diff --git a/main.c b/main.c
index 75eb45b..8b5686e 100644
--- a/main.c
+++ b/main.c
@@ -1,9 +1,35 @@
+#include <stdint.h>
+#include <stdbool.h>
+#include "tm4c123gh6pm.h"
 
-
-/**
- * main.c
- */
 int main(void)
 {
-	return 0;
+    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 = 0x1E;            /* set PORTF pins 4 pin */
+    GPIO_PORTF_DIR_R = 0x0E;            /* set PORTF4 pin as input user switch pin */
+    GPIO_PORTF_PUR_R = 0x10;            /* PORTF4 is pulled up */
+
+
+   long int x;
+
+   while(1)
+   {
+       //TURN ON LED
+       x=0;
+       GPIO_PORTF_DATA_R = 0x02;
+       //WAIT FOR 500ms
+       while(x<667750)
+           x++;
+
+       //TURN OFF LED
+       x=0;
+       GPIO_PORTF_DATA_R = 0x00;
+       //WAIT FOR 500ms
+       while(x<667750)
+                  x++;
+
+
+   }
 }