alarm.c

温度仪表软件

#include"reg52.h"
#include"interface.h"
#include"my_type.h"
#include"global_var.h"
#include"function.h"

/*********报警处理子程序**********/
void alarm()
{
	float set1,set2;
	float *s1,*s2;

	read_nbyte(0xa1,0x03,(uchar*)s1,3);
	set1=*s1;						//将上限报警值赋给set1
	read_nbyte(0xa1,0x10,(uchar*)s2,3);
	set2=*s2;						//将下限报警值赋给set2	

	if(ad_temp>=set1&&ad_temp<=set2)
	{					  
		BUZZ=0;
		delay(5);
		BUZZ=1;
		delay(5);
	}
}