Basic LoRa receiver example
radio chip selection
Radio chip driver is not included, allowing choice of radio device.
If you're using SX1272 or SX1276, then import sx127x driver into your program.
if you're using SX1261 or SX1262, then import sx126x driver into your program.
if you're using SX1280, then import sx1280 driver into your program.
if you're using LR1110, then import LR1110 driver into your program.
If you're using NAmote72 or Murata discovery, then you must import only sx127x driver.
If you're using Type1SJ select target DISCO_L072CZ_LRWAN1
and import sx126x driver into your program.
On default serial port, this project will print out (at 9600bps) reset-rx
once at startup.
Use project simple_tx on transmtting end.
main.cpp@0:7c7b86c38e6f, 2018-07-17 (annotated)
- Committer:
- Wayne Roberts
- Date:
- Tue Jul 17 16:20:11 2018 -0700
- Revision:
- 0:7c7b86c38e6f
- Child:
- 2:5e56875de51b
initial commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Wayne Roberts |
0:7c7b86c38e6f | 1 | #include "radio.h" |
Wayne Roberts |
0:7c7b86c38e6f | 2 | |
Wayne Roberts |
0:7c7b86c38e6f | 3 | #if defined(SX127x_H) |
Wayne Roberts |
0:7c7b86c38e6f | 4 | #define BW_KHZ 125 |
Wayne Roberts |
0:7c7b86c38e6f | 5 | #define SPREADING_FACTOR 7 |
Wayne Roberts |
0:7c7b86c38e6f | 6 | #define CF_HZ 915000000 |
Wayne Roberts |
0:7c7b86c38e6f | 7 | #elif defined(SX126x_H) |
Wayne Roberts |
0:7c7b86c38e6f | 8 | #define BW_KHZ 125 |
Wayne Roberts |
0:7c7b86c38e6f | 9 | #define SPREADING_FACTOR 7 |
Wayne Roberts |
0:7c7b86c38e6f | 10 | #define CF_HZ 915000000 |
Wayne Roberts |
0:7c7b86c38e6f | 11 | #elif defined(SX128x_H) |
Wayne Roberts |
0:7c7b86c38e6f | 12 | #define BW_KHZ 200 |
Wayne Roberts |
0:7c7b86c38e6f | 13 | #define SPREADING_FACTOR 7 |
Wayne Roberts |
0:7c7b86c38e6f | 14 | #define CF_HZ 2487000000 |
Wayne Roberts |
0:7c7b86c38e6f | 15 | #endif |
Wayne Roberts |
0:7c7b86c38e6f | 16 | |
Wayne Roberts |
0:7c7b86c38e6f | 17 | DigitalOut myled(LED1); |
Wayne Roberts |
0:7c7b86c38e6f | 18 | |
Wayne Roberts |
0:7c7b86c38e6f | 19 | /**********************************************************************/ |
Wayne Roberts |
0:7c7b86c38e6f | 20 | |
Wayne Roberts |
0:7c7b86c38e6f | 21 | void txDoneCB() |
Wayne Roberts |
0:7c7b86c38e6f | 22 | { |
Wayne Roberts |
0:7c7b86c38e6f | 23 | } |
Wayne Roberts |
0:7c7b86c38e6f | 24 | |
Wayne Roberts |
0:7c7b86c38e6f | 25 | void rxDoneCB(uint8_t size, float rssi, float snr) |
Wayne Roberts |
0:7c7b86c38e6f | 26 | { |
Wayne Roberts |
0:7c7b86c38e6f | 27 | unsigned i; |
Wayne Roberts |
0:7c7b86c38e6f | 28 | printf("%.1fdBm snr:%.1fdB\t", rssi, snr); |
Wayne Roberts |
0:7c7b86c38e6f | 29 | |
Wayne Roberts |
0:7c7b86c38e6f | 30 | myled.write(!myled.read()); // toggle LED |
Wayne Roberts |
0:7c7b86c38e6f | 31 | |
Wayne Roberts |
0:7c7b86c38e6f | 32 | for (i = 0; i < size; i++) { |
Wayne Roberts |
0:7c7b86c38e6f | 33 | printf("%02x ", Radio::radio.rx_buf[i]); |
Wayne Roberts |
0:7c7b86c38e6f | 34 | } |
Wayne Roberts |
0:7c7b86c38e6f | 35 | printf("\r\n"); |
Wayne Roberts |
0:7c7b86c38e6f | 36 | } |
Wayne Roberts |
0:7c7b86c38e6f | 37 | |
Wayne Roberts |
0:7c7b86c38e6f | 38 | const RadioEvents_t rev = { |
Wayne Roberts |
0:7c7b86c38e6f | 39 | /* Dio0_top_half */ NULL, |
Wayne Roberts |
0:7c7b86c38e6f | 40 | /* TxDone_topHalf */ NULL, |
Wayne Roberts |
0:7c7b86c38e6f | 41 | /* TxDone_botHalf */ txDoneCB, |
Wayne Roberts |
0:7c7b86c38e6f | 42 | /* TxTimeout */ NULL, |
Wayne Roberts |
0:7c7b86c38e6f | 43 | /* RxDone */ rxDoneCB, |
Wayne Roberts |
0:7c7b86c38e6f | 44 | /* RxTimeout */ NULL, |
Wayne Roberts |
0:7c7b86c38e6f | 45 | /* RxError */ NULL, |
Wayne Roberts |
0:7c7b86c38e6f | 46 | /* FhssChangeChannel */NULL, |
Wayne Roberts |
0:7c7b86c38e6f | 47 | /* CadDone */ NULL |
Wayne Roberts |
0:7c7b86c38e6f | 48 | }; |
Wayne Roberts |
0:7c7b86c38e6f | 49 | |
Wayne Roberts |
0:7c7b86c38e6f | 50 | int main() |
Wayne Roberts |
0:7c7b86c38e6f | 51 | { |
Wayne Roberts |
0:7c7b86c38e6f | 52 | printf("\r\nreset-rx\r\n"); |
Wayne Roberts |
0:7c7b86c38e6f | 53 | |
Wayne Roberts |
0:7c7b86c38e6f | 54 | Radio::Init(&rev); |
Wayne Roberts |
0:7c7b86c38e6f | 55 | |
Wayne Roberts |
0:7c7b86c38e6f | 56 | Radio::Standby(); |
Wayne Roberts |
0:7c7b86c38e6f | 57 | Radio::LoRaModemConfig(BW_KHZ, SPREADING_FACTOR, 1); |
Wayne Roberts |
0:7c7b86c38e6f | 58 | Radio::SetChannel(CF_HZ); |
Wayne Roberts |
0:7c7b86c38e6f | 59 | |
Wayne Roberts |
0:7c7b86c38e6f | 60 | // preambleLen, fixLen, crcOn, invIQ |
Wayne Roberts |
0:7c7b86c38e6f | 61 | Radio::LoRaPacketConfig(8, false, true, false); |
Wayne Roberts |
0:7c7b86c38e6f | 62 | |
Wayne Roberts |
0:7c7b86c38e6f | 63 | Radio::Rx(0); |
Wayne Roberts |
0:7c7b86c38e6f | 64 | |
Wayne Roberts |
0:7c7b86c38e6f | 65 | for (;;) { |
Wayne Roberts |
0:7c7b86c38e6f | 66 | Radio::service(); |
Wayne Roberts |
0:7c7b86c38e6f | 67 | } |
Wayne Roberts |
0:7c7b86c38e6f | 68 | } |
Wayne Roberts |
0:7c7b86c38e6f | 69 |