基于51單片機的電子密碼鎖設計

ID:585526 · 發(fā)表于 2019-7-17 11:45

主程序：
#include<reg52.h>
#include<intrins.h>
#include"LCD1602.h"
#include"key.h"
#include"delay.h"
#include"eeprom.h"
sbit P3_6=P3^6;
sbit P3_7=P3^7;
void int0(void);
unsigned char password[6]/*={0x01,0x01,0x01,0x01,0x01,0x01}*/;
unsigned char password1[6];
unsigned char code aa[]="Password ";
unsigned char code gg[]="New";
unsigned char code bb[]="ERROR ";
unsigned char code cc[]="OK    ";
unsigned char code dd[]="       ";
unsigned char code ee[]="Next ";
unsigned char code ff[]="success ";
unsigned char keydata;
void main()
{
unsigned char i,j,k,l,m,n,o,a1;
unsigned int aaaa=65536;
init();//LCD初始化
int0();
P3_6=0;
P3_7=0;
P1=0x0f;
LCD_Write_String(0,0,aa);
LCD_Write_String(1,1,dd);
write_com(0xc0+1);
while(1)
{
start: LCD_Write_String(0,0,aa);
  LCD_Write_String(1,1,dd);
  write_com(0xc0+1);
  while(1)
  {
if((0<keydata)&&(4>keydata)||(4<keydata)&&(8>keydata)||(8<keydata)&&(12>keydata)||keydata==14)
//在0-9之間的數(shù)字通過
{
password[i]=keydata;//鍵盤值進行保存
keydata=0; //把鍵盤值置其它值，不被其它利用，以一樣
i++;
write_data('*'); //在LCD上顯示*這字符代表輸入了一個密碼
if(i==6) //這里限制了六位密碼
{
   i=0;
   goto panduan;
}
}
if(keydata==13) //重新輸入改密
   {
      m=0;
   n=0;
   LCD_Write_String(1,1,dd);
   write_com(0xc0+1);
   }
if(keydata==33) //確定進入密碼比較
{
keydata=0;
panduan:  i=0;
for(j=0;j<6;j++)
{
   l+=password[j];
   k+=Random_Read(j);
}
if(l!=k)  //密碼不同進行處理
{
   l=0;
   k=0;
   LCD_Write_String(0,0,bb);
   DelayMs(1000);
   a1+=1;
   if(a1==2)
   {
   while(1)
   {
   // aaaa--;
   P3_7=1;
   P3_6=0;
   // if(aaaa==0)
   {
   //  P3_7=0;
      a1=0;
      //aaaa=65536;
      //goto start;
   }
   }
   }//兩次錯誤發(fā)出報警
   goto start;    //第二次輸入密碼
}
if(l==k)  //密碼對了，進入運行狀態(tài)，這里綠燈代表該狀態(tài)
{
   l=0;
   k=0;
   a1=0;
   P3_6=1;
   P3_7=0;
   LCD_Write_String(0,0,cc);
   LCD_Write_String(1,1,dd);
   if(o==1)
   {
   o=0;
      LCD_Write_String(0,0,gg);
      LCD_Write_String(4,0,aa);
      LCD_Write_String(1,1,dd);
      write_com(0xc0+1);
      goto text2;
   }
   goto yingxing; //跳到下面函數(shù)中，yingxing里
}
}
  }
yingxing:while(1)
  {
if(keydata==4) //鎖定功能
{
P3_6=0;
goto start;
}
if(keydata==15) //修改密碼
{
o++;
if(o==1)
   goto start;
text2: keydata=0;
while(1)
{
   if((0<keydata)&&(4>keydata)||(4<keydata)&&(8>keydata)||(8<keydata)&&(12>keydata)||keydata==14)
   //上面表達式0-9之間的數(shù)字通過
   {
   password[m]=keydata;  //讀取鍵盤值
   keydata=0;
   m++;
   write_data('*');
   if(m==6) //到密碼輸入到六位的時候進行判斷是否再輸入，或者判斷前后兩次密碼是否一致
   {
   m=0;
   n++;
   if(n==2)
      goto panduan1; //輸入第二次的時候進行前后兩次密碼進判斷
   for(i=0;i<6;i++)    //儲存前一次密碼
   {
      password1[i]=password[i];
   }
   LCD_Write_String(1,1,dd);
   LCD_Write_String(0,0,ee);
   DelayMs(1000);
   LCD_Write_String(0,0,aa);
   write_com(0xc0+1);
   }
   }
   if(keydata==13) //重新輸入改密
   {
text:    m=0;
   n=0;
   LCD_Write_String(1,1,dd);
   write_com(0xc0+1);
   }
   if(keydata==16)  //退出不改密碼
   {
out:    m=0;
   n=0;
   o=0;
   LCD_Write_String(0,0,cc);
   LCD_Write_String(1,1,dd);
   goto yingxing;
   }
   if(keydata==33)
   {
   keydata=0;
panduan1: for(j=0;j<6;j++)//第一次與第二次密碼比較
   {
   l+=password[j];
   k+=password1[j];
   }
   if(l!=k) //第一次與第二次密碼輸入錯誤
   {
   l=0;
   k=0;
   LCD_Write_String(0,0,bb);
   DelayMs(1000);
   LCD_Write_String(0,0,aa);
   goto text;
   }
   else
   {
   for(i=0;i<6;i++)
   {
      Write_IIC(i,password[i]);
   }
   LCD_Write_String(0,0,ff);
   DelayMs(1000);
   goto out;
   }
   }
}
}
  }
}
}
void int0(void)
{
EA=1;
EX0=1;
IT0=1;
}
void wb0(void) interrupt 0
{
keydata=key_scan();
}

ID:654666 · 發(fā)表于 2019-12-2 21:33

LCD_Write_String(0,0,aa);樓主為什么這個是錯誤的？謝謝告訴

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