led array.c

Lap Proteus use simuretion

#include <REGX51.H>
sbit latch =P1^4;
code unsigned char led[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};

void delay(unsigned char tick)
{
	unsigned char i,j;
	for(i=0;i,tick;i++)
	for(j=0;j<200;j++);
}
void main(void)
{
	latch = 1;
	while(1)
	{
	P0 = led[0];
	delay(200);
	P0 = led[1];
	delay(200);
	P0 = led[2];
	delay(200);
	P0 = led[3];
	delay(200);
	P0 = led[4];
	delay(200);
	P0 = led[5];
	delay(200);
	P0 = led[6];
	delay(200);
	P0 = led[7];
	delay(200);
	}
}