?? 自制easy 51pro串行編程器.htm
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>}</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>void
SetVpp12V()//</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>設(shè)置</span><span class=SpellE><span
lang=EN-US>Vpp</span></span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>為</span><span
lang=EN-US>12v</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>{</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><span
style='mso-tab-count:1'> </span>P3_4=0;</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><span
style='mso-tab-count:1'> </span>P3_3=1;</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>}</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span style='font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>還有個最重要的地方要注意：</span></p>
<p class=MsoNormal style='text-indent:99.75pt;mso-char-indent-count:9.5'><span
lang=EN-US><!--[if gte vml 1]><v:shape id="_x0000_i1026" type="#_x0000_t75"
style='width:373.5pt;height:200.25pt'>
<v:imagedata src="自制Easy%2051Pro串行編程器.files/image003.png" o:title=""/>
</v:shape><![endif]--><![if !vml]><img width=498 height=267
src="自制Easy%2051Pro串行編程器.files/image004.jpg" v:shapes="_x0000_i1026"><![endif]></span></p>
<p class=MsoNormal><span lang=EN-US>AT89C2051</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>的</span><span
lang=EN-US>PIN1</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>是</span><span class=SpellE><span
lang=EN-US>Vpp</span></span><span lang=EN-US>/RST</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>與</span><span
lang=EN-US>AT89C51</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>的</span><span
lang=EN-US>P1.0</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>的引腳是同一個位置，而</span><span lang=EN-US>AT89C51</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>的</span><span class=SpellE><span lang=EN-US>Vpp</span></span><span
lang=EN-US>/EA</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>引腳與</span><span lang=EN-US>AT89C2051</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>的</span><span lang=EN-US>P3.7</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>引腳又是同一個位置。這里可以用一對開關(guān)進行切換，我是用跳線解決的。燒</span><span
lang=EN-US>2051</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>時，控制器的</span><span lang=EN-US>P1.0</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>正好可以用來控制</span><span lang=EN-US>2051</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>的</span><span lang=EN-US>P3.7</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>。看源程序中有個這樣的定義：</span><span
lang=EN-US>#define C2051_P3_7<span style='mso-tab-count:1'> </span>P1_0</span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>做編程器的步驟：</span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>先做出一個最小系統(tǒng)，隨便燒個程序進去試試，讓你可以感受的到程序可以正常運行。很多人把編程器做完<span
class=GramE>后始終</span>檢測不到編程器，檢查錯誤都快搞得發(fā)瘋了，后來才發(fā)現(xiàn)單片機根本<span class=GramE>沒運行</span>。</span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>完成串口通訊的部分后，把程序燒進去，打開軟件，<span
class=GramE>看狀態(tài)</span>那里有沒有“編程器</span><span lang=EN-US>:</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>就緒”。如果沒有可以多復(fù)位幾次。如果還沒有檢測到編程器，看看端口，波特率是否設(shè)置正確。默認波特率是</span><span
lang=EN-US>28800</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>，工作方式</span><span lang=EN-US>1</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>，可以參照源程序。也可以用別的程序測試單片機與</span><span lang=EN-US>PC</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>通訊是否正常。</span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>這時候焊好一個芯片插座就可以用來編程</span><span
lang=EN-US>AT89S51</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>了，建議先把</span><span
lang=EN-US>AT89S51</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>的編程<span
class=GramE>器做出</span>來。成功后你就會有信心繼續(xù)往下做了。</span><span lang=EN-US>AT89S51</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>編程<span class=GramE>器只要</span>控制</span><span lang=EN-US>P1.5,P1.6,P1.7,RST</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>這幾個腳就可以了，但也要保證它是最小系統(tǒng)。</span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>接著把其他部分做完，這就要焊一堆東西了。有個很好的辦法讓你省去焊一堆線：看電路你會發(fā)現(xiàn)，單片機</span><span
lang=EN-US>P0,P1,P2</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>與目標(biāo)插座是對應(yīng)連接的，可以把單片機貼在插座的底部，直接引腳和引腳焊在一起，不過要注意別把單片機燒了，動手要快，要溫柔。不該焊在一起的引腳還要想辦法隔開，我就是飛了幾根線。</span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>5.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>做完后如果通訊正常就<span
class=GramE>直接放塊器件</span>看能不能被檢測到，能檢測再試試能不能讀寫。如果不行就要用這個東西了：</span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd;
text-indent:84.0pt;mso-char-indent-count:8.0'><span lang=EN-US><!--[if gte vml 1]><v:shape
id="_x0000_i1027" type="#_x0000_t75" style='width:411pt;height:376.5pt'>
<v:imagedata src="自制Easy%2051Pro串行編程器.files/image005.png" o:title=""/>
</v:shape><![endif]--><![if !vml]><img width=548 height=502
src="自制Easy%2051Pro串行編程器.files/image006.jpg" v:shapes="_x0000_i1027"><![endif]></span></p>
<p class=MsoNormal><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>這個東西原先是用來學(xué)</span><span lang=EN-US>CPLD</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>時測試邏輯功能是否正確的。利用單片機的</span><span lang=EN-US>P0-P3</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>口發(fā)出電平和接收電平并顯示，還可以調(diào)試子程序，可以給定子程序參數(shù)并調(diào)用，然后觀察子程序的返回值。上面有一堆按鈕，點按鈕后單片機相對應(yīng)的引腳電平就會改變，這時你可以用表測量，看是否隨你按下的按鈕而變化，這樣就可以判斷線路是否接通。還有點<span
class=GramE>擊</span>“</span><span lang=EN-US>PROCESS X</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>”時會調(diào)用你指定的子程序。看它的源程序中有這樣一些子程序：</span></p>
<p class=MsoNormal><span lang=EN-US>PROCESS_1:<span
style='mso-spacerun:yes'> </span>CLR<span
style='mso-spacerun:yes'> </span>P3.3<span class=GramE>;Vpp</span>=0v</span></p>
<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'> </span><span
style='mso-spacerun:yes'>
</span>SETB<span style='mso-spacerun:yes'> </span>P3.4</span></p>
<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'>
</span>MOV<span style='mso-spacerun:yes'>
</span>TX1,#0;</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>顯示</span><span lang=EN-US>0v</span></p>
<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'>
</span>RET</span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>PROCESS_2:<span
style='mso-spacerun:yes'> </span>CLR<span
style='mso-spacerun:yes'> </span>P3.3<span class=GramE>;Vpp</span>=5V</span></p>
<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'>
</span>CLR<span style='mso-spacerun:yes'> </span>P3.4</span></p>
<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'>
</span>MOV<span style='mso-spacerun:yes'>
</span>TX1,#5;</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>顯示</span><span lang=EN-US>5v</span></p>
<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'>
</span>RET</span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>PROCESS_3:<span
style='mso-spacerun:yes'> </span>CLR<span
style='mso-spacerun:yes'> </span>P3.4<span class=GramE>;Vpp</span>=12v</span></p>
<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'>
</span>SETB<span style='mso-spacerun:yes'> </span>P3.3</span></p>
<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'>
</span>MOV<span style='mso-spacerun:yes'> </span><span
style='mso-spacerun:yes'> </span>TX1,#12;</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>顯示</span><span
lang=EN-US>12v</span></p>
<p class=MsoNormal><span lang=EN-US><span
style='mso-spacerun:yes'>
</span>RET</span></p>
<p class=MsoNormal><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>應(yīng)該看懂了吧。就是說你按下“</span><span lang=EN-US>PROCESS
1</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>”</span><span lang=EN-US> <span
class=SpellE>Vpp</span>=0V </span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>，按下“</span><span
lang=EN-US>PROCESS 2</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>”</span><span
lang=EN-US> <span class=SpellE>Vpp</span>=5V</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>，按下“</span><span
lang=EN-US>PROCESS 3</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>”</span><span
lang=EN-US> <span class=SpellE>Vpp</span>=12V</span><span style='font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>這時用表測量你的</span><span
lang=EN-US>12v/5v/0v</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>切換電路是否正常。記得先要把</span><span
lang=EN-US>SUBPROC.BIN</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>這個文件燒到你的控制器單片機。</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span style='font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>最后把你的編程器調(diào)試到最佳狀態(tài)。如果發(fā)現(xiàn)編程器開啟后放置一段時間就停止了響應(yīng)或折騰一下就死機了，這時可以改進一下復(fù)位電路，加入看門狗之類的。如果寫入的數(shù)據(jù)經(jīng)常出錯，檢查</span><span
lang=EN-US>12v</span><span style='font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>電壓是否可以到位，</span><span lang=EN-US>VCC</span><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>是否穩(wěn)定。還有通訊線路不要太長，電纜盡可能的要好。</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span style='font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>如果還有問題可以在</span><span
lang=EN-US><a href="http://enkj.com/gbook/guestbook.asp?user=digiboy"><span
style='font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>我的留言板</span></a></span><span style='font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>找到解答。</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span style='font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>最后還是那個話題，歡迎你擴充它的器件支持。擴充器件的具體細節(jié)請看《</span><span
lang=EN-US>Easy 51Pro</span><span style='font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>的原理與擴充》。成功時記得與大家分享。</span><span
lang=EN-US><o:p></o:p></span></p>
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