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[原创]Linux 串口编程.htm 23KB

[转]Linux下串口编程入门--程序人生.htm 34KB

<html> <head> <meta http-equiv="Content-Language" content="zh-CN" /> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <meta name="generator" content="oblog" /> <meta name="author" content="liuzhu," /> <meta name="keyword" content="[转]Linux下串口编程入门" /> <meta name="description" content="          Linux 下串口编程入门  500)this.style.width=500;">  　    500)this." /> <title>[转]Linux下串口编程入门--程序人生</title> <link href="..\..\..\..\OblogStyle\OblogUserDefault.css" rel="stylesheet" type="text/css" /> </head> <body leftmargin=0 topmargin=0 marginwidth=0 marginheight=0><table height=24 cellSpacing=0 cellPadding=0 width='100%' align=center bgColor=#ffffff border=0><tr><td><iframe scrolling=no marginWidth=0 marginHeight=0 src='/logintop.asp' frameBorder=0 width='100%' height='100%'></iframe></td></tr></table> <script src="..\..\..\..\inc\main.js" type="text/javascript"></script> <LINK href="/skin/blue/styles.css" type=text/css rel=stylesheet> <DIV id=wrapper> <DIV id=innerWrapper> <DIV id=header> <DIV id=innerHeader><SPAN id=blogtitle>程序人生</SPAN><BR>We have dream cause of dreaming, we realize the dream cause of doing.</DIV></DIV> <DIV id=mainWrapper> <DIV class=sidebar id=sidebar> <H1>Calendar</H1> <P><div id="calendar"><table width='100%'> <caption>December 2005</caption><tr> <th abbr=Sunday>日</th> <th abbr=Monday>一</th> <th abbr=Tuesday>二</th> <th abbr=Wednesday>三</th> <th abbr=Thursday>四</th> <th abbr=Friday>五</th> <th abbr=Saturday>六</th></tr><tr> <td align=center> </td> <td align=center> </td> <td align=center> </td> <td align=center> </td> <td align=center>1</td> <td align=center>2</td> <td align=center>3</td> </tr><tr> <td align=center>4</td> <td align=center>5</td> <td align=center>6</td> <td align=center>7</td> <td align=center><a href='/user1/3122/archives/2005/31328.shtml'>8</a></td> <td align=center>9</td> <td align=center>10</td> </tr><tr> <td align=center>11</td> <td align=center>12</td> <td align=center>13</td> <td align=center>14</td> <td 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title="发表于2005-11-18 16:42:00">[转]在Delphi中用ADSI创建</a></li> <li><a href="/user1/3122/archives/2005/19736.shtml" title="发表于2005-11-18 16:32:00">[转]Delphi控制Excel20</a></li> <li><a href="/user1/3122/archives/2005/19730.shtml" title="发表于2005-11-18 16:28:00">[转]Delphi面向对象编程的20</a></li> <li><a href="/user1/3122/archives/2005/17995.shtml" title="发表于2005-11-14 17:22:00">[转]Delphi下的编译指令</a></li> </ul></div> </P> <H1>Replies</H1> <P> </P> <H1>search</H1> <P><div id="search"><form name='search' method='post' action='/list.asp?userid=3122' target="_blank"><select name='selecttype' id='selecttype'><option value='topic' selected>日志标题</option><option value='logtext'>日志内容</option></select><br /><input name='keyword' type='text' id='keyword' size='16' maxlength='40'> <input type='submit' name='Submit' value='搜索'></form></div> </P> <H1>FriendLink</H1> <P><div id="links"><A href="/user1/3125/index.shtml" target=_blank>PEMP2.0开发团队</A></div> </P> <H1>Blog Info</H1> <P><div id="info"><ul> <li>日志总数:14</li> <li>评论数量:0</li> <li>留言数量:1</li> <li>访问次数:<span id="site_count"></span><Script src="/count.asp?action=site&id=3122"></Script></li> <li>本站:liuzhu.blogercn.com</li> <li><a href="/user_friends.asp?action=saveadd&friendname=liuzhu" target="_blank">加为好友</a>　<a href="javascript:openScript('/user_pm.asp?action=send&incept=liuzhu',450,400)">发送短信</a></li></ul></div> </P> <P> </P></DIV> <DIV id=innerContent> <DIV class=announce> <DIV class=announce-content> <DIV><div id="placard"><P><IMG src="/images/emot/face1.gif">转贴、原创、交流<IMG src="/images/emot/face2.gif"></P></div> </DIV><div id="saveurl"><a href="/user1/3122/index.shtml">首页</a> | <a href="/go.asp?action=up&logid=31328&userid=3122">上一篇</a> | <a href="/go.asp?action=down&logid=31328&userid=3122">下一篇</a></div> <DIV class=textbox> <DIV class=textbox-title> <H4>[转]Linux下串口编程入门</H4> <DIV class=textbox-label>[ 2005-12-8 14:22:00 | By: liuzhu ]</DIV></DIV> <DIV class=textbox-content> <TABLE id=content-table cellSpacing=0 cellPadding=0 width="100%" border=0> <TBODY> <TR vAlign=top> <TD width="100%"> <TABLE cellSpacing=0 cellPadding=0 width=901 border=0> <TBODY> <TR vAlign=top> <TD width=894> <H1>Linux 下串口编程入门</H1> <P><img src="http://www.ibm.com/i/c.gif" width=1 onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="javascript:if(this.width>500)this.style.width=500;"></P></TD> <TD class=no-print width=7>　</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE> <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0> <TBODY> <TR vAlign=top> <TD width=10><img src="http://www.ibm.com/i/c.gif" width=10 onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="javascript:if(this.width>500)this.style.width=500;"></TD> <TD width="100%"><A href="#author">左锦</A>, 副总裁, 南沙资讯科技园<BR>　 <P>2003 年 7 月 03 日</P> <BLOCKQUOTE> <P>Linux 操作系统从一开始就对串行口提供了很好的支持，本文就 Linux 下的串行口通讯编程进行简单的介绍。</P></BLOCKQUOTE> <P><A name=N1003C><SPAN class=atitle>串口简介</SPAN></A></P> <P>串行口是计算机一种常用的接口，具有连接线少，通讯简单，得到广泛的使用。常用的串口是 RS-232-C 接口（又称 EIA RS-232-C）它是在 1970 年由美国电子工业协会（EIA）联合贝尔系统、调制解调器厂家及计算机终端生产厂家共同制定的用于串行通讯的标准。它的全名是"数据终端设备（DTE）和数据通讯设备（DCE）之间串行二进制数据交换接口技术标准"该标准规定采用一个 25 个脚的 DB25 连接器，对连接器的每个引脚的信号内容加以规定，还对各种信号的电平加以规定。传输距离在码元畸变小于 4% 的情况下，传输电缆长度应为 50 英尺。 </P> <P>Linux 操作系统从一开始就对�

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