Implemented TX PA Clamping, datasheet section 15.2

src/modules/SX1262.cpp

@@ -22,6 +22,11 @@ int16_t SX1262::begin(float freq, float bw, uint8_t sf, uint8_t cr, uint16_t syn
     return(state);
   }
 
+  state = fixPaClamping();
+  if (state != ERR_NONE) {
+    return state;
+  }
+
   return(state);
 }
 
@@ -110,3 +115,13 @@ int16_t SX1262::setOutputPower(int8_t power) {
   // restore OCP configuration
   return(writeRegister(SX126X_REG_OCP_CONFIGURATION, &ocp, 1));
 }
+
+int16_t SX1262::fixPaClamping() {
+  uint8_t clampConfig;
+  uint16_t state = readRegister(SX126X_REG_TX_CLAMP_CONFIG, &clampConfig, 1);
+  if (state != ERR_NONE) {
+    return state;
+  }
+  clampConfig |= 0x1E;
+  return writeRegister(SX126X_REG_TX_CLAMP_CONFIG, &clampConfig, 1);
+}

src/modules/SX1262.h

@@ -8,6 +8,7 @@
 //SX126X_CMD_SET_PA_CONFIG
 #define SX126X_PA_CONFIG_SX1261                       0x01
 #define SX126X_PA_CONFIG_SX1262                       0x00
+#define SX126X_REG_TX_CLAMP_CONFIG                    0x08D8 //Datasheet 15.2
 
 /*!
   \class SX1262
@@ -94,8 +95,10 @@ class SX1262: public SX126x {
     int16_t setOutputPower(int8_t power);
 
   private:
-
+    /*!
-
+      \brief Fixes overly eager PA clamping, as described in section 15.2 of the datasheet
+    */
+    int16_t fixPaClamping();
 };
 
 #endif