diff --git a/examples/GPIO_analogRead/wiring.c b/examples/GPIO_analogRead/wiring.c
index d6968570f124fd81c5d5adefdfa7428cb7ea2376..e0acde1977e48cc74ac45f7b33c123d25e028758 100644
--- a/examples/GPIO_analogRead/wiring.c
+++ b/examples/GPIO_analogRead/wiring.c
@@ -6,12 +6,9 @@
 
 
 enum GPIOports getPort (enum GPIOpins pin) {
-	if (pin <= pin_A7) {
+	if (pin <= pin_A2) {
 		return port_A;
 	}
-	else if (pin <= pin_B7) {
-		return port_B;
-	}
 	else if (pin <= pin_C7) {
 		return port_C;
 	}
@@ -29,8 +26,6 @@ void portEnable(enum GPIOports port) {
 		case port_A:
 			RCC->APB2PCENR |= RCC_APB2Periph_GPIOA;
 			break;
-		case port_B:
-			break;
 		case port_C:
 			RCC->APB2PCENR |= RCC_APB2Periph_GPIOC;
 			break;
@@ -43,6 +38,7 @@ void portEnable(enum GPIOports port) {
 }
 
 
+
 void pinMode(enum GPIOpins pin, enum GPIOpinMode mode) {
 	GPIO_TypeDef * GPIOx;
 	uint16_t PinOffset;
@@ -54,7 +50,7 @@ void pinMode(enum GPIOpins pin, enum GPIOpinMode mode) {
 	
 	uint8_t target_pin_state = pinState_nochange;					// by default, pin shall retain its state
 
-	uint8_t modeMask = 0;												// configuration mask										// configuration mask
+	uint8_t modeMask = 0;												// configuration mask
 
 	switch (mode) {
 		case pinMode_I_floating:
@@ -105,10 +101,6 @@ void digitalWrite(enum GPIOpins pin, uint8_t value) {
 		GPIOx = GPIOA;
 		PinOffset = pin;
 	}
-	else if (pin <= pin_B7) { /* GPIOB doesn't exist (yet?)
-		GPIOx = GPIOB;
-		PinOffset = (pin - 8); */
-	}
 	else if (pin <= pin_C7) {
 		GPIOx = GPIOC;
 		PinOffset = (pin - 16);
@@ -139,10 +131,6 @@ uint8_t digitalRead(uint8_t pin) {
 		GPIOx = GPIOA;
 		PinOffset = pin;
 	}
-	else if (pin <= pin_B7) { /* GPIOB doesn't exist (yet?)
-		GPIOx = GPIOB;
-		PinOffset = (pin - 8); */
-	}
 	else if (pin <= pin_C7) {
 		GPIOx = GPIOC;
 		PinOffset = (pin - 16);