蓝桥杯单片机第11届模拟_智能门锁

题目

代码

这套模拟题最难的应该就是密码的输入了，用了笨方法，用swtich一个一个的写出来的

timer.c

#include 

void Timer0Init(void)  //1毫秒@11.0592MHz
{
     
 AUXR |= 0x80;  //定时器时钟1T模式
 TMOD &= 0xF0;  //设置定时器模式
 TL0 = 0xCD;  //设置定时初值
 TH0 = 0xD4;  //设置定时初值
 TF0 = 0;  //清除TF0标志
 TR0 = 1;  //定时器0开始计时
 EA=ET0=1;
}

timer.h

#ifndef _TIMER_H_
#define _TIMER_H_

#include 

void Timer0Init(void);

#endif

smg.c

#include 
unsigned char code smgduan[16]={
     0XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,
 0XF8,0X80,0X90,0XBF,0XFF,0XC6,0X86,0XC8,0X8C}; 
 
//10:-  11:灭  12:C  13:E  14:N  15:P
unsigned char dspbuf[8];

void smg_display(void)
{
     
 static unsigned char i=0;
 P2=(P2&0X1F)|0XE0;
 P0=0XFF;
 P2&=0X1F;
 
 P2=(P2&0X1F)|0XC0;
 P0=1<<i;
 P2&=0X1F;
 
 P2=(P2&0X1F)|0XE0;
 P0=smgduan[dspbuf[i]];
 P2&=0X1F;
 
 if(++i==8)
  i=0;
}

keybord.c

#include 

unsigned char i,key_value,key_press,key_sum=0;

void key_read(void)
{
     
 P3=0XF0;
 P44=P42=1;
 if(P44==0||P42==0||P35==0||P34==0)
 {
     
  for(i=0;i<4;i++)
  {
     
    P3=0XFF;
    P44=P42=1;
    P3&=~(0X01<<i);
    
   if(P44==0) key_value=4*i;
   else if(P42==0) key_value=4*i+1;
   else if(P35==0) key_value=4*i+2;
   else if(P34==0) key_value=4*i+3;
   }
      
  if(++key_sum==1)
    key_press=1;
  }
 else
  key_sum=0;
}

keybord.h

#ifndef _KEYBORD_H_
#define _KEYBORD_H_

#include 

extern unsigned char key_value,key_press;

void key_read(void);

#endif

iic.c

#include 
#include "intrins.h"

#define somenop {_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();}    

//总线引脚定义
sbit SDA = P2^1;  /* 数据线 */
sbit SCL = P2^0;  /* 时钟线 */

//总线启动条件
void IIC_Start(void)
{
     
 SDA = 1;
 SCL = 1;
 somenop;
 SDA = 0;
 somenop;
 SCL = 0; 
}
//总线停止条件
void IIC_Stop(void)
{
     
 SDA = 0;
 SCL = 1;
 somenop;
 SDA = 1;
}
//等待应答
bit IIC_WaitAck(void)
{
     
 SDA = 1;
 somenop;
 SCL = 1;
 somenop;
 if(SDA)    
 {
        
  SCL = 0;
  IIC_Stop();
  return 0;
 }
 else  
 {
      
  SCL = 0;
  return 1;
 }
}
//通过I2C总线发送数据
void IIC_SendByte(unsigned char byt)
{
     
 unsigned char i;
 for(i=0;i<8;i++)
 {
        
  if(byt&0x80) 
  {
      
   SDA = 1;
  }
  else 
  {
     
   SDA = 0;
  }
  somenop;
  SCL = 1;
  byt <<= 1;
  somenop;
  SCL = 0;
 }
}
//从I2C总线上接收数据
unsigned char IIC_RecByte(void)
{
     
 unsigned char da;
 unsigned char i;
 
 for(i=0;i<8;i++)
 {
        
  SCL = 1;
  somenop;
  da <<= 1;
  if(SDA) 
  da |= 0x01;
  SCL = 0;
  somenop;
 }
 return da;
}
/**********eeprom**********/
void eeprom_write(unsigned char addr,unsigned char dat)
{
     
 IIC_Start();
 
 IIC_SendByte(0XA0);
 IIC_WaitAck();
 IIC_SendByte(addr);
 IIC_WaitAck(); 
 IIC_SendByte(dat);
 IIC_WaitAck(); 
 
 IIC_Stop();
}
unsigned char eeprom_read(unsigned char addr)
{
     
 unsigned char dat=0;
 IIC_Start();
 
 IIC_SendByte(0XA0);
 IIC_WaitAck();
 IIC_SendByte(addr);
 IIC_WaitAck(); 
 IIC_Start();
 IIC_SendByte(0XA1);
 IIC_WaitAck();
 dat=IIC_RecByte();
 
 IIC_Stop();
 return dat;
}

iic.h

#ifndef _IIC_H_
#define _IIC_H_

#include 

void eeprom_write(unsigned char addr,unsigned char dat);
unsigned char eeprom_read(unsigned char addr);

#endif

other.c

#include 

void bee_off(void)
{
     
  P2=(P2&0X1F)|0XA0;
  P0=0X00;
  P2&=0X1F;
}
void relay_on(void)
{
     
  P2=(P2&0X1F)|0XA0;
  P0=0X10;
  P2&=0X1F;
}
void relay_off(void)
{
     
  P2=(P2&0X1F)|0XA0;
  P0=0X00;
  P2&=0X1F; 
}
void led1_on(void)
{
     
  P2=(P2&0X1F)|0X80;
  P0=0XFE;
  P2&=0X1F; 
}
void led7_on(void)
{
     
  P2=(P2&0X1F)|0X80;
  P0=0XBF;
  P2&=0X1F; 
}
void led8_on(void)
{
     
  P2=(P2&0X1F)|0X80;
  P0=0X7F;
  P2&=0X1F; 
}
void led_off(void)
{
     
  P2=(P2&0X1F)|0X80;
  P0=0XFF;
  P2&=0X1F; 
}

other.h

#ifndef _OTHER_H_
#define _OTHER_H_

#include 

void bee_off(void);
void relay_on(void);
void relay_off(void);
void led1_on(void);
void led7_on(void);
void led8_on(void);
void led_off(void);

#endif

main.c

#include 
#include 
#include 
#include 
#include 
#include 

unsigned char flag_key;
unsigned char flag_smg=0;
unsigned char flag_relay;
unsigned char coded_set[6]={
     11,11,11,11,11,11};
unsigned char coded[6]={
     8,8,8,8,8,8};
unsigned char coded_change[6]={
     11,11,11,11,11,11};
unsigned char count=0;
unsigned char k=0,n=0,m=0,j=0;
unsigned char pass=0;
unsigned char flag_led=0;
unsigned char flag_20ms;
unsigned char count1=0;
unsigned char key_count=0;
unsigned char compare;
unsigned char flag_return=0;
unsigned char flag_5s=0;

void Delay5ms()  //@11.0592MHz
{
     
 unsigned char i, j;
 i = 54;
 j = 199;
 do
 {
     
  while (--j);
 } while (--i);
}
void main(void)
{
     
 if(eeprom_read(0x69)==0x99)
 {
     
   for(k=0;k<6;k++)
   {
     
     coded[k]=eeprom_read(k);
     Delay5ms();
   }  
 }
 else
 {
     
   for(k=0;k<6;k++)
   {
     
     eeprom_write(k,8);
     Delay5ms();
   }
  eeprom_write(0x69,0x99);
 }
 bee_off();
 relay_off();
 led_off();
 Timer0Init(); 
 while(1)
 {
     
  /**********keybord**********/
  if(flag_key)
  {
     
    flag_key=0;
    key_read();
  }
  if(key_press)
  {
     
    key_press=0;
   if(flag_smg==0)
   {
     
      for(j=0;j<6;j++)
     {
     
      coded_set[j]=11;
      count=0;
     }
   }
   /*****mode1*****/
   if(key_value==15&&flag_smg==0) 
   {
     
    flag_smg=1;
    compare=1;
   }
   
   if(flag_smg==1)
   {
     
    if(key_value>=0&&key_value<=9)
    {
     
     count++;
     switch(count)
     {
     
       case 1: 
        coded_set[5]=key_value;
        break;
       case 2:
        coded_set[4]=coded_set[5];
        coded_set[5]=key_value;
        break;
       case 3:
        coded_set[3]=coded_set[4];
        coded_set[4]=coded_set[5];
        coded_set[5]=key_value;
        break;
       case 4:
        coded_set[2]=coded_set[3];
        coded_set[3]=coded_set[4];
        coded_set[4]=coded_set[5];
        coded_set[5]=key_value;
        break;
       case 5:
        coded_set[1]=coded_set[2];
        coded_set[2]=coded_set[3];
        coded_set[3]=coded_set[4];
        coded_set[4]=coded_set[5];
        coded_set[5]=key_value;
        break;
       case 6:
        coded_set[0]=coded_set[1];
        coded_set[1]=coded_set[2];
        coded_set[2]=coded_set[3];
        coded_set[3]=coded_set[4];
        coded_set[4]=coded_set[5];
        coded_set[5]=key_value;
        break;
     }
     if(count>6) count=6;
    }
    
    if(key_value==13)
    {
     
      switch(count)
     {
     
       case 1: 
        coded_set[5]=11;
        count--;
        break;
      case 2:
        coded_set[5]=coded_set[4];
        coded_set[4]=11;
        count--;
        break;
      case 3:
        coded_set[5]=coded_set[4];
        coded_set[4]=coded_set[3];
        coded_set[3]=11;
        count--;
        break;
      case 4:
        coded_set[5]=coded_set[4];
        coded_set[4]=coded_set[3];
        coded_set[3]=coded_set[2];
        coded_set[2]=11;
        count--;
        break;
      case 5:
        coded_set[5]=coded_set[4];
        coded_set[4]=coded_set[3];
        coded_set[3]=coded_set[2];
        coded_set[2]=coded_set[1];
        coded_set[1]=11;
        count--;
        break;
      case 6:
        coded_set[5]=coded_set[4];
        coded_set[4]=coded_set[3];
        coded_set[3]=coded_set[2];
        coded_set[2]=coded_set[1];
        coded_set[1]=coded_set[0];
        coded_set[0]=11;
        count--;
        break;
     }
    }
   }
   /*****mode2*****/
   else if(flag_smg==2)
   {
     
     if(key_value==14)
       flag_smg=3;
    }
   /*****mode3*****/
   else if(flag_smg==3)
   {
     
    if(key_value>=0&&key_value<=9)
    {
     
      count1++;
      switch(count1)
      {
     
       case 1:coded_change[0]=key_value;break;
       case 2:coded_change[1]=key_value;break;
       case 3:coded_change[2]=key_value;break;
       case 4:coded_change[3]=key_value;break;
       case 5:coded_change[4]=key_value;break;
       case 6:coded_change[5]=key_value;break;
      }
    }
    if(key_value==13)
    {
     
      switch(count1)
      {
     
       case 1:coded_change[0]=11;count1--;break;
       case 2:coded_change[1]=11;count1--;break;
       case 3:coded_change[2]=11;count1--;break;
       case 4:coded_change[3]=11;count1--;break;
       case 5:coded_change[4]=11;count1--;break;
       case 6:coded_change[5]=11;count1--;break;
      }
    }
   if(count1>6) count1=6; 
   
   if(count1==6&&key_value==14) 
    {
     
     flag_smg=0;
     for(n=0;n<6;n++)
     {
     
       coded[n]=coded_change[n];
     }
     for(n=0;n<6;n++)
     {
          
       eeprom_write(n,coded_change[n]);
       Delay5ms();
     }
    }     
   }
   }
     /**********pass**********/
 if(compare==1)
 {
     
  for(k=0;k<6;k++)
  {
     
   if(coded[k]!=coded_set[k])
   {
     
    pass=0;
    flag_5s=0;
    break;
   }
   else 
   {
     
    pass=1;
    compare=0;
   }
  }
 }  
  if(compare==0&&pass==1)
  {
     
   pass=0;
   flag_smg=2;
   flag_5s=1;
  }
  /**********return**********/
  if(flag_return==1&&flag_smg==2)
  {
     
    flag_return=0;
    flag_smg=0;
  }
  /**********led**********/
  if((count==6)&&(compare==1))
    flag_led=1;
  else
   flag_led=0;
   
  if(flag_20ms)
  {
     
    flag_20ms=0;
   if(flag_led==0) led_off();
   else if(flag_led==1) led1_on();
   else if(flag_led==2) led7_on();
   else if(flag_led==3) led8_on();
   }
  /**********relay**********/
  if(flag_relay)
    relay_on();
  else
   relay_off();
 /**********smg**********/
   if(flag_smg==0)
  {
     
    flag_relay=0;
    dspbuf[0]=11;
    dspbuf[1]=11;
    dspbuf[2]=11;
    dspbuf[3]=11;
    dspbuf[4]=11;
    dspbuf[5]=11;
    dspbuf[6]=11;
    dspbuf[7]=11;
  }
  else if(flag_smg==1)
  {
     
    flag_relay=0;
    dspbuf[0]=10;
    dspbuf[1]=11;
    dspbuf[2]=coded_set[0];
    dspbuf[3]=coded_set[1];
    dspbuf[4]=coded_set[2];
    dspbuf[5]=coded_set[3];
    dspbuf[6]=coded_set[4];
    dspbuf[7]=coded_set[5];
  }
  else if(flag_smg==2)
  {
     
    flag_relay=1;
    dspbuf[0]=0;
    dspbuf[1]=11;
    dspbuf[2]=11;
    dspbuf[3]=11;
    dspbuf[4]=0;
    dspbuf[5]=15;
    dspbuf[6]=13;
    dspbuf[7]=14;
  }
  else if(flag_smg==3)
  {
     
    flag_relay=0;
    dspbuf[0]=12;
    dspbuf[1]=11;
    dspbuf[2]=coded_change[0];
    dspbuf[3]=coded_change[1];
    dspbuf[4]=coded_change[2];
    dspbuf[5]=coded_change[3];
    dspbuf[6]=coded_change[4];
    dspbuf[7]=coded_change[5];
  }
 }
}
void timer0_isr(void)  interrupt 1
{
     
 static unsigned char flag_key_time=0;
 static unsigned char flag_20ms_time=0;
 static unsigned int flag_return_time=0;
 
 if(++flag_key_time==30)
 {
     
   flag_key_time=0;
   flag_key=1;
 }
 
 if(++flag_20ms_time>=20)
 {
     
   flag_20ms_time=0;
   flag_20ms=1;
 }
 
 if(flag_5s&&key_press==0)
 {
     
   if(++flag_return_time>=5000)
  {
     
    flag_return_time=0;
    flag_return=1;
  }
 }
 else
  flag_return_time=0;
  smg_display();
}