//------------------------------------------------------------------------------------
//																	LCD Module
//------------------------------------------------------------------------------------
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "MainHeader.h"
#define LCD_E_PIN 			0x08
#define LCR_RW_PIN 			0x10
#define LCD_RS_PIN 			0x20
typedef unsigned char uint8;

void LCD_Goto_XY ( unsigned char x, unsigned char y)
{
unsigned char row_start_address [] = {0x80 , 0xC0 };

// Move cursor to (x,y) location on display
LCD_Send_Command ( row_start_address [y -1] + x - 1);
Delay (170) ; // Delay for approx . 1.6 ms
}
void GPIO_Port_Init (void)
{

	// Clock Gating Control
SYSCTL_RCGCGPIO_R |= 0x12 ; // enable clock for Port // GPIO configuration for Port B
	Delay(100);
GPIO_PORTB_DIR_R |= 0xFF ; // Port B as output
GPIO_PORTB_DEN_R |= 0xFF ; // digital enable
GPIO_PORTB_AFSEL_R &= ~0xFF; // regular port function

	// GPIO Configuration for Port E pins 3, 4 and 5
GPIO_PORTE_DIR_R |= 0x38 ;       // Port E pins as output
GPIO_PORTE_DEN_R |= 0x38 ;       // digital enable
GPIO_PORTE_AFSEL_R &= ~0x38;     // regular port function
	
	// GPIO_Init();    
	LCD_Init();
	LCD_Clear();
}


/* This function writes user command to the LCD module . */
void LCD_Send_Command (unsigned char command )
{
LCD_DATA_BUS = command ;
LCD_CONTROL_BUS = 0;

	// Generate a pulse on the LCD Enable pin
Delay (1) ;
LCD_CONTROL_BUS |= LCD_E_PIN ;
Delay (1) ;
LCD_CONTROL_BUS &= ~( LCD_E_PIN );
Delay (4) ;
}

/* This function writes user data to the LCD module . */
void LCD_Send_Data (unsigned char data )
{
LCD_DATA_BUS = data ;
LCD_CONTROL_BUS = LCD_RS_PIN ;

	// Generate a pulse on the LCD Enable pin
Delay (1) ;
LCD_CONTROL_BUS |= LCD_E_PIN ;
Delay (1) ;
LCD_CONTROL_BUS &= ~( LCD_E_PIN );
Delay (4) ;
}


/* This function initializes the LCD module for 8- bit data
interface , turns ON the display and cursor . */
void LCD_Init ( void )
{
LCD_CONTROL_BUS = 0;
Delay (1500) ; // Wait for approx . 15 ms

	// Configure LCD for required functionality
LCD_Send_Command (0x38); // Function Set : 8 bit , 2 line
LCD_Send_Command (0x10); // Set cursor
LCD_Send_Command (0x0E); // Display ON , cursor ON
LCD_Send_Command (0x06); // Entry mode
}

/* This function clears LCD module and brings cursor to home
position on the display . */
void LCD_Clear ( void )
{
LCD_Send_Command (0x01); // Clear display
Delay (170) ; // Delay for approx . 1.6 ms
LCD_Send_Command (0x02); // Move cursor to home
Delay (170) ; // Delay for approx . 1.6 ms
}

/* This function writes character string to LCD display . */
void LCD_Send_String ( char * ptr ){
while (* ptr ){
LCD_Send_Data (* ptr );
ptr ++;
}
}


void LCD_Send_Float(float f)
{
unsigned int v,p;
long int num;
num=f*10000;
p=num%10000;

v=num/10000;

LCD_Send_Integer(v);
LCD_Send_String(".");
LCD_Send_Integer(p);
}

void LCD_Send_Integer(int number){// This function prints integer on LCD
char buffer[10];
Delay(10);
sprintf(buffer,"%d",number); // function sprintf converts integer to string
LCD_Send_String(buffer);
}

/* This function moves the cursor to (x,y) coordinates on
the LCD display . */


/* This function generates the delay . */
void Delay ( volatile unsigned int delay )
{
volatile unsigned int i, j;
for (i = 0; i < delay ; i++)
// introduces a delay of about 10 us at 16 MHz
{
for (j = 0; j < 12; j ++) ;
}
}
void Welcome_Screen(void)
{
	LCD_Send_String("Welcome To");
	LCD_Goto_XY(1,2);
	LCD_Send_String("LCR Meter");
	Delay(100000);
	LCD_Clear();
	
	LCD_Send_String("Group");
	LCD_Goto_XY(1,2);
	LCD_Send_String("Members");
	Delay(100000);
	LCD_Clear();
	
	LCD_Send_String("2016-EE-114");
	LCD_Goto_XY(1,2);
	LCD_Send_String("2016-EE-111");
	Delay(100900);
	LCD_Clear();
	
	LCD_Send_String("2016-EE-108");
	LCD_Goto_XY(1,2);
	LCD_Send_String("2016-EE-107");
	Delay(100900);
	LCD_Clear();
	
	LCD_Send_String("Supervised By");
	LCD_Goto_XY(1,2);
	LCD_Send_String("Ali Shafique");
	Delay(100900);
	LCD_Clear();
	
}