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Enable fast preamble and change fast preamble length to 4ms

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master
jacob.eva 4 months ago
parent 7f493a33d3
commit 55c6bd06a2
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GPG Key ID: B92E083BBCCAA1E
2 changed files with 5 additions and 5 deletions
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  1. 8
      Radio.cpp
  2. 2
      Radio.hpp

8
Radio.cpp
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@ -2644,11 +2644,11 @@ void sx128x::updateBitrate() {
if (_csma_slot_ms < CSMA_SLOT_MIN_MS) { _csma_slot_ms = CSMA_SLOT_MIN_MS; }
float target_preamble_symbols;
//if (_bitrate <= LORA_FAST_BITRATE_THRESHOLD) {
if (_bitrate <= LORA_FAST_BITRATE_THRESHOLD) {
target_preamble_symbols = (LORA_PREAMBLE_TARGET_MS/_lora_symbol_time_ms)-LORA_PREAMBLE_SYMBOLS_HW;
//} else {
/*target_preamble_symbols = (LORA_PREAMBLE_FAST_TARGET_MS/_lora_symbol_time_ms)-LORA_PREAMBLE_SYMBOLS_HW;
}*/
} else {
target_preamble_symbols = (LORA_PREAMBLE_FAST_TARGET_MS/_lora_symbol_time_ms)-LORA_PREAMBLE_SYMBOLS_HW;
}
if (target_preamble_symbols < LORA_PREAMBLE_SYMBOLS_MIN) {
target_preamble_symbols = LORA_PREAMBLE_SYMBOLS_MIN;
} else {

2
Radio.hpp
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@ -34,7 +34,7 @@
#define LORA_PREAMBLE_SYMBOLS_HW 4
#define LORA_PREAMBLE_SYMBOLS_MIN 18
#define LORA_PREAMBLE_TARGET_MS 15
#define LORA_PREAMBLE_FAST_TARGET_MS 1
#define LORA_PREAMBLE_FAST_TARGET_MS 4
#define LORA_FAST_BITRATE_THRESHOLD 40000
#define CSMA_SLOT_MAX_MS 100
#define CSMA_SLOT_MIN_MS 24

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