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📄 pic16cxxx-9-2.htm

📁 PIC单片机C语言教程!绝对经典
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                <td align="right"><b><font style="font-size:16px" color="#990000">—— 
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          <td colspan="2"><font style="font-size:16px" color="#000000"><b>>> <a href="index.htm">PIC16CXXX单片机应用与设计</a> 
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          <td align="center"><b><font size="3">第九章 PIC16CXX设计范例 </font><font size="3"></font></b></td>
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          <td> <p>&nbsp;</p></td>
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          <td height="300"> 六、16CXX和24LC65的联接<br> <br>
            (一)电路设计<br> &nbsp;&nbsp;&nbsp;&nbsp;24LC65和24LC01的读写时序基本相同,只是24LC65容量为8K*8,在送完I2C器件地址后,还要发送2字节的数据地址。<br> 
            <p align="center"> <img src="image/a407.gif" width="408" height="152"> 
            </p>
            <p>(二)程序清单 </p>
            <p>&nbsp; </p>
            <p>七、16CXX和93LC46的联接<br>
              <br>
              (一)电路设计<br>
              &nbsp;&nbsp;&nbsp;&nbsp;93LCXX系列为三线式的E2PROM存储器件。本例以PIC16C61和93LC46为例,说明PIC16CXX和93LCXX的接口方法。</p>
            <p align="center"><img src="image/a408.gif" width="333" height="150"></p>
            <p>(二)程序清单</p>
            <p><img src="image/d3.gif" width="571" height="4352"><br>
              七、16CXX和93LC46的联接<br>
              <br>
              (一)电路设计<br>
              &nbsp;&nbsp;&nbsp;&nbsp;93LCXX系列为三线式的E2PROM存储器件。本例以PIC16C61和93LC46为例,说明PIC16CXX和93LCXX的接口方法。</p>
            <p align="center"><img src="image/a409.gif" width="485" height="259"></p>
            <p>(二)程序清单</p>
            <p><img src="image/d4.gif" width="559" height="3598" hspace="30"><br>
            </p>
            <p>八、16CXX SPI接口和93LCXX的联接<br>
              <br>
              (一)电路设计<br>
              &nbsp;&nbsp;&nbsp;&nbsp;PIC16C64/74带有SPI接口。虽然93系列没有SPI接口,但经过软件编程,很容易通过SPI接口与CPU通讯。SPI总线每次都传输8bit(1BYTE),第一次传送起始位,读写命令和地址最高位A8,第二次传送低8位地址,如下所示:<br>
            </p>
            <p align="center">│ 0 │ 0 │ 0 │ 0 │ SB │ OP1 │ OP0 │ A8 │<br>
              第一次传送<br>
              <br>
              │ A7 │ A6 │ A5 │ A4 │ A3 │ A2 │ A1 │ A0 │<br>
              第二次传送<br>
              <br>
              图一为16C64/74和24LC56/66的联接电路图。<br>
            </p>
            <p align="center"><img src="image/a409.gif" width="485" height="259"></p>
            <p><br>
              (二)程序流程图<br>
              1、写93LCXX流程图</p>
            <p align="center"><img src="image/a411.gif" width="270" height="761"></p>
            <p>[注] 发送状态时CKP要置1,接收状态时SKP要清0。<br>
              <br>
              3、写使能子程序流程图</p>
            <p align="center"><img src="image/a412.gif" width="232" height="566"></p>
            <p>4、发送接收一字节子程序流程图</p>
            <p align="center"><img src="image/a414.gif" width="378" height="425"> 
            </p>
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              <p><a href="PIC16Cxxx-9-1.htm">上一页</a> <a href="PIC16Cxxx-9-3.htm">下一页</a> 
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            <p><a href="PIC16Cxxx-1.htm">第一章</a> <a href="PIC16Cxxx-2.htm">第二章</a> 
              <a href="PIC16Cxxx-3.htm">第三章</a> <a href="PIC16Cxxx-4.htm">第四章</a> 
              <a href="PIC16Cxxx-5.htm">第五章</a> <a href="PIC16Cxxx-6.htm">第六章</a> 
              <a href="PIC16Cxxx-7.htm">第七章</a> <a href="PIC16Cxxx-8.htm">第八章</a> 
              <a href="PIC16Cxxx-9.htm">第九章</a> <a href="PIC16Cxxx-10.htm">第十章</a></p></td>
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