[SX126x] Don't reset the buffer base address when resetModule=false

Author: cleishm

src/modules/SX126x/SX126x.cpp

@@ -1384,7 +1384,7 @@ int16_t SX126x::modSetup(float tcxoVoltage, bool useRegulatorLDO, uint8_t modem,
   }
 
   // configure settings not accessible by API
-  state = config(modem);
+  state = config(modem, resetModule);
   RADIOLIB_ASSERT(state);
 
   if (useRegulatorLDO) {

src/modules/SX126x/SX126x.h

@@ -883,7 +883,7 @@ class SX126x: public PhysicalLayer {
     size_t lrFhssHopNum = 0;
 
     int16_t modSetup(float tcxoVoltage, bool useRegulatorLDO, uint8_t modem, bool resetModule = true);
-    int16_t config(uint8_t modem);
+    int16_t config(uint8_t modem, bool resetModule = true);
     bool findChip(const char* verStr, bool resetModule = true);
     int16_t startReceiveCommon(uint32_t timeout = RADIOLIB_SX126X_RX_TIMEOUT_INF, RadioLibIrqFlags_t irqFlags = RADIOLIB_IRQ_RX_DEFAULT_FLAGS, RadioLibIrqFlags_t irqMask = RADIOLIB_IRQ_RX_DEFAULT_MASK);
     int16_t setPacketMode(uint8_t mode, uint8_t len);

src/modules/SX126x/SX126x_config.cpp

@@ -757,10 +757,13 @@ int16_t SX126x::setFrequencyRaw(float freq) {
   return(setRfFrequency(frf));
 }
 
-int16_t SX126x::config(uint8_t modem) {
-  // reset buffer base address
-  int16_t state = setBufferBaseAddress();
-  RADIOLIB_ASSERT(state);
+int16_t SX126x::config(uint8_t modem, bool resetModule) {
+  int16_t state;
+  if (resetModule) {
+    // reset buffer base address
+    state = setBufferBaseAddress();
+    RADIOLIB_ASSERT(state);
+  }
 
   // set modem
   uint8_t data[7];