Files
MeshCore/examples/kiss_modem/main.cpp
2026-01-31 10:22:32 +01:00

109 lines
2.3 KiB
C++

#include <Arduino.h>
#include <target.h>
#include <helpers/ArduinoHelpers.h>
#include <helpers/IdentityStore.h>
#include "KissModem.h"
#if defined(NRF52_PLATFORM)
#include <InternalFileSystem.h>
#elif defined(RP2040_PLATFORM)
#include <LittleFS.h>
#elif defined(ESP32)
#include <SPIFFS.h>
#endif
StdRNG rng;
mesh::LocalIdentity identity;
KissModem* modem;
void halt() {
while (1) ;
}
void loadOrCreateIdentity() {
#if defined(NRF52_PLATFORM)
InternalFS.begin();
IdentityStore store(InternalFS, "");
#elif defined(ESP32)
SPIFFS.begin(true);
IdentityStore store(SPIFFS, "/identity");
#elif defined(RP2040_PLATFORM)
LittleFS.begin();
IdentityStore store(LittleFS, "/identity");
store.begin();
#else
#error "Filesystem not defined"
#endif
if (!store.load("_main", identity)) {
identity = radio_new_identity();
while (identity.pub_key[0] == 0x00 || identity.pub_key[0] == 0xFF) {
identity = radio_new_identity();
}
store.save("_main", identity);
}
}
void onSetRadio(float freq, float bw, uint8_t sf, uint8_t cr) {
radio_set_params(freq, bw, sf, cr);
}
void onSetTxPower(uint8_t power) {
radio_set_tx_power(power);
}
void onSetSyncWord(uint8_t sync_word) {
radio_set_sync_word(sync_word);
}
void setup() {
board.begin();
if (!radio_init()) {
halt();
}
radio_driver.begin();
rng.begin(radio_get_rng_seed());
loadOrCreateIdentity();
Serial.begin(115200);
uint32_t start = millis();
while (!Serial && millis() - start < 3000) delay(10);
delay(100);
modem = new KissModem(Serial, identity, rng);
modem->setRadioCallback(onSetRadio);
modem->setTxPowerCallback(onSetTxPower);
modem->setSyncWordCallback(onSetSyncWord);
modem->begin();
}
void loop() {
modem->loop();
uint8_t packet[KISS_MAX_PACKET_SIZE];
uint16_t len;
if (modem->getPacketToSend(packet, &len)) {
radio_driver.startSendRaw(packet, len);
while (!radio_driver.isSendComplete()) {
delay(1);
}
radio_driver.onSendFinished();
modem->onTxComplete(true);
}
uint8_t rx_buf[256];
int rx_len = radio_driver.recvRaw(rx_buf, sizeof(rx_buf));
if (rx_len > 0) {
int8_t snr = (int8_t)(radio_driver.getLastSNR() * 4);
int8_t rssi = (int8_t)radio_driver.getLastRSSI();
modem->onPacketReceived(snr, rssi, rx_buf, rx_len);
}
radio_driver.loop();
}