void init(void);
void pass_data(int write_data);
void pass_signal(int write_signal);
void lcd_interface1();
void lcd_interface2();
void control_signal();
void write_data(char data);
void lcd_display(char* strng);
void delay_signal();


void setup() {
  // put your setup code here, to run once:
init();
lcd_interface1();
lcd_display(" WELCOME INDIAN  ");
lcd_interface2();
lcd_display("ELECTRONICS HUB ");
   }


void init(void)
{
volatile char *portf_dir = 0x30;
volatile char *portk_dir = 0x107;
*portf_dir = 0xff;
*portk_dir = 0x03;
}

void pass_data(int write_data)
{
  volatile *portf_data = 0x31;
  *portf_data = write_data;
}

void pass_signal(int write_signal)
{
  volatile *portk_signal = 0x108;
  *portk_signal = write_signal;
}

void lcd_interface1()
{
  write_data(0x38);
  control_signal(); 
  write_data(0x0c);
  control_signal();
  write_data(0x01);
  control_signal();
  write_data(0x80);
  control_signal();
  
}
void lcd_interface2()
{
  write_data(0xc0);
  control_signal();
}


void control_signal()
{
  pass_signal(0x00);
  delay_signal();
  pass_signal(0x02);
  delay_signal();
  pass_signal(0x00);
  delay_signal();
}

void write_data(char data)
{
  pass_data(data);
  pass_signal(0x01);
  delay_signal();
  pass_signal(0x03);
  delay_signal();
  pass_signal(0x01);
  delay_signal();

}

void lcd_display(char* strng)
{
  while(*strng != 0)
  {
    write_data(*strng);
    strng++;  
  }
}

void delay_signal()
{
  volatile long i;
  for(i=0;i<1000;i++);
}

void loop() {
  // put your main code here, to run repeatedly:

}