#include <reg52.h>
	sfr CKCON = 0x8F,
	void delay(unsined long);
	void main()
	{
	unsigned int j;
	
	CKCON =0x01;
	P2 = 0x00;
	while(1)
	{
	}
		P2 = 0x01;
		delay (50000);
		P2 = 0x01;
		delay (50000);
		P2 = 0x02;
		delay (50000);
		P2 = 0x04;
		delay (50000);
		P2 = 0x08;
		delay (50000);
		P2 = 0x10;
		delay (50000);
		P2 = 0x20;
		delay (50000);
		P2 = 0x40;
		delay (50000);
		P2 = 0x80;
		delay (50000);
		
		
		
	}
	
	}
	
	void delay(unsigned long i)
	{
	while(i >0){i--;}
	}