?? 24c02儲存開機(jī)次數(shù)實(shí)驗(yàn).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>實(shí)驗(yàn)<SPAN lang=EN-US>22
串行雙向通信實(shí)驗(yàn) </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: 宋體; mso-bidi-font-size: 12.0pt"><FONT
color=#000000>4．1<SPAN style="mso-spacerun: yes">
</SPAN>ISP 下載部份介紹 </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: 宋體; mso-bidi-font-size: 12.0pt"><O:P></O:P></SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><A
href="http://www.51c51.com/TEST/XL1000/xl100068.htm">實(shí)驗(yàn)<SPAN
lang=EN-US>8 74LS14反向器實(shí)驗(yàn) </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: 宋體; mso-bidi-font-size: 12.0pt">實(shí)驗(yàn)<SPAN
lang=EN-US>23 </SPAN></SPAN></A><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><A
href="http://www.51c51.com/TEST/XL1000/xl1000623.htm">綜合實(shí)驗(yàn)
<SPAN
lang=EN-US>18B20數(shù)字溫度顯示系統(tǒng) </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下載頭之插頭定義</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: 宋體; mso-bidi-font-size: 12.0pt; mso-bidi-font-weight: bold"> </SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">實(shí)驗(yàn)<SPAN
lang=EN-US>9<SPAN style="mso-spacerun: yes">
</SPAN>74LS138 38譯碼器部分實(shí)驗(yàn)</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 怎樣產(chǎn)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相關(guān)引腳連接方法</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: 宋體; mso-bidi-font-size: 12.0pt"><FONT
color=#000000>實(shí)驗(yàn)<SPAN lang=EN-US>10<SPAN
style="mso-spacerun: yes"> </SPAN>74LS164
串入并出實(shí)驗(yàn)</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>常見問題解答</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: 宋體; mso-bidi-font-size: 12.0pt"><FONT
color=#000000>實(shí)驗(yàn)<SPAN lang=EN-US>11
74LS165并入串出實(shí)驗(yàn)</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 系統(tǒng)配置和售后服務(wù)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: 宋體; 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
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type="#_x0000_t75"><V:IMAGEDATA o:title=""
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/></V:SHAPE><![endif]--></SPAN><FONT color=#ff6600 size=4><SPAN
style="FONT-FAMILY: 宋體"><SPAN lang=EN-US><IMG height=25 alt=*
src="24C02儲存開機(jī)次數(shù)實(shí)驗(yàn).files/e00.jpg" width=25
v:shapes="_x0000_i1025"></SPAN><SPAN
style="FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">實(shí)驗(yàn)<SPAN
lang=EN-US>19<SPAN style="mso-spacerun: yes">
</SPAN>24C02儲存開機(jī)次數(shù)實(shí)驗(yàn)<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: 宋體; 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: 宋體; mso-bidi-font-size: 12.0pt"><SPAN
style="mso-spacerun: yes"> </SPAN>24C02是2K字節(jié)的串行EEPROM,
內(nèi)部含有256個(gè)8位字節(jié)，該器件通過總線操作，并有專門的寫保護(hù)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: 宋體; mso-bidi-font-size: 12.0pt">下面給出的是<SPAN
lang=EN-US>24C02的電路原理圖和器件管腳描述。<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: 宋體; 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: 宋體; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">簡稱</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">I2C</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">總線式串行器件。串行器件不僅占用很少的資源和</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: 宋體; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">線，而且體積大大縮小，同時(shí)具有工作電源寬、抗干擾能力強(qiáng)、功耗低、數(shù)據(jù)不易丟失和支持在線編程等特點(diǎn)。</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: 宋體; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">總線是一種用于</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">IC</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">器件之間連接的二線制總線。它通過</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">SDA</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（串行數(shù)據(jù)線）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: 宋體; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（串行時(shí)鐘線）兩根線在連到總線上的器件之間傳送信息，并根據(jù)地址識別每個(gè)器件：不管是單片機(jī)、存儲器、</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; mso-bidi-font-size: 13.5pt">LCD</SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 13.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">驅(qū)動(dòng)器還是鍵盤接口。</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋體; 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: 宋體; 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: 宋體; 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儲存開機(jī)次數(shù)實(shí)驗(yàn).files/e01.jpg" width=276 v:shapes="_x0000_i1026"><!--[if gte vml 1]><V:SHAPE id=_x0000_i1027
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<V:IMAGEDATA o:title=""
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/></V:SHAPE><![endif]--><IMG height=181
src="24C02儲存開機(jī)次數(shù)實(shí)驗(yàn).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: 宋體; mso-bidi-font-size: 12.0pt">我們通過一個(gè)試驗(yàn)來了解<SPAN
lang=EN-US>24C02的讀寫操作過程：<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: 宋體; mso-bidi-font-size: 12.0pt">該試驗(yàn)功能是單片機(jī)復(fù)位一次，
自動(dòng)從<SPAN lang=EN-US>24C02中讀取數(shù)據(jù)，
然后加1，最終數(shù)碼管中的數(shù)據(jù)就是開機(jī)的次數(shù)，具有一定的實(shí)用意義。<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: 宋體; mso-bidi-font-size: 12.0pt">接線方法：<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: 宋體; mso-bidi-font-size: 12.0pt">1
接8位數(shù)碼管的數(shù)據(jù)線。將數(shù)碼管部份的數(shù)據(jù)口 JP5接到CPU部份的P0口JP51.<O:P> </O:P></SPAN></P>
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