alarm_clock.c

来自「用51写的实时时钟,DS1302做时钟,LCM1602做显示,4个按键,带闹钟.」· C语言 代码 · 共 23 行

#include "reg51.h"
#include "typedef.h"
#include "lcd.h"
#include "alarm_clock.h"
#include "key.h"

uchar freq_count;

void alarm_clock()
{
	if((alarm_flag==true)&(clk_hour==hour)&(clk_min==min))
	{
		freq_count++;
		if(freq_count<10)
			beeper=true;
		if(freq_count>=10)
			beeper=false;
		if(freq_count==100)
			freq_count=0;
	}
	else
		beeper=false;
}