📄 mega8学习笔记（9）-------cocoguojia 原创--单片机实验室－－－－－嘉哥.htm
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class=content9><STRONG>Mega8学习笔记（9）-------cocoguojia 原创</STRONG></TD></TR>
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<DIV align=right>[ 2008-6-5 10:55:00 | By: <SPAN
class=style3>嘉哥</SPAN> ]</DIV></TD></TR></TBODY></TABLE>
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<TD><SPAN class=oblog_text><SPAN id=ob_logd28306></SPAN>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">下面我就以《</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman"> AVR
</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单片机入门与实践</SPAN><FONT
face="Times New Roman"> </FONT><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">》李弘</SPAN><FONT
face="Times New Roman"> </FONT><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">等编著</SPAN><SPAN
lang=EN-US><SPAN style="mso-spacerun: yes"><FONT
face="Times New Roman"> </FONT></SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">北京航空航天大学出版社这本书来讲述学习心得</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><o:p><FONT
face="Times New Roman"></FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><o:p><FONT
face="Times New Roman"> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><FONT
face="Times New Roman">SPI</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">技术很实用，一些单片机外设支持此项技术，如</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">nrf905</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">等，单片机有了</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">SPI</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">功能，就不用通过软件模拟</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">spi</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">通讯方式了，省了软件的资源也方便了不少。</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><o:p><FONT
face="Times New Roman"> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">第九章：</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">SPI</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">技术</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><o:p><FONT
face="Times New Roman"> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><SPAN style="mso-tab-count: 1"><FONT
face="Times New Roman">
</FONT></SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">若果之前用过</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">DS18B20(</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">不是</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">SPI</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">技术，但有相通性</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">)</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，那</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">SPI</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">会很容易学的。</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">SPI</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可比</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">DS18B20</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">操作简单多了。呵呵</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>P152</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">到</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">P160</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>P154 </FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">要仔细看</SPAN><SPAN
lang=EN-US><SPAN style="mso-spacerun: yes"><FONT
face="Times New Roman"> </FONT></SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">程序例子研究一下</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>SPI</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有主机和从机模式，</SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">我们先从</SPAN><FONT
face="Times New Roman"> </FONT><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">主机</SPAN><FONT
face="Times New Roman"> </FONT><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发送看起：</SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l1 level1 lfo1; tab-stops: list 18.0pt"><SPAN
lang=EN-US
style="mso-fareast-font-family: 'Times New Roman'"><SPAN
style="mso-list: Ignore"><FONT
face="Times New Roman">1、<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></FONT></SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">主机的</SPAN><SPAN
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