📄 ds1302.htm
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0036)http://www.daxia.com/list_1712.shtml -->
<HTML><HEAD><TITLE>大虾电子－原创：DS1302源程序(变成浪子)</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312"><LINK
href="DS1302源程序.files/style.css" rel=stylesheet>
<META content="MSHTML 6.00.2900.3132" name=GENERATOR></HEAD>
<BODY>
<DIV align=center>
<CENTER>
<SCRIPT type=text/javascript><!--
google_ad_client = "pub-1260019700816245";
google_alternate_ad_url = "http://www.daxia.com/product/dx58";
google_ad_width = 728;
google_ad_height = 90;
google_ad_format = "728x90_as";
google_color_bg = "efefef";
google_ad_type = "text";
google_ad_channel ="";
//--></SCRIPT>
<SCRIPT src="DS1302源程序.files/show_ads.js" type=text/javascript>
</SCRIPT>
</CENTER></DIV>
<DIV align=center>
<CENTER>
<TABLE cellSpacing=0 borderColorDark=#ffffff cellPadding=0 width="97%"
borderColorLight=#000000 border=1>
<TBODY>
<TR>
<TD width="100%" bgColor=#d0d0d0>
<P align=center>文章编号:1712----加入日期:2005-4-5 </P></TD></TR>
<TR>
<TD width="100%">
<P align=right><A href="javascript:self.close()">『关闭窗口』</A></P></TD></TR>
<TR>
<TD width="100%">
<P align=center><B>原创：DS1302源程序(变成浪子)</B></P></TD></TR>
<TR>
<TD width="100%">
<BLOCKQUOTE><BR>//mega16 7.3728MHz石英晶体 iccavr6.31a<BR>//相关定义：<BR>#define
uint unsigned int<BR>#define uchar unsigned char<BR>#define DS1302_RST 0
//pc0<BR>#define DS1302_SDA 1 //pc1<BR>#define DS1302_SCLK 6
//pc6<BR>//ds1302相关<BR>//DS1302_RST=1<BR>#define Set_DS1302_RST()
PORTC|=1<<DS1302_RST<BR>//DS1302_RST=0<BR>#define Clr_DS1302_RST()
PORTC&=~(1<<DS1302_RST)<BR>//DS1302_SDA=1<BR>#define
Set_DS1302_SDA() PORTC|=1<<DS1302_SDA<BR>//DS1302_SDA=0<BR>#define
Clr_DS1302_SDA()
PORTC&=~(1<<DS1302_SDA)<BR>//DS1302_SCLK=1<BR>#define
Set_DS1302_SCLK()
PORTC|=1<<DS1302_SCLK<BR>//DS1302_SCLK=0<BR>#define
Clr_DS1302_SCLK()
PORTC&=~(1<<DS1302_SCLK)<BR>//DS1302的SDA置为输出脚<BR>#define
Set_DS1302_DDRSDA()
DDRC|=1<<DS1302_SDA<BR>//DS1302的SDA置为输入脚<BR>#define
Clr_DS1302_DDRSDA() DDRC&=~(1<<DS1302_SDA)<BR>#define
DS1302_SEC_Reg 0x80<BR>#define DS1302_MIN_Reg 0x82<BR>#define
DS1302_HR_Reg 0x84<BR>#define DS1302_DATE_Reg 0x86<BR>#define
DS1302_MONTH_Reg 0x88<BR>#define DS1302_DAY_Reg 0x8a<BR>#define
DS1302_YEAR_Reg 0x8c<BR>#define DS1302_CONTROL_Reg 0x8e<BR>#define
DS1302_CHARGER_Reg 0x90<BR>#define DS1302_CLKBURST_Reg
0xbe<BR>//全局变量<BR>//为了方便，我把个位和十位分开了<BR>uchar year1=0x88;<BR>uchar
year0=0x88;<BR>uchar month1=0x88;<BR>uchar month0=0x88;<BR>uchar
date0=0x88;<BR>uchar date1=0x88;<BR>uchar day=0x88;<BR>uchar
hour1=0x88;<BR>uchar hour0=0x88;<BR>uchar minute1=0x88;<BR>uchar
minute0=0x88;<BR>uchar second1=0x88;<BR>uchar
second0=0x88;<BR>//自程序开始<BR>void DS1302_Write(uchar reg,uchar
data)<BR>{<BR>uchar
i;<BR>Set_DS1302_DDRSDA();<BR>Clr_DS1302_RST();<BR>asm("nop");<BR>asm("nop");<BR>Clr_DS1302_SCLK();<BR>asm("nop");<BR>asm("nop");<BR>Set_DS1302_RST();<BR>asm("nop");<BR>asm("nop");<BR>for(i=8;i>0;i--)<BR>{
<BR>if(reg&0x01) Set_DS1302_SDA();<BR>else
Clr_DS1302_SDA();<BR>asm("nop");<BR>asm("nop");<BR>Set_DS1302_SCLK();
<BR>asm("nop");<BR>asm("nop");<BR>Clr_DS1302_SCLK();<BR>asm("nop");<BR>asm("nop");<BR>reg>>=1;<BR>}<BR>for(i=8;i>0;i--)<BR>{
<BR>if(data&0x01) Set_DS1302_SDA();<BR>else
Clr_DS1302_SDA();<BR>asm("nop");<BR>asm("nop");<BR>Set_DS1302_SCLK();<BR>asm("nop");<BR>asm("nop");<BR>Clr_DS1302_SCLK();<BR>asm("nop");<BR>asm("nop");<BR>data>>=1;<BR>}<BR>Clr_DS1302_RST();<BR>asm("nop");<BR>asm("nop");<BR>Clr_DS1302_DDRSDA();<BR>}<BR>uchar
DS1302_Read(uchar reg)<BR>{<BR>uchar
data=0,i;<BR>reg+=1;//读标志<BR>Set_DS1302_DDRSDA();<BR>Clr_DS1302_RST();<BR>asm("nop");<BR>asm("nop");<BR>Clr_DS1302_SCLK();<BR>asm("nop");<BR>asm("nop");<BR>Set_DS1302_RST();<BR>asm("nop");<BR>asm("nop");<BR>for(i=8;i>0;i--)<BR>{<BR><BR>if(reg&0x01)
Set_DS1302_SDA();<BR>else
Clr_DS1302_SDA();<BR>asm("nop");<BR>asm("nop");<BR>Set_DS1302_SCLK();
<BR>asm("nop");<BR>asm("nop");
<BR>Clr_DS1302_SCLK();<BR>asm("nop");<BR>asm("nop");<BR>reg>>=1;<BR>}<BR>Clr_DS1302_DDRSDA();<BR>for(i=8;i>0;i--)<BR>{
<BR>data>>=1;<BR>if((PINC&(1<<DS1302_SDA))==(1<<DS1302_SDA))
data|=0x80;<BR>Set_DS1302_SCLK();<BR>asm("nop");<BR>asm("nop");<BR>Clr_DS1302_SCLK();<BR>asm("nop");<BR>asm("nop");
<BR>}<BR>Clr_DS1302_RST();<BR>asm("nop");<BR>asm("nop");<BR>return(data);<BR>}<BR>uchar
Check_DS1302(void)<BR>{<BR> DS1302_Write(DS1302_CONTROL_Reg,0x80);<BR> if(DS1302_Read(DS1302_CONTROL_Reg)==0x80)
return 1;<BR> return 0;<BR>}<BR>void
DS1302_Init(void)<BR>{<BR>DS1302_Write(DS1302_CONTROL_Reg,0x00);//关闭写保护
<BR>DS1302_Write(DS1302_SEC_Reg,0x80);//暂停
<BR>DS1302_Write(DS1302_CHARGER_Reg,0xa9);//涓流充电<BR>DS1302_Write(DS1302_YEAR_Reg,0x04);
//年<BR>DS1302_Write(DS1302_MONTH_Reg,0x12);
//月<BR>DS1302_Write(DS1302_DATE_Reg,0x09);
//日<BR>DS1302_Write(DS1302_DAY_Reg,0x04);
//周<BR>DS1302_Write(DS1302_HR_Reg,0x10);
//时<BR>DS1302_Write(DS1302_MIN_Reg,0x25);
//分<BR>DS1302_Write(DS1302_SEC_Reg,0x00);
//秒<BR><BR>DS1302_Write(DS1302_CONTROL_Reg,0x80);//打开写保护<BR>}<BR>void
ReadTime(void)<BR>{<BR>uchar
data;<BR>data=DS1302_Read(DS1302_YEAR_Reg);//年<BR>year0=data&0x0f;<BR>year1=data>>4;<BR>data=DS1302_Read(DS1302_MONTH_Reg);//月<BR>month0=data&0x0f;<BR>month1=(data>>4)&0x01;<BR>data=DS1302_Read(DS1302_DATE_Reg);//日<BR>date0=data&0x0f;<BR>date1=(data>>4)&0x03;<BR>data=DS1302_Read(DS1302_DAY_Reg);//周<BR>day=data&0x07;<BR>data=DS1302_Read(DS1302_HR_Reg);//时<BR>hour0=data&0x0f;<BR>hour1=(data>>4)&0x03;<BR>data=DS1302_Read(DS1302_MIN_Reg);//分<BR>minute0=data&0x0f;<BR>minute1=(data>>4)&0x07;<BR>data=DS1302_Read(DS1302_SEC_Reg);//秒<BR>second0=data&0x0f;<BR>second1=(data>>4)&0x07;<BR>}
<BR><BR>(文章推荐人：低手) <BR><BR></BLOCKQUOTE></TD></TR>
<TR>
<TD width="100%">
<P align=center> </P></TD></TR></TBODY></TABLE><A
href="http://www.daxia.com/bbs" target=_blank>返回大虾论坛</A> <A
href="http://www.daxia.com/" target=_blank>返回首页</A>
<SCRIPT language=JavaScript src="DS1302源程序.files/stat.htm"
charset=gb2312></SCRIPT>
</CENTER></DIV></BODY></HTML>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -