Added ability to specify per-board transceiver OCP limit

Boards.h

@@ -227,6 +227,7 @@
         #define HAS_TCXO true
         #define HAS_BUSY true
         #define DIO2_AS_RF_SWITCH true
+        #define OCP_TUNED 0x38
         const int pin_busy = 32;
         const int pin_dio = 33;
         const int pin_tcxo_enable = -1;
@@ -331,6 +332,7 @@
       #define HAS_SLEEP true
       #define PIN_WAKEUP GPIO_NUM_0
       #define WAKEUP_LEVEL 0
+      #define OCP_TUNED 0x28
 
       const int pin_btn_usr1 = 0;
 
@@ -519,6 +521,7 @@
       #define DIO2_AS_RF_SWITCH true
       #define HAS_BUSY true
       #define HAS_TCXO true
+      #define OCP_TUNED 0x38
 
       #define HAS_DISPLAY true
       #define HAS_CONSOLE true

sx126x.cpp

@@ -771,7 +771,7 @@ void sx126x::setTxPower(int level, int outputPin) {
     if (level > 22) { level = 22; }
     else if (level < -9) { level = -9; }
 
-    writeRegister(REG_OCP_6X, 0x38); // 160mA limit, overcurrent protection
+    writeRegister(REG_OCP_6X, OCP_TUNED); // Use board-specific tuned OCP
 
     uint8_t tx_buf[2];