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📄 mega8学习笔记（10_3_1）-------cocoguojia　原创--单片机实验室－－－－－嘉哥.htm

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                        face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SCL 
                        DDRC.4<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SDA DDRC.5 
                        <o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p><FONT 
                        face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SCL_INPUT 
                        PINC.4<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SDA_INPUT 
                        PINC.5<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p><FONT 
                        face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SCL_OUTPUT 
                        PORTC.4<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SDA_OUTPUT 
                        PORTC.5<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p><FONT 
                        face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">//</FONT></SPAN><SPAN 
                        style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">带</SPAN><SPAN 
                        lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">2us</FONT></SPAN><SPAN 
                        style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">的延时等待稳定</SPAN><SPAN 
                        lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SCL_HIGHT<SPAN 
                        style="mso-spacerun: yes">&nbsp; </SPAN>SCL=0 
                        ;delay_us(2);<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SCL_LOW<SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; 
                        </SPAN>SCL=1 ;delay_us(2);<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p><FONT 
                        face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SDA_HIGHT<SPAN 
                        style="mso-spacerun: yes">&nbsp; </SPAN>SDA=0 
                        ;delay_us(2);<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">#define SDA_LOW<SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; 
                        </SPAN>SDA=1 ;delay_us(2);<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p><FONT 
                        face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p><FONT 
                        face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">void 
                        init(void)<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">{<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman"><SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                        </SPAN>ACSR=0x80;<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman"><SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                        </SPAN>PORTB=0XFF;<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman"><SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                        </SPAN>DDRB=0XFF;<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman"><SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                        </SPAN>SCL_OUTPUT=0;<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman"><SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                        </SPAN>SDA_OUTPUT=0;<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman"><SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                        </SPAN>SCL_LOW;<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman"><SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
                        </SPAN>SDA_LOW;<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">}<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p><FONT 
                        face="Times New Roman">&nbsp;</FONT></o:p></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">void 
                        start(void)<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman">{<o:p></o:p></FONT></SPAN></P>
                        <P class=MsoNormal 
                        style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
                        align=left><SPAN lang=EN-US 
                        style="FONT-SIZE: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT 
                        face="Times New Roman"><SPAN 
                        style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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