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Adjusted preamble and airtime calculations

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This commit is contained in:
Mark Qvist
2023-09-14 13:00:40 +02:00
parent eb7b5c6c26
commit 9fd379486d
3 changed files with 27 additions and 13 deletions
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10
RNode_Firmware.ino
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@@ -318,6 +318,7 @@ bool startRadio() {
setBandwidth();
setSpreadingFactor();
setCodingRate();
setPreamble();
getFrequency();
LoRa.enableCrc();
@@ -403,12 +404,17 @@ void flushQueue(void) {
queue_flushing = false;
}
#define PHY_HEADER_LORA_SYMBOLS 8
void add_airtime(uint16_t written) {
#if MCU_VARIANT == MCU_ESP32
float ms_cost = ((float)written * us_per_byte)/1000.0;
float packet_cost_ms = 0.0;
float payload_cost_ms = ((float)written * lora_us_per_byte)/1000.0;
packet_cost_ms += payload_cost_ms;
packet_cost_ms += (lora_preamble_symbols+4.25)*lora_symbol_time_ms;
packet_cost_ms += PHY_HEADER_LORA_SYMBOLS * lora_symbol_time_ms;
uint16_t cb = current_airtime_bin();
uint16_t nb = cb+1; if (nb == AIRTIME_BINS) { nb = 0; }
airtime_bins[cb] += ms_cost;
airtime_bins[cb] += packet_cost_ms;
airtime_bins[nb] = 0;
#endif
}