基于单片机电子密码锁系统控制设计-学习教程笔记

仿真电路

 

//包含头文件
#include <REG51.h>
#include<intrins.h>
//宏定义
#define LCM_Data  P0		  //将P0口定义为LCM_Data
#define uchar unsigned char 
#define uint  unsigned int
//1602的控制脚
sbit lcd1602_rs=P2^5;
sbit lcd1602_rw=P2^6;
sbit lcd1602_en=P2^7;

sbit Scl=P3^4;			//24C02串行时钟
sbit Sda=P3^5;			//24C02串行数据

sbit ALAM = P2^1;		//报警	
sbit KEY = P3^6;		//开锁

bit  pass=0;			//密码正确标志
bit  ReInputEn=0;		//重置输入允许标志	
bit  s3_keydown=0;		//3秒按键标志位
bit  key_disable=0;		//锁定键盘标志

unsigned char countt0,second;	//t0中断计数器,秒计数器

void Delay5Ms(void);		//声明延时函数

unsigned char code a[]={0xFE,0xFD,0xFB,0xF7}; 				//控盘扫描控制表
//液晶显示数据数组
unsigned char code start_line[]	= {"password:       "};
unsigned char code name[] 	 	= {"===Coded Lock==="};	//显示名称
unsigned char code Correct[] 	= {"     correct    "};		//输入正确
unsigned char code Error[]   	= {"      error     "};  	//输入错误
unsigned char code codepass[]	= {"      pass      "}; 
unsigned char code LockOpen[]	= {"      open      "};		//OPEN
unsigned char code SetNew[] 	= {"SetNewWordEnable"};
unsigned char code Input[]   	= {"input:          "};		//INPUT
unsigned char code ResetOK[] 	= {"ResetPasswordOK "};
unsigned char code initword[]	= {"Init password..."};
unsigned char code Er_try[]		= {"error,try again!"};