Park unused LNA_CTRL_MCU net with pulldown on makerfabs_pucky

variants/nrf52840/makerfabs_pucky/variant.cpp

@@ -40,4 +40,7 @@ void initVariant()
     // Power latch
     pinMode(POWER_ON_OFF, OUTPUT);
     digitalWrite(POWER_ON_OFF, HIGH);
+
+    // Park the unconnected LNA_CTRL_MCU net so it does not float
+    pinMode(LNA_CTRL_PIN, INPUT_PULLDOWN);
 }

variants/nrf52840/makerfabs_pucky/variant.h

@@ -160,6 +160,8 @@ static const uint8_t SCK = PIN_SPI_SCK;
 // VDD=3.3V AIN3=6/8*VDD=2.47V VBAT=1.66*AIN3=4.1V
 // #define BATTERY_LPCOMP_THRESHOLD NRF_LPCOMP_REF_SUPPLY_11_16
 
+#define LNA_CTRL_PIN 4 // P0.04
+
 #define HOCKEY_PUCK 1
 #define NUM_PA_POINTS 22
 #define TX_GAIN_LORA 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 10, 9, 8, 7