?? 杭州電子&計算機工作室 歡迎您！ welcome to hangzhou electron & computer studio.htm
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height=10><B><FONT color=#ffffff>首頁</FONT><FONT color=#ffffff>>
單片機教學(C語言教程)</FONT></B></TD>
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<DIV class=title1 align=center
style1><B>第二課 初步認識51芯片</B></DIV></TD></TR>
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<TD> 上一課我們的第一個項目完成了，可能有懂C語言的朋友會說，"這和PC機上的C語言沒有多大的區(qū)別呀"。的確沒有太大的區(qū)別，C語言只是一種程序語言的統(tǒng)稱，針對不同的處理器相關(guān)的C語言都會有一些細節(jié)的改變。編寫PC機的C程序時，如要對硬件編程你就必須對硬件要有一定的認識，51單片機編程就更是如此，因它的開發(fā)應(yīng)用是不可與硬件脫節(jié)的，所以我們先要來初步認識一下51苾片的結(jié)構(gòu)和引腳功能。MSC51架構(gòu)的芯片種類很多，具體特點和功能不盡相同（在以后編寫的附錄中會加入常用的一些51芯片的資料列表），在此后的教程中就以Atmel公司的AT89C51和AT89C2051為中心對象來進行學習，兩者是AT89系列的典型代表，在愛好者中使用相當?shù)亩啵瑧?yīng)用資料很多，價格便宜，是初學51的首選芯片。嘿嘿，口水多多有點賣廣告之嫌了。：P</TD></TR>
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<DIV align=center>圖2－1 AT89C51和AT89C2051引腳功能圖<BR></DIV></TD></TR>
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<H1 align=center><SPAN lang=EN-US>AT89C51</SPAN></H1></TD>
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<H1 align=center><SPAN lang=EN-US>AT89C2051</SPAN></H1></TD></TR>
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style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">4KB可編程Flash存儲器（可擦寫1000次）<O:P></O:P></SPAN></P></TD>
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style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">2KB可編程Flash存儲器（可擦寫1000次）<O:P></O:P></SPAN></P></TD></TR>
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style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">三級程序存儲器保密<SPAN
lang=EN-US><O:P></O:P></SPAN></SPAN></P></TD>
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lang=EN-US><O:P></O:P></SPAN></SPAN></P></TD></TR>
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