8051 LED Blinking Program

Keil 컴파일러 이용

#include<reg51.h> /* Include header file */

void delay(k)  /* Delay for msec. (here Xtal freq. is 11.0592 MHz) */
{
	int i,j;
	for (i=0;i<k;i++)
		for (j=0;j<112;j++);
}

void main()
{
	while(1)
		{
			P1 = 0x00;  /* Make Port 1 (P1) Low for 200 msec.*/
			delay(200);
			P1 = 0xFF;  /* Make Port 1 (P1) High for 200 msec.*/
			delay(200);
		}
}