第八届蓝桥杯单片机省赛

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已于 2022-03-24 21:25:38 修改 · 1.2k 阅读

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#单片机 #蓝桥杯

于 2022-03-24 21:24:37 首次发布

本文介绍了参加第八届蓝桥杯单片机省赛的程序实现，包括STC15F2K60S2单片机的程序编写，涉及到时间显示、温度测量和按键交互等功能。程序中详细解释了如何烧录和运行代码，并展示了与DS1302实时时钟及DS18B20温度传感器的通信过程。

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,0xc6};
unsigned char yi,er,san,si,wu,liu,qi,ba;
unsigned char shijian[]={50,59,23,0,0,0,0};
unsigned char num[7];
unsigned char shezhi1=0;
unsigned char shezhi2=0;
unsigned char gaibian=0;
unsigned char panding=0;
long a,b;
unsigned char sansuo=0,sansuo1=0,sansuo2=0;
unsigned char naozhong=0;
unsigned char dingshi[]={0,0,0};
unsigned char huan;
unsigned char jia1=0,jia2=0,jia3=0;
unsigned char jian1=0,jian2=0,jian3=0;
unsigned char shi,fen,miao;
unsigned char shi1,fen1,miao1;
unsigned char yanshi=0;
int m;
bit add=0;

bit qiehuan=0;

unsigned char wendu;

sbit DQ = P1^4; //单总线接口

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

void Delayms(int ms)
{
   int i,j;
   for(i=0;i<ms;i++)
       for(j=845;j>0;j--);
}

void chushihua()
{
   P2=0XA0;P0=0X00;P2=0X80;P0=0XFF;
   P2=0XC0;P0=0X00;P2=0XFF;P0=0XFF;
}
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 Delay500us() //@11.0592MHz
{
unsigned char i, j;

   _nop_();
   _nop_();
   i = 6;
   j = 93;
   do
   {
       while (--j);
   } while (--i);
}

void Delay80us() //@11.0592MHz
{
unsigned char i, j;

   _nop_();
   i = 1;
   j = 217;
   do
   {
       while (--j);
   } while (--i);
}

void chushihua2()
{
   DQ=0;
   Delay500us();
   DQ=1;
   Delay500us();
}

void Write_DS18B20(unsigned char dat)
{
   unsigned char i;
   for(i=0;i<8;i++)
   {
       DQ = 0;
       DQ = dat&0x01;
       Delay80us();
       DQ = 1;
       dat >>= 1;
   }
   Delay80us();
}

unsigned char Read_DS18B20(void)
{
   unsigned char i;
   unsigned char dat;

   for(i=0;i<8;i++)
   {
       DQ = 0;
       dat >>= 1;
       DQ = 1;
       if(DQ)
       {
           dat |= 0x80;
       }
       Delay80us();
   }
   return dat;
}

unsigned char zhuchengxu()
{
   unsigned char di,gao,temp;
   chushihua2();
   Write_DS18B20(0xcc);
   Write_DS18B20(0x44);
   Delay500us();

   chushihua2();
   Write_DS18B20(0xcc);
   Write_DS18B20(0xbe);
   Delay500us();

   di=Read_DS18B20();
   gao=Read_DS18B20();

   di=di>>4;
   gao=gao<<4;
   temp=di|gao;
   return temp;

}

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_();_nop_();_nop_();_nop_();_nop_();_nop_();;
    SCK=0;
   _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
    RST=1;
    _nop_(); _nop_();_nop_();_nop_();_nop_();_nop_();_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_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
    SCK=0;
   _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
    RST=1;
   _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
    Write_Ds1302_Byte(address);
    for (i=0;i<8;i++)
    {
       SCK=0;
       temp>>=1;
        if(SDA)
        temp|=0x80;&