//# include "PIC. H" contains MCU internal resources predefined
__CONFIG (HS & amp; WDTDIS & amp; LVPDIS);
The int Data;
Void delay10ms ();//delay function declaration
Void DisplayData (unsigned int Data);//display function declaration
Void init ();//IO port initialization function declaration
Void scan ();//keypad scanning program statement
B11000000 const char TableNumber []={0, 0 b11111001, 0 b10100100,
B10010010 b10110000 0, 0 b10011001, 0, 0 b10000010,
B10010000 b11111000 0, 0 b10000000, 0};
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Name: the main ()
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
Int main (void)
{
Data=https://bbs.csdn.net/topics/0x00;//start time shows
init();//initialization function called
While (1)
{
Scan ();//call the scan button program
Void DisplayData (unsigned int Data);//display function declaration
}
}


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Name: delay10ms ()
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
Void delay10ms (int m)
{
Int I=0, j=0;
for(i=0; IFor (j=0; j<67; J++)
{; }
}


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Name: DisplayData ()
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

Void DisplayData (unsigned int Data)
{


Char I=0, j=0, k=0, x=0, Number [5]=,0,0,0,0 {0};//the Number [0] did not use the

The Number [1]=Data/1000% 10;//one thousand
The Number [2]=Data/100% 10;//one hundred
The Number [3]=Data/10% 10;//10
The Number [4]=Data/1% 10;//bits
For (x=0; x<15. I++)
{
PORTC=k=0 x01;//don't forget to each cycle it an initial value k
for(j=1; j<=4; J++)//we need to refresh the four digital tube position
{
PORTC=k;//set to light the location of the
PORTB=TableNumber [Number [j]];//set the font
Delay10ms (2);//delay shows glyph, causing the phenomenon of persistence of vision
K=k<1;//left to prepare for display the next position
}
}
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Name: void scan ()
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

Void scan ()
{


While (1)
{
If (RD0==0)//detect RD0 change
{
Delay10ms (40);//in the ISIS button to raise process longer,
//if the actual hardware, delay can be 10 milliseconds,
If (RD0==0)//that means SW really press
{
Data++;//variable Data from the gal.
}
}
}

}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Name: void init ()
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
Void init ()
{
TRISB=0 x00;
TRISC=0 x00;
TRISD0=1;
}

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