第五届蓝桥杯单片机省赛

最新推荐文章于 2025-01-11 23:07:18 发布

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最新推荐文章于 2025-01-11 23:07:18 发布 · 445 阅读

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#单片机 #蓝桥杯

本文介绍了第五届蓝桥杯单片机省赛的程序实现，包括温度读取、显示及按键控制的细节，涉及P14口的控制、延时函数和温度传感器的读写操作。

复制粘贴然后运行，不用创建别的文件。

第五届比较难。

#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 wendu;
bit a=0;
unsigned char panding;
unsigned char shangxian=30,xiaxian=20;
unsigned char shijian,b,c=0,d=0;

void Delay500us();
void Delay80us();

void Timer0Init(void);
void chushihua1(void)
{
   P14=0;
   Delay500us();
   P14=1;
   Delay500us();
}
void Delay500us()       //@11.0592MHz
{
   unsigned char i, j;

   _nop_();
   _nop_();
   i = 6;
   j = 93;
   do
   {
       while (--j);
   } while (--i);
}
void xiechengxu(unsigned char dat)
{
   unsigned char i;
   for(i=0;i<8;i++)
   {
       P14=0;
       P14=dat&0X01;
       Delay80us();
       P14=1;
       dat=dat>>1;
   }
}

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

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

unsigned char duchengxu(void)
{
   unsigned char i,dat;
   for(i=0;i<8;i++)
   {
       P14=0;
       dat=dat>>1;
       P14=1;
       if(P14==1)
       {
           dat=dat|0x80;
       }
       Delay80us();

   }
   return dat;
}
unsigned char zhuchengxu(void)
{
   unsigned char di,gao,shuju;
   chushihua1();
   xiechengxu(0XCC);
   xiechengxu(0X44);
   Delay500us();

   chushihua1();
   xiechengxu(0XCC);
   xiechengxu(0XBE);
   Delay500us();

   di=duchengxu(); //先读取低位
   gao=duchengxu(); //在读取高位


shuju=((gao*256+di)>>4);


   return shuju;
}

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 juzhenjianpan()
{



   P44=0;P42=1;P34=1;P35=1;
   if((P42==1)&&(P34==1)&&(P35==1))
   {
   if(P30==0)
   {
       Delayms(5);
       if(P30==0)
       {
           while(!P30);
       }
       if(panding==0)
       {
           shangxian=shangxian+0;
           panding++;
       }
       else if(panding==1)
                   {
                       shangxian=shangxian;
                       panding++;
                   }
                   else if(panding==2)
                               {
                                       panding++;
                                       xiaxian=xiaxian+0;
                               }
                               else if(panding==3)
                                       {

                                           xiaxian=xiaxian;
                                       }
   }
   if(P31==0)
   {
       Delayms(5);
       if(P31==0)
       {
           while(!P31);
       }
       if(panding==0)
       {
           shangxian=shangxian+30;
           panding++;
       }
       else if(panding==1)