#include<reg51.h>
unsigned char tab[6] = {0x00,0x00,0xff,0x81,0x42,0x3c,0x00,0x00}
void main(){
	unsigned char i,k;
	while(1){
		P0 = 0xfe;
		P1 = tab[1];
		for (k=0;k<6,k++){
			P1 = tab[k];
			for (i=0,i<50,i++); 
			P0 = P0<<1|0x01;
		}
	}
}