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#include <reg52.h>
#include "delay_ms.h"
#include  "矩阵键盘.h"
#include "i2c.h"
#include "1602.h"
#include "delay_ms.h"
#include "mima.h"
#define uchar		unsigned char
#define uint		unsigned int
#define A		0x0a                            /* 输入密码 */
#define B		0x0b                            /* 修改密码 */
#define D		0x0d                            /* 关锁 */
#define enter		0x0c                            /* 确认 */
#define backspace	0x0f                            /* 退格键 */
sbit		baojing		= P3 ^ 7;               /* 蜂鸣器接口 */
sbit		lock		= P3 ^ 3;               /* 锁信号 */
sbit		set		= P3 ^ 2;
sbit		men		= P2 ^ 0;
sbit		led		= P2 ^ 1;
uchar idata	mima_5[6]	= { 1, 2, 3, 4, 5, 6 }; /* 初始密码 */
uchar		flag_change;
uchar		aa;                                     /* 存放密码错误的次数，够三次报警 */
uchar		bb;
uchar		flag_t0;
void baoj1()                                            /* 报警函数 */
{
	int i;
	for ( i = 0; i < 5; i++ )
	{
		baojing = 1;