ds1302+18b20+lcd1602时钟日期温度显示.c

花钱购买的C51学习板里的源码

/**********************************************************************
* 程序名称：18B20+LCD1602+2404日期 /时钟/星期（可调）和温度显示实验

***********************************************************************/
#include<reg51.h>                   
#include<intrins.h>
#include<ds1302.h>
#include<lcd1602.h>
#include<ds18b20.h>
#include<hr_mode_trans.h>
#include<key.h>
#define uchar unsigned char         
#define uint unsigned int
delay(uint z)
{
while( --z);
}

main()			
{	
	write_cgram();

	lcd_init();

	write_1302(0x8e,0x00); //WP=0
	write_1302(0x90,0x00);	//ban TCS
	write_1302(0x80,0x00);	//CH=0
	write_1302(0x8e,0x80); //WP=1
	while(1)
	{
		if(num==0)
		{
			read_time();
			hr_mode();
			if(time_data[6]%2==0)	 //设定2秒读一次温度值
	 			flag=1;
			if(flag)
			{  
				read_temp();
				disp_temp();
				flag=0;			
			}			  
			display_time();
		}
		key_scan();
	}
}