十一届蓝桥杯开发板测温功能

ID:747099 · 发表于 2020-10-19 08:21

#include "reg52.h"  //定义51单片机特殊功能寄存器
#include "intrins.h"
#include "IIC.h"
#include "ds18b20.h"

#define u8 unsigned char
#define u16 unsigned int


sbit KEY1=P3^0;//s7按键
sbit KEY2=P3^1;//s6按键
sbit KEY3=P3^2;
sbit KEY4=P3^3;

u8 LED[8]={0XFE,0XFD,0XFB,0XF7,0XEF,0XDF,0XBF,0X7F};                                                                                                                               //1100 0110  //1000 1100
char code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xBF,0xff,0x7f,0xc6,0x8C};

u16 counts;

u8 Temp_H=30; //温度的上限
u8 Temp_L=20; //温度的下限
u8 Temp_Hx=30; //温度的上限
u8 Temp_Lx=20; //温度的下限

u8  temp_flag; //温度上下限的标志位
u8 view_chag; //S4按键显示与设置切换按键标志位

u8 times;

#define MAIN_Fosc             12000000L

void delay_ms(unsigned int ms)
{
  unsigned int i;
      do{
            i = MAIN_Fosc / 14000;
               while(--i)       ;
   }while(--ms);
}

void Smg_display1(u8 yi,u8 er,u8 san,u8 si)
{
      P2=(P2&0X1F)|0xc0;
      P0=0X01;
      P2=(P2&0X1F)|0xf0;
      P0=table[yi];
      delay_ms(1);

      P2=(P2&0X1F)|0xc0;
      P0=0X02;
      P2=(P2&0X1F)|0xf0;
      P0=table[er];
      delay_ms(1);

      P2=(P2&0X1F)|0xc0;
      P0=0X04;
      P2=(P2&0X1F)|0xf0;
      P0=table[san];
      delay_ms(1);

      P2=(P2&0X1F)|0xc0;
      P0=0X08;
      P2=(P2&0X1F)|0xf0;
      P0=table[si];
      delay_ms(1);


}

void Smg_display2(u8 wu,u8 liu,u8 qi,u8 ba)
{
      P2=(P2&0X1F)|0xc0;
      P0=0X10;
      P2=(P2&0X1F)|0xf0;
      P0=table[wu];
      delay_ms(1);

      P2=(P2&0X1F)|0xc0;
      P0=0X20;
      P2=(P2&0X1F)|0xf0;
      P0=table[liu];
      delay_ms(1);

      P2=(P2&0X1F)|0xc0;
      P0=0X40;
      P2=(P2&0X1F)|0xf0;
      P0=table[qi];
      delay_ms(1);

      P2=(P2&0X1F)|0xc0;
      P0=0X80;
      P2=(P2&0X1F)|0xf0;
      P0=table[ba];
      delay_ms(1);
}
void TIME_Init()
{
      TMOD=0X01;
      TH0=(65535-50000)/256;
      TL0=(65535-50000)%256;
      ET0=1;
      EA=1;
      TR0=1;
}

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