Add reset functions + default bandwidth for SX127X

Radio.cpp

@@ -1054,7 +1054,7 @@ sx127x::sx127x(uint8_t index, SPIClass* spi, int ss, int sclk, int mosi, int mis
     _spiSettings(8E6, MSBFIRST, SPI_MODE0),
     _spiModem(spi),
   _ss(ss), _sclk(sclk), _mosi(mosi), _miso(miso),  _reset(reset), _dio0(dio0),
-  _busy(busy), _frequency(0), _packetIndex(0), _preinit_done(false), _bw(0)
+  _busy(busy), _frequency(0), _packetIndex(0), _preinit_done(false), _bw(7800)
 { setTimeout(0); }
 
 void sx127x::setSPIFrequency(uint32_t frequency) { _spiSettings = SPISettings(frequency, MSBFIRST, SPI_MODE0); }
@@ -1114,7 +1114,7 @@ uint8_t ISR_VECT sx127x::singleTransfer(uint8_t address, uint8_t value) {
   return response;
 }
 
-int sx127x::begin() {
+void sx127x::reset() {
   if (_reset != -1) {
       pinMode(_reset, OUTPUT);
 
@@ -1124,6 +1124,10 @@ int sx127x::begin() {
       digitalWrite(_reset, HIGH);
       delay(10);
   }
+}
+
+int sx127x::begin() {
+    reset();
 
   sleep();
 
@@ -1799,7 +1803,7 @@ void sx128x::setPacketParams(uint32_t target_preamble, uint8_t headermode, uint8
   _last_preamble = target_preamble;
 }
 
-int sx128x::begin()
+void sx128x::reset()
 {
   if (_reset != -1) {
     pinMode(_reset, OUTPUT);
@@ -1810,6 +1814,11 @@ int sx128x::begin()
     digitalWrite(_reset, HIGH);
     delay(10);
   }
+}
+
+int sx128x::begin()
+{
+    reset();
 
   if (_rxen != -1) {
       pinMode(_rxen, OUTPUT);

Radio.hpp

@@ -100,6 +100,8 @@ public:
     _lora_preamble_time_ms(0), _lora_header_time_ms(0), _lora_symbol_rate(0.0), _lora_us_per_byte(0.0), _bitrate(0),
      _packet{0}, _onReceive(NULL), _txp(0), _ldro(false), _limit_rate(false), _interference_detected(false), _avoid_interference(true), _difs_ms(CSMA_SIFS_MS + 2 * _csma_slot_ms), _difs_wait_start(0), _cw_wait_start(0), _cw_wait_target(0), _cw_wait_passed(0), _csma_cw(-1), _cw_band(1), _cw_min(0), _cw_max(CSMA_CW_PER_BAND_WINDOWS), _noise_floor_sampled(false), _noise_floor_sample(0), _noise_floor_buffer({0}), _noise_floor(-292), _led_id_filter(0), _preamble_detected_at(0) {};
 
+    virtual void reset() = 0;
+
     virtual int begin() = 0;
     virtual void end() = 0;
 
@@ -155,7 +157,6 @@ public:
     void updateBitrate() {
 		if (!_radio_online) { _bitrate = 0; }
 		else {
-
 			_lora_symbol_rate = (float)getSignalBandwidth()/(float)(pow(2, _sf));
 			_lora_symbol_time_ms = (1.0/_lora_symbol_rate)*1000.0;
 			_bitrate = (uint32_t)(_sf * ( (4.0/(float)getCodingRate4()) / ((float)(pow(2, _sf))/((float)getSignalBandwidth()/1000.0)) ) * 1000.0);
@@ -461,6 +462,8 @@ public:
   sx126x(uint8_t index, SPIClass* spi, bool tcxo, bool dio2_as_rf_switch, int ss, int sclk, int mosi, int miso, int reset, int
           dio0, int busy, int rxen);
 
+  void reset();
+
   int begin();
   void end();
 
@@ -541,7 +544,6 @@ private:
   void handleLowDataRate();
   void optimizeModemSensitivity();
 
-  void reset(void);
   void calibrate(void);
   void calibrate_image(uint32_t frequency);
   bool getPacketValidity();
@@ -575,6 +577,8 @@ class sx127x : public RadioInterface {
 public:
   sx127x(uint8_t index, SPIClass* spi, int ss, int sclk, int mosi, int miso, int reset, int dio0, int busy);
 
+  void reset();
+
   int begin();
   void end();
 
@@ -667,6 +671,8 @@ class sx128x : public RadioInterface {
 public:
   sx128x(uint8_t index, SPIClass* spi, bool tcxo, int ss, int sclk, int mosi, int miso, int reset, int dio0, int busy, int rxen, int txen);
 
+  void reset();
+
   int begin();
   void end();