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<span class="bold">游客: </span><a href="http://www.zdnet.com.cn/zdnet/register.php?forward=http%3A%2F%2Fbbs.zdnet.com.cn%2Fthread-99103-1-1.html">注冊</a>| <a href="http://www.zdnet.com.cn/zdnet/rms_login.php?forward=http%3A%2F%2Fbbs.zdnet.com.cn%2Fthread-99103-1-1.html">登錄</a>| <a href="member.php?action=list">會員</a> | <a href="search.php">搜索</a> | <span id="plugins" onmouseover="showMenu(this.id)"><a href="#"><img src=http://bbs.zdnet.com.cn/imgs/newpic.gif>論壇設(shè)施</a><img alt="" title="" src="images/default/jsmenu.gif" border="0"></span>| <a href="faq.php">幫助</a></div></div></div><div class="maintable"><br> <div class="subtable nav" style="width:98%"><span id="forumlist" onmouseover="showMenu(this.id)"><a href="index.php">ZDNetChina中文社區(qū)</a></span> » <a href="forum-367-1.html">supertest</a> » 求:EDA VHDL 交通燈程序,高手來幫我啊!!!!!!</div><br></div><div class="maintable"><table width="98%" cellspacing="0" cellpadding="0" align="center" style="clear: both;"><tr><td valign="bottom"><div style="margin-bottom: 2px"><a href="redirect.php?fid=367&tid=99103&goto=nextoldset" style="font-weight: normal"> ‹‹ 上一主題</a> | <a href="redirect.php?fid=367&tid=99103&goto=nextnewset" style="font-weight: normal">下一主題 ››</a><br></div></td><td width="40%" align="right" valign="bottom"><div class="right"> <a href="post.php?action=reply&fid=367&tid=99103&extra=page%3D1"><img src="images/default/reply.gif" border="0" alt="" /></a></div><div id="newspecialheader" class="right" onmouseover="showMenu(this.id)"><a href="post.php?action=newthread&fid=367&extra=page%3D1"><img src="images/default/newtopic.gif" border="0" alt="" /></a><a href="###"><img src="images/default/newspecial.gif" border="0" alt="" /></a></div><div class="popupmenu_popup newspecialmenu" id="newspecialheader_menu" style="display: none"><table cellpadding="4" cellspacing="0" border="0" width="100%"><tr><td class="popupmenu_option"><div class="newspecial"><a href="post.php?action=newthread&fid=367&extra=page%3D1&poll=yes">投票</a></div></td></tr><tr><td class="popupmenu_option"><div class="newspecial"><a href="post.php?action=newthread&fid=367&extra=page%3D1&trade=yes">交易</a></div></td></tr><tr><td class="popupmenu_option"><div class="newspecial"><a href="post.php?action=newthread&fid=367&extra=page%3D1&reward=yes">懸賞</a></div></td></tr><tr><td class="popupmenu_option"><div class="newspecial"><a href="post.php?action=newthread&fid=367&extra=page%3D1&activity=yes">活動</a></div></td></tr></table></div></td></tr></table></div><script type="text/javascript">function fastreply(subject) {if($('postform')) {$('postform').subject.value = subject;$('postform').message.focus();}}</script><div class="maintable"><div class="spaceborder" style="width: 98%; border-bottom: none"><table cellspacing="0" cellpadding="2" width="100%" align="center"><tr class="header"><td colspan="2" style="color: #154BA0"><div class="right" style="font-weight: normal"><a href="viewthread.php?action=printable&tid=99103" target="_blank">打印</a> |<a href="misc.php?action=emailfriend&tid=99103">推薦</a> |<a href="my.php?item=subscriptions&subadd=99103" id="ajax_subscription" onclick="ajaxmenu(event, this.id)">訂閱</a> |<a href="my.php?item=favorites&tid=99103" id="ajax_favorite" onclick="ajaxmenu(event, this.id)">收藏</a></div>標(biāo)題:求:EDA VHDL 交通燈程序,高手來幫我啊!!!!!!</td></tr></table></div><form method="post" name="delpost" action="topicadmin.php?action=delpost&fid=367&tid=99103&page=1"><input type="hidden" name="formhash" value="50c509eb"><div class="spaceborder" style="width: 98%; margin-bottom: 4px; border-top: none"><table cellspacing="0" cellpadding="2" width="100%" align="center" class="t_row"><tr style="height: 100%"><td width="18%" valign="top" class="t_user"><a name="pid234137"></a> <a name="lastpost"></a><a href="space-uid-230269.html" target="_blank" class="bold">kevenking</a><br><div class="smalltxt">管理員<br><img src="images/default/star_level3.gif" alt="Rank: 9" /><img src="images/default/star_level3.gif" alt="Rank: 9" /><img src="images/default/star_level1.gif" alt="Rank: 9" /><br><br><br><br>UID 230269<br>精華 0<br>積分 10467<br>帖子 993<br>威望 4965 <br>ZD幣 993 元<br>閱讀權(quán)限 255<br>注冊 2007-3-23<br>狀態(tài) 離線</div></td><td width="82%" valign="top" style="padding: 0px"><table border="0" cellspacing="0" cellpadding="2" class="t_msg"><tr><td><div> <div class="right t_number"> <span class="bold"> <a href="###" class="bold" title="復(fù)制帖子鏈接到剪貼板" onclick="setcopy('http://bbs.zdnet.com.cn/viewthread.php?tid=99103&page=1#pid234137', '已經(jīng)復(fù)制到剪貼板')"><font color=red>樓主</font></a> </span> </div><div class="right" style="padding-top: 2px;"><a href="magic.php?action=user&pid=234137" target="_blank">使用道具</a> </div><div style="padding-top: 2px;">發(fā)表于 2007-8-27 02:30 PM <a href="profile-uid-230269.html" target="_blank">資料</a> <a href="http://space.zdnet.com.cn/?uid/230269" target="_blank">個人空間</a> <a href="pm.php?action=send&uid=230269" target="_blank">短消息</a> <a href="memcp.php?action=buddylist&newbuddyid=230269&buddysubmit=yes" target="_blank" id="ajax_buddy_0" onclick="ajaxmenu(event, this.id)">加為好友</a> </div></div></td></tr><tr><td valign="top" class="line" height="100%" style="padding-top: 10px;"> <iframe id="innerframe" border="0" marginwidth="0" frameborder="0" height="76" marginheight="0" noResize="" style="float:right;margin-top:0px" scrolling="no" name="innerframe" framespacing="0" vspace="0" src="digg.php?id=99103" width="56"></iframe> <div style="float: right" align="right"><a href="misc.php?action=viewratings&tid=99103&pid=234137" title="評分 0"></a></div><div align="right"> <script language="JavaScript"> <!-- function copyUrl(url){ var content=''; window.clipboardData.setData("Text",url); alert("復(fù)制成功,請粘貼到你的QQ/MSN上推薦給你的好友"); }//--> </script><a href="javascript:copyUrl('求:EDA VHDL 交通燈程序,高手來幫我啊!!!!!!\nhttp://bbs.zdnet.com.cn/viewthread.php?tid=99103')"><img src="images/copy.gif" border="0"></a> </div><h1>求:EDA VHDL 交通燈程序,高手來幫我啊!!!!!!</h1><div id="message234137" class="t_msgfont">求:EDA VHDL 交通燈程序,高手來幫我啊!!!!!! 要求: A 方向為主干道,B 為支干道。分設(shè)紅(R),黃(Y),綠(G),和左拐(L)。1表示燈亮,0表示燈滅。四燈的亮的順序和時間長短為:A 方向:綠燈(40秒)-->黃燈(5秒)-->左拐燈(15秒)-->黃燈(5秒)-->紅燈(55秒)。B 方向:紅燈(65秒)-->綠燈(30秒)-->黃燈(5秒)-->左拐燈(15秒)-->黃燈(5秒)。時間要想改變只要改變計數(shù)器的預(yù)知數(shù)即可。 信號定義和說明: CLK :步時鐘 EN :使能信號,為1,則控制器開始工作 LAMPA[3:0]:控制A方向的4盞燈的亮滅;其中LAMPA(0)到LAMPA(3)分別控制A方向的左拐燈,綠燈,黃燈和紅燈。 LAMPB[3:0]:控制B方向的4盞燈的亮滅;其中LAMPB(0)到LAMPB(3)分別控制B方向的左拐燈,綠燈,黃燈和紅燈。 ACOUNT[7:0]:用于A方向的交通燈的時間顯示,寬8位,可驅(qū)動2個數(shù)碼管。 BCOUNT[7:0]:用于B方向的交通燈的時間顯示,寬8位,可驅(qū)動2個數(shù)碼管。 上面是我畢業(yè)設(shè)計中的一部分。希望高手們幫幫我,給我做出來,謝謝了!!!</div><br><font style="color: #333333; font: 12px Tahoma, Verdana"></font><script language=javascript>document.body.oncopy=function(){event.returnValue=false;var t=document.selection.createRange().text;var s="本貼來自ZDNetChina中文社區(qū) http://bbs.zdnet.com.cn ,本貼地址:http://bbs.zdnet.com.cn/viewthread.php?tid=99103";clipboardData.setData('Text','\r\n'+t+'\r\n'+s+'\r\n\r\n\r\n\r\n');}</script></td></tr><tr><td align="right"><a href="###" onclick="scroll(0,0)"><img src="images/default/top.gif" border="0" alt="頂部" /></a></td></tr></table></td></tr></table></div></form></div><div class="maintable" style="clear:both"><table width="98%" cellspacing="0" cellpadding="0" align="center"><tr><td valign="top"></td><td width="40%" align="right">
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