void init(void);
void write_data(char wr_data);
void write_signal(char wr_signal);
void interface_lcd(void);
void display(char *str);
void control_signal(void);
void control_data(char data);
void delay1(void);

void setup() {
  // put your setup code here, to run once:
volatile char j;
volatile long i;
  volatile int num[]={1,2,3,4,5,6,7,8,9};
init();
interface_lcd();
for(j=0;j<9;j++)
{
  display(num[j]);
  for(i=0;i<100000;i++);
}


}


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

void write_data(char wr_data)
{
  volatile char *data=(volatile char *)0x31;
  *data = wr_data;
}

void write_signal(char wr_signal)
{
  volatile char *signal=(volatile char *)0x108;
  *signal = wr_signal;
}

void interface_lcd(void)
{
  volatile int i;
   control_data(0x38);
   control_signal();
    control_data(0x0f);
   control_signal();
    control_data(0x01);
   control_signal();
   
  control_data( 0x06);
   control_signal();    

}

void display(char num)
{
 
  {
    if(num)				// Check num is non zero
	{
//	display(num/10);
	control_data(num+0x30);
	}

   // control_data(num);
  
  }
}

void control_signal(void)
{
  write_signal(0x00);
  delay1();
  write_signal(0x02);
  delay1();
  write_signal(0x00);
  delay1();
}

void control_data(char data)
{
  write_data(data);
  write_signal(0x01);
  delay1();
  write_signal(0x03);
  delay1();
  write_signal(0x01);
  delay1();
}
void delay1(void)
{
  volatile long i;
  for(i=0;i<100;i++);
}


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

}