#ifndef	__DS1302_H__
#define __DS1302_H__

#define HOU_MIN		0
#define MIN_SECOND	1
#define MON_DAY		2
#define YEAR_S		3
#define MON_DAY_HOU_MIN 4
#define SET_HOU_MIN 5
#define MAX_STATE	6

#define AM(X)	X
#define PM(X)	(X+12)            	 	//转成24小时制
#define DS1302_SECOND	0x80          	//秒寄存器      
#define DS1302_MINUTE	0x82          	//分寄存器
#define DS1302_HOUR		0x84 			//时
#define DS1302_WEEK		0x8A      		//周
#define DS1302_DAY		0x86			//日
#define DS1302_MONTH	0x88			//月
#define DS1302_YEAR		0x8C			//年
#define DS1302_READ		0x01		  	//读操作，因为读的时候地址要加1，使最低位为1
#define DS1302_RAM(X)	(0xC0+(X)*2)   	//用于计算 DS1302_RAM 地址的宏 

sbit T_CLK=P1^2;
sbit T_IO =P1^1;
sbit T_RST=P1^0;
sbit ACC0=ACC^0;
sbit ACC7=ACC^7;

typedef struct __SYSTEMTIME__
{
	unsigned char Second;
	unsigned char Minute;
	unsigned char Hour;
	unsigned char Week;
	unsigned char Day;
	unsigned char Month;
	unsigned char Year;
	unsigned char DateString[9];
	unsigned char TimeString[9];
}SYSTEMTIME;	//定义的时间类型

//********DS1302读写程序***************
/******************************************************************** 
 函 数 名：RTInputByte()
 功    能：实时时钟写入一字节
 说    明：往DS1302写入1Byte数据 (内部函数)
 入口参数：d 写入的数据 
 返 回 值：无  
 ***********************************************************************/
void RTInputByte(unsigned char d) 
{ 
    unsigned char i;
    ACC = d;
    for(i=8; i>0; i--)
    {
        T_IO = ACC0;           //相当于汇编中的 RRC
        T_CLK = 1;
        T_CLK = 0;
        ACC = ACC >> 1; 
    } 
}
/******************************************************************** 
 函 数 名：RTOutputByte()
 功    能：实时时钟读取一字节
 说    明：从DS1302读取1Byte数据 (内部函数)
 入口参数：无  
 返 回 值：ACC
 设    计：zhaojunjie           日    期：2002-03-19
 修    改：                     日    期： 
***********************************************************************/
unsigned char RTOutputByte(void) 
{ 
    unsigned char i;
    for(i=8; i>0; i--)
    {
        ACC = ACC >>1;         //相当于汇编中的 RRC
        ACC7 = T_IO;
        T_CLK = 1;
        T_CLK = 0;
    } 
    return(ACC); 
}
/******************************************************************** 
 函 数 名：Write1302()
 功    能：往DS1302写入数据
 说    明：先写地址，后写命令/数据 (内部函数)
 调    用：RTInputByte() , RTOutputByte()
 入口参数：ucAddr: DS1302地址, ucData: 要写的数据
 返 回 值：无
 ***********************************************************************/
void Write1302(unsigned char ucAddr, unsigned char ucDa)
{
    T_RST = 0;
    T_CLK = 0;
    T_RST = 1;
    RTInputByte(ucAddr);       // 地址，命令 
    RTInputByte(ucDa);         // 写1Byte数据
    T_CLK = 1;
    T_RST = 0;
}
/******************************************************************** 
 函 数 名：Read1302()
 功    能：读取DS1302某地址的数据
 说    明：先写地址，后读命令/数据 (内部函数)
 调    用：RTInputByte() , RTOutputByte()
 入口参数：ucAddr: DS1302地址
 返 回 值：ucData :读取的数据
***********************************************************************/
unsigned char Read1302(unsigned char ucAddr)
{
    unsigned char ucData;
    T_RST = 0;
    T_CLK = 0;
    T_RST = 1;
    RTInputByte(ucAddr);             // 地址，命令 
    ucData = RTOutputByte();         // 读1Byte数据
    T_CLK = 1;
    T_RST = 0;
    return(ucData);
}
/******************************************************************** 
 函 数 名：Set1302()
 功    能：设置初始时间
 说    明：先写地址，后读命令/数据(寄存器多字节方式)
 调    用：Write1302()
 入口参数：pClock: 设置时钟数据地址 格式为: 秒 分 时 日 月 星期 年
                               7Byte (BCD码)1B 1B 1B 1B 1B  1B  1B
 返 回 值：无
***********************************************************************/
void Set1302(unsigned char *pClock) 
{
    unsigned char i;
    unsigned char ucAddr = 0x80; 
    Write1302(0x8e,0x00);           // 控制命令,WP=0,写操作
    for(i =7; i>0; i--)
    { 
        Write1302(ucAddr,*pClock);  // 秒 分 时 日 月 星期 年
        pClock++;
        ucAddr +=2;
    }
    Write1302(0x8e,0x80);           // 控制命令,WP=1,写保护
}

/***************************************************************************/
void DS1302_GetTime(SYSTEMTIME *Time)
{
#if 0
	unsigned char Address;

	Address = DS1302_SECOND|DS1302_READ; 
	Time->Second = Read1302(Address)/16*10+Read1302(Address|DS1302_READ)%16; //转换成10进制的秒

	Address = DS1302_MINUTE|DS1302_READ; 
	Time->Minute = Read1302(Address)/16*10+Read1302(Address|DS1302_READ)%16;

	Address = DS1302_HOUR|DS1302_READ; 
	Time->Hour = Read1302(Address)/16*10+Read1302(Address|DS1302_READ)%16;

	Address = DS1302_WEEK|DS1302_READ; 
	Time->Week = Read1302(Address)/16*10+Read1302(Address|DS1302_READ)%16;

	Address = DS1302_DAY|DS1302_READ; 
	Time->Day = Read1302(Address)/16*10+Read1302(Address|DS1302_READ)%16;

	Address = DS1302_MONTH|DS1302_READ; 
	Time->Month = Read1302(Address)/16*10+Read1302(Address|DS1302_READ)%16;

	Address = DS1302_YEAR|DS1302_READ; 
	Time->Year = Read1302(Address)/16*10+Read1302(Address|DS1302_READ)%16;
#else
	Time->Second = Read1302(DS1302_SECOND|DS1302_READ); 					//不转换成10进制的秒
	Time->Minute = Read1302(DS1302_MINUTE|DS1302_READ);
	Time->Hour = Read1302(DS1302_HOUR|DS1302_READ);
	Time->Week = Read1302(DS1302_WEEK|DS1302_READ);
	Time->Day = Read1302(DS1302_DAY|DS1302_READ);
	Time->Month = Read1302(DS1302_MONTH|DS1302_READ);
	Time->Year = Read1302(DS1302_YEAR|DS1302_READ);
#endif
}
/*
void DS1302_PutTime(SYSTEMTIME *Time)
{
	unsigned char Address;
	Write1302(0x8e,0x00);//允许写操作	

	Address = DS1302_SECOND; 
	Write1302(Address,Time->Second/10*16+Time->Second%10);			//转换成16进制的秒

	Address = DS1302_MINUTE; 
 	Write1302(Address,Time->Minute/10*16+Time->Minute%10);

	Address = DS1302_HOUR; 
 	Write1302(Address,Time->Hour/10*16+Time->Hour%10);

	Address = DS1302_WEEK; 
 	Write1302(Address,Time->Week/10*16+Time->Week%10);

	Address = DS1302_DAY; 
 	Write1302(Address,Time->Day/10*16+Time->Day%10);

	Address = DS1302_MONTH; 
 	Write1302(Address,Time->Month/10*16+Time->Month%10);

	Address = DS1302_YEAR; 
 	Write1302(Address,Time->Year/10*16+Time->Year%10);

  	Write1302(0x8e,0x80);//写保护，禁止写操作  
}
void DateToStr(SYSTEMTIME *Time)
{
	Time->DateString[0] = Time->Year/10 + '0'; //数字类型转化为字符类型
	Time->DateString[1] = Time->Year%10 + '0';
	Time->DateString[2] = '-';
	Time->DateString[3] = Time->Month/10 + '0';
	Time->DateString[4] = Time->Month%10 + '0';
	Time->DateString[5] = '-';
	Time->DateString[6] = Time->Day/10 + '0';
	Time->DateString[7] = Time->Day%10 + '0';
	Time->DateString[8] = '\0';
}

void TimeToStr(SYSTEMTIME *Time)
{
	Time->TimeString[0] = Time->Hour/10 + '0'; //数字类型转化为字符类型
	Time->TimeString[1] = Time->Hour%10 + '0';
	Time->TimeString[2] = ':';
	Time->TimeString[3] = Time->Minute/10 + '0';
	Time->TimeString[4] = Time->Minute%10 + '0';
	Time->TimeString[5] = ':';
	Time->TimeString[6] = Time->Second/10 + '0';
	Time->TimeString[7] = Time->Second%10 + '0';
	Time->DateString[8] = '\0';
}
*/

#endif