Initialization 2_Abdullah

# include "stdint.h"
# include "math.h"
# include "stdio.h"
# include "string.h"
# include "stdlib.h"
# include "TM4C123GH6PM.h"


void SystemInit(){}

 volatile long double lat2 = 0;
 volatile long double long2 = 0;
 volatile long double dist = 0;
 volatile long double long1 = 0;
 volatile long double lat1 = 0;
 volatile long double long1temp = 0;
 volatile long double lat1temp = 0;
 volatile long double theta = 0;
 volatile long double lastdist = 0;
 volatile long double dist1 = 0;
 volatile long double dist2 = 0;
 volatile long double PI = 3.14159265358979323846264338327950288;

char Start0[] = "Press SW2 to";
char Start1[] = "start";
char Stop0[] =  "Press SW1 at";
char Stop1[] =  "any time to stop";
char Stop2[] =  "Press SW1 again";
char Distance[] = "Distance=";

void init_uart(void)
{
    GPIO_PORTE_LOCK_R = 0x4C4F434B;
    GPIO_PORTE_CR_R     |= 0x30;
        GPIO_PORTE_AFSEL_R  |= 0x30 ;
        GPIO_PORTE_AMSEL_R  &= ~ 0x30 ;
        GPIO_PORTE_PCTL_R   |= 0x00110000 ;
        GPIO_PORTE_DEN_R    |= 0x30 ;

        UART5_CTL_R &= ~0x301;      // disable UART5
        UART5_IBRD_R = 104;         // baudrate(integer part) = 16000000/(16*9600)= 104.1666667 , integer = 104
        UART5_FBRD_R = 11;          // baudrate(fraction part) = round(0.1667*64)= 11
        UART5_LCRH_R = 0x00000070;  // enable FIFO ,no parity, one stop, 8-bit data
        UART5_CTL_R |= 0x301;       // enable UART5
}

char read_uart(void)
{
    while((UART5_FR_R&0x0010)!=0){}
            return((char)UART5_DR_R&0xFF);
}

/*
1-delay function
2-function prints and perform orders to lcd
3-LCD Commands to initalize LCD
*/

//delay function takes an integer as a parameter and produce a time delay equal to this integer multipled by 10 nanoseconds

void delay10Ns(int time)
{
    int i;
    for(i = 0; i < time; i++)
    {}
}