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Keypad 的代码
keypad.lst
C51 COMPILER V8.02 KEYPAD 09/12/2007 22:06:42 PAGE 1
C51 COMPILER V8.02, COMPILATION OF MODULE KEYPAD
OBJECT MODULE PLACED IN
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 V6.23a KEYPAD 05/12/2005 21:29:45 PAGE 1
C51 COMPILER V6.23a, COMPILATION OF MODULE KEYPAD
OBJECT MODULE PLACED IN
keypad.h
/*------------------------------------------------------------------*-
Keypad.h (v1.00)
------------------------------------------------------------------
- see Keypad.C for details.
keypad.lst
C51 COMPILER V6.21 KEYPAD 01/23/2002 18:10:45 PAGE 1
C51 COMPILER V6.21, COMPILATION OF MODULE KEYPAD
OBJECT MODULE PLACED IN
keypad.c
/*------------------------------------------------------------------*-
Keypad.C (v1.00)
------------------------------------------------------------------
Simple library, for a switch
keypad.c
#include "reg58.h"
#include "intrins.h"
#define _KEYPAD_C_
#include "keypad.h"
#include "lcd.h"
#include "define.h"
#include "rxd.h"
#include "373.h"
#include "timer.h"
#include "system.h"