●Counting from 9 to 0 on 7-Segment Display

Here is the program written by using CCS C.

#include <16f628.h>

#fuses NOPROTECT, NOWDT, NOLVP, NOMCLR, INTRC_IO //Adding internal oscillator with INTRC_IO and MCLR makes possible to reset but with NOMCLR there is no need to connect anything that pin

#use delay(clock=4M) //To define the delay time correctly

void main(){

char series[]={63,6,91,79,102,109,125,7,127,111}; //Defining the decimal values of total logic values on 7-segment display

char x=9; //To start the loop from 9nd value

while(1){

do{

output_b(series[x]); //To show the desired value on 7-segment display

delay_ms(250); //Delay for observation

x--;

}while((x+1)); //To end the loop

x=9;

}

}