CT107 STC15F2K60S2單片機18B20溫度顯示程序

ID:957828 · 發(fā)表于 2021-7-31 10:37

#include "STC15F2K60S2.h"
#include "onewire.h"
#include "absacc.h"
#include "intrins.h"

typedef unsigned char uchar;
typedef unsigned int uint;

uchar code tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};//duan ma
uchar dspbuf[8]={10,10,10,10,10,10,10,10};//huan cong qu

bit temp_flag = 0;//wen du

void Enable(uchar yc);
void cls_buzz();
void cls_led();
void display(void);

void main()
{
      char temperature;
      cls_buzz();cls_led();
      TMOD &= 0xF0;             //???????
      TL0 = 0xCD;             //1ms
      TH0 = 0xD4;             //??????
      TF0 = 0;             //??TF0??
      TR0 = 1;             //???0????
      ET0 = 1;
      EA = 1;

      while(1)
      {
            if(temp_flag)
            {
                     temp_flag = 0;
                     temperature = rd_temperature();
            }
            (temperature > 10) ? (dspbuf[6] = temperature/10) : (dspbuf[6] = 10);
            dspbuf[7] = temperature % 10;
      }

}
void timer0() interrupt 1
{
      static uchar ms=0;
      if(++ms == 50)
      {
            ms = 0;
            temp_flag = 1;
      }
      display();
}
void Enable(uchar yc)
{
      switch (yc)
      {
            case 4:
                     P2 = (P2 & 0x1f) | 0x80;break;
            case 5:
                     P2 = (P2 & 0x1f) | 0xa0;break;
            case 6:
                     P2 = (P2 & 0x1f) | 0xc0;break;
            case 7:
                     P2 = (P2 & 0x1f) | 0xe0;break;
      }
}

void cls_buzz()
{
      Enable(5);
      P0 = 0x00;
      P2 &= 0x1f;
}
void cls_led()
{
      Enable(4);
      P0 = 0xff;
      P2 &= 0x1f;
}
void display(void)
{
      static uchar dspcom = 0;

      Enable(7);
      P0 = 0xff;//xiao yin
      P2 &= 0x1f;

      P0 = 1<<dspcom;
      Enable(6);//wei xuan
      P2 &= 0x1f;

      Enable(7);//duan xuan
      P0 = tab[dspbuf[dspcom]];
      P2 &= 0x1f;

      if(++dspcom == 8)
            dspcom = 0;
}

初學,如有錯誤請大家多多指教,代碼下載:

my.rar (80.53 KB, 下載次數(shù): 11)

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CT107 STC15F2K60S2單片機18B20溫度顯示程序

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