main.c

温度仪表软件

#include"reg52.h"
#include"intrins.h"
#include"interface.h"
#include"my_type.h"
#include"function.h"
#include"global_var.h"
float ad_temp;
uchar disp[4];
uint a[8];
uint i,j,ad_zhi;   	
uchar sh[3]={0,0,0};
uchar sl[3]={0,0,0};


void main()
{
	ds1307_init();
	ad7705_init();
	P2=0X3C;   // P1,P2,P3当输出方式变为输入时，得先向端口写1
	while(1)
		{	 
	 	 	while(AD7705_DRDY==1);			 //当DRDY为低电平时执行先读取内码值，再转换成温度值
			Wait2us;
			ad_temp=ad7705_read()*0.00954672-50;	
			Wait5us;	
			display_process(ad_temp);
	    	display();
	  		alarm();
		 	key();	   	 
       }  
}