第四届蓝桥杯单片机省赛

最新推荐文章于 2025-05-18 20:31:45 发布

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最新推荐文章于 2025-05-18 20:31:45 发布

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文章标签：单片机蓝桥杯

本文链接：https://blog.youkuaiyun.com/m0_62431348/article/details/123722343

版权

直接复制粘贴然后运行

然后打开stc烧录到开发板上面就能用程序哪里不懂的话问我，我闲的蛋疼！

#include <STC15F2K60S2.H>
#include <intrins.h>
unsigned char tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xff};
unsigned char yi,er,san,si,wu,liu,qi,ba;
unsigned char a=0,b=0;
unsigned char yuzhi=50;
bit panding,zuduan=0,fanzhuan=1;
int shuju;
unsigned char cuncu;

unsigned char shijian[]={0,30,8,0,0,0,0};
unsigned char num[7];

sbit SCK=P1^7;
sbit SDA=P2^3;
sbit RST = P1^3; // DS1302复位

#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_();}

#define SlaveAddrW 0xA0
#define SlaveAddrR 0xA1

sbit SDBA = P2^1; /* 数据线 */
sbit SCL = P2^0; /* 时钟线 */

//总线启动条件
void IIC_Start(void)
{
   SDBA = 1;
   SCL = 1;
   somenop;
   SDBA = 0;
   somenop;
   SCL = 0;
}

//总线停止条件
void IIC_Stop(void)
{
   SDBA = 0;
   SCL = 1;
   somenop;
   SDBA = 1;
}

//等待应答
bit IIC_WaitAck(void)
{
   SDBA = 1;
   somenop;
   SCL = 1;
   somenop;
   if(SDBA)
   {
       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)
       {
           SDBA = 1;
       }
       else
       {
           SDBA = 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(SDBA)
       da |= 0x01;
       SCL = 0;
       somenop;
   }
   return da;
}

unsigned char AD()
{
   unsigned char temp;
   IIC_Start();
   IIC_SendByte(0x90);
   IIC_WaitAck();
   IIC_SendByte(0x03);
   IIC_WaitAck();
   IIC_Stop();

   IIC_Start();
   IIC_SendByte(0x91);
   IIC_WaitAck();
   temp=IIC_RecByte();
   IIC_Stop();

   return temp;
}

unsigned char EEPROM(unsigned char add)
{
   unsigned char temp;
   IIC_Start();
   IIC_SendByte(0XA0);
   IIC_WaitAck();
   IIC_SendByte(add);
   IIC_WaitAck();
   IIC_Stop();

   IIC_Start();
   IIC_SendByte(0XA1);
   IIC_WaitAck();
   temp=IIC_RecByte();
   IIC_Stop();
   return temp;

}
void EEPROM2(unsigned char add,unsigned char dat)
{
   IIC_Start();
   IIC_SendByte(0XA0);
   IIC_WaitAck();
   IIC_SendByte(add);
   IIC_WaitAck();
   IIC_SendByte(dat);
   IIC_WaitAck();
   IIC_Stop();
}

void Write_Ds1302_Byte(unsigned char temp)
{
   unsigned char i;
   for (i=0;i<8;i++)
   {
       SCK=0;
       SDA=temp&0x01;
       temp>>=1;
       SCK=1;
   }
}

void Write_Ds1302( unsigned char address,unsigned char dat )
{
    RST=0;
   _nop_();
    SCK=0;
   _nop_();
    RST=1;
    _nop_();
    Write_Ds1302_Byte(address);
    Write_Ds1302_Byte(((dat/10)<<4)|(dat%10));
    RST=0;
}

unsigned char Read_Ds1302 ( unsigned char address )
{
    unsigned char i,temp=0x00;
   unsigned char dat1,dat2;
    RST=0;
   _nop_();
    SCK=0;
   _nop_();
    RST=1;
   _nop_();
    Write_Ds1302_Byte(address);
    for (i=0;i<8;i++)
    {
       SCK=0;
       temp>>=1;
        if(SDA)
        temp|=0x80;
        SCK=1;
   }
    RST=0;
   _nop_();
    RST=0;
   SCK=0;
   _nop_();
   SCK=1;
   _nop_();
   SDA=0;
   _nop_();
   SDA=1;
   _nop_();
   dat1=temp/16;
   dat2=temp%16;
   temp=dat1*10+dat2;
   return (temp);
}
void dingshi()
{
   unsigned char i,add;
   add=0x80;
   Write_Ds1302(0x8e,0x00);
   for(i=0;i<7;i++)
   {
       Write_Ds1302(add,shijian[i]);
       add=add+2;
   }
   Write_Ds1302(0x8e,0x80);
}

void DS1302()
{
   unsigned char i,add;
   add=0x81;
   Write_Ds1302(0x8e,0x00);
   for(i=0;i<7;i++)
   {
       num[i]=Read_Ds1302 (add);
       add=add+2;
   }
   Write_Ds1302(0x8e,0x80);
}

void Delayms(int ms)
{
   int i,j;
   for(i=0;i<ms;i++)
   for(j=845;j>0;j--);
}
void shumaguan1(unsigned char yi,unsigned char er)
{
   P2=0XC0;
   P0=0X01;
   P2=0XFF;
   P0=tab[yi];
   Delayms(1);

   P2=0XC0;
   P0=0X02;
   P2=0XFF;
   P0=tab[er];
   Delayms(1);
}
void shumaguan2(unsigned char san,unsigned char si)
{
   P2=0XC0;
   P0=0X04;
   P2=0XFF;
   P0=tab[san];
   Delayms(1);

   P2=0XC0;
   P0=0X08;
   P2=0XFF;
   P0=tab[si];
   Delayms(1);
}
void shumaguan3(unsigned char wu,unsigned char liu)
{
   P2=0XC0;
   P0=0X10;
   P2=0XFF;
   P0=tab[wu];
   Delayms(1);

   P2=0XC0;
   P0=0X20;
   P2=0XFF;
   P0=tab[liu];
   Delayms(1);
}
void shumaguan4(unsigned char qi,unsigned char ba)
{
   P2=0XC0;
   P0=0X40;
   P2=0XFF;
   P0=tab[qi];
   Delayms(1);

   P2=0XC0;
   P0=0X80;
   P2=0XFF;
   P0=tab[ba];
   Delayms(1);
}
void chushihua()
{
   P2=0XA0;P0=0X00;P2=0X80;P0=0XFF;
   P2=0XC0;P0=0X00;P2=0XFF;P0=0XFF;
}
void anjian()
{
if(P30==0)
{
   Delayms(5);
   if(P30==0)
   {
       while(~P30);
   }
   if(a==0)
   {
   if(b==0)
   {
       b++;

   }
   else if(b==1)
               {
                   b--;
                   zuduan=0;
               }
       }

}
if(P31==0)
{
   Delayms(5);
   if(P31==0)
   {
       while(~P31);
   }
   if(b==0)
   {
       if(a==0)
       {
           a++;
       }
       else if(a==1)
                   {
                       a--;
                   }
   }
       if(b==1)
       {
           zuduan=1;
           if(panding==1)
           {
               P2=0XA0;P04=0;P06=0; //如果蜂鸣器打开的话就断开蜂鸣器
               panding=0; //判定一次后就不再判定
           }
           if(panding==0)
           {
               P2=0XA0;P04=0;P06=fanzhuan;
               fanzhuan=~fanzhuan;
           }
       }

}
if(P32==0)
{
   Delayms(5);
   if(P32==0)
   {
       while(~P32);
   }
   if(a==1)
   {
       yuzhi++;
   }
   if(b==1)
   {
       P2=0XA0;P04=1;P06=0;
   }

}
if(P33==0)
{
   Delayms(5);
   if(P33==0)
   {
       while(~P33);
   }
   if(a==1)
   {
   yuzhi--;
   }
   if(b==1)
   {
       P2=0XA0;P04=0;P06=0;
   }
}

}
void jidianqi()
{
   if(b==0)
   {
       if(shuju/100<yuzhi)
       {
           P2=0XA0;
           P04=1;
           P06=0;
       }
       else if(shuju/100>yuzhi)
                   {
                       P2=0XA0;P04=0;P06=0;
                   }
   }
}
void fengmingqi()
{
   if(b==1)
   {
       if(shuju/100<yuzhi)
       {
           P2=0XA0;P04=0;P06=1;
           panding=1;
       }
       else if(shuju/100>yuzhi)
               {
                   P2=0XA0;P04=0;P06=0;
                   panding=0;

               }
   }
}

void main()
{

   chushihua();
   dingshi();
   while(1)
   {

       yuzhi=EEPROM(0X01);Delayms(2);

       jidianqi();
       if(zuduan==0)
       {
       fengmingqi();
       }
       anjian();
       if(a==0)
       {
       DS1302();
       shuju=AD()*39;
       yi=num[2]/10;er=num[2]%10;san=10;
       si=num[1]/10;wu=num[1]%10;liu=10;
       qi=shuju/1000,ba=shuju%1000/100;
       }
       if(a==1)
       {
           yi=10;er=10;san=11;si=11;wu=11;liu=11;qi=yuzhi/10;ba=yuzhi%10;
       }
       if(b==0)
       {
           P2=0X80;P0=0XFE;
       }
       if(b==1)
       {
           P2=0X80;P0=0XFD;
       }
       EEPROM2(0X01,yuzhi);
       shumaguan1(yi,er);
       shumaguan2(san,si);
       shumaguan3(wu,liu);
       shumaguan4(qi,ba);
   }
}