📄 24c02储存开机次数实验.htm
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<TD align=left width=255 height=24><A
href="http://www.51c51.com/TEST/XL1000/xl1000622.htm"><FONT
color=#000000>实验<SPAN lang=EN-US>22
串行双向通信实验 </SPAN></FONT></A></TD></TR>
<TR>
<TD align=left width=256 height=24><A
href="http://www.51c51.com/TEST/XL1000/xl100041.htm"><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><FONT
color=#000000>4．1<SPAN style="mso-spacerun: yes">
</SPAN>ISP 下载部份介绍 </FONT></SPAN></A></TD>
<TD align=left width=257 height=24>
<P class=MsoNormal
style="LINE-HEIGHT: 15pt; mso-line-height-rule: exactly"><FONT
color=#000000><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><O:P></O:P></SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><A
href="http://www.51c51.com/TEST/XL1000/xl100068.htm">实验<SPAN
lang=EN-US>8 74LS14反向器实验 </SPAN></A></SPAN></FONT></P></TD>
<TD align=left width=255 height=24><FONT color=#000000><A
href="http://www.51c51.com/TEST/XL1000/xl1000623.htm"><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">实验<SPAN
lang=EN-US>23 </SPAN></SPAN></A><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><A
href="http://www.51c51.com/TEST/XL1000/xl1000623.htm">综合实验
<SPAN
lang=EN-US>18B20数字温度显示系统 </SPAN></A></SPAN></FONT></TD></TR>
<TR>
<TD align=left width=256 height=24><A
href="http://www.51c51.com/TEST/XL1000/xl100042.htm"><SPAN
lang=EN-US><FONT color=#000000>4．2<SPAN
style="mso-spacerun: yes">
</SPAN>XL1000下载头之插头定义</FONT></SPAN></A></TD>
<TD align=left width=257 height=24><FONT color=#000000><A
href="http://www.51c51.com/TEST/XL1000/xl100069.htm"><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-weight: bold"> </SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">实验<SPAN
lang=EN-US>9<SPAN style="mso-spacerun: yes">
</SPAN>74LS138 38译码器部分实验</SPAN></SPAN></A></FONT></TD>
<TD align=left width=255 height=24><A
href="http://www.51c51.com/TEST/XL1000/xl10007.htm"><SPAN
style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><FONT
color=#000000>第七章 怎样产生<SPAN
lang=EN-US>hex文件？</SPAN></FONT></SPAN></A></TD></TR>
<TR>
<TD align=left width=256 height=24><A
href="http://www.51c51.com/TEST/XL1000/xl100043.htm"><SPAN
lang=EN-US><FONT
color=#000000>4．3常用芯片的ISP相关引脚连接方法</FONT></SPAN></A></TD>
<TD align=left width=257 height=24><A
href="http://www.51c51.com/TEST/XL1000/xl1000610.htm"><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><FONT
color=#000000>实验<SPAN lang=EN-US>10<SPAN
style="mso-spacerun: yes"> </SPAN>74LS164
串入并出实验</SPAN></FONT></SPAN></A></TD>
<TD align=left width=255 height=24><A
href="http://www.51c51.com/TEST/XL1000/xl10008.htm"><SPAN
style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><FONT
color=#000000>第八章<SPAN lang=EN-US><SPAN
style="mso-spacerun: yes">
</SPAN>常见问题解答</SPAN></FONT></SPAN></A></TD></TR>
<TR>
<TD align=left width=256 height=24><FONT
color=#0066ff>第五章<SPAN lang=EN-US> XL1000
仿真操作指南</SPAN></FONT></TD>
<TD align=left width=257 height=24><A
href="http://www.51c51.com/TEST/XL1000/xl1000611.htm"><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><FONT
color=#000000>实验<SPAN lang=EN-US>11
74LS165并入串出实验</SPAN></FONT></SPAN></A></TD>
<TD align=left width=255 height=24><A
href="http://www.51c51.com/TEST/XL1000/xl10009.htm"><FONT
color=#000000>第九章 系统配置和售后服务指南</FONT></A></TD></TR></TBODY></TABLE>
<P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: center"
align=center><SPAN lang=EN-US
style="FONT-SIZE: 14pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 9.0pt"><!--[if gte vml 1]><V:SHAPETYPE
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v:ext="edit" /></V:SHAPETYPE><V:SHAPE id=_x0000_i1025
style="WIDTH: 18.75pt; HEIGHT: 18.75pt" o:bullet="t"
type="#_x0000_t75"><V:IMAGEDATA o:title=""
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/></V:SHAPE><![endif]--></SPAN><FONT color=#ff6600 size=4><SPAN
style="FONT-FAMILY: 宋体"><SPAN lang=EN-US><IMG height=25 alt=*
src="24C02储存开机次数实验.files/e00.jpg" width=25
v:shapes="_x0000_i1025"></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">实验<SPAN
lang=EN-US>19<SPAN style="mso-spacerun: yes">
</SPAN>24C02储存开机次数实验<O:P> </O:P></SPAN></SPAN></SPAN></FONT></P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: center"
align=center><SPAN lang=EN-US
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"> <O:P>
</O:P></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: left"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><SPAN
style="mso-spacerun: yes"> </SPAN>24C02是2K字节的串行EEPROM,
内部含有256个8位字节，该器件通过总线操作，并有专门的写保护功能。<O:P> </O:P></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: left"
align=left><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">下面给出的是<SPAN
lang=EN-US>24C02的电路原理图和器件管脚描述。<O:P> </O:P></SPAN></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: left"
align=left><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">串行</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">EEPROM</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">简称</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">I2C</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">总线式串行器件。串行器件不仅占用很少的资源和</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">I/O</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">线，而且体积大大缩小，同时具有工作电源宽、抗干扰能力强、功耗低、数据不易丢失和支持在线编程等特点。</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt"><BR>
I2C</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">总线是一种用于</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">IC</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">器件之间连接的二线制总线。它通过</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">SDA</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（串行数据线）及</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">SCL</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（串行时钟线）两根线在连到总线上的器件之间传送信息，并根据地址识别每个器件：不管是单片机、存储器、</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">LCD</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">驱动器还是键盘接口。</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><O:P>
</O:P></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: left"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"> <O:P>
</O:P></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: left"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><!--[if gte vml 1]><V:SHAPE
id=_x0000_i1026 style="WIDTH: 207pt; HEIGHT: 114.75pt"
type="#_x0000_t75"><V:IMAGEDATA o:title=""
src="file:///C:/DOCUME~1/sxj1/LOCALS~1/Temp/msoclip1/01/clip_image003.png"
/></V:SHAPE><![endif]--><IMG height=153
src="24C02储存开机次数实验.files/e01.jpg" width=276 v:shapes="_x0000_i1026"><!--[if gte vml 1]><V:SHAPE id=_x0000_i1027
style="WIDTH: 198pt; HEIGHT: 135.75pt" type="#_x0000_t75">
<V:IMAGEDATA o:title=""
src="file:///C:/DOCUME~1/sxj1/LOCALS~1/Temp/msoclip1/01/clip_image005.png"
/></V:SHAPE><![endif]--><IMG height=181
src="24C02储存开机次数实验.files/e02.jpg" width=264
v:shapes="_x0000_i1027"><O:P> </O:P></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: left"
align=left><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">我们通过一个试验来了解<SPAN
lang=EN-US>24C02的读写操作过程：<O:P> </O:P></SPAN></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 27pt; LINE-HEIGHT: 200%; TEXT-ALIGN: left; mso-char-indent-count: 3.0; mso-char-indent-size: 9.0pt"
align=left><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">该试验功能是单片机复位一次，
自动从<SPAN lang=EN-US>24C02中读取数据，
然后加1，最终数码管中的数据就是开机的次数，具有一定的实用意义。<O:P> </O:P></SPAN></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: left"
align=left><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">接线方法：<SPAN
lang=EN-US><O:P> </O:P></SPAN></SPAN></P>
<P class=MsoNormal style="LINE-HEIGHT: 200%; TEXT-ALIGN: left"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">1
接8位数码管的数据线。将数码管部份的数据口 JP5接到CPU部份的P0口JP51.<O:P> </O:P></SPAN></P>
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