key.h

单片机的键盘控制程序和Led显示程序

#include <reg51.h>
#include "delay.h"


#ifndef __KEY_LCD_H__
#define __KEY_LCD_H__

#define KEY_PORT P1
#define K1_1 0x07
#define K1_2 0x08
#define K1_3 0x09
#define K1_4 0x0a
#define K2_1 0x04
#define K2_2 0x05
#define K2_3 0x06
#define K2_4 0x0b
#define K3_1 0x01
#define K3_2 0x02
#define K3_3 0x03
#define K3_4 0x0c
#define K4_1 0x0f
#define K4_2 0x00
#define K4_3 0x0e
#define K4_4 0x0d
#define KEY_MASK 0xF0

typedef unsigned char uchar ;

uchar Read_key() ;
#endif