//  ENG/Adalla Hygazy  //
  // 7SEGMENT  Counter  //
  //     PIC16F877A     //
  //    KH 8M         //
  // DATA 2020/8/12   //
  
 unsigned short mask(unsigned short num);
 unsigned int  SEMENT,Time,counter,X1,X2;
 
//----------------------------------------------------------------------------------//
   //Timer0
   //Prescaler 1:8; TMR0 Preload = 6; Actual Interrupt Time : 1 ms
  //Place/Copy this part in declaration section
   void InitTimer0(){
   OPTION_REG  = 0x82;
   TMR0        = 6;
   INTCON      = 0xA0;
}

    void Interrupt(){
   if (TMR0IF_bit){
    TMR0IF_bit   = 0;
    TMR0         = 6;
    //Enter your code here
    
    if( PORTD.F5==0 ){  PORTB=mask(SEMENT);               }
    if( PORTD.F5==1 ){ PORTB=mask(counter);  PORTC.F6=1; }
     else PORTC.F6=0;
     
  }
}
  //**********************************************************************************//
        void main(){
        InitTimer0();
        TRISB=0;   PORTB=0;
        TRISC=0;   PORTC=0;
        TRISD=240; PORTD=0;

        while(1){

    //==============================================================================//
        if( PORTD.F4==1 && counter>0 && PORTD.F5==0 ){ delay_ms(1000); SEMENT++;}
        
           if( counter >0 && SEMENT == counter)
        {
          PORTC.F0=1;delay_ms(3000); PORTC.F0=0; SEMENT=0;
           while(PORTD.F4==1){         }
        }


        if(PORTD.F5==1)
     {
        if(PORTD.F7==1){counter++; delay_ms(250); }
        if(PORTD.F6==1){counter--; delay_ms(250); }
        if( counter>9 ){  counter=0;  }
        if( counter<0 ){  counter=9;  }
     }
  //===================================================================================//
}
}
unsigned short mask(unsigned short num){
switch (num){

case 0 : return 0xC0;
case 1 : return 0xF9;
case 2 : return 0xA4;
case 3 : return 0xB0;
case 4 : return 0x99;
case 5 : return 0x92;
case 6 : return 0x82;
case 7 : return 0xF8;
case 8 : return 0x80;
case 9 : return 0x90;

}
}

   
  //  ENG/Adalla Hygazy  //
  // 7SEGMENT  Counter  //
  //     PIC16F87A     //
  //    KH 8M         //
  // DATA 2020/8/12   //
  
 unsigned short mask(unsigned short num);
 unsigned int  SEMENT,Time,counter,X1,X2;
 
//----------------------------------------------------------------------------------//
   //Timer0
   //Prescaler 1:8; TMR0 Preload = 6; Actual Interrupt Time : 1 ms
  //Place/Copy this part in declaration section
   void InitTimer0(){
   OPTION_REG  = 0x82;
   TMR0        = 6;
   INTCON      = 0xA0;
}

    void Interrupt(){
   if (TMR0IF_bit){
    TMR0IF_bit   = 0;
    TMR0         = 6;
    //Enter your code here
    
    if( PORTD.F5==0 ){  PORTB=mask(SEMENT);               }
    if( PORTD.F5==1 ){ PORTB=mask(counter);  PORTC.F6=1; }
     else PORTC.F6=0;
     
  }
}
  //**********************************************************************************//
        void main(){
        InitTimer0();
        TRISB=0;   PORTB=0;
        TRISC=0;   PORTC=0;
        TRISD=240; PORTD=0;

        while(1){

    //==============================================================================//
        if( PORTD.F4==1 && counter>0 && PORTD.F5==0 ){ delay_ms(1000); SEMENT++;}
        
           if( counter >0 && SEMENT == counter)
        {
          PORTC.F0=1;delay_ms(3000); PORTC.F0=0; SEMENT=0;
           while(PORTD.F4==1){         }
        }


        if(PORTD.F5==1)
     {
        if(PORTD.F7==1){counter++; delay_ms(250); }
        if(PORTD.F6==1){counter--; delay_ms(250); }
        if( counter>9 ){  counter=0;  }
        if( counter<0 ){  counter=9;  }
     }
  //===================================================================================//
}
}
unsigned short mask(unsigned short num){
switch (num){

case 0 : return 0x3F;
case 1 : return 0x06;
case 2 : return 0x5B;
case 3 : return 0x4F;
case 4 : return 0x66;
case 5 : return 0x6D;
case 6 : return 0x7D;
case 7 : return 0x07;
case 8 : return 0x7F;
case 9 : return 0x6F;

}
}