//**** ENG_ ABDALLA HYGAZY ****//
          //***    DATA _ 2016\8\23  ***//
          //*** CONTROL "STP" MOTOR ***//

     int x=0;
     unsigned int sped=100,GOO=1,OF_MOTOR=0;
 //*********************************************//
     void SPEED()
   {
     for( x=0;x<sped;x++) {delay_ms(10);}
   }
 //********************************************//
 
   void InitTimer0(){
  OPTION_REG = 0x88;
  TMR0       = 56;
  INTCON     = 0xA0;
 }
 //**********************************************//
     void Interrupt(){
     if (TMR0IF_bit){
     TMR0IF_bit = 0;
     TMR0      = 56;
    //Enter your code here
      if(  PORTD.F0==1 ){ sped--; delay_ms(50); }
      if(  PORTD.F1==1 ){ sped++; delay_ms(50); }
      
      if(  PORTD.F3==1 )
      {
        delay_ms(350);  GOO ++;
      }
      
      if(  PORTD.F2==1 )
    { delay_ms(550); OF_MOTOR = ~ OF_MOTOR; PORTB =0;    }
   //.......................................................//
   if(OF_MOTOR ==1){  PORTB= 0;  }
  }
}

//**********************************************************//
         void main() {
      
       InitTimer0();
       TRISB=0; PORTB=0;
       TRISD=15; PORTD=0;

       while(1){
     
       if(  sped<0      ){ sped=0;    }
       if(  sped>2000   ){ sped=2000; }
     //.................................//
      if(  GOO>2 ) { GOO =1; }
    //..................................//
     
      if( GOO==1 && OF_MOTOR ==0 )
     {
       PORTB= 1; SPEED();
       PORTB= 2; SPEED();
       PORTB= 4; SPEED();
       PORTB= 8; SPEED();
     }
   //..............................//
   
     if( GOO==2 && OF_MOTOR ==0 )
     {
       PORTB= 8; SPEED();
       PORTB= 4; SPEED();
       PORTB= 2; SPEED();
       PORTB= 1; SPEED();
     }
 }
}
//******************   END   ************************//