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Keypad 的代码
keypad.c
# include "keypad.h"
#include "serial.h"
unsigned char KeypadScan(void)//得到4×4键盘的键值，没有按键时返回0xff
{
unsigned char keycode=0xff,temp,i,tmp=0x07;
KEYPAD_OUT=0x00;
temp=KEYPAD_IN&0x0f;
i
keypad.lst
C51 COMPILER V7.50 KEYPAD 08/22/2008 20:40:13 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE KEYPAD
OBJECT MODULE PLACED IN
keypad.h
#ifndef _keypad_H_
#define _keypad_H_
#include
#define KEYPAD_IN XBYTE[0XF050]//XBYTE[0xA000]
#define KEYPAD_OUT XBYTE[0XF051]//XBYTE[0x8000]
unsigned char KeypadScan(void);//得到4×4
keypad.java
import javax.swing.JPanel;
import javax.swing.*;
import java.awt.event.*;
public class Keypad extends JPanel {
Keypad(ActionListener f)
{
c = new JButton("C");
c.setVerticalTextP
keypad.c
/*
标题：小键盘的输入函数
版本：1.0
Target：89S51
函数描述： char gotkey(void)
从4ⅹ4小键盘输入数据，返回0 15
小键盘的连接方式：
1 P20 -----0----1----2----3
| | | |
2 P21 -----4----5--
keypad.lst
C51 COMPILER V7.50 KEYPAD 09/15/2005 09:45:20 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE KEYPAD
OBJECT MODULE PLACED IN