#include<reg51.h>

/********************************************* LCD control signals declaration
***************************************************/

sbit RS = P0^0; // <span id="IL_AD1" class="IL_AD">Register</span> Select line
//sbit RW = P0^1; // Read/write line
sbit Enable = P0^1; // Enable line
#define LCD_PORT P2 // define port

/********************************************* LCD function prototypes
************************************************/
void send_cmd(unsigned char);
void send_data(unsigned char*);
void send_char(unsigned char);
void LCD_init(void);
void delayms(unsigned int);
/********************************************* Main Funciton declaration
***********************************************/
void main()
{

LCD_PORT = 0x00; // Make the port as output port

LCD_init(); // LCD initialization

// while(1)
//{
send_cmd(0x80); // Force cursor to beginning of 1st line, if the number is 0x83 then force the cursor
to 53rd position
delayms(100); // Delay of 100millisec
send_char('S'); // Send data
send_char('J'); // Send data
send_char('E'); // Send data
send_char('C'); // Send data
send_cmd(0xC0); // Force cursor to beginning of 2nd line

delayms(100); // Delay of 100millisec
send_char('I'); // Send data
send_char('O'); // Send data
send_char('A'); // Send data

//}

}

/********************************************* LCD Initialization Function declaration
********************************/

void LCD_init()
{
send_cmd(0x38); // configuring LCD as 2 line 5x7 matrix
send_cmd(0x0E); // Display on, Cursor blinking
send_cmd(0x01); // Clear Display Screen
send_cmd(0x06); // Increment Cursor (Right side)
}

void send_char(unsigned char character)
{
LCD_PORT = character;
RS = 1; // Select Data Register
// RW = 0; // write operation
Enable = 1; // High to Low pulse provided on the enable pin with nearly 1ms(>450ns)
delayms(1); // 1 millisec delay
Enable = 0;
delayms(100); // 100 millisec delay

}

/*********************************************LCD Command Sending Function
declaration********************************/

void send_cmd(unsigned char Command)
{
LCD_PORT = Command;
RS = 0; // Select Command Register
// RW = 0; // write operation
Enable = 1; // High to Low pulse provided on the enable pin with nearly 1ms(>450ns)
delayms(1); // 1 millisec delay
Enable = 0;

}

/******************************************* delayms Function
declaration***********************************************/
void delayms(unsigned int val)
{
unsigned int i,j;

for(i=0;i<=val;i++)
{
for(j=0;j<=2;j++) ;
//_nop_(); // no operation produce 1us time delay
}

}