
Wayne Roberts 0:c3ecf7b252a3 6 static uint8_t tx_param_buf[2];
Wayne Roberts 0:c3ecf7b252a3 7 static ModulationParams_t mpLORA;
Wayne Roberts 0:c3ecf7b252a3 8 static PacketParams_t ppLORA;
Wayne Roberts 0:c3ecf7b252a3 9 static LoRaPktPar0_t LoRaPktPar0;
Wayne Roberts 0:c3ecf7b252a3 10
Wayne Roberts 0:c3ecf7b252a3 11 void tx_dbm_print()
Wayne Roberts 0:c3ecf7b252a3 12 {
Wayne Roberts 0:c3ecf7b252a3 13 PaPwrCtrl_t PaPwrCtrl;
Wayne Roberts 0:c3ecf7b252a3 14
Wayne Roberts 0:c3ecf7b252a3 15 PaPwrCtrl.octet = Radio::radio.readReg(REG_ADDR_PA_PWR_CTRL, 1);
Wayne Roberts 0:c3ecf7b252a3 16 pc.printf("%ddBm ", PaPwrCtrl.bits.tx_pwr - TX_PWR_OFFSET);
Wayne Roberts 0:c3ecf7b252a3 17
Wayne Roberts 0:c3ecf7b252a3 18 tx_param_buf[0] = PaPwrCtrl.bits.tx_pwr;
Wayne Roberts 0:c3ecf7b252a3 19 }
Wayne Roberts 0:c3ecf7b252a3 20
Wayne Roberts 0:c3ecf7b252a3 21 static const unsigned lora_bws[] = {
Wayne Roberts 0:c3ecf7b252a3 22 50, // 0
Wayne Roberts 0:c3ecf7b252a3 23 100, // 1
Wayne Roberts 0:c3ecf7b252a3 24 200, // 2
Wayne Roberts 0:c3ecf7b252a3 25 400, // 3
Wayne Roberts 0:c3ecf7b252a3 26 800, // 4
Wayne Roberts 0:c3ecf7b252a3 27 1600 // 5
Wayne Roberts 0:c3ecf7b252a3 28 };
Wayne Roberts 0:c3ecf7b252a3 29
Wayne Roberts 0:c3ecf7b252a3 30 static const unsigned loraBWs[] = {
Wayne Roberts 0:c3ecf7b252a3 31 LORA_BW_50, // 0 50
Wayne Roberts 0:c3ecf7b252a3 32 LORA_BW_100, // 1 100
Wayne Roberts 0:c3ecf7b252a3 33 LORA_BW_200, // 2 200
Wayne Roberts 0:c3ecf7b252a3 34 LORA_BW_400, // 3 400
Wayne Roberts 0:c3ecf7b252a3 35 LORA_BW_800, // 4 800
Wayne Roberts 0:c3ecf7b252a3 36 LORA_BW_1600 // 5 1600
Wayne Roberts 0:c3ecf7b252a3 37 };
Wayne Roberts 0:c3ecf7b252a3 38
Wayne Roberts 0:c3ecf7b252a3 39 void print_lora_status()
Wayne Roberts 0:c3ecf7b252a3 40 {
Wayne Roberts 0:c3ecf7b252a3 41 float MHz;
Wayne Roberts 0:c3ecf7b252a3 42 status_t status;
Wayne Roberts 0:c3ecf7b252a3 43
Wayne Roberts 0:c3ecf7b252a3 44 tx_dbm_print();
Wayne Roberts 0:c3ecf7b252a3 45
Wayne Roberts 0:c3ecf7b252a3 46 status.octet = Radio::radio.xfer(OPCODE_GET_STATUS, 0, 0, NULL);
Wayne Roberts 0:c3ecf7b252a3 47 switch (status.bits.chipMode) {
Wayne Roberts 0:c3ecf7b252a3 48 case 2: pc.printf("STDBY_RC"); break; // STDBY_RC
Wayne Roberts 0:c3ecf7b252a3 49 case 3: pc.printf("STDBY_XOSC"); break; //STDBY_XOSC
Wayne Roberts 0:c3ecf7b252a3 50 case 4: pc.printf("FS"); break; //FS
Wayne Roberts 0:c3ecf7b252a3 51 case 5: pc.printf("RX"); break; // RX
Wayne Roberts 0:c3ecf7b252a3 52 case 6: pc.printf("TX"); break; // TX
Wayne Roberts 0:c3ecf7b252a3 53 default: pc.printf("<%u>", status.bits.chipMode); break;
Wayne Roberts 0:c3ecf7b252a3 54 }
Wayne Roberts 0:c3ecf7b252a3 55 pc.printf("\t");
Wayne Roberts 0:c3ecf7b252a3 56
Wayne Roberts 0:c3ecf7b252a3 57 {
Wayne Roberts 0:c3ecf7b252a3 58 IrqFlags_t irqFlags;
Wayne Roberts 0:c3ecf7b252a3 59 uint8_t buf[6];
Wayne Roberts 0:c3ecf7b252a3 60 Radio::radio.xfer(OPCODE_GET_IRQ_STATUS, 0, 3, buf);
Wayne Roberts 0:c3ecf7b252a3 61 status.octet = buf[0];
Wayne Roberts 0:c3ecf7b252a3 62 irqFlags.word = buf[1] << 8;
Wayne Roberts 0:c3ecf7b252a3 63 irqFlags.word |= buf[2];
Wayne Roberts 0:c3ecf7b252a3 64 pc.printf(" irq:%04x ", irqFlags.word);
Wayne Roberts 0:c3ecf7b252a3 65 }
Wayne Roberts 0:c3ecf7b252a3 66
Wayne Roberts 0:c3ecf7b252a3 67 LoRaPktPar0.octet = Radio::radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:c3ecf7b252a3 68
Wayne Roberts 0:c3ecf7b252a3 69 pc.printf("%uKHz ", lora_bws[LoRaPktPar0.bits.modem_bw]);
Wayne Roberts 0:c3ecf7b252a3 70 pc.printf("sf%u", LoRaPktPar0.bits.modem_sf);
Wayne Roberts 0:c3ecf7b252a3 71
Wayne Roberts 0:c3ecf7b252a3 72 MHz = Radio::radio.getMHz();
Wayne Roberts 0:c3ecf7b252a3 73 pc.printf(" %.3fMHz\r\n", MHz);
Wayne Roberts 0:c3ecf7b252a3 74 }
Wayne Roberts 0:c3ecf7b252a3 75
Wayne Roberts 0:c3ecf7b252a3 76 void cmd_sf(uint8_t argsAt)
Wayne Roberts 0:c3ecf7b252a3 77 {
Wayne Roberts 0:c3ecf7b252a3 78 unsigned sf;
Wayne Roberts 0:c3ecf7b252a3 79 if (sscanf(pcbuf + argsAt, "%u", &sf) == 1) {
Wayne Roberts 0:c3ecf7b252a3 80 mpLORA.lora.spreadingFactor = sf << 4;
Wayne Roberts 0:c3ecf7b252a3 81 Radio::radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpLORA.buf);
Wayne Roberts 0:c3ecf7b252a3 82 set_symb_timeout();
Wayne Roberts 0:c3ecf7b252a3 83 }
Wayne Roberts 0:c3ecf7b252a3 84
Wayne Roberts 0:c3ecf7b252a3 85 LoRaPktPar0.octet = Radio::radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:c3ecf7b252a3 86 pc.printf("sf%u\r\n", LoRaPktPar0.bits.modem_sf);
Wayne Roberts 0:c3ecf7b252a3 87 }
Wayne Roberts 0:c3ecf7b252a3 88
Wayne Roberts 0:c3ecf7b252a3 89 void cmd_frf(uint8_t argsAt)
Wayne Roberts 0:c3ecf7b252a3 90 {
Wayne Roberts 0:c3ecf7b252a3 91 float MHz;
Wayne Roberts 0:c3ecf7b252a3 92
Wayne Roberts 0:c3ecf7b252a3 93 if (sscanf(pcbuf + argsAt, "%f", &MHz) == 1) {
Wayne Roberts 0:c3ecf7b252a3 94 Radio::radio.setMHz(MHz);
Wayne Roberts 0:c3ecf7b252a3 95 }
Wayne Roberts 0:c3ecf7b252a3 96 MHz = Radio::radio.getMHz();
Wayne Roberts 0:c3ecf7b252a3 97 pc.printf("%.3fMHz\r\n", MHz);
Wayne Roberts 0:c3ecf7b252a3 98 }
Wayne Roberts 0:c3ecf7b252a3 99
Wayne Roberts 0:c3ecf7b252a3 100 void cmd_bw(uint8_t argsAt)
Wayne Roberts 0:c3ecf7b252a3 101 {
Wayne Roberts 0:c3ecf7b252a3 102 unsigned n;
Wayne Roberts 0:c3ecf7b252a3 103 float khz;
Wayne Roberts 0:c3ecf7b252a3 104
Wayne Roberts 0:c3ecf7b252a3 105 if (sscanf(pcbuf + argsAt, "%f", &khz) == 1) {
Wayne Roberts 0:c3ecf7b252a3 106 int sidx = -1;
Wayne Roberts 0:c3ecf7b252a3 107 float min_diff = 9999;
Wayne Roberts 0:c3ecf7b252a3 108 Radio::Standby();
Wayne Roberts 0:c3ecf7b252a3 109 wait(0.02);
Wayne Roberts 0:c3ecf7b252a3 110
Wayne Roberts 0:c3ecf7b252a3 111 for (n = 0; lora_bws[n] > 0; n++) {
Wayne Roberts 0:c3ecf7b252a3 112 float diff = fabs(lora_bws[n] - khz);
Wayne Roberts 0:c3ecf7b252a3 113 if (diff < min_diff) {
Wayne Roberts 0:c3ecf7b252a3 114 sidx = n;
Wayne Roberts 0:c3ecf7b252a3 115 min_diff = diff;
Wayne Roberts 0:c3ecf7b252a3 116 }
Wayne Roberts 0:c3ecf7b252a3 117 }
Wayne Roberts 0:c3ecf7b252a3 118 if (sidx == -1) {
Wayne Roberts 0:c3ecf7b252a3 119 pc.printf("bw not found\r\n");
Wayne Roberts 0:c3ecf7b252a3 120 return;
Wayne Roberts 0:c3ecf7b252a3 121 }
Wayne Roberts 0:c3ecf7b252a3 122
Wayne Roberts 0:c3ecf7b252a3 123 mpLORA.lora.bandwidth = loraBWs[sidx];
Wayne Roberts 0:c3ecf7b252a3 124 Radio::radio.xfer(OPCODE_SET_MODULATION_PARAMS, 3, 0, mpLORA.buf);
Wayne Roberts 0:c3ecf7b252a3 125
Wayne Roberts 0:c3ecf7b252a3 126 wait(0.02);
Wayne Roberts 0:c3ecf7b252a3 127 set_symb_timeout();
Wayne Roberts 0:c3ecf7b252a3 128 Radio::Rx(0);
Wayne Roberts 0:c3ecf7b252a3 129
Wayne Roberts 0:c3ecf7b252a3 130 current.bwKHz = khz;
Wayne Roberts 0:c3ecf7b252a3 131 }
Wayne Roberts 0:c3ecf7b252a3 132
Wayne Roberts 0:c3ecf7b252a3 133 LoRaPktPar0.octet = Radio::radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:c3ecf7b252a3 134 pc.printf("%uKHz\r\n", lora_bws[LoRaPktPar0.bits.modem_bw]);
Wayne Roberts 0:c3ecf7b252a3 135 }
Wayne Roberts 0:c3ecf7b252a3 136
Wayne Roberts 0:c3ecf7b252a3 137 void radio_readChip()
Wayne Roberts 0:c3ecf7b252a3 138 {
Wayne Roberts 0:c3ecf7b252a3 139 //uint8_t reg8;
Wayne Roberts 0:c3ecf7b252a3 140
Wayne Roberts 0:c3ecf7b252a3 141 #if 0
Wayne Roberts 0:c3ecf7b252a3 142 reg8 = Radio::radio.readReg(REG_ADDR_PKTCTRL0, 1);
Wayne Roberts 0:c3ecf7b252a3 143 ppGFSK.gfskFLRC.HeaderType = reg8 & 0x20;
Wayne Roberts 0:c3ecf7b252a3 144 ppFLRC.gfskFLRC.HeaderType = reg8 & 0x20;
Wayne Roberts 0:c3ecf7b252a3 145
Wayne Roberts 0:c3ecf7b252a3 146 reg8 = Radio::radio.readReg(REG_ADDR_PKTCTRL1, 1);
Wayne Roberts 0:c3ecf7b252a3 147 ppGFSK.gfskFLRC.PreambleLength = reg8 & 0x70;
Wayne Roberts 0:c3ecf7b252a3 148 ppFLRC.gfskFLRC.PreambleLength = reg8 & 0x70;
Wayne Roberts 0:c3ecf7b252a3 149 ppGFSK.gfskFLRC.SyncWordLength = reg8 & 0x0e;
Wayne Roberts 0:c3ecf7b252a3 150 ppFLRC.gfskFLRC.SyncWordLength = reg8 & 0x06;
Wayne Roberts 0:c3ecf7b252a3 151 if (ppFLRC.gfskFLRC.SyncWordLength == 0x06)
Wayne Roberts 0:c3ecf7b252a3 152 ppFLRC.gfskFLRC.SyncWordLength = FLRC_SYNC_WORD_LEN_P32S;
Wayne Roberts 0:c3ecf7b252a3 153
Wayne Roberts 0:c3ecf7b252a3 154 reg8 = Radio::radio.readReg(REG_ADDR_PKT_SYNC_ADRS_CTRL, 1);
Wayne Roberts 0:c3ecf7b252a3 155 ppGFSK.gfskFLRC.SyncWordMatch = reg8 & 0x70;
Wayne Roberts 0:c3ecf7b252a3 156 ppFLRC.gfskFLRC.SyncWordMatch = reg8 & 0x70;
Wayne Roberts 0:c3ecf7b252a3 157
Wayne Roberts 0:c3ecf7b252a3 158 reg8 = Radio::radio.readReg(REG_ADDR_PAYLOAD_LEN, 1);
Wayne Roberts 0:c3ecf7b252a3 159 ppGFSK.gfskFLRC.PayloadLength = reg8;
Wayne Roberts 0:c3ecf7b252a3 160 ppFLRC.gfskFLRC.PayloadLength = reg8;
Wayne Roberts 0:c3ecf7b252a3 161
Wayne Roberts 0:c3ecf7b252a3 162 reg8 = Radio::radio.readReg(REG_ADDR_PKT_TX_HEADER, 1); // TODO hi bit of payload length
Wayne Roberts 0:c3ecf7b252a3 163 ppBLE.ble.ConnectionState = reg8 & 0xe0;
Wayne Roberts 0:c3ecf7b252a3 164 ppBLE.ble.BleTestPayload = reg8 & 0x1c;
Wayne Roberts 0:c3ecf7b252a3 165
Wayne Roberts 0:c3ecf7b252a3 166 reg8 = Radio::radio.readReg(REG_ADDR_PKT_BITSTREAM_CTRL, 1);
Wayne Roberts 0:c3ecf7b252a3 167 ppBLE.ble.CrcLength = reg8 & 0x30;
Wayne Roberts 0:c3ecf7b252a3 168 ppBLE.ble.Whitening = reg8 & 0x08;
Wayne Roberts 0:c3ecf7b252a3 169 ppGFSK.gfskFLRC.CRCLength = reg8 & 0x30;
Wayne Roberts 0:c3ecf7b252a3 170 ppFLRC.gfskFLRC.CRCLength = reg8 & 0x30;
Wayne Roberts 0:c3ecf7b252a3 171 ppGFSK.gfskFLRC.Whitening = reg8 & 0x08;
Wayne Roberts 0:c3ecf7b252a3 172 ppFLRC.gfskFLRC.Whitening = reg8 & 0x08;
Wayne Roberts 0:c3ecf7b252a3 173 #endif /* if 0 */
Wayne Roberts 0:c3ecf7b252a3 174
Wayne Roberts 0:c3ecf7b252a3 175 LoRaPktPar0.octet = Radio::radio.readReg(REG_ADDR_LORA_PKTPAR0, 1);
Wayne Roberts 0:c3ecf7b252a3 176 switch (LoRaPktPar0.bits.modem_bw) {
Wayne Roberts 0:c3ecf7b252a3 177 case 2: mpLORA.lora.bandwidth = LORA_BW_200; break;
Wayne Roberts 0:c3ecf7b252a3 178 case 3: mpLORA.lora.bandwidth = LORA_BW_400; break;
Wayne Roberts 0:c3ecf7b252a3 179 case 4: mpLORA.lora.bandwidth = LORA_BW_800; break;
Wayne Roberts 0:c3ecf7b252a3 180 case 5: mpLORA.lora.bandwidth = LORA_BW_1600; break;
Wayne Roberts 0:c3ecf7b252a3 181 }
Wayne Roberts 0:c3ecf7b252a3 182 mpLORA.lora.spreadingFactor = LoRaPktPar0.bits.modem_sf << 4;
Wayne Roberts 0:c3ecf7b252a3 183
Wayne Roberts 0:c3ecf7b252a3 184 {
Wayne Roberts 0:c3ecf7b252a3 185 LoRaPktPar1_t LoRaPktPar1;
Wayne Roberts 0:c3ecf7b252a3 186 LoRaPktPar1.octet = Radio::radio.readReg(REG_ADDR_LORA_PKTPAR1, 1);
Wayne Roberts 0:c3ecf7b252a3 187 mpLORA.lora.codingRate = LoRaPktPar1.bits.coding_rate;
Wayne Roberts 0:c3ecf7b252a3 188 ppLORA.lora.InvertIQ = LoRaPktPar1.bits.rxinvert_iq ? LORA_IQ_INVERTED : LORA_IQ_STD;
Wayne Roberts 0:c3ecf7b252a3 189 ppLORA.lora.HeaderType = LoRaPktPar1.bits.implicit_header ? IMPLICIT_HEADER : EXPLICIT_HEADER;
Wayne Roberts 0:c3ecf7b252a3 190 // LoRaPktPar1.bits.ppm_offset
Wayne Roberts 0:c3ecf7b252a3 191 }
Wayne Roberts 0:c3ecf7b252a3 192
Wayne Roberts 0:c3ecf7b252a3 193 {
Wayne Roberts 0:c3ecf7b252a3 194 LoRaPreambleReg_t LoRaPreambleReg;
Wayne Roberts 0:c3ecf7b252a3 195 LoRaPreambleReg.octet = Radio::radio.readReg(REG_ADDR_LORA_PREAMBLE, 1);
Wayne Roberts 0:c3ecf7b252a3 196 ppLORA.lora.PreambleLength = LoRaPreambleReg.bits.preamble_symb1_nb * (1 << LoRaPreambleReg.bits.preamble_symb_nb_exp);
Wayne Roberts 0:c3ecf7b252a3 197 }
Wayne Roberts 0:c3ecf7b252a3 198 ppLORA.lora.PayloadLength = Radio::radio.readReg(REG_ADDR_LORA_TX_PAYLOAD_LENGTH, 1);
Wayne Roberts 0:c3ecf7b252a3 199
Wayne Roberts 0:c3ecf7b252a3 200 {
Wayne Roberts 0:c3ecf7b252a3 201 LoRaLrCtl_t LoRaLrCtl;
Wayne Roberts 0:c3ecf7b252a3 202 LoRaLrCtl.octet = Radio::radio.readReg(REG_ADDR_LORA_LRCTL, 1);
Wayne Roberts 0:c3ecf7b252a3 203 ppLORA.lora.crc = LoRaLrCtl.octet & 0x20; // LoRaLrCtl.bits.crc_en
Wayne Roberts 0:c3ecf7b252a3 204 }
Wayne Roberts 0:c3ecf7b252a3 205
Wayne Roberts 0:c3ecf7b252a3 206 #if 0
Wayne Roberts 0:c3ecf7b252a3 207 {
Wayne Roberts 0:c3ecf7b252a3 208 RegRxBw_t RegRxBw;
Wayne Roberts 0:c3ecf7b252a3 209 unsigned bps;
Wayne Roberts 0:c3ecf7b252a3 210 FloraPreambleHi_t FloraPreambleHi;
Wayne Roberts 0:c3ecf7b252a3 211 float mi, fdev_hz;
Wayne Roberts 0:c3ecf7b252a3 212 unsigned freqDev;
Wayne Roberts 0:c3ecf7b252a3 213 FskModDfH_t FskModDfH;
Wayne Roberts 0:c3ecf7b252a3 214 FskModDfH.octet = radio.readReg(REG_ADDR_FSK_MODDFH, 1);
Wayne Roberts 0:c3ecf7b252a3 215 freqDev = FskModDfH.bits.freqDev;
Wayne Roberts 0:c3ecf7b252a3 216 freqDev <<= 8;
Wayne Roberts 0:c3ecf7b252a3 217 freqDev |= radio.readReg(REG_ADDR_FSK_MODDFL, 1);
Wayne Roberts 0:c3ecf7b252a3 218 //pc.printf("freqDev %x, %x\r\n", freqDev, freqDev);
Wayne Roberts 0:c3ecf7b252a3 219 fdev_hz = freqDev * PLL_STEP_HZ;
Wayne Roberts 0:c3ecf7b252a3 220 //pc.printf("fdev hz:%f\r\n", fdev_hz);
Wayne Roberts 0:c3ecf7b252a3 221
Wayne Roberts 0:c3ecf7b252a3 222 FloraPreambleHi.octet = radio.readReg(REG_ADDR_FLORA_PREAMBLE_HI, 1);
Wayne Roberts 0:c3ecf7b252a3 223 switch (FloraPreambleHi.bits.data_rate) {
Wayne Roberts 0:c3ecf7b252a3 224 case 0:
Wayne Roberts 0:c3ecf7b252a3 225 bps = 2.0e6;
Wayne Roberts 0:c3ecf7b252a3 226 //mpFLRC.flrc.bitrateBandwidth = ??; // 2.6
Wayne Roberts 0:c3ecf7b252a3 227 break;
Wayne Roberts 0:c3ecf7b252a3 228 case 1:
Wayne Roberts 0:c3ecf7b252a3 229 bps = 1.6e6;
Wayne Roberts 0:c3ecf7b252a3 230 //mpFLRC.flrc.bitrateBandwidth = ??; // 2.08
Wayne Roberts 0:c3ecf7b252a3 231 break;
Wayne Roberts 0:c3ecf7b252a3 232 case 2:
Wayne Roberts 0:c3ecf7b252a3 233 bps = 1.0e6;
Wayne Roberts 0:c3ecf7b252a3 234 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_1_300_BW_1_2; // 1.3
Wayne Roberts 0:c3ecf7b252a3 235 break;
Wayne Roberts 0:c3ecf7b252a3 236 case 3:
Wayne Roberts 0:c3ecf7b252a3 237 bps = 0.8e6;
Wayne Roberts 0:c3ecf7b252a3 238 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_1_000_BW_1_2; // 1.04
Wayne Roberts 0:c3ecf7b252a3 239 break;
Wayne Roberts 0:c3ecf7b252a3 240 case 4:
Wayne Roberts 0:c3ecf7b252a3 241 bps = 0.5e6;
Wayne Roberts 0:c3ecf7b252a3 242 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_650_BW_0_6; // 0.65
Wayne Roberts 0:c3ecf7b252a3 243 break;
Wayne Roberts 0:c3ecf7b252a3 244 case 5:
Wayne Roberts 0:c3ecf7b252a3 245 bps = 0.4e6;
Wayne Roberts 0:c3ecf7b252a3 246 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_520_BW_0_6; // 0.52
Wayne Roberts 0:c3ecf7b252a3 247 break;
Wayne Roberts 0:c3ecf7b252a3 248 case 6:
Wayne Roberts 0:c3ecf7b252a3 249 bps = 0.25e6;
Wayne Roberts 0:c3ecf7b252a3 250 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_325_BW_0_3; // 0.325
Wayne Roberts 0:c3ecf7b252a3 251 break;
Wayne Roberts 0:c3ecf7b252a3 252 case 7:
Wayne Roberts 0:c3ecf7b252a3 253 bps = 0.125e6;
Wayne Roberts 0:c3ecf7b252a3 254 mpFLRC.flrc.bitrateBandwidth = FLRC_BR_0_260_BW_0_3; // 0.26
Wayne Roberts 0:c3ecf7b252a3 255 break;
Wayne Roberts 0:c3ecf7b252a3 256 }
Wayne Roberts 0:c3ecf7b252a3 257
Wayne Roberts 0:c3ecf7b252a3 258 mi = (fdev_hz * 2.0) / bps;
Wayne Roberts 0:c3ecf7b252a3 259 if (mi > 0.35) {
Wayne Roberts 0:c3ecf7b252a3 260 mi -= 0.5;
Wayne Roberts 0:c3ecf7b252a3 261 mi /= 0.25;
Wayne Roberts 0:c3ecf7b252a3 262 mpBLE_GFSK.gfskBle.ModulationIndex = ((uint8_t)mi) + 1;
Wayne Roberts 0:c3ecf7b252a3 263 } else
Wayne Roberts 0:c3ecf7b252a3 264 mpBLE_GFSK.gfskBle.ModulationIndex = 0;
Wayne Roberts 0:c3ecf7b252a3 265
Wayne Roberts 0:c3ecf7b252a3 266 RegRxBw.octet = radio.readReg(REG_ADDR_RXBW, 1);
Wayne Roberts 0:c3ecf7b252a3 267
Wayne Roberts 0:c3ecf7b252a3 268 //pc.printf("rx ");
Wayne Roberts 0:c3ecf7b252a3 269 switch (RegRxBw.bits.bw) {
Wayne Roberts 0:c3ecf7b252a3 270 case 0:
Wayne Roberts 0:c3ecf7b252a3 271 //pc.printf("2.4");
Wayne Roberts 0:c3ecf7b252a3 272 if (FloraPreambleHi.bits.data_rate == 0)
Wayne Roberts 0:c3ecf7b252a3 273 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_2_000_BW_2_4;
Wayne Roberts 0:c3ecf7b252a3 274 if (FloraPreambleHi.bits.data_rate == 1)
Wayne Roberts 0:c3ecf7b252a3 275 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_600_BW_2_4;
Wayne Roberts 0:c3ecf7b252a3 276 if (FloraPreambleHi.bits.data_rate == 2)
Wayne Roberts 0:c3ecf7b252a3 277 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_000_BW_2_4;
Wayne Roberts 0:c3ecf7b252a3 278 if (FloraPreambleHi.bits.data_rate == 3)
Wayne Roberts 0:c3ecf7b252a3 279 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_800_BW_2_4;
Wayne Roberts 0:c3ecf7b252a3 280 break;
Wayne Roberts 0:c3ecf7b252a3 281 case 1:
Wayne Roberts 0:c3ecf7b252a3 282 //pc.printf("1.2");
Wayne Roberts 0:c3ecf7b252a3 283 if (FloraPreambleHi.bits.data_rate == 2)
Wayne Roberts 0:c3ecf7b252a3 284 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_1_000_BW_1_2;
Wayne Roberts 0:c3ecf7b252a3 285 if (FloraPreambleHi.bits.data_rate == 3)
Wayne Roberts 0:c3ecf7b252a3 286 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_800_BW_1_2;
Wayne Roberts 0:c3ecf7b252a3 287 if (FloraPreambleHi.bits.data_rate == 4)
Wayne Roberts 0:c3ecf7b252a3 288 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_500_BW_1_2;
Wayne Roberts 0:c3ecf7b252a3 289 if (FloraPreambleHi.bits.data_rate == 5)
Wayne Roberts 0:c3ecf7b252a3 290 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_400_BW_1_2;
Wayne Roberts 0:c3ecf7b252a3 291 break;
Wayne Roberts 0:c3ecf7b252a3 292 case 2:
Wayne Roberts 0:c3ecf7b252a3 293 //pc.printf("0.6");
Wayne Roberts 0:c3ecf7b252a3 294 if (FloraPreambleHi.bits.data_rate == 4)
Wayne Roberts 0:c3ecf7b252a3 295 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_500_BW_0_6;
Wayne Roberts 0:c3ecf7b252a3 296 if (FloraPreambleHi.bits.data_rate == 5)
Wayne Roberts 0:c3ecf7b252a3 297 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_400_BW_0_6;
Wayne Roberts 0:c3ecf7b252a3 298 if (FloraPreambleHi.bits.data_rate == 6)
Wayne Roberts 0:c3ecf7b252a3 299 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_250_BW_0_6;
Wayne Roberts 0:c3ecf7b252a3 300 break;
Wayne Roberts 0:c3ecf7b252a3 301 case 3:
Wayne Roberts 0:c3ecf7b252a3 302 //pc.printf("0.3");
Wayne Roberts 0:c3ecf7b252a3 303 if (FloraPreambleHi.bits.data_rate == 6)
Wayne Roberts 0:c3ecf7b252a3 304 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_250_BW_0_3;
Wayne Roberts 0:c3ecf7b252a3 305 if (FloraPreambleHi.bits.data_rate == 7)
Wayne Roberts 0:c3ecf7b252a3 306 mpBLE_GFSK.gfskBle.bitrateBandwidth = GFSK_BLE_BR_0_125_BW_0_3;
Wayne Roberts 0:c3ecf7b252a3 307 break;
Wayne Roberts 0:c3ecf7b252a3 308 }
Wayne Roberts 0:c3ecf7b252a3 309 //pc.printf("MHz bw:%u\r\n", RegRxBw.bits.bw);
Wayne Roberts 0:c3ecf7b252a3 310 mpBLE_GFSK.gfskBle.bitrateBandwidth = reg8;
Wayne Roberts 0:c3ecf7b252a3 311 }
Wayne Roberts 0:c3ecf7b252a3 312
Wayne Roberts 0:c3ecf7b252a3 313 {
Wayne Roberts 0:c3ecf7b252a3 314 FskCfg_t FskCfg;
Wayne Roberts 0:c3ecf7b252a3 315 FskCfg.octet = radio.readReg(REG_ADDR_FSK_CFG, 1);
Wayne Roberts 0:c3ecf7b252a3 316 //pc.printf("gf_bt:%u\r\n", FskCfg.bits.gf_bt);
Wayne Roberts 0:c3ecf7b252a3 317 mpBLE_GFSK.gfskBle.ModulationShaping = FskCfg.bits.gf_bt << 4;
Wayne Roberts 0:c3ecf7b252a3 318 mpFLRC.flrc.ModulationShaping = mpBLE_GFSK.gfskBle.ModulationShaping;
Wayne Roberts 0:c3ecf7b252a3 319 }
Wayne Roberts 0:c3ecf7b252a3 320
Wayne Roberts 0:c3ecf7b252a3 321 {
Wayne Roberts 0:c3ecf7b252a3 322 PktBitStreamCtrl_t PktBitStreamCtrl;
Wayne Roberts 0:c3ecf7b252a3 323 PktBitStreamCtrl.octet = radio.readReg(REG_ADDR_PKT_BITSTREAM_CTRL, 1);
Wayne Roberts 0:c3ecf7b252a3 324 mpFLRC.flrc.CodingRate = PktBitStreamCtrl.octet & 0x06; // PktBitStreamCtrl.bits.flora_coding_rate
Wayne Roberts 0:c3ecf7b252a3 325 }
Wayne Roberts 0:c3ecf7b252a3 326 #endif /* if 0 */
Wayne Roberts 0:c3ecf7b252a3 327
Wayne Roberts 0:c3ecf7b252a3 328 }
Wayne Roberts 0:c3ecf7b252a3 329
Wayne Roberts 0:c3ecf7b252a3 330 #endif /* SX128x_H */