66 lines
2.4 KiB
C++
66 lines
2.4 KiB
C++
// lora_tx.cpp — LR1121 transmit test
|
|
// Usage: sudo ./lora_tx [-v] [--433|--868|--24|freq_hz]
|
|
// -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
|
|
//
|
|
// Requires SPI: sudo raspi-config → Interfaces → SPI → Yes → reboot
|
|
#include <cstdio>
|
|
#include <cstdlib>
|
|
#include <cstring>
|
|
#include <thread>
|
|
#include <chrono>
|
|
#include "lr1121_malnus.hpp"
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
lr1121::Config cfg;
|
|
cfg.verbose = false;
|
|
cfg.pa_sel = 0x01; // HP PA — most modules; change to 0x00 for LP
|
|
cfg.tx_dbm = 14;
|
|
cfg.sf = 0x07; // SF7
|
|
cfg.bw = 0x04; // 125 kHz
|
|
cfg.cr = 0x01; // CR 4/5
|
|
|
|
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 cfg.freq_hz = (uint32_t)std::strtoul(argv[i], nullptr, 10);
|
|
}
|
|
|
|
std::printf("lora_tx: %u Hz SF%u BW=0x%02X PA=%s%s\n",
|
|
cfg.freq_hz, cfg.sf, cfg.bw,
|
|
cfg.pa_sel ? "HP" : "LP",
|
|
cfg.verbose ? " [verbose]" : "");
|
|
|
|
lr1121::Radio radio;
|
|
if (!radio.begin(cfg)) {
|
|
std::fprintf(stderr, "ERROR: radio init failed\n"
|
|
" Check: SPI enabled? wiring? DIO5/DIO6 connected?\n"
|
|
" If fw looks like bootloader: sudo ./lora_rx --reset\n"
|
|
" Run with -v for step-by-step output\n");
|
|
return 1;
|
|
}
|
|
auto ver = radio.getVersion();
|
|
if (ver.fw_hi < 0x02)
|
|
std::fprintf(stderr, "hint: fw=0x%02X%02X — try: sudo ./lora_rx --reset\n",
|
|
ver.fw_hi, ver.fw_lo);
|
|
std::printf("Radio OK — sending every second\n");
|
|
|
|
for (int n = 0; ; ++n) {
|
|
char msg[32];
|
|
int len = std::snprintf(msg, sizeof(msg), "hello %d", n);
|
|
bool ok = radio.send((const uint8_t *)msg, (uint8_t)len);
|
|
std::printf("[%4d] tx '%s' → %s\n", n, msg, ok ? "OK" : "TIMEOUT");
|
|
std::this_thread::sleep_for(std::chrono::seconds(1));
|
|
}
|
|
|
|
radio.end();
|
|
return 0;
|
|
}
|