//PROGRAM TO DISPLAY WELCOME ON LINE2,MIDDLE.

//d0-d7 on port f and e and rs on portk

volatile uint8_t *outf,*outk;
volatile uint8_t arr[]={0x20,0x20,0x20,0x20,0x57,0x45,0x4C,0x43,0x4F,0x4D,0x45,0x20,0x20,0x20,0x20,0x20};
volatile long j,i,k;
void setup() {
  // put your setup code here, to run once:
volatile uint8_t *dirf,*dirk;
dirf=0x30,dirk=0x107;
*dirf=0xff;*dirk=0x03;
outf=0x31;outk=0x108;
initialize();
*outk=0x00;//rs low for command
*outf=0xc0;//setting cursor at line2 middle
pulse_enable_command();
*outk=0x02;//rs high for data
for(i=0;i<16;i++){
*outf=arr[i];
pulse_enable_data();
}
}

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


}

void initialize(){
  for(k=0;k<10000;k++);//15ms wait
  //function set 2lines and 8 columns
  *outk=0x00;// using lcd in command mode
  *outf=0x38;//putting data
  pulse_enable_command();
  //turning the display ON
  *outk=0x00;// using lcd in command mode
  *outf=0x0c;//putting data
  pulse_enable_command(); 
  //clearing display
  clear_display();
}

void pulse_enable_data(){
    *outk=0x03;//pulsing e
  for(k=0;k<100;k++);
  *outk=0x02; 
}

void pulse_enable_command(){
    *outk=0x01;//pulsing e
  for(k=0;k<100;k++);
  *outk=0x00; 
}

void clear_display(){
  *outk=0x00;// using lcd in command mode
  *outf=0x01;//putting data
  pulse_enable_command();
}