diff --git a/main.c b/main.c
index 90f635a..c81aa5b 100644
--- a/main.c
+++ b/main.c
@@ -1,47 +1,42 @@
-#include <stdint.h>
-#include <stdbool.h>
-#include "tm4c123gh6pm.h"
-
-void GPIO_PORT_F_init(void)
-{
-    SYSCTL_RCGC2_R |= 0x00000020;             // ENABLE CLOCK TO GPIOF
-    GPIO_PORTF_LOCK_R = 0x4C4F434B;           // UNLOCK COMMIT REGISTER
-    GPIO_PORTF_CR_R   = 0x1F;                 // MAKE PORTF0 CONFIGURABLE
-    GPIO_PORTF_DEN_R  = 0x1F;                 // SET PORTF DIGITAL ENABLE
-    GPIO_PORTF_DIR_R  = 0x0E;                 // SET PF0, PF4 as input and PF1, PF2 and PF3 as output
-    GPIO_PORTF_PUR_R  = 0x11;                 // PORTF PF0 and PF4 IS PULLED UP
-
-    NVIC_EN0_R |= 1 << 30;
-    GPIO_PORTF_IS_R  = 0x00;                  // EDGE SENSITIVE
-    GPIO_PORTF_IBE_R = 0x00;                  // ONE EDGE
-    GPIO_PORTF_IEV_R = 0x00;                  // INTERRUPT EVENT FALLING
-    GPIO_PORTF_IM_R  |= 0x11;                 // UNMASK INTERRUPT
-}
-
-
-void GPIO_PORT_B_init(void)
-{
-
-    SYSCTL_RCGCGPIO_R |= 0x02;                // ENABLE CLOCK FOR GPIOB
-    SYSCTL_RCGCUART_R |= 0x02;                // ENABLE CLOCK FOR UART1
-
-    GPIO_PORTB_DEN_R |= 0x03;                 // DIGITAL ENABLE FOR PB0 AND PB1
-    GPIO_PORTB_AFSEL_R |= 0x03;               // ENABLE ALTERNATE FUNCTION ON PB0,PB1
-
-    GPIO_PORTB_PCTL_R = (GPIO_PORTB_PCTL_R & 0xFFFFFF00) | 0x00000011; // Set PB0, PB1 for UART
-
-    UART1_CTL_R &= ~0x01;                     // DISABLE UART1 DURING SETUP
-    UART1_IBRD_R = 104;                       // Set integer part of baud rate (for 9600 baud at 16 MHz clock)
-    UART1_FBRD_R = 11;                        // Set fractional part of baud rate
-    UART1_LCRH_R = 0x62;                      // 8-bit, odd parity, 1 stop bit
-    UART1_CC_R = 0x00;                        // Use system clock
-
-    UART1_CTL_R |= 0x301;                     // Enable UART1, RX, and TX
-
-}
-
-char UART1_READ(void)
-{
-    while (UART1_FR_R & 0x10);                // Wait until RX FIFO is not empty
-    return (char)UART1_DR_R;                  // Return received data
-}
+#include <stdint.h>
+#include <stdbool.h>
+#include "tm4c123gh6pm.h"
+
+void GPIO_PORT_F_init(void)
+{
+    SYSCTL_RCGC2_R |= 0x00000020;             // ENABLE CLOCK TO GPIOF
+    GPIO_PORTF_LOCK_R = 0x4C4F434B;           // UNLOCK COMMIT REGISTER
+    GPIO_PORTF_CR_R   = 0x1F;                 // MAKE PORTF0 CONFIGURABLE
+    GPIO_PORTF_DEN_R  = 0x1F;                 // SET PORTF DIGITAL ENABLE
+    GPIO_PORTF_DIR_R  = 0x0E;                 // SET PF0, PF4 as input and PF1, PF2 and PF3 as output
+    GPIO_PORTF_PUR_R  = 0x11;                 // PORTF PF0 and PF4 IS PULLED UP
+
+}
+
+
+void GPIO_PORT_B_init(void)
+{
+
+    SYSCTL_RCGCGPIO_R |= 0x02;                // ENABLE CLOCK FOR GPIOB
+    SYSCTL_RCGCUART_R |= 0x02;                // ENABLE CLOCK FOR UART1
+
+    GPIO_PORTB_DEN_R |= 0x03;                 // DIGITAL ENABLE FOR PB0 AND PB1
+    GPIO_PORTB_AFSEL_R |= 0x03;               // ENABLE ALTERNATE FUNCTION ON PB0,PB1
+
+    GPIO_PORTB_PCTL_R = (GPIO_PORTB_PCTL_R & 0xFFFFFF00) | 0x00000011; // Set PB0, PB1 for UART
+
+    UART1_CTL_R &= ~0x01;                     // DISABLE UART1 DURING SETUP
+    UART1_IBRD_R = 104;                       // Set integer part of baud rate (for 9600 baud at 16 MHz clock)
+    UART1_FBRD_R = 11;                        // Set fractional part of baud rate
+    UART1_LCRH_R = 0x62;                      // 8-bit, odd parity, 1 stop bit
+    UART1_CC_R = 0x00;                        // Use system clock
+
+    UART1_CTL_R |= 0x301;                     // Enable UART1, RX, and TX
+
+}
+
+char UART1_READ(void)
+{
+    while (UART1_FR_R & 0x10);                // Wait until RX FIFO is not empty
+    return (char)UART1_DR_R;                  // Return received data
+}