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   源码介绍

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 #include<reg52.h>
#include<intrins.h>
unsigned char code  displaywelcome[]={" Welcome To My Lcd Timer"};//欢迎界面
unsigned char code  displaywish[]={" Happy Every Day ^_^"};	   //欢迎界面
unsigned char code  overtemperature[]={"OVERTEMPERATURE!"};
unsigned char code  digit[]={"0123456789"};		   //数字代码
unsigned char mode,TH,TL,TN,TD,length,tempswitch,Maxtemp=40,amode,alarmmode,minutes,hours,
minutea,seconds,houra=12;
sbit SCLK=P3^6;	//DS1302时钟输入
sbit DATE=P3^4;	//DS1302数据输入								
sbit REST=P3^5;	//DS1302复位端口
sbit SET=P3^0;	//DS1302设置模式选择位
sbit ADD=P3^1;	//增加
sbit RED=P3^2;	//减小
sbit CANL=P3^3;
void delay1ms(int i)//1毫秒延时
{
   int j,k;
   while(i--)
   for(j=76;j>1;j--);
   for(k=29;k>1;k--);					
 }
void delaynus(unsigned char n) //延时若干微秒
{
   unsigned char i;
   for(i=0;i<n;i  );	
}
/***********蜂鸣器模块************/
 sbit beep=P1^2;	//位定义，定义P.6位fmp
 void dely500(void)
{
  unsigned char i;
  for(i=250;i>0;i--)
    {
      _nop_();
    }
}
void baojing(unsigned char n)
{
   unsigned char x,i;
   while(n--)
  {
     for(i=0;i<5;i  )
     {
        for(x=0;x<200;x  )
	{
	   beep=~beep;
	   dely500();
	}
      }
     for(i=0;i<3;i  )
    {
	for(x=0;x<200;x  )
	{
	   beep=~beep;
	   dely500();
	   dely500();
	}
    }
  }
}
 /*******DS1302模块*************/
 void Write1302(unsigned char date)//向1302写数据
 {
 	unsigned char i;
	SCLK=0;
	delaynus(2);
	for(i=0;i<8;i  )
	{
		DATE=date&0x01;
		SCLK=1;
		delaynus(2);
		SCLK=0;
		delaynus(2);
		date>>=1;

	}
 }
 void WriteSet1302(unsigned char cmd,unsigned char date) //根据相应的命令输入相应的数据
 {
 		REST=0;
		SCLK=0;
		REST=1;
		Write1302(cmd);
		delaynus(5);
		Write1302(date);
		SCLK=1;
		REST=0;
 }
 unsigned char  Read1302(void)	//读取1302数据
 {
 	unsigned char i,date;
	delaynus(2);
	for(i=0;i<8;i  )
	{
		date>>=1;
		if(DATE==1)
		date|=0x80;
		SCLK=1;
		delaynus(2);
		SCLK=0;
		delaynus(2);
	}
	return date; 
 }
unsigned char  ReadSet1302(unsigned char cmd)//根据命令读取1302相应的值
{
	unsigned char date;
	REST=0;
	SCLK=0;
	REST=1;
	Write1302(cmd);
	delaynus(2);
	date=Read1302();
	SCLK=1;
	REST=0;
	return date;
}
void IntDS1302(void) //DS1302初始化
{	
  unsigned char flag;
   
    flag= ReadSet1302(0x81);
	if(flag&0x80)	{      //判断时钟芯片是否关闭
    WriteSet1302(0x8E,0x00);                 //根据写状态寄存器命令字，写入不保护指令 
   	WriteSet1302(0x80,((0/10)<<4|(0%10)));   //根据写秒寄存器命令字，写入秒的初始值
	WriteSet1302(0x82,((0/10)<<4|(0%10)));   //根据写分寄存器命令字，写入分的初始值
	WriteSet1302(0x84,((0/10)<<4|(0%10))); //根据写小时寄存器命令字，写入小时的初始值
	WriteSet1302(0x86,((0/10)<<4|(0%10))); //根据写日寄存器命令字，写入日的初始值
	WriteSet1302(0x88,((0/10)<<4|(0%10))); //根据写月寄存器命令字，写入月的初始值
	WriteSet1302(0x8c,((10/10)<<4|(10%10)));  //根据写年寄存器命令字，写入年的初始值
	WriteSet1302(0x90,0xa5);                //打开充电功能 选择2K电阻充电方式
	WriteSet1302(0x8E,0x80);			   //根据写状态寄存器命令字，写入保护指令
  }
  }
/***************液晶显示模块*****************/
sbit RS=P2^4;
sbit RW=P2^5;
sbit E=P2^6;
sbit BF=P0^7;
  /*液晶忙检测*/
bit BusyTest(void)
{
	bit result;
	RS=0;
	RW=1;
	E=1;
	_nop_();
	_nop_();
	_nop_();
	result=BF;
	_nop_();
	_nop_();
	_nop_();
	E=0;
	return result;
}
/*写指令*/
void Write_com(unsigned char command)
{
	while(BusyTest()!=0);
	RS=0;
	RW=0;
	E=0;
	_nop_();
	_nop_();
	_nop_();
	P0=command;
	_nop_();
	_nop_();
	_nop_();
	E=1;
	_nop_();
	_nop_();
	_nop_();
	E=0;
}
/*写地址*/
void Write_Address(unsigned char address)
{
	Write_com(address|0x80);
	delay1ms(1);	
} 
/*写数据*/
void Write_Date(unsigned char date)
{
	RS=1;
	RW=0;
	E=0;
	_nop_();
	_nop_();
	_nop_();
	P0=date;
	_nop_();
	_nop_();
	_nop_();
	E=1;
	_nop_();
	_nop_();
	_nop_();
	E=0;
	delay1ms(1);
}
/*初始化*/
void Lcd_Int(void)
{
	Write_com(0x38);
	delay1ms(1);
	Write_com(0x38);
	delay1ms(1);
	Write_com(0x06);
	delay1ms(1);
	Write_com(0x0c);
	delay1ms(1);
	Write_com(0x01);		
}
void displaymainpart(void)//显示液晶主要部分（不变化部分）
{
	Write_Address(0x01);
	delay1ms(1);
	Write_Date('D');
	Write_Date('A');
	Write_Date('T');
	Write_Date('E');
	Write_Date(':');
	delay1ms(1);
	Write_Address(0x0A);
	delay1ms(1);
	Write_Date('-');
	Write_Address(0x0D);
	Write_Date('-');
	Write_Address(0x42);
	Write_Date('T');
	Write_Date('I');
	Write_Date('M');
	Write_Date('E');
	Write_Date(':');
	Write_Address(0x4A);
	Write_Date('-');
	Write_Address(0x4D);
	Write_Date('-');
	Write_Address(0x06);
	Write_Date('2');
	Write_Date('0');
}
void display_Second(unsigned char second) //在液晶上显示秒
{	
	unsigned char i,j;
	i=second/10;
	j=second%10;
	Write_Address(0x4E);
	Write_Date(digit[i]);
	Write_Date(digit[j]);
	delay1ms(1);
}
void display_Minute(unsigned char minute) //在液晶上显示分
{
	unsigned char i,j;
	i=minute/10;
	j=minute%10;
	Write_Address(0x4B);
	Write_Date(digit[i]);
	Write_Date(digit[j]);
	delay1ms(1);
}
void display_Hour(unsigned char hour)  //在液晶上显示时
{
	unsigned char i,j;
	i=hour/10;
	j=hour%10;
	Write_Address(0x48);
	Write_Date(digit[i]);
	Write_Date(digit[j]);
	delay1ms(1);
}
void display_Day(unsigned char day)	//在液晶上显示日
{
	unsigned char i,j;
	i=day/10;
	j=day%10;
	Write_Address(0x0E);
	Write_Date(digit[i]);
	Write_Date(digit[j]);
	delay1ms(1);
}
void display_Month(unsigned char month)	//在液晶上显示月
{
	unsigned char i,j;
	i=month/10;
	j=month%10;
	Write_Address(0x0B);
	Write_Date(digit[i]);
	Write_Date(digit[j]);
	delay1ms(1);
}
void display_Year(unsigned char  year) //在液晶上显示年
{
	unsigned char i,j;
	i=year/10;
	j=year%10;
	Write_Address(0x08);
	Write_Date(digit[i]);
	Write_Date(digit[j]);
	delay1ms(1);
}
void display_houra(unsigned char x)	//闹钟小时部分显示
{
	unsigned char i,j;
	i=x/10;
	j=x%10;
	Write_Address(0x44);
	Write_Date(digit[i]);
	Write_Date(digit[j]);	
}
void display_minutea(unsigned char x)//闹钟分钟部分显示
{
	unsigned char i,j;
	i=x/10;
	j=x%10;
	Write_Address(0x47);
	Write_Date(digit[i]);
	Write_Date(digit[j]);
}
void display_Time(void)	 //显示实时时间
{
	unsigned char value,day,month,year;
	Write_com(0x0c);
	value=ReadSet1302(0x81);
	seconds=(((value&0x70)>>4)*10 (value&0x0f));
	display_Second(seconds);
	value=ReadSet1302(0x83);
	minutes=(((value&0x70)>>4)*10 (value&0x0f));
	display_Minute(minutes);
	value=ReadSet1302(0x85);
	hours=(((value&0x70)>>4)*10 (value&0x0f));
	display_Hour(hours);
	value=ReadSet1302(0x87);
	day=(((value&0x70)>>4)*10 (value&0x0f));
	display_Day(day);
	value=ReadSet1302(0x89);
	month=(((value&0x70)>>4)*10 (value&0x0f));
	display_Month(month);
	value=ReadSet1302(0x8D);
	year=(((value&0xf0)>>4)*10 (value&0x0f));
	display_Year(year);
}
void displaystar(void) //显示欢迎界面
{
	unsigned char i,j;
	Write_Address(0x0f);
	while(displaywelcome[i]!='\0')
	{
		Write_Date(displaywelcome[i]);
		i  ;
		delay1ms(1);
	}
	i=0;
	Write_Address(0x4f);
	while(displaywish[i]!='\0')
	{
		Write_Date(displaywish[i]);
		i  ;
		delay1ms(1);
	}
	j=40;
	while(j--)
	{
		Write_com(0x18);//循环左移
		delay1ms(700);
	} 
	Write_com(0x01);
	delay1ms(10);
}
void gbdisplay(unsigned char address) //时间调整时光标闪烁
{
	Write_Address(address);
	delay1ms(5);
	Write_com(0x0f);
	delay1ms(5);   	 
}
void displaymaxt(unsigned char x) //显示最大温度
{
	unsigned char i,j,k;
	Write_com(0x0c);
	delay1ms(2);
	Write_Address(0x44);
	i=x/100;
	j=x/10;
	k=x%10;
	Write_Date(digit[i]);
	Write_Date(digit[j]);
	Write_Date(digit[k]);	
}
/*****************时间调整部分*********************/
void hourset(void)		//调时
{
	unsigned char timevalue,hour;
	delay1ms(500);	//防止多次触发
	WriteSet1302(0x8e,0x00);//将写保护去掉，确保能正常将调整后的数值写入DS1302
	timevalue=ReadSet1302(0x85); //读取此时的数值
	hour=(((timevalue&0x70)>>4)*10 (timevalue&0x0f));
	while(1)
	{
		
		if(ADD==0)
		{
			delay1ms(50);
			if(ADD==0)
			{
				hour  ;
				delay1ms(300);
				while(ADD==0);
			}
		}
		if(RED==0)
		{
			delay1ms(50);
			if(RED==0)
			{
				hour--;
				delay1ms(300);
				if(hour==0) hour=23;
				while(RED==0);
			}
		}
		timevalue=(((hour)/10)<<4|(hour%10));
		WriteSet1302(0x84,timevalue);
		delay1ms(1);
		display_Hour(hour);
		Write_Address(0x49);
		delay1ms(5);
		if(hour>=24) hour=0;
		delay1ms(5);
		if(CANL==0) 
		{
			mode=0;
			Write_com(0x0c);
			break;
		}
		if(SET==0) break;
	}
	WriteSet1302(0x8e,0x80);
}
void minuteset(void)			 //调分
{
	unsigned char timevalue,minute;
	delay1ms(500);
	WriteSet1302(0x8e,0x00);
	timevalue=ReadSet1302(0x83);
	minute=(((timevalue&0x70)>>4)*10 (timevalue&0x0f));
	while(1)
	{
		if(ADD==0)
		{
			delay1ms(10);
			if(ADD==0)
			{
				minute  ;
				if(minute>=60) timevalue=0;
				while(ADD==0);
			}
		}
		if(RED==0)
		{
			delay1ms(10);
			if(RED==0)
			{
				minute--;
				delay1ms(300);
				if(minute==0) minute=59;
				while(RED==0);
			}
		}
		timevalue=((minute/10)<<4|(minute%10));
		WriteSet1302(0x82,timevalue);
		delay1ms(1);
		display_Minute(minute);
		Write_Address(0x4c);
		delay1ms(5);
		if(minute>=60) minute=0;
		delay1ms(5);
		if(CANL==0) 
		{
			mode=0;
			Write_com(0x0c);
			break;
		}
		if(SET==0) break;
	}
	WriteSet1302(0x8e,0x80);
}
void secondset(void)			   //秒归零
{
	unsigned char second;
	delay1ms(500);
	WriteSet1302(0x8e,0x00);
	while(1)
	{
		if(ADD==0)
		{
			delay1ms(10);
			if(ADD==0)
			{
				second=0;
				WriteSet1302(0x80,0x00);
				while(ADD==0);
			}
		}
		delay1ms(1);
		display_Second(second);
		Write_Address(0x4f);
		delay1ms(5);
		if(CANL==0) 
		{
			mode=0;
			Write_com(0x0c);
			break;
		}
		if(SET==0) break;
	}
	WriteSet1302(0x8e,0x80);
}
void yearset(void)					//调年
{
	unsigned char datevalue,year;
	delay1ms(500);
	WriteSet1302(0x8e,0x00);
	datevalue=ReadSet1302(0x8d);
	year=(((datevalue&0x70)>>4)*10 (datevalue&0x0f));
	while(1)
	{
		if(ADD==0)
		{
			delay1ms(10);
			if(ADD==0)
			{
				year  ;
				while(ADD==0);
			}
		}
		if(RED==0)
		{
			delay1ms(10);
			if(RED==0)
			{
				year--;
				delay1ms(300);
				while(RED==0);
			}
		}
		datevalue=((year/10)<<4|(year%10));
		WriteSet1302(0x8c,datevalue);
		delay1ms(5);	
		display_Year(year);
		delay1ms(5);
		Write_Address(0x09);
		delay1ms(5);
		if(CANL==0) 
		{
			mode=0;
			Write_com(0x0c);
			break;
		}
		if(SET==0) break;
	}
	WriteSet1302(0x8e,0x80);
}
void monthset(void)						//调月
{
	unsigned char datevalue,month;
	delay1ms(500);
	WriteSet1302(0x8e,0x00);
	datevalue=ReadSet1302(0x89);
	month=(((datevalue&0x70)>>4)*10 (datevalue&0x0f));
	while(1)
	{
		if(ADD==0)
		{
			delay1ms(10);
			if(ADD==0)
			{
				month  ;
				if(month>12) month=1;
				while(ADD==0);
			}
		}
		if(RED==0)
		{
			delay1ms(10);
			if(RED==0)
			{
				month--;
				delay1ms(300);
				if(month==0) month=12;
				while(RED==0);
			}
		}
		datevalue=((month/10)<<4|(month%10));
		WriteSet1302(0x88,datevalue);
		delay1ms(1);		
		display_Month(month);
		Write_Address(0x0c);
		delay1ms(5);
		if(CANL==0) 
		{
			mode=0;
			Write_com(0x0c);
			break;
		}
		if(SET==0) break;
	}
	WriteSet1302(0x8e,0x80);
}
void dayset(void)				  //调日
{
	unsigned char datevalue,day;
	delay1ms(500);
	WriteSet1302(0x8e,0x00);
	datevalue=ReadSet1302(0x87);
	day=(((datevalue&0x70)>>4)*10 (datevalue&0x0f));
	while(1)
	{
		if(ADD==0)
		{
			delay1ms(10);
			if(ADD==0)
			{
				day  ;
				if(day>31) day=1;
				while(ADD==0);
			}
		}
		if(RED==0)
		{
			delay1ms(10);
			if(RED==0)
			{
				day--;
				delay1ms(300);
				if(day==0) day=31;
				while(RED==0);
			}
		}
		datevalue=((day/10)<<4|(day%10));
		WriteSet1302(0x86,datevalue);
		delay1ms(1);		
		display_Day(day);
		Write_Address(0x0f);
		delay1ms(5);
		if(CANL==0) 
		{
			mode=0;
			Write_com(0x0c);
			break;
		}
		if(SET==0) break;
	}
	WriteSet1302(0x8e,0x80);
}
void alarmhourset(void)	 //闹钟小时调整
{
	unsigned char value;
	value=houra;
    while(1)
    {
   		if(ADD==0)
		{
			delay1ms(20);
			if(ADD==0)
			{
				Write_com(0x0c);
				delay1ms(5);
				value  ;
				if(value>23) value=0;
				while(ADD==0);
			}
		}
		if(RED==0)
		{
			delay1ms(20);
			if(RED==0)
			{
				value--;
				if(value==0) value=23;
				while(RED==0);
			}
		}
		houra=value;
		display_houra(houra);
		gbdisplay(0x45);
		if(CANL==0) 
		{
			delay1ms(500);
			break;
		}
    }
}
void alarmminuteset(void)	//闹钟分钟调整
{
   while(1)
   {
   		if(ADD==0)
		{
			delay1ms(20);
			if(ADD==0)
			{
				minutea  ;
				if(minutea>59) minutea=0;
				while(ADD==0) ;
			}
		}
		if(RED==0)
		{
			delay1ms(20);
			if(RED==0)
			{
				minutea--;
				if(minutea==0) minutea=59;
				while(RED==0) ;
			}
		}
		display_minutea(minutea);
		gbdisplay(0x48);
		if(CANL==0)
		{
			delay1ms(500);
			break;
		}
   }
}
void TimeSet(void)	//时间调整函数
{
	display_Time();
	if(SET==0)
	{
		delay1ms(10);
		if(SET==0)
		{
			mode  ;
			delay1ms(20);
			switch(mode)
			{
				case(1):{gbdisplay(0x48);hourset();	delay1ms(500);}  break;
				case(2):{gbdisplay(0x4c);minuteset();delay1ms(500);} break;
				case(3):{gbdisplay(0x4f);secondset();delay1ms(500);} break;
				case(4):{gbdisplay(0x09);yearset();delay1ms(500);}   break;	
				case(5):{gbdisplay(0x0c);monthset();delay1ms(500);}  break;
				case(6):{gbdisplay(0x0f);dayset();delay1ms(500);}    break;
			}
			if(mode==7) mode=0;
		}
	}
}
 /***************显示温度模块********************/
unsigned char code displayexplain[]={"Digit thermometer"};
unsigned char code displayerror[]={"DS18B20 ERROR"};
unsigned char code displayerror1[]={"PLEASE CHECK "};
unsigned char code displaypart1[]={"WenDu:"};
unsigned char code displaypart2[]={"Cent"};
unsigned char flag;
/**********************操作DS18B20模块***************************/
sbit DQ=P1^3;
unsigned char time;
/**********************DS18B20初始化****************************/
bit IntDS18B20(void)
{
	bit temp;
	DQ=1;
	for(time=0;time<2;time  );
	DQ=0;
	for(time=0;time<200;time  );
	DQ=1;
	for(time=0;time<10;time  );
	temp=DQ;
	for(time=0;time<200;time  );
	return temp;
}
/**************************读DS18B20**********************/
 unsigned char ReadDS18B20(void)
 {
 	unsigned char i;
	unsigned char dat;
	for(i=0;i<8;i  )
	{
		DQ=1;
		_nop_();
		DQ=0;
		_nop_();
		DQ=1;
		for(time=0;time<2;time  );
		dat>>=1;
		if(DQ==1)
			dat=dat|0x80;
		else
			dat=dat|0x00;
		for(time=0;time<10;time  );
	}
	return dat;
 }
 /*********************向DS18B20写数据**************************/
 void WriteDS18B20(unsigned char date)
 {
 	unsigned char i;
	for(i=0;i<8;i  )
	{
		DQ=1;
		_nop_();
		DQ=0;
		DQ=date&0x01;
		for(time=0;time<10;time  );
		DQ=1;
		for(time=0;time<1;time  );
		date>>=1;				

	}
	for(time=0;time<4;time  );
 }
/*******************为读取温度做好准备************************/
void ReadyreadDS18B20(void)
{
	IntDS18B20();
	WriteDS18B20(0XCC);
	WriteDS18B20(0X44);
	delay1ms(200);
	IntDS18B20();
	WriteDS18B20(0XCC);
	WriteDS18B20(0XBE);
		
}
/*************在1602液晶上显示相关信息模块**********************/
/****************当未检测到DS18B20时显示信息模块****************/
 void Display_Error(void)
 {
 	unsigned char i=0;
	Write_Address(0x00);
	while(displayerror[i]!='\0')
	{
		Write_Date(displayerror[i]);
		i  ;
		delay1ms(100);
	}
	delay1ms(5);
	i=0;
	Write_Address(0x40);
	while(displayerror1[i]!='\0')
	{
		Write_Date(displayerror1[i]);
		i  ;
		delay1ms(100);
	}
	delay1ms(300) ;
 }
 /*************温度显示模块****************/
 void Display_Explain(void)
 {
 	unsigned char i=0;
	Write_Address(0x00);
	delay1ms(5);
	while(displayexplain[i]!='\0')
	{
		Write_Date(displayexplain[i]);
		i  ;
		delay1ms(5);
	}
	i=0;
	Write_Address(0x40);
	while(displaypart1[i]!='\0')
	{
		Write_Date(displaypart1[i]);
		i  ;
		delay1ms(5);
	}
	i=0;
	Write_Address(0x4C);
	while(displaypart2[i]!='\0')
	{
		Write_Date(displaypart2[i]);
		i  ;
		delay1ms(5);
	}
	Write_Address(0x49);
	Write_Date('.');
	delay1ms(5);
 }
 /*********************显示温度整数部分*************************/
 void Display_Integer(unsigned char x)
 {
 	unsigned char  i,j,k;
	i=x/100;
	j=x%100/10;
	k=x%10;
	Write_Address(0x46);
	if(flag==1) Write_Date('-');
	Write_Date(digit[i]);
	Write_Date(digit[j]);
	Write_Date(digit[k]);
	delay1ms(50) ;
 }
 /************显示温度小数部分*********************/
 void Display_Decimal(unsigned char x)
 {
 	Write_Address(0x4A);
	delay1ms(5);
	Write_Date(digit[x]);
	delay1ms(50);
 }
void displayovert(void)
{
	unsigned char i;
	Write_com(0x01);
	delay1ms(10);
	Write_Address(0x03);
	delay1ms(10);
	Write_Date('W');
   	Write_Date('A');
	Write_Date('R');
	Write_Date('N');
	Write_Date('I');
	Write_Date('N');
	Write_Date('G');
	Write_Date('!');
	Write_Address(0x40);
	while(overtemperature[i]!='\0')
	{
		Write_Date(overtemperature[i]);
		i  ;
		delay1ms(10);
	}
}
  /*******************温度主函数********************/
 void Temperature(void)
 {
 	unsigned char i;
	delay1ms(5);
	if(IntDS18B20()!=0)	Display_Error();
	else
	{
		delay1ms(1);
		Write_com(0x01);
		delay1ms(5);
		Display_Explain();
		for(length=50;length>0;length--)
		{
			for(i=0;i<6;i  )
			{
				flag=0;
				ReadyreadDS18B20();
				TL=ReadDS18B20();
				TH=ReadDS18B20();
				if((TH&0XF8)!=0X00)
				{
					flag=1;
					TL=~TL;
					TH=~TH;
					TL =1;
					if(TL>255) TH =1;
					TN=TH*16 TL/16;
					TD=(TL%16)*10/16;
				}
				TN=TH*16 TL/16;
				TD=(TL%16)*10/16;
				Display_Integer(TN);
				Display_Decimal(TD);
				delay1ms(10);
			}
			if(tempswitch==1)
			{
				if(TN>=Maxtemp) 
				{
					Write_Address(0x03);
					delay1ms(5);
					displayovert();
					while(1)
					{
						baojing(1);
						if(CANL==0) 
						{
							Write_com(0x01);
							delay1ms(5);
							break;
						}
					}
				}
			}
			if(CANL==0) break;
		}
	}
 }
 void tempset(void)
 {
 	if(ADD==0) 
	{
		delay1ms(10);
		if(ADD==0) 
		{
			Maxtemp  ;
			while(ADD==0);
		}
	}
	if(RED==0) 
	{
		delay1ms(10);
		if(RED==0) 
		{
			Maxtemp--;
			while(RED==0);
		}
	}
 }
 void Maxtempset(void)	  //高温报警设置
 {
	Write_com(0x01);
	delay1ms(10);
	Write_Address(0x03);
	delay1ms(10);
	Write_Date('T');
	Write_Date('E');
	Write_Date('M');
	Write_Date('P');
	Write_Address(0x09);
	Write_Date('S');
	Write_Date('E');
	Write_Date('T');
	Write_Address(0x40);
	Write_Date('M');
	Write_Date('A');
	Write_Date('X');
	Write_Date(':');
	while(1)
	{
		if(SET==0)
		{
			delay1ms(20);
			if(SET==0)
			{
				Write_Address(0x4e);
				Write_com(0x0f);
				while(1)
				{
					if(ADD==0)
					{
						delay1ms(20);
						if(ADD==0)
						{
							Write_Address(0x4b);
							delay1ms(5);
							Write_Date('O');
							Write_Date('N');
							Write_Date(' ');
							tempswitch=1;
						}
					}
					if(RED==0)
					{
						delay1ms(20);
						if(RED==0)
						{
							Write_Address(0x4b);
							Write_Date('O');
							Write_Date('F');
							Write_Date('F');
							tempswitch=0;
						}
					}
					if(CANL==0) 
					{
						delay1ms(500);
						break;
					}
				}
			}
		}
		if(tempswitch==1)
		{
			Write_Address(0x4b);
			Write_Date('O');
			Write_Date('N');
			Write_Date(' ');
			tempset();		
			displaymaxt(Maxtemp);
			if(CANL==0) 
			{	
				Write_com(0x01);
				displaymainpart();
				break;
			}
		}
		if(tempswitch==0)
		{
			Write_com(0x0c);
			Write_Address(0x4b);
			Write_Date('O');
			Write_Date('F');
			Write_Date('F');
		}
		if(CANL==0) 
		{
			Write_com(0x01);
			displaymainpart();
			break;
		}
	}
 }
 void alarmswitchset(void)
 {
 	while(1)
	{
		if(ADD==0)
		{
			delay1ms(100);
			if(ADD==0)
			{
				alarmmode=1;
				Write_Address(0x4c);
				Write_Date('O');
				Write_Date('N');
				Write_Date(' ');
			}
		}
		if(RED==0)
		{
			alarmmode=0;
			Write_Address(0x4c);
			Write_Date('O');
			Write_Date('F');
			Write_Date('F');
		}
		if(CANL==0)
		{
			delay1ms(500);
			break;
		}
	}
 }
 /**************** 设置模块 ******************/
 void Set(void)
 {
	if(SET==0)
	{
		delay1ms(10);
		if(SET==0)
		{
		 	Write_Address(0x40);
			Write_Date('T');
			Write_com(0x0f);
			delay1ms(1000);
			Write_com(0x0c);
			while(1)
			{ 
				TimeSet();
				if(ADD==0)
			    {
					delay1ms(20);
					if(ADD==0)
					{
						Write_com(0x01);
						Write_Address(0x00);
						delay1ms(5);
						Write_Date('S');
						delay1ms(10);
						Maxtempset();	
					}
				}
				if(RED==0)
				{
					delay1ms(20);
					if(RED==0)
					{
						Write_com(0x01);
						delay1ms(5);
						Write_Address(0x02);
						Write_Date('A');
						Write_Date('L');
						Write_Date('A');
						Write_Date('R');
						Write_Date('M');
						Write_Address(0x09);
						Write_Date('S');
						Write_Date('E');
						Write_Date('T');
						Write_Address(0x46);
						Write_Date('-');
						display_houra(houra);
						display_minutea(minutea);
						if(alarmmode==1)
						{
							Write_Address(0x4c);
							Write_Date('O');
							Write_Date('N');
							Write_Date(' ');
						}
						if(alarmmode==0)
						{
							Write_Address(0x4c);
							Write_Date('O');
							Write_Date('F');
							Write_Date('F');							
						}
						while(1)
						{
							if(SET==0)
							{
								delay1ms(100);
								if(SET==0)
								{
								   amode  ;
								   switch(amode)
								   {
										case(1):{gbdisplay(0x45);alarmhourset();Write_com(0x0c);delay1ms(500);} break;
										case(2):{gbdisplay(0x48);alarmminuteset();Write_com(0x0c);delay1ms(500);} break;		
										case(3):{gbdisplay(0x4c);alarmswitchset();Write_com(0x0c);delay1ms(500);} break;
								   }
								   if(amode==4) amode=0;
								}	
							}
							if(CANL==0) 
							{
								Write_com(0x01);
								delay1ms(5);
								displaymainpart();
								break;
							}
						}
					}
				}
				if(CANL==0)
				{
					Write_Address(0x40);
					Write_Date(' ');
					Write_com(0x0c);
					break;
				}
			}
		}
			
	}
 }
/***************主函数**********************/
void main()
{
	IE=0X82;  //打开定时中断
	TMOD=0X01;	//选择定时器0工作在方式1
	TR0=0;		//启动定时器0
	IntDS1302();   //初始化DS1302
	delay1ms(1);
	Lcd_Int();		//1602液晶初始化
	delay1ms(2);
	displaystar();	 //显示欢迎界面
	displaymainpart(); //显示主要部分（不变化）
	while(1)
	{
		display_Time( );
		Set( );
		if(ADD==0)
		{
			Write_com(0x01);
			delay1ms(5);
			Temperature();
			Write_com(0x01);
			displaymainpart();
		}
		if((hours==houra)&&(minutes==minutea)&&(seconds==0))
		{
			if(alarmmode==1)
			{
				Write_com(0x01);
				delay1ms(5);
				Write_Address(0x03);
				Write_Date('T');
				Write_Date('I');
				Write_Date('M');
				Write_Date('E');
				Write_Address(0x08);
				Write_Date('U');
				Write_Date('P');
				Write_Date('!');
				delay1ms(5);
				while(1)
				{
					baojing(1);
					if(CANL==0)
					{
						Write_com(0x01);
						delay1ms(5);
						displaymainpart();
						break;
					}
				}
			}
		}
	}  
	
}