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#include <reg52.h>
#include <IIC.h>
#include <LCD1602.h>
#define U 6
void delay(unsigned int i)
{
while(i--);
}
int Time30s=30;
unsigned char code ASCII[15] = {'0','1','2','3','4','5','6','7','8','9','.','-',' '};
unsigned char code Led1[]={0x00,0x1F,0x04,0x04,0x1F,0x04,0x0D,0x17};//無
unsigned char code Led2[]={0x04,0x0F,0x19,0x06,0x1C,0x0F,0x09,0x0F};//名
unsigned char code Led3[]={0x04,0x04,0x04,0x15,0x15,0x04,0x14,0x0C};//小
unsigned char code Led4[]={0x04,0x04,0x00,0x1F,0x00,0x0A,0x0A,0x11};//六
char code c1[]="Input Password:";
char code c2[]="Input New Again:";
char code c3[][16]={" Correct ",
" (^_^) "};
char code c4[][16]={" Error ",
" (@_@) "};
char code c5[][16]={"Set New Password",
"YES or NO"};
char code c6[]="QQ: 1031594831 ";
char code c7[16]={" "};
char code c8[]="Wait 30s: 30s ";
char code c9[][16]={" Confirm exit ",
"YES or NO"};
char code c10[]="New Password: ";
char code c11[]="Set Success ";
char Word[U]; //初始密碼
bit ai=0; //判斷按鍵是否按下位
//**********定時器0初始化函數*********//
void TIME0_INIT()
{
TMOD=0x01;
TH0=0x3C;
TL0=0xB0;
ET0=1;
EA=1;
TR0=0;
}
/**************按鍵判斷函數*********************/
int keypross()
{
int A;
if(P1!=0xf0)
{
delay(1000);
if(P1!=0xf0)
{
ai=1; //按鍵按下
switch(P1)
{
case 0xe0:
A=1;break;
case 0xd0:
A=2;break;
case 0xb0:
A=3;break;
default:
ai=0;break;
}
P1=0x0f;
if(P1!=0x0f)
{
switch (P1)
{
case 0x0e:
A=A;break;
case 0x0d:
A=A+3;break;
case 0x0b:
A=A+6;break;
case 0x07:
A=A+9;break;
default:
break;
}
}
while(P1!=0x0f);//判斷按鍵是否松開
}
}
P1=0xf0;
return A;
}
/**************開機密碼判斷函數****************/
bit OpenKey()
{
int i,a;
bit b=0,c=0;
char w1[U];
ai=0;
while(1)
{
for(i=0;i<U+1;i++)
{
while(!ai)
{
P1=0xf0;
a=keypross();
if(i==U)
{
ai=0;
if(a==10||a==12)
{
break;
}
}
}
ai=0;
switch (a)
{
case 10:
b=1;break;
case 11:
a=0;break;
case 12:
c=1;break;
default:
break;
}
if(b||c) break;
w1[i]=ASCII[a];
DisplayOneChar(i+2,1,'*'); //密碼輸入時顯示‘ * ’符號
}
if(b)
{
for(i=0;i<U;i++)
{
if(w1[i]!=Word[i])
{
return 0; //密碼錯誤，退出
}
}
return 1; //密碼正確，退出
}
if(c)
{
a=0;
b=0;
return 0;
}
}
}
/*******************************************
******* 顯示函數 **************
*******************************************/
void LcdPross(char *p,char *q)
{
int i;
LCD1602_WRITERCOM(0x80);
for(i=0;i<16;i++)
{
LCD1602_WRITERDAT(*p++);
}
LCD1602_WRITERCOM(0xC0);
for(i=0;i<16;i++)
{
LCD1602_WRITERDAT(*q++);
}
}
bit LcdTime30s()
{
if(Time30s==-1)
{
TR0=0;
Time30s=30;
return 0 ;
}
else
{
TR0=1;
return 1;
}
}
//************倒計時30s函數***************//
bit SetPassword()
{
int i,j=0,a;
char w1[U],w2[U];
bit b=0,c=0;
ai=0;
for(j;j<2;j++)
{
if(j==0)
{
LcdPross(c10,c7);
}
else
{
LcdPross(c2,c7);
}
for(i=0;i<U+1;i++)
{
while(!ai)
{
a=keypross();
if(i==U)
{
ai=0;
if(a==10||a==12)
break;
}
}
ai=0;
switch (a)
{
case 10:
b=1;break;
case 11:
a=0;break;
case 12:
c=1;break;
default:
break;
}
if(b&&i<U)
{
b=0;
return 0;
}
if(b&&i==U)
{
b=0;
break;
}
if(c)
{
c=0;
return 0;
}
if(j==0)
{
w1[i]='0'+a;
DisplayOneChar(i+2,1,w1[i]);
}
else
{
w2[i]='0'+a;
DisplayOneChar(i+2,1,w2[i]);
}
}
}
for(i=0;i<U;i++)
{
if(w1[i]!=w2[i])
{
return 0;
}
}
for(i=0;i<U;i++)
{
Word[i]=w2[i];
}
return 1;
}
void LcdDisplay()
{
int i,a;
while(1)
{
i=4;
while(--i)
{
LcdPross(c1,c7);//顯示輸入密碼
if(OpenKey()) //判斷密碼是否正確
{
LcdPross(c3[0],c3[1]); //顯示正確
delay(50000);
break;
}
else
{
LcdPross(c4[0],c4[1]); //顯示錯誤
delay(50000);
}
}
if(i==0)
{
LcdPross(c8,c7);
while(LcdTime30s());
}
else
break;
}
while(1)
{
while(1)
{
LcdPross(c5[0],c5[1]); //顯示改密碼界面
ai=0;
while(!ai)
{
a=keypross();
if(a!=10&&a!=12)
{
ai=0;
}
}
if(a==12)
{
break;
}
if(a==10)
{
if(SetPassword())
{
LcdPross(c11,c7); //顯示改密成功
delay(50000);
for(i=0;i<U;i++)
{
AT24C02Writer(i,Word[i]);
delay(100);
}
delay(50000);
}
else
{
LcdPross(c4[0],c4[1]);
delay(50000);
}
}
}
LcdPross(c9[0],c9[1]); //顯示是否退出界面
ai=0;
while(!ai)
{
a=keypross();
if(a!=10&&a!=12)
{
ai=0;
}
}
if(a==10)
{
break;
}
}
}
void main()
{
int i;
TIME0_INIT();
LCD1602_INIT();
P1=0xf0;
/*
for(i=0;i<U;i++)
{
DisplayOneChar(i+2,1,AT24C02Read(i)); //開機之前顯示密碼
}
delay(50000);
delay(50000);
delay(50000);
*/
LCD1602_Custom(4,0,0,Led1); //無
LCD1602_Custom(6,0,1,Led2); //名
LCD1602_Custom(8,0,2,Led3); //小
LCD1602_Custom(10,0,3,Led4);//六
LCD1602_WRITERCOM(0xC0);
for(i=0;i<16;i++)
{
LCD1602_WRITERDAT(c6[i]); //QQ號
}
while(!ai)
{
keypross(); //按鍵按下跳轉密碼輸入頁面
}
ai=0;
for(i=0;i<U;i++)
{
Word[i]=AT24C02Read(i); //讀取密碼
}
while(1)
{
LcdDisplay();
}
}
void Time00() interrupt 1
{
static unsigned int i;
TH0=0x3C;
TL0=0xB0;
i++;
if(i==20)
{
i=0;
Time30s--;
DisplayOneChar(12, 0, ASCII[Time30s/10]);
DisplayOneChar(13, 0, ASCII[Time30s%10]);
}
}

復制代碼

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