Update main.c

Add main function

main.c

@@ -48,3 +48,14 @@ void GPIOF_interruptHandler(void)               // Interrupt handler for GPIO Po
         GPIO_PORTF_ICR_R = 0x01;                // Clear interrupt flag for PF0
     }
 }
+int main(void)                                 // MAIN FUNCTION
+{
+    GPIO_PORT_F_init();                        // GPIO INITIALISATION FUNCTION
+
+    while (1)
+    {
+    }
+}
+
+
+