switch_counter

switch_counter.c

#include <p89v51rx2.h>

sbit l1  = P3^0;
sbit l2  = P3^1;
sbit l3  = P3^6;
sbit l4  = P3^7;

sbit s1 = P3^2;
sbit s2 = P3^3;
sbit s3 = P3^4;
sbit s4 = P3^5;

void delay(unsigned int dela){
	unsigned int i,j;
	 
	for(i=0;i<=1000;i++)
	  for(j=0;j<=dela;j++);
}

void counter_4(){
	int count = 0;
	int tmp;
	int i;
	
	l1 = l2 = l3 = l4 = 1;
	
	for(i=0;i<16;i++){
			delay(150);			
			tmp = i;
			
			l4 = !(tmp % 2);
			tmp /= 2;
			
			l3 = !(tmp % 2);
			tmp /= 2;
			
			l2 = !(tmp % 2);
			tmp /= 2;
			
			l1 = !(tmp % 2);
			tmp /= 2;
		
		}
}

void counter_3(){
	int count = 0;
	int tmp;
	int i;
	
	l2 = l3 = l4 = 1;
	
	for(i=0;i<8;i++){
			delay(150);			
			tmp = i;
			
			l4 = !(tmp % 2);
			tmp /= 2;
			
			l3 = !(tmp % 2);
			tmp /= 2;
			
			l2 = !(tmp % 2);
			tmp /= 2;
		
		}
}

void counter_2(){
	int count = 0;
	int tmp;
	int i;
	
	l3 = l4 = 1;
	
	for(i=0;i<4;i++){
			delay(150);			
			tmp = i;
			
			l4 = !(tmp % 2);
			tmp /= 2;
			
			l3 = !(tmp % 2);
			tmp /= 2;
		
		}
}

void counter_1(){
	int count = 0;
	int tmp;
	int i;
	
	l4 = 1;
	
	for(i=0;i<2;i++){
			delay(150);			
			tmp = i;
			
			l4 = !(tmp % 2);
			tmp /= 2;
		
		}
}

void main() {
	while(1){
		l1 = l2 = l3 = l4 = 1;
		s1 = s2 = s3 = s4 = 1;

		if (!s1)
			counter_1();
		else if (!s2)
			counter_2();
		else if (!s3)
			counter_3();
		else if (!s4)
			counter_4();
		
		delay(150);
	}
}