code
#include <xc.h>
//***Define the signal pins of all four displays***//
#define s1 RC0
#define s2 RC1
#define s3 RC2
#define s4 RC3
//***End of definition**////
void main()
{
unsigned int a,b,c,d,e,f,g,h; //just variables
int i = 0; //the 4-digit value that is to be displayed
int flag =0; //for creating delay
unsigned int seg[]={0X3F, //Hex value to display the number 0
0X06, //Hex value to display the number 1
0X5B, //Hex value to display the number 2
0X4F, //Hex value to display the number 3
0X66, //Hex value to display the number 4
0X6D, //Hex value to display the number 5
0X7C, //Hex value to display the number 6
0X07, //Hex value to display the number 7
0X7F, //Hex value to display the number 8
0X6F //Hex value to display the number 9
}; //End of Array for displaying numbers from 0 to 9
//*****I/O Configuration****//
TRISC=0X00;
PORTC=0X00;
TRISD=0x00;
PORTD=0X00;
//***End of I/O configuration**///
#define _XTAL_FREQ 20000000
while(1)
{
//***Splitting "i" into four digits***//
a=i%10;//4th digit is saved here
b=i/10;
c=b%10;//3rd digit is saved here
d=b/10;
e=d%10; //2nd digit is saved here
f=d/10;
g=f%10; //1st digit is saved here
h=f/10;
//***End of splitting***//
PORTD=seg[g];s1=1; //Turn ON display 1 and print 4th digit
__delay_ms(5);s1=0; //Turn OFF display 1 after 5ms delay
PORTD=seg[e];s2=1; //Turn ON display 2 and print 3rd digit
__delay_ms(5);s2=0; //Turn OFF display 2 after 5ms delay
PORTD=seg[c];s3=1; //Turn ON display 3 and print 2nd digit
__delay_ms(5);s3=0; //Turn OFF display 3 after 5ms delay
PORTD=seg[a];s4=1; //Turn ON display 4 and print 1st digit
__delay_ms(5);s4=0; //Turn OFF display 4 after 5ms delay
if(flag>=100) //wait till flag reaches 100
{
i++;flag=0; //only if flag is hundred "i" will be incremented
}
flag++; //increment flag for each flash
}
}
