void volatile inti();
void volatile out(char);
void volatile delay();
void  volatile blink();
void setup()
{
   void inti();
   void blink();
 }
  
   void volatile blink()//main program
   {
    
    while(1)
    {
     //out(0x01);

   delay();
     out(0x00);
   delay();
     out(0x00);
      }
   }
 
    void volatile out(char outdata)
  {
  char *ptrd_d= (char*)0x2b;
  *ptrd_d=outdata;
  }
  void  volatile inti()
  {
  char *ptrd_dd= (char*)0x2a;
  *ptrd_dd=0xff;
  }
   void  volatile delay()
   {
   volatile long int i;
   for(i=0;i<100000;i++);     
   }


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

}