📄 单片机练习 - i2c总线协议 - 让生活web个够 - 博客园.htm

📁 AT24c01及DS18B20应用程序,与大家一起分享
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style="COLOR: #008080">&nbsp;31</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ExpandedBlockEnd.gif" 
align=top>}</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;32</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/None.gif" align=top><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;33</SPAN><SPAN style="COLOR: #000000"><IMG 
id=Codehighlighter1_413_488_Open_Image 
onclick="this.style.display='none'; Codehighlighter1_413_488_Open_Text.style.display='none'; Codehighlighter1_413_488_Closed_Image.style.display='inline'; Codehighlighter1_413_488_Closed_Text.style.display='inline';" 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ExpandedBlockStart.gif" 
align=top><IMG id=Codehighlighter1_413_488_Closed_Image style="DISPLAY: none" 
onclick="this.style.display='none'; Codehighlighter1_413_488_Closed_Text.style.display='none'; Codehighlighter1_413_488_Open_Image.style.display='inline'; Codehighlighter1_413_488_Open_Text.style.display='inline';" 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ContractedBlock.gif" 
align=top></SPAN><SPAN id=Codehighlighter1_413_488_Closed_Text 
style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">/**/</SPAN><SPAN 
id=Codehighlighter1_413_488_Open_Text><SPAN 
style="COLOR: #008000">/*</SPAN><SPAN 
style="COLOR: #008000">****************************&nbsp;I2C总线协议&nbsp;***********************************</SPAN><SPAN 
style="COLOR: #008000">*/</SPAN></SPAN><SPAN 
style="COLOR: #000000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;34</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/None.gif" align=top></SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN style="COLOR: #008000">起始信号</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;35</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/None.gif" align=top></SPAN><SPAN 
style="COLOR: #0000ff">void</SPAN><SPAN 
style="COLOR: #000000">&nbsp;start()<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;36</SPAN><SPAN style="COLOR: #000000"><IMG 
id=Codehighlighter1_510_628_Open_Image 
onclick="this.style.display='none'; Codehighlighter1_510_628_Open_Text.style.display='none'; Codehighlighter1_510_628_Closed_Image.style.display='inline'; Codehighlighter1_510_628_Closed_Text.style.display='inline';" 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ExpandedBlockStart.gif" 
align=top><IMG id=Codehighlighter1_510_628_Closed_Image style="DISPLAY: none" 
onclick="this.style.display='none'; Codehighlighter1_510_628_Closed_Text.style.display='none'; Codehighlighter1_510_628_Open_Image.style.display='inline'; Codehighlighter1_510_628_Open_Text.style.display='inline';" 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ContractedBlock.gif" 
align=top></SPAN><SPAN id=Codehighlighter1_510_628_Closed_Text 
style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/dot.gif"></SPAN><SPAN 
id=Codehighlighter1_510_628_Open_Text><SPAN 
style="COLOR: #000000">{&nbsp;<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;37</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" 
align=top>&nbsp;&nbsp;&nbsp;&nbsp;SDA&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #000000">1</SPAN><SPAN 
style="COLOR: #000000">;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN style="COLOR: #008000">启动I2C总线</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;38</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" align=top></SPAN><SPAN 
style="COLOR: #000000">&nbsp;&nbsp;&nbsp;&nbsp;SCL&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #000000">1</SPAN><SPAN style="COLOR: #000000">;<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;39</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" 
align=top>&nbsp;&nbsp;&nbsp;&nbsp;delay5us();&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN style="COLOR: #008000">延时</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;40</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" align=top></SPAN><SPAN 
style="COLOR: #000000">&nbsp;&nbsp;&nbsp;&nbsp;SDA&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #000000">0</SPAN><SPAN 
style="COLOR: #000000">;&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN style="COLOR: #008000">起始信号</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;41</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" align=top></SPAN><SPAN 
style="COLOR: #000000">&nbsp;&nbsp;&nbsp;&nbsp;delay5us();&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN 
style="COLOR: #008000">SDA拉低时间至少4us后,&nbsp;才能拉低SCL</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;42</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" align=top></SPAN><SPAN 
style="COLOR: #000000">&nbsp;&nbsp;&nbsp;&nbsp;SCL&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #000000">0</SPAN><SPAN 
style="COLOR: #000000">;&nbsp;&nbsp;&nbsp;&nbsp;<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;43</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ExpandedBlockEnd.gif" 
align=top>}</SPAN></SPAN><SPAN style="COLOR: #000000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;44</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/None.gif" align=top><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;45</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/None.gif" align=top></SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN style="COLOR: #008000">终止信号</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;46</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/None.gif" align=top></SPAN><SPAN 
style="COLOR: #0000ff">void</SPAN><SPAN 
style="COLOR: #000000">&nbsp;stop()<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;47</SPAN><SPAN style="COLOR: #000000"><IMG 
id=Codehighlighter1_650_775_Open_Image 
onclick="this.style.display='none'; Codehighlighter1_650_775_Open_Text.style.display='none'; Codehighlighter1_650_775_Closed_Image.style.display='inline'; Codehighlighter1_650_775_Closed_Text.style.display='inline';" 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ExpandedBlockStart.gif" 
align=top><IMG id=Codehighlighter1_650_775_Closed_Image style="DISPLAY: none" 
onclick="this.style.display='none'; Codehighlighter1_650_775_Closed_Text.style.display='none'; Codehighlighter1_650_775_Open_Image.style.display='inline'; Codehighlighter1_650_775_Open_Text.style.display='inline';" 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ContractedBlock.gif" 
align=top></SPAN><SPAN id=Codehighlighter1_650_775_Closed_Text 
style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/dot.gif"></SPAN><SPAN 
id=Codehighlighter1_650_775_Open_Text><SPAN 
style="COLOR: #000000">{<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;48</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" 
align=top>&nbsp;&nbsp;&nbsp;&nbsp;SDA&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #000000">0</SPAN><SPAN 
style="COLOR: #000000">;&nbsp;<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;49</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" 
align=top>&nbsp;&nbsp;&nbsp;&nbsp;SCL&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #000000">1</SPAN><SPAN 
style="COLOR: #000000">;&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN 
style="COLOR: #008000">SCL拉高至少4us后,&nbsp;才能拉高SDA,&nbsp;产生终止信号</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;50</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" align=top></SPAN><SPAN 
style="COLOR: #000000">&nbsp;&nbsp;&nbsp;&nbsp;delay5us();<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;51</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" 
align=top>&nbsp;&nbsp;&nbsp;&nbsp;SDA&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #000000">1</SPAN><SPAN style="COLOR: #000000">;<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;52</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" 
align=top>&nbsp;&nbsp;&nbsp;&nbsp;delay5us();&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN 
style="COLOR: #008000">保持SDA拉高4.7us以上&nbsp;<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;53</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" 
align=top>&nbsp;&nbsp;&nbsp;&nbsp;</SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN 
style="COLOR: #008000">终止后,&nbsp;总线处于空闲状态</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;54</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ExpandedBlockEnd.gif" 
align=top></SPAN><SPAN style="COLOR: #000000">}</SPAN></SPAN><SPAN 
style="COLOR: #000000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;55</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/None.gif" align=top><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;56</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/None.gif" align=top></SPAN><SPAN 
style="COLOR: #008000">//</SPAN><SPAN style="COLOR: #008000">发送应答</SPAN><SPAN 
style="COLOR: #008000"><BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;57</SPAN><SPAN style="COLOR: #008000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/None.gif" align=top></SPAN><SPAN 
style="COLOR: #0000ff">void</SPAN><SPAN 
style="COLOR: #000000">&nbsp;ack()<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;58</SPAN><SPAN style="COLOR: #000000"><IMG 
id=Codehighlighter1_796_851_Open_Image 
onclick="this.style.display='none'; Codehighlighter1_796_851_Open_Text.style.display='none'; Codehighlighter1_796_851_Closed_Image.style.display='inline'; Codehighlighter1_796_851_Closed_Text.style.display='inline';" 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ExpandedBlockStart.gif" 
align=top><IMG id=Codehighlighter1_796_851_Closed_Image style="DISPLAY: none" 
onclick="this.style.display='none'; Codehighlighter1_796_851_Closed_Text.style.display='none'; Codehighlighter1_796_851_Open_Image.style.display='inline'; Codehighlighter1_796_851_Open_Text.style.display='inline';" 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/ContractedBlock.gif" 
align=top></SPAN><SPAN id=Codehighlighter1_796_851_Closed_Text 
style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/dot.gif"></SPAN><SPAN 
id=Codehighlighter1_796_851_Open_Text><SPAN 
style="COLOR: #000000">{<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;59</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" 
align=top>&nbsp;&nbsp;&nbsp;&nbsp;SDA&nbsp;</SPAN><SPAN 
style="COLOR: #000000">=</SPAN><SPAN style="COLOR: #000000">&nbsp;</SPAN><SPAN 
style="COLOR: #000000">0</SPAN><SPAN style="COLOR: #000000">;<BR></SPAN><SPAN 
style="COLOR: #008080">&nbsp;60</SPAN><SPAN style="COLOR: #000000"><IMG 
src="单片机练习 - I2C总线协议 - 让生活Web个够 - 博客园_files/InBlock.gif" 
align=top>&nbsp;&nbsp;&nbsp;&nbsp;SCL&nbsp;</SPAN><SPAN
💿 文件大小 446 K
👤 上传用户 fengkuangyidao
📂 所属分类其他
🏷️ 相关标签

#18B #24c #c01 #B20
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