⭐ 欢迎来到虫虫下载站！ | 📦 资源下载 📁 资源专辑 ℹ️ 关于我们
⭐ 虫虫下载站
📤 上传资源

📄 twi读写时钟芯片pcf8583范例 (ourdev_cn 我们的电子开发社区).mht

📁 一个实时时钟的芯片
💻 MHT
📖 第 1 页 / 共 5 页
字号:
🔍
12345 
=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;//return&nbsp;temp;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;//&nbsp;S=
etNoAck();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sto=
p();//I2C=CD=A3=D6=B9=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;clo=
se_twi();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ret=
urn&nbsp;temp;=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} <BR>extern&nbsp;struct=20
      <BR>&nbsp;&nbsp;{ <BR>&nbsp;&nbsp;&nbsp;&nbsp;struct=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;year;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;&nbsp;month=
;=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;day; =

      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}data;=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;struct=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;hour;=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;Minute;=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;Second;=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}time;=20
      <BR>&nbsp;&nbsp;}dat_time;//,dat_time1=20
      <BR>extern&nbsp;unsigned&nbsp;char&nbsp;table&nbsp;[16];=20
      =
<BR>unsigned&nbsp;char&nbsp;tablea&nbsp;[16]=3D{0,1,2,3,4,5,6,7,8,9,10,11=
,12,13,14,15};=20
      =
<BR>__root&nbsp;unsigned&nbsp;&nbsp;__eeprom&nbsp;char&nbsp;tabled[16];=20
      =
<BR>unsigned&nbsp;char&nbsp;readram_eep(&nbsp;&nbsp;&nbsp;unsigned&nbsp;c=
har&nbsp;address,&nbsp;unsigned&nbsp;char&nbsp;&nbsp;num,&nbsp;unsigned&n=
bsp;&nbsp;char&nbsp;&nbsp;__eeprom&nbsp;*ppc)=20
      =
<BR>//unsigned&nbsp;char&nbsp;i2c_Read(unsigned&nbsp;char&nbsp;*Wdata,uns=
igned&nbsp;char&nbsp;RomAddress&nbsp;,unsigned&nbsp;char&nbsp;twx)=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;i;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;uns=
igned&nbsp;char&nbsp;temp=3D1;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sta=
rt();//I2C=C6=F4=B6=AF=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wai=
t();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&=
nbsp;(TestAck()!=3DSTART)&nbsp;return&nbsp;0;//ACK&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wri=
te8Bit(wr_device_add);//=D0=B4I2C=B4=D3=C6=F7=BC=FE=B5=D8=D6=B7=BA=CD=D0=B4=
=B7=BD=CA=BD=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wai=
t();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&=
nbsp;(TestAck()!=3DMT_SLA_ACK)&nbsp;return&nbsp;0;//ACK=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wri=
te8Bit(address);//=D0=B424C02=B5=C4ROM=B5=D8=D6=B7=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wai=
t();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&=
nbsp;(TestAck()!=3DMT_DATA_ACK)&nbsp;return&nbsp;0;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;Re_Start();//I2C=D6=D8=D0=C2=C6=F4=B6=AF=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wai=
t();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&=
nbsp;(TestAck()!=3DRE_START)&nbsp;&nbsp;return&nbsp;0;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wri=
te8Bit(rd_device_add);//=D0=B4I2C=B4=D3=C6=F7=BC=FE=B5=D8=D6=B7=BA=CD=B6=C1=
=B7=BD=CA=BD=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wai=
t();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(=
TestAck()!=3DMR_SLA_ACK)&nbsp;&nbsp;return&nbsp;0;//ACK=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set=
Ack();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for=
(i=3D0;i&lt;num;i++)=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;{=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;Twi();//=C6=F4=B6=AF=D6=F7I2C=B6=C1=B7=BD=CA=BD=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;Wait();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;if(TestAck()!=3DMR_DATA_NOACK)&nbsp;return&nbsp;0;//ACK&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;ppc[i]=3DTWDR;//=B6=C1=C8=A1I2C=BD=D3=CA=D5=CA=FD=BE=
=DD=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;}=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set=
NoAck();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sto=
p();//I2C=CD=A3=D6=B9=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;close_twi();=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ret=
urn&nbsp;temp;=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}=20
      <BR>void&nbsp;read_dat_time(void) <BR>&nbsp;&nbsp;{=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;readram(&nbsp;0,&nbsp;12,table); =

      <BR>&nbsp;&nbsp;&nbsp;//&nbsp;char&nbsp;n;=20
      =
<BR>&nbsp;&nbsp;&nbsp;//&nbsp;for(n=3D0;n&lt;12;n++)&nbsp;readram_one(&nb=
sp;&nbsp;&nbsp;unsigned&nbsp;char&nbsp;address)=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;//&nbsp;table[2]=3D&nbsp;readram_one(2);=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(table[2]!=3D0xff)=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;a=3Dtable[2=
]&amp;0x0f,b=3D((table[2]&amp;0x70)&gt;&gt;4)*10;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dat_time.time.Second=3D=
a+b;//=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;if(table[3]!=3D0xff)=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;a=3Dtable[3=
]&amp;0x0f,b=3D((table[3]&amp;0x70)&gt;&gt;4)*10;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dat_time.time.Minute=3D=
a+b;//=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;if(table[4]!=3D0xff)=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;a=3Dtable[4=
]&amp;0x0f,b=3D((table[4]&amp;0x30)&gt;&gt;4)*10;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dat_time.time.h=
our=3Da+b;//=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;if(table[5]!=3D0xff)=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;a=3Dtable[5=
]&amp;0x0f,b=3D((table[5]&amp;0x30)&gt;&gt;4)*10;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dat_time.data.d=
ay=3Da+b;//=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;if(table[6]!=3D0xff)=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char&nbsp;a=3Dtable[6]&amp;=
0x0f,b=3D((table[6]&amp;0x10)&gt;&gt;4)*10;=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dat_time.data.month=3Da+b;/=
/=20
      =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dat_time.data.year=3Dtable[=
5]&gt;&gt;6;=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;//table[11]=3Dtest_slaveadd();=20
      <BR>&nbsp;&nbsp;} <BR><BR>void&nbsp;write_dat_time(void) =
<BR>&nbsp;&nbsp;{=20
      <BR>&nbsp;&nbsp;&nbsp;//&nbsp;twi_cushihua();=20
      <BR>&nbsp;//&nbsp;&nbsp;&nbsp;while(&nbsp;i2c_Write(0,0&nbsp;));=20
      <BR>&nbsp;&nbsp;//&nbsp;&nbsp;while&nbsp;(i2c_Write(10,3&nbsp;));=20
      <BR>#if&nbsp;cpu_clok_8M <BR>&nbsp;&nbsp;&nbsp;&nbsp;TWBR=3D2;=20
      <BR>#elif&nbsp;cpu_clok_20M =
<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;TWBR=3D6;=20
      <BR>&nbsp;&nbsp;&nbsp;//&nbsp;TWSR=3D4; <BR>#endif=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;delay_ms(10);=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;//table[2]=3D&nbsp;readram_one(2);=20
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;wr_ram(0,&nbsp;16,tablea);=20
      <BR>&nbsp;&nbsp;//&nbsp;&nbsp;table[11]=3Dtest_slaveadd();=20
      <BR>&nbsp;&nbsp;//&nbsp;&nbsp;delay_ms(1);=20
      =
<BR>&nbsp;&nbsp;//&nbsp;&nbsp;readram_eep(&nbsp;0,&nbsp;12,tabled);=20
      <BR>&nbsp;&nbsp;} <BR></FONT></TD></TR>
  <TR>
    <TD class=3Df03=20
    style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: medium none; BORDER-BOTTOM: #ffffff 0.5pt solid"=20
    vAlign=3Dbottom =
bgColor=3D#d1d9e2>__________________________<BR>AVR=B5=C4=CC=EC=CC=C3 =
</TD></TR>
  <TR>
    <TD class=3Df03=20
    style=3D"BORDER-RIGHT: #ffffff 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: #bbbbbb 0.5pt solid; BORDER-BOTTOM: #bbbbbb 0.5pt solid"=20
    align=3Dleft width=3D"19%" bgColor=3D#d1d9e2><IMG height=3D1=20
      src=3D"http://www.ourdev.cn/bbs/images/pixel.gif"=20
      width=3D7>2007-11-12,11:13:06 </TD>
    <TD class=3Df03=20
    style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: medium none; BORDER-BOTTOM: #bbbbbb 0.5pt solid"=20
    vAlign=3Dtop width=3D"81%" bgColor=3D#d1d9e2 ?>
      <TABLE width=3D"100%">
        <TBODY>
        <TR>
          <TD align=3Dleft><IMG height=3D1=20
            src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" width=3D7> =
<A=20
            class=3Dtt4=20
            =
href=3D"http://www.ourdev.cn/bbs/user_information.jsp?user_name=3Dhusheng=
hong"=20
            target=3D_blank>=D7=CA=C1=CF</A> <IMG height=3D1=20
            src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" width=3D7> =
<A=20
            class=3Dtt4 =
href=3D"mailto:tdlhsh@sian.com.cn">=D3=CA=BC=FE</A> <IMG height=3D1=20
            src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" width=3D7> =
</TD>
          <TD align=3Dright><IMG height=3D1=20
            src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" width=3D2> =
<IMG=20
            height=3D1 src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" =
width=3D2>=20
            <IMG height=3D1 =
src=3D"http://www.ourdev.cn/bbs/images/pixel.gif"=20
            width=3D2> <IMG height=3D1=20
            src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" width=3D2> =
<IMG=20
            height=3D1 src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" =
width=3D2>=20
            <IMG height=3D1 =
src=3D"http://www.ourdev.cn/bbs/images/pixel.gif"=20
            width=3D2> <IMG height=3D1=20
            src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" width=3D2> =
<IMG=20
            height=3D1 src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" =
width=3D2>=20
            <IMG height=3D1 =
src=3D"http://www.ourdev.cn/bbs/images/pixel.gif"=20
            width=3D2> <SPAN class=3Df01>=B1=E0=BC=AD</SPAN> <IMG =
height=3D1=20
            src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" width=3D7> =
<SPAN=20
            class=3Df01>=C9=BE=B3=FD</SPAN> <IMG height=3D1=20
            src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" width=3D7> =
<IMG=20
            height=3D1 src=3D"http://www.ourdev.cn/bbs/images/pixel.gif" =
width=3D7>=20
        </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<TABLE style=3D"TABLE-LAYOUT: fixed; WORD-BREAK: break-all" =
cellSpacing=3D0=20
cellPadding=3D6 width=3D"100%" border=3D0>
  <TBODY>
  <TR>
    <TD class=3Df03=20
    style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: #bbbbbb 0.5pt solid; BORDER-BOTTOM: #bbbbbb 0.5pt solid"=20
    vAlign=3Dtop align=3Dleft width=3D"19%" bgColor=3D#e8e8e8 =
rowSpan=3D2>=A1=BE1=C2=A5=A1=BF <FONT=20
      color=3D#000000>hushenghong </FONT><BR><IMG height=3D89=20
      =
src=3D"http://www.ourdev.cn/bbs/bbs_upload19801/files_usericon/armok01185=
492.JPG"=20
      width=3D119><BR>=BB=FD=B7=D6=A3=BA<FONT =
12345

⌨️ 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 + -