test07clock.c

单片机 89s52+ds12b887+ds18b20时钟温度程序.rar

/*
以写内容：初始化液晶后读时钟将时钟写入液晶，按键中断中setupint=1时读取
年数据然后写向0x80+0x40;读取液晶值已经完成。08-11-29
加入按键设置时间共五键设置向上向下完成取消加入温度DS18B20

*/
#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit rs=P1^0;
sbit lcde=P1^1;
sbit lcdrw=P1^6;
sbit dscs=P1^2;
sbit dsas=P1^3;
sbit dsrw=P1^4;
sbit dsds=P1^5;
sbit complete=P3^4;
sbit cancle=P3^5;
sbit setweek=P3^6;
sbit up=P3^0;
sbit down=P3^1;
sbit DQ=P3^7;//ds18b20与单片机连接口
uchar code nyr[]=" 20  -  -";
uchar code sfm[]="  :  :       . C";
uchar code addnyr[]={0x83,0x86,0x89,0x8c,0xc0,0xc3,0xc6};
uchar code addc[]={0x09,0x08,0x07,0x06,0x04,0x02,0x00};
uchar code week[]="SunMonTueWedThuFriSta";
uchar data clockdata[5];
uchar setupint,readc;
uchar data disdata[5];
uint tvalue;//温度值
uchar tflag;//温度正负标志
void delay(uchar x)
{
	uchar j,i;
	for(i=x;i>0;i--)
	for(j=110;j>0;j--);
}
/***********************液晶程序*******************************/
void write_com(uchar command)
{
 	 lcdrw=0;
	 rs=0;
	 lcde=0;
	 P0=command;
	 delay(5);
	 lcde=1;
	 delay(5);
	 lcde=0;
}

void write_date(uchar date)
{
	lcdrw=0;
	rs=1;
	lcde=0;
	P0=date;
	delay(5);
	lcde=1;
	delay(5);
	lcde=0;
}
void init()
{
	uchar i;
	write_com(0x38);
	write_com(0x08);
	write_com(0x01);
	write_com(0x06);
	write_com(0x0c);
	write_com(0x80);
	for(i=0;i<9;i++)
	{
		write_date(nyr[i]);
	}
		write_com(0x80+0x40);
	for(i=0;i<16;i++)
	{
		write_date(sfm[i]);
	}	
}
uchar read_ds(uchar add)
{
	uchar dsdate;
	dsas=1;
	dsds=1;
	dsrw=1;
	dscs=0;
	P2=add;
	dsas=0;
	dsds=0;
	P2=0xff;
	dsdate=P2;
	dsds=1;
	dsas=1;
	dscs=1;
	return dsdate;
}
void wc_lcd()
{
	uchar temp,si,ge,i,j;
	for(i=0;i<7;i++)
	{
		temp=read_ds(addc[i]);
		si=temp/10;
		ge=temp%10;
		write_com(addnyr[i]);
		if(i==3)
		{
			for(j=0;j<3;j++)
			{
			write_date(week[ge*3+j]);
			}
		}
		else
		{
		write_date(0x30+si);
		write_date(0x30+ge);
		}
	}
	
}
void wrds(uchar add,uchar sj)
{
 		dscs=0;
		dsas=1;
		dsds=1;
		dsrw=1;
		P2=add;
		dsas=0;								  
		dsrw=0;
		P2=sj;
		dsrw=1;
		dsas=1;
		dscs=1;
}	
void write_clock()
{
	//wrds(0x0a,0xb0);
	wrds(0x0b,0x86);
	wrds(0x00,50);
	wrds(0x02,59);
	wrds(0x04,23);
	wrds(0x06,2);
	wrds(0x07,1);
	wrds(0x08,12);
	wrds(0x09,8);
	wrds(0x0b,0x06);
	//wrds(0x32,0x20);

}

void main()
{
	init();
	write_clock();
	while(1)
	{
 	wc_lcd();
 	}
}