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標(biāo)題: 這是我做的單片機(jī)設(shè)計(jì)代碼,實(shí)現(xiàn)密碼鎖功能 [打印本頁(yè)]

作者: 羅村 時(shí)間: 2018-1-22 01:09
標(biāo)題: 這是我做的單片機(jī)設(shè)計(jì)代碼,實(shí)現(xiàn)密碼鎖功能
#include <REG51.h>
#include<intrins.h>
//宏定義
#define LCM_Data  P0                //將P0口定義為L(zhǎng)CM_Data
#define uchar unsigned char
#define uint  unsigned int
#define w 6                               //定義密碼位數(shù)
//1602的控制腳
sbit lcd1602_rs=P2^7;
sbit lcd1602_rw=P2^6;
sbit lcd1602_en=P2^5;

sbit Scl=P3^4;                      //24C02串行時(shí)鐘
sbit Sda=P3^5;                      //24C02串行數(shù)據(jù)

sbit ALAM = P2^1;             //報(bào)警
sbit KEY = P3^6;             //開(kāi)鎖

sbit open_led=P2^2;             //開(kāi)鎖指示燈（選配）

bit  operation=0;             //操作標(biāo)志位
bit  pass=0;                      //密碼正確標(biāo)志
bit  ReInputEn=0;             //重置輸入允許標(biāo)志
bit  s3_keydown=0;             //3秒按鍵標(biāo)志位
bit  key_disable=0;             //鎖定鍵盤(pán)標(biāo)志

unsigned char countt0,second;       //t0中斷計(jì)數(shù)器,秒計(jì)數(shù)器

void Delay5Ms(void);             //聲明延時(shí)函數(shù)

unsigned char code a[]={0xFE,0xFD,0xFB,0xF7};                               //控盤(pán)掃描控制表
//液晶顯示數(shù)據(jù)數(shù)組
unsigned char code start_line[]       = {"password:    "};
unsigned char code name[]                = { "===Coded Lock==="};       //顯示名稱(chēng)
unsigned char code Correct[]       = {"    correct "};             //輸入正確
unsigned char code Error[]          = {"    error    "};       //輸入錯(cuò)誤
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!"};
unsigned char code again[]             = {"input again    "};

unsigned char InputData[6];                                                                      //輸入密碼暫存區(qū)
unsigned char CurrentPassword[6]={1,3,1,4,2,0};                      //管理員密碼（只可在程序中修改）
unsigned char TempPassword[6];
unsigned char N=0;                               //密碼輸入位數(shù)記數(shù)
unsigned char ErrorCont;                      //錯(cuò)誤次數(shù)計(jì)數(shù)
unsigned char CorrectCont;                      //正確輸入計(jì)數(shù)
unsigned char ReInputCont;                      //重新輸入計(jì)數(shù)
unsigned char code initpassword[6]={0,0,0,0,0,0};                      //輸入管理員密碼后將密碼初始為000000

//=====================5ms延時(shí)==============================
void Delay5Ms(void)
{
      unsigned int TempCyc = 5552;
      while(TempCyc--);
}

//===================400ms延時(shí)==============================
void Delay400Ms(void)
{
unsigned char TempCycA = 5;
while(TempCycA--)
{
  TempCycB=7269;
  while(TempCycB--);
}
}

//=============================================================================================
//================================24C02========================================================
//=============================================================================================

void mDelay(uint t) //延時(shí)
{
      uchar i;
         while(t--)
         {
               for(i=0;i<125;i++)
               {;}
         }
}

void Nop(void)                //空操作
{
      _nop_();                //僅作延時(shí)用一條語(yǔ)句大約1us
      _nop_();
      _nop_();
}

/*****24c02程序參照24c02時(shí)序圖*****/
/*起始條件*/

void Start(void)
{
      Scl=1;
      Nop();
      Sda=0;
      Nop();
}

/*停止條件*/
void Stop(void)
{
      Sda=0;
      Scl=1;
      Nop();
      Sda=1;
      Nop();
}

/*應(yīng)答位*/
void Ack(void)
{
      Sda=0;
      Nop();
      Scl=1;
      Nop();
      Scl=0;
}

/*反向應(yīng)答位*/
void NoAck(void)
{
      Sda=1;
      Nop();
      Scl=1;
      Nop();
      Scl=0;
}

/*發(fā)送數(shù)據(jù)子程序，Data為要求發(fā)送的數(shù)據(jù)*/
void Send(uchar Data)
{
         uchar BitCounter=8;
         uchar temp;
         do
         {
               temp=Data;                                        //將待發(fā)送數(shù)據(jù)暫存temp
               Scl=0;
               Nop();
               if((temp&0x80)==0x80)                //將讀到的數(shù)據(jù)&0x80
               Sda=1;
               else
               Sda=0;
               Scl=1;
               temp=Data<<1;                                  //數(shù)據(jù)左移
               Data=temp;                                        //數(shù)據(jù)左移后重新賦值Data
               BitCounter--;                                  //該變量減到0時(shí)，數(shù)據(jù)也就傳送完成了
         }
         while(BitCounter);                                  //判斷是否傳送完成
         Scl=0;
}

/*讀一字節(jié)的數(shù)據(jù)，并返回該字節(jié)值*/
uchar Read(void)
{
uchar temp=0;
      uchar temp1=0;
      uchar BitCounter=8;
      Sda=1;
      do
      {
            Scl=0;
            Nop();
            Scl=1;
            Nop();
            if(Sda)                                  //數(shù)據(jù)位是否為1
                     temp=temp|0x01;          //為1 temp的最低位為1（|0x01，就是將最低位變?yōu)?）
            else                                  //如果為0
                     temp=temp&0xfe;          //temp最低位為0（&0xfe（11111110）最低位就是0）
            if(BitCounter-1)          //BitCounter減1后是否為真
            {
                     temp1=temp<<1;          //temp左移
                     temp=temp1;
            }
            BitCounter--;                //BitCounter減到0時(shí)，數(shù)據(jù)就接收完了
      }
      while(BitCounter);                //判斷是否接收完成
      return(temp);
}

作者: 羅村 時(shí)間: 2018-1-22 01:09
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