96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
// lora_rx.cpp — LR1121 receive test
|
|
// Usage: sudo ./lora_rx [-v] [--433|--868|--24|freq_hz] [--reset]
|
|
// -v verbose step labels (shows exactly where init hangs)
|
|
// --433 433.05 MHz (default)
|
|
// --868 868 MHz
|
|
// --24 2403 MHz
|
|
// freq_hz any raw frequency in Hz
|
|
// --reset send Reboot(app) to escape bootloader, print fw before/after, exit
|
|
//
|
|
// TX and RX must use identical SF/BW/CR/freq settings.
|
|
// Requires SPI: sudo raspi-config → Interfaces → SPI → Yes → reboot
|
|
#include <cstdio>
|
|
#include <cstdlib>
|
|
#include <cstring>
|
|
#include "lr1121_malnus.hpp"
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
lr1121::Config cfg;
|
|
cfg.verbose = false;
|
|
cfg.pa_sel = 0x01;
|
|
cfg.tx_dbm = 14;
|
|
cfg.sf = 0x07; // SF7
|
|
cfg.bw = 0x04; // 125 kHz
|
|
cfg.cr = 0x01; // CR 4/5
|
|
bool do_reset = false;
|
|
|
|
for (int i = 1; i < argc; ++i) {
|
|
if (std::strcmp(argv[i], "-v") == 0) cfg.verbose = true;
|
|
else if (std::strcmp(argv[i], "--433") == 0) cfg.freq_hz = lr1121::FREQ_433;
|
|
else if (std::strcmp(argv[i], "--868") == 0) cfg.freq_hz = lr1121::FREQ_868;
|
|
else if (std::strcmp(argv[i], "--24") == 0 ||
|
|
std::strcmp(argv[i], "--2g4") == 0) cfg.freq_hz = lr1121::FREQ_2400;
|
|
else if (std::strcmp(argv[i], "--reset") == 0) do_reset = true;
|
|
else cfg.freq_hz = (uint32_t)std::strtoul(argv[i], nullptr, 10);
|
|
}
|
|
|
|
std::printf("lora_rx: %u Hz SF%u BW=0x%02X%s\n",
|
|
cfg.freq_hz, cfg.sf, cfg.bw,
|
|
cfg.verbose ? " [verbose]" : "");
|
|
|
|
if (do_reset) {
|
|
cfg.verbose = true;
|
|
lr1121::Radio radio;
|
|
if (!radio.beginRaw(cfg)) {
|
|
std::fprintf(stderr, "ERROR: cannot open SPI/GPIO\n");
|
|
return 1;
|
|
}
|
|
auto v1 = radio.getVersion();
|
|
std::printf("before reboot: hw=0x%02X type=0x%02X fw=0x%02X%02X\n",
|
|
v1.hw, v1.type, v1.fw_hi, v1.fw_lo);
|
|
std::printf("sending Reboot(app)...\n");
|
|
radio.reboot(false);
|
|
auto v2 = radio.getVersion();
|
|
std::printf("after reboot: hw=0x%02X type=0x%02X fw=0x%02X%02X\n",
|
|
v2.hw, v2.type, v2.fw_hi, v2.fw_lo);
|
|
if (v2.fw_hi >= 0x02)
|
|
std::printf("OK — application firmware active (fw >= 0x02xx)\n"
|
|
"Run without --reset to continue.\n");
|
|
else
|
|
std::printf("Still in bootloader (fw=0x%02X%02X).\n",
|
|
v2.fw_hi, v2.fw_lo);
|
|
radio.end();
|
|
return 0;
|
|
}
|
|
|
|
lr1121::Radio radio;
|
|
if (!radio.begin(cfg)) {
|
|
std::fprintf(stderr, "ERROR: radio init failed\n"
|
|
" Check: SPI enabled? wiring? DIO5/DIO6 connected?\n"
|
|
" Run with -v for step-by-step output\n");
|
|
return 1;
|
|
}
|
|
std::printf("Radio OK — listening (Ctrl+C to stop)\n\n");
|
|
|
|
uint8_t buf[256];
|
|
int pkt = 0;
|
|
for (;;) {
|
|
lr1121::RxInfo info{};
|
|
int r = radio.receive(buf, (uint8_t)(sizeof(buf) - 1), 30'000, &info);
|
|
|
|
if (r > 0) {
|
|
buf[r] = '\0';
|
|
std::printf("[%4d] %d B rssi=%d dBm snr=%d dB '%s'\n",
|
|
++pkt, r, info.rssi_dbm, info.snr_db, buf);
|
|
} else if (r == -1) {
|
|
std::printf(" timeout (30s), still listening...\n");
|
|
} else if (r == -2) {
|
|
std::printf(" CRC error\n");
|
|
}
|
|
}
|
|
|
|
radio.end();
|
|
return 0;
|
|
}
|