⭐ 欢迎来到虫虫下载站！ | 📦 资源下载 📁 资源专辑 ℹ️ 关于我们
⭐ 虫虫下载站
📤 上传资源

📄 用74hc164来驱动数码管显示的麻烦.htm

📁 100M网卡驱动芯片资料
💻 HTM
字号:
🔍 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0050)http://www.et00.com/article/html/article_6740.html -->
<HTML><HEAD><TITLE>用74HC164来驱动数码管显示的麻烦</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gbk">
<META content=用74HC164来驱动数码管显示的麻烦,,电子电路,电子技术,单片机,技术文章 name=keywords>
<META content=用74HC164来驱动数码管显示的麻烦-电子电路技术文章单片机电子技术电路设计元器件-技术文章 name=description>
<META content="MSHTML 6.00.2900.2995" name=GENERATOR><LINK href="/favicon.ico" 
rel="shortcut icon"><LINK href="用74HC164来驱动数码管显示的麻烦.files/style.css" 
type=text/css rel=stylesheet>
<SCRIPT language=javascript src="用74HC164来驱动数码管显示的麻烦.files/config.js"></SCRIPT>

<SCRIPT language=javascript src="用74HC164来驱动数码管显示的麻烦.files/common.js"></SCRIPT>

<SCRIPT language=javascript 
src="用74HC164来驱动数码管显示的麻烦.files/prototype.js"></SCRIPT>
</HEAD>
<BODY>
<DIV class=header>
<TABLE class=bg_login cellSpacing=0 cellPadding=0 width=980>
  <TBODY>
  <TR>
    <TD align=middle width=200><!--时间-->
      <SCRIPT language=JavaScript 
      src="用74HC164来驱动数码管显示的麻烦.files/time.js"></SCRIPT>
    </TD>
    <TD align=right width=38></TD>
    <TD align=right width=*><!--会员登录-->
      <SCRIPT language=javascript 
      src="用74HC164来驱动数码管显示的麻烦.files/login.htm"></SCRIPT>
    </TD></TR></TBODY></TABLE>
<TABLE cellSpacing=0 cellPadding=0 width=980 align=center>
  <TBODY>
  <TR>
    <TD align=middle width=260 height=90><A href="http://www.et00.com/"><IMG 
      src="用74HC164来驱动数码管显示的麻烦.files/logo.gif"></A></TD>
    <TD align=middle width=620>
      <SCRIPT language=JavaScript 
      src="用74HC164来驱动数码管显示的麻烦.files/ad.htm"></SCRIPT>
    </TD>
    <TD width=100>
      <TABLE cellSpacing=0 cellPadding=0 width="100%">
        <TBODY>
        <TR>
          <TD>【<A id=StranLink>繁体中文</A>】</TD></TR>
        <TR>
          <TD>【<A 
            onclick="this.style.behavior='url(#default#homepage)';this.setHomePage ('http://www.et00.com');" 
            href="http://www.et00.com/article/html/article_6740.html#">设为首页</A>】</TD></TR>
        <TR>
          <TD>【<A 
            onclick="window.external.addFavorite('http://www.et00.com/','ET00.COM')" 
            href="http://www.et00.com/article/html/article_6740.html#">加入收藏</A>】</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE><!--频道列表-->
<DIV id=Whatever align=center>
<UL class=TabBarLevel1 id=TabPage1>
  <LI><A href="http://www.et00.com/">首页</A> </LI>
  <LI class=Selected id=Tabi><A class=white 
  href="http://www.et00.com/article/">技术文章</A> </LI>
  <LI><A class=white href="http://www.et00.com/sch/">电路图资料</A> </LI>
  <LI><A class=white href="http://www.et00.com/mcu/">单片机技术</A> </LI>
  <LI><A class=white href="http://www.et00.com/pcb/">PCB技术</A> </LI>
  <LI><A class=white href="http://www.et00.com/eda/">EDA技术</A> </LI>
  <LI><A class=white href="http://www.et00.com/light/">光电技术</A> </LI>
  <LI><A class=white href="http://www.et00.com/service/">维修技术</A> </LI>
  <LI><A class=white href="http://www.et00.com/picture/">图片频道</A> </LI>
  <LI><A class=white href="http://www1.pomoho.com/member/d1dz">视频教程</A> </LI>
  <LI><A class=white 
  href="http://tv.mofile.com/cn/tvuserinfo/userfullvideos.do?loginName=d1dz&amp;t=1">视频播客</A> 
  </LI>
  <LI><A class=white href="http://et00z.uu1001.com/">论坛</A> </LI></UL></DIV><!--频道下属栏目列表-->
<TABLE cellSpacing=0 cellPadding=0 width="100%">
  <TBODY>
  <TR>
    <TD class=submenu><A class=white 
      href="http://www.et00.com/article/">技术文章首页</A> | <A class=white 
      href="http://www.et00.com/article/n1/">经典电子</A> | <A class=white 
      href="http://www.et00.com/article/n2/">现代电子</A> | <A class=white 
      href="http://www.et00.com/article/html/index.php?keyid=1">留言本</A> | <A 
      class=white href="http://www.et00.com/article/search.php">搜索</A> 
  </TD></TR></TBODY></TABLE></DIV>
<DIV class=main>
<TABLE cellSpacing=0 cellPadding=0 width=980>
  <TBODY>
  <TR>
    <TD height=10></TD></TR></TBODY></TABLE>
<SCRIPT type=text/javascript>
function fontZoom(size)
{
   $('content').style.fontSize=size+'px';
}
</SCRIPT>

<TABLE cellSpacing=0 cellPadding=0 width=980>
  <TBODY>
  <TR>
    <TD class=content vAlign=top width=760><!--位置导航-->
      <DIV class=position_1>当前位置：<A 
      href="http://www.et00.com/article/">技术文章首页</A> &gt;&gt; <A 
      href="http://www.et00.com/article/n2/">现代电子</A> &gt;&gt; <A 
      href="http://www.et00.com/article/n2/l42/">应用类20</A> &gt;&gt; </DIV><!--主标题-->
      <H1>用74HC164来驱动数码管显示的麻烦 </H1><!--副标题--><!--文章属性-->
      <DIV id=property>作者：<A class=member_url 
      href="http://www.et00.com/member/member.php?username=admin"></A>&nbsp;来源：<A 
      href="http://www.et00.com/article/html/article_6740.html#" 
      target=_blank>互连网</A>&nbsp;&nbsp;浏览次数：<SPAN 
      id=hits>185</SPAN>&nbsp;&nbsp;</DIV><!--引用地址-->
      <DIV class=content_text id=content>
      <SCRIPT type=text/javascript><!--
google_ad_client = "pub-4170877871798803";
google_ad_width = 728;
google_ad_height = 90;
google_ad_format = "728x90_as";
google_ad_type = "text_image";
//2007-03-03: et00ad1
google_ad_channel = "0726147245";
google_color_border = "FFFFFF";
google_color_bg = "FFFFFF";
google_color_link = "FF0000";
google_color_text = "0066CC";
google_color_url = "000033";
//--></SCRIPT>

      <SCRIPT src="用74HC164来驱动数码管显示的麻烦.files/show_ads.js" type=text/javascript>
</SCRIPT>
      </DIV>
      <DIV class=content_text 
      id=content>用74HC164来驱动数码管显示的麻烦<BR><BR>现在使用串行移位寄存器164来显示<BR>是这样个接法：单片机TXD，RXD到其时钟数据脚，其清零端接电源。<BR>然后级联7块控制6个数码管，8个指示灯，同时单片机的TXD，RXD也被条2米长的电缆拉出接到另一路164的时钟数据脚，控制另一个3级164级联的显示电路显示3个数码管（同前面那路显示的高三位），现在的问题是，两路显示老是不正常，去掉后面这三位显示是正常的，接上则不行，在串行数据端（RXD）接个151电容到地会好些，但是有时还是会出问题，不知是负载不平衡引起的呢，还是怎的？<BR>==============================<BR>实际经验:<BR>1、用164的实际大型显示屏一般都使用74LS164，并且不用串限流电阻，实测电流约8~13mA，亮度正好。一定不要用HC、HCT的芯片。<BR><BR>2、每8片164做成一块板子，用一片74LS04接时钟信号，注意各板之间时钟信号是串接！5V电源引线要并接，要够粗，并电容。<BR><BR>3、每块板子之间由于距离很近不需要考虑阻抗匹配问题。<BR><BR>4、从CPU出来的信号要用74LS04缓冲，由于第一级信号线一般比较长，所以需要考虑阻抗匹配，有很多方法：串电阻、并电阻、并电容、上下拉、阻容网络等，一般串电阻比较简单有效。<BR><BR>5、信号速率不是引起SI的主要原因，信号的电压摆率才是本质！因此一定不要用HC、HCT的芯片，如果一定要用，输出就一定要串电阻，降低其电压摆率。<BR><BR>6、本电路工作可靠，实际用的信号线长达40米，串接几十块板子也没有问题。用74HC164来驱动数码管显示的麻烦-技术文章用74HC164来驱动数码管显示的麻烦</DIV>
      <SCRIPT type=text/javascript>
function ImgZoom(Id)//重新设置图片大小 防止撑破表格
{
var w = $(Id).width;
var m = 550;
if(w < m)
{
return;
}
else
{
var h = $(Id).height;
$(Id).height = parseInt(h*m/w);
$(Id).width = m;
}
}
window.onload = function()
{
var Imgs = $("content").getElementsByTagName("img");
var i=0;
for(;i<Imgs.length;i++)
{
ImgZoom(Imgs[i]);
}
}
</SCRIPT>
<!--自定义字段//-->
      <TABLE cellSpacing=0 cellPadding=0 width="100%" align=center>
        <TBODY></TBODY></TABLE><!--自定义字段\\--><!--分页-->
      <DIV class=td_center></DIV>
      <DIV class=mar_10>
      <SCRIPT type=text/javascript><!--
google_ad_client = "pub-4170877871798803";
google_ad_width = 728;
google_ad_height = 90;
google_ad_format = "728x90_as";
google_ad_type = "text_image";
//2007-03-03: et00ad2
google_ad_channel = "1788660641";
google_color_border = "FFFFFF";
google_color_bg = "FFFFFF";
google_color_link = "FF0000";
google_color_text = "0066CC";
google_color_url = "000033";
//--></SCRIPT>

      <SCRIPT src="用74HC164来驱动数码管显示的麻烦.files/show_ads.js" type=text/javascript>
</SCRIPT>
      </DIV><!--上下文-->
      <DIV class=border_1 id=pre_and_next></DIV><BR>
      <DIV class=iconbox id=par>
      <FORM id=sendmail name=sendmail action=sendmail.php><INPUT type=hidden 
      value=推荐《用74HC164来驱动数码管显示的麻烦》 name=title> <INPUT type=hidden 
      value="<a href=http://www.et00.com/article/html/article_6740.html target=_blank>用74HC164来驱动数码管显示的麻烦<br/>http://www.et00.com/article/html/article_6740.html</a>" 
      name=content> </FORM><A class=comment_icon 
      href="http://www.et00.com/article/html/article_6740.html#comment">发表评论</A>　<A 
      class=favorites_icon 
      href="javascript:window.external.addFavorite(window.location,'用74HC164来驱动数码管显示的麻烦')">加入收藏</A>　<A 
      class=friend_icon href="javascript:$('sendmail').submit();">告诉好友</A>　<A 
      class=print_icon href="javascript:window.print();">打印本页</A>　<A 
      class=close_icon href="javascript:window.close()">关闭窗口</A>　<A 
      class=top_icon 
      href="http://www.et00.com/article/html/article_6740.html#top">返回顶部</A></DIV><!--相关文章列表-->
      <DIV class=cat_title>
      <DIV class=cat_name>相关文章</DIV>
      <DIV class=cat_url><A class=more 
      href="http://www.et00.com/article/html/article_6740.html#"></A></DIV></DIV>用74HC164来驱动数码管显示的麻烦用74HC164来驱动数码管显示的麻烦-技术文章用74HC164来驱动数码管显示的麻烦
      <SCRIPT src="" type=text/javascript></SCRIPT>
       </TD>
    <TD width=10>&nbsp;</TD>
    <TD class=right_bg vAlign=top width=210>
      <DIV class=rightcats>
      <H1>最新文章</H1>
      <H2><A class=more 
      href="http://www.et00.com/article/html/article_6740.html#">更多</A></H2></DIV>
      <SCRIPT type=text/javascript><!--
google_ad_client = "pub-4170877871798803";
google_ad_width = 120;
google_ad_height = 240;
google_ad_format = "120x240_as_rimg";
google_cpa_choice = "CAAQ9fafnAIaCBYCGgzjmaNTKKG_93M";
google_ad_channel = "6668386635";
//-->
</SCRIPT>

      <SCRIPT src="用74HC164来驱动数码管显示的麻烦.files/show_ads.js" type=text/javascript>
</SCRIPT>

      <DIV class=rightcats>
      <H1>推荐文章</H1>
      <H2><A class=more 
      href="http://www.et00.com/article/search.php?catid=59&amp;posid=1&amp;search=1">更多</A></H2></DIV>
      <SCRIPT type=text/javascript><!--
google_ad_client = "pub-4170877871798803";
google_ad_width = 120;
google_ad_height = 240;
google_ad_format = "120x240_as_rimg";
google_cpa_choice = "CAAQ8fOujAIaCOun9lVDwMlHKJPM93M";
google_ad_channel = "3421990869";
//-->
</SCRIPT>

      <SCRIPT src="用74HC164来驱动数码管显示的麻烦.files/show_ads.js" type=text/javascript>
</SCRIPT>

      <DIV class=rightcats>
      <H1>热点文章</H1>
      <H2><A class=more 
      href="http://www.et00.com/article/search.php?catid=59&amp;ordertype=3&amp;search=1">更多</A></H2></DIV>
      <LI>
      <SCRIPT type=text/javascript><!--
google_ad_client = "pub-4170877871798803";
google_ad_width = 160;
google_ad_height = 600;
google_ad_format = "160x600_as";
google_ad_type = "text_image";
//2007-03-03: et00ad3
google_ad_channel = "4480390347";
google_color_border = "FFFFFF";
google_color_bg = "FFFFFF";
google_color_link = "FF0000";
google_color_text = "0066CC";
google_color_url = "000033";
//--></SCRIPT>

      <SCRIPT src="用74HC164来驱动数码管显示的麻烦.files/show_ads.js" type=text/javascript>
</SCRIPT>
      </LI></TD></TR></TBODY></TABLE>
<SCRIPT src="用74HC164来驱动数码管显示的麻烦.files/show_js.htm" 
type=text/javascript></SCRIPT>

<TABLE cellSpacing=0 cellPadding=0 width=980>
  <TBODY>
  <TR>
    <TD height=10></TD></TR></TBODY></TABLE>
<DIV class=footer>
<UL>
  <LI class=footer_border_1>
  <DIV class=footer_border_2><A href="http://www.et00.com/page/aboutus.html" 
  target=_blank>关于我们</A> | <A href="http://www.et00.com/page/announce.html" 
  target=_blank>版权声明</A> | <A href="http://www.et00.com/page/contactus.html" 
  target=_blank>联系我们</A> | <A href="http://www.et00.com/link/" 
  target=_blank>友情链接</A> </DIV>
  <LI>传感技术存储技术EDA/自动化PCB消费电子电源技术单片机技术IC仪器仪表接口电路模拟技术新品发布无线技术嵌入式设计IC/元器件汽车电子通信网络LED光电显示控制技术EDA测量测试实例方案微处理器/DSP音响技术集成电路家用电器可编程技术数码专栏计算机技术SMT 

  <LI>
  <SCRIPT src="用74HC164来驱动数码管显示的麻烦.files/stat.htm" 
type=text/javascript></SCRIPT>
  &nbsp;&nbsp;&nbsp;&nbsp;<A href="http://www.miibeian.gov.cn/" 
  target=_blank>豫ICP备07002402号</A> </LI></UL></DIV>
<SCRIPT src="用74HC164来驱动数码管显示的麻烦.files/Std_StranJF.Js" 
type=text/javascript></SCRIPT>

<SCRIPT language=JavaScript src="用74HC164来驱动数码管显示的麻烦.files/click.htm" 
type=text/javascript charset=gb2312></SCRIPT>
</DIV></BODY></HTML>

⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -