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Add periodic noise floor calibration and AGC reset

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This commit is contained in:
ViezeVingertjes
2026-02-06 11:13:28 +01:00
parent 5dcc377b77
commit f78617dbdb
1 changed files with 16 additions and 3 deletions
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19
examples/kiss_modem/main.cpp
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@@ -12,9 +12,14 @@
#include <SPIFFS.h> #include <SPIFFS.h>
#endif #endif
#define NOISE_FLOOR_CALIB_INTERVAL_MS 2000
#define AGC_RESET_INTERVAL_MS 30000
StdRNG rng; StdRNG rng;
mesh::LocalIdentity identity; mesh::LocalIdentity identity;
KissModem* modem; KissModem* modem;
static uint32_t next_noise_floor_calib_ms = 0;
static uint32_t next_agc_reset_ms = 0;
void halt() { void halt() {
while (1) ; while (1) ;
@@ -107,16 +112,24 @@ void setup() {
void loop() { void loop() {
modem->loop(); modem->loop();
if ((uint32_t)(millis() - next_noise_floor_calib_ms) >= NOISE_FLOOR_CALIB_INTERVAL_MS) {
radio_driver.triggerNoiseFloorCalibrate(0);
next_noise_floor_calib_ms = millis();
}
radio_driver.loop();
if (!modem->isTxBusy()) { if (!modem->isTxBusy()) {
if ((uint32_t)(millis() - next_agc_reset_ms) >= AGC_RESET_INTERVAL_MS) {
radio_driver.resetAGC();
next_agc_reset_ms = millis();
}
uint8_t rx_buf[256]; uint8_t rx_buf[256];
int rx_len = radio_driver.recvRaw(rx_buf, sizeof(rx_buf)); int rx_len = radio_driver.recvRaw(rx_buf, sizeof(rx_buf));
if (rx_len > 0) { if (rx_len > 0) {
int8_t snr = (int8_t)(radio_driver.getLastSNR() * 4); int8_t snr = (int8_t)(radio_driver.getLastSNR() * 4);
int8_t rssi = (int8_t)radio_driver.getLastRSSI(); int8_t rssi = (int8_t)radio_driver.getLastRSSI();
modem->onPacketReceived(snr, rssi, rx_buf, rx_len); modem->onPacketReceived(snr, rssi, rx_buf, rx_len);
} }
} }
radio_driver.loop();
} }