Fix LR1121 binding (ExpressLRS#2617)

* fix LR1121 binding * remove magic
CapnBry · Apr 1, 2024 · 1dcf70b · 1dcf70b
1 parent 05ebcfe
commit 1dcf70b
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diff --git a/src/include/common.h b/src/include/common.h
@@ -247,6 +247,7 @@ extern SX127xDriver Radio;
 #elif defined(RADIO_LR1121)
 #define RATE_MAX 14
 #define RATE_BINDING RATE_LORA_50HZ
+#define RATE_DUALBAND_BINDING 9 // 2.4GHz 50Hz
 
 extern LR1121Driver Radio;
 

diff --git a/src/src/tx_main.cpp b/src/src/tx_main.cpp
@@ -976,6 +976,14 @@ static void EnterBindingMode()
   // Start attempting to bind
   // Lock the RF rate and freq while binding
   SetRFLinkRate(enumRatetoIndex(RATE_BINDING));
+
+#if defined(RADIO_LR1121)
+  FHSSuseDualBand = true;
+  expresslrs_mod_settings_s *const dualBandBindingModParams = get_elrs_airRateConfig(RATE_DUALBAND_BINDING); // 2.4GHz 50Hz
+  Radio.Config(dualBandBindingModParams->bw2, dualBandBindingModParams->sf2, dualBandBindingModParams->cr2, FHSSgetInitialGeminiFreq(),
+               dualBandBindingModParams->PreambleLen2, true, dualBandBindingModParams->PayloadLength, dualBandBindingModParams->interval, SX12XX_Radio_2);
+#endif
+
   Radio.SetFrequencyReg(FHSSgetInitialFreq());
   if (isDualRadio() && config.GetAntennaMode() == TX_RADIO_MODE_GEMINI) // Gemini mode
   {