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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0037)http://www.mcu361.com/News.asp?Id=475 -->
<HTML><HEAD><TITLE>基于AT89C51單片機的CAN-RS232通信轉換模塊的設計與實現 -- 開發板精品網---FPGA開發板，DSP開發板，ARM開發板，CPLD開發板，51開發板,MSP430開發板</TITLE>
<SCRIPT>
SEP_PADDING = 5;
HANDLE_PADDING = 7;
var EditMode=false;
var SourceMode=true;
var h;
var w;
var l;
var t;
var topMar = 4;
var leftMar = -2;
var spaces = 1;
var isvisible;
var global = window.document
global.fo_currentMenu = null
global.fo_shadows = new Array
function HideMenu() {
var mX;
var mY;
var vDiv;
var mDiv;
if (isvisible == true){
vDiv = document.all("menuDiv");
mX = window.event.clientX + document.body.scrollLeft;
mY = window.event.clientY + document.body.scrollTop;
if ((mX < parseInt(vDiv.style.left)) || (mX > parseInt(vDiv.style.left)+vDiv.offsetWidth) || (mY < parseInt(vDiv.style.top)-h) || (mY > parseInt(vDiv.style.top)+vDiv.offsetHeight)){
vDiv.style.visibility = "hidden";
isvisible = false;
}
}
}
function ShowMenu(vMnuCode,tWidth) {
vSrc = window.event.srcElement;
vMnuCode = "<TABLE id='submenu' CELLSPACING=1 cellpadding=3 STYLE='width:"+tWidth+"' onmouseout='HideMenu()'><TR><TD >" + vMnuCode + "</TD></TR></TABLE>";
h = vSrc.offsetHeight;
w = vSrc.offsetWidth;
l = vSrc.offsetLeft + leftMar+4;
t = vSrc.offsetTop + topMar + h + spaces-2;
vParent = vSrc.offsetParent;
while (vParent.tagName.toUpperCase() != "BODY")
{
l += vParent.offsetLeft;
t += vParent.offsetTop;
vParent = vParent.offsetParent;
}
menuDiv.innerHTML = vMnuCode;
menuDiv.style.top = t;
menuDiv.style.left = l;
menuDiv.style.visibility = "visible";
isvisible = true;
makeRectangularDropShadow(submenu, 4)
}
function StranBody(fobj)
{
if(typeof(fobj)=="object"){var obj=fobj.childNodes}
else
{
var tmptxt=zoom_Obj.innerHTML.toString()
if(tmptxt.indexOf("簡")<0)
{
BodyIsFt=1
zoom_Obj.innerHTML=StranText(tmptxt,0,1)
}else{
BodyIsFt=0
zoom_Obj.innerHTML=StranText(tmptxt,1,1)
}
setCookie(JF_cn,BodyIsFt,7)
var obj=document.body.childNodes
}
for(var i=0;i<obj.length;i++){
var OO=obj.item(i)
if("||BR|HR|TEXTAREA|".indexOf("|"+OO.tagName+"|")>0||OO==zoom_Obj)continue;
if(OO.title!=""&&OO.title!=null)OO.title=StranText(OO.title);
if(OO.alt!=""&&OO.alt!=null)OO.alt=StranText(OO.alt);
if(OO.tagName=="INPUT"&&OO.value!=""&&OO.type!="text"&&OO.type!="hidden")OO.value=StranText(OO.value);
if(OO.nodeType==3){OO.data=StranText(OO.data)}
else StranBody(OO)
}
}
function makeRectangularDropShadow(el, size)
{
var i;
for (i=size; i>0; i--)
{
var rect = document.createElement('div');
var rs = rect.style
rs.position = 'absolute';
rs.left = (el.style.posLeft + i) + 'px';
rs.top = (el.style.posTop + i) + 'px';
rs.width = el.offsetWidth + 'px';
rs.height = el.offsetHeight + 'px';
rs.zIndex = el.style.zIndex - i;
var opacity = 1 - i / (i + 1);
rs.filter = 'alpha(opacity=' + (100 * opacity) + ')';
el.insertAdjacentElement('afterEnd', rect);
global.fo_shadows[global.fo_shadows.length] = rect;
}
}
function showsubmenu(sid)
{
whichEl = eval("submenu" + sid);
imgmenu = eval("imgmenu" + sid);
if (whichEl.style.display == "none"){
eval("submenu" + sid + ".style.display=\"\";");
imgmenu.background="Images/Admin/Admin20051011.gif";
}else{
eval("submenu" + sid + ".style.display=\"none\";");
imgmenu.background="Images/Admin/Admin20051000.gif";
}
}
function CheckAll(form){
for (var i=0;i<form.elements.length;i++){
var e = form.elements[i];
if (e.name != 'chkall') e.checked = form.chkall.checked;
}
}
function JTPYStr(){
return '';
}
function FTPYStr(){
return '';
}
function Traditionalized(cc){
var str='',ss=JTPYStr(),tt=FTPYStr();
for(var i=0;i<cc.length;i++)
{
if(cc.charCodeAt(i)>10000&&ss.indexOf(cc.charAt(i))!=-1)str+=tt.charAt(ss.indexOf(cc.charAt(i)));
else str+=cc.charAt(i);
}
return str;
}
function Simplized(cc){
var str='',ss=JTPYStr(),tt=FTPYStr();
for(var i=0;i<cc.length;i++)
{
if(cc.charCodeAt(i)>10000&&tt.indexOf(cc.charAt(i))!=-1)str+=ss.charAt(tt.indexOf(cc.charAt(i)));
else str+=cc.charAt(i);
}
return str;
}
function cleanHtml()
{
var fonts = message.document.body.all.tags("FONT");
var curr;
for (var i = fonts.length - 1; i >= 0; i--) {
curr = fonts[i];
if (curr.style.backgroundColor == "#ffffff") curr.outerHTML= curr.innerHTML;
}
}
function FormatText(command, option){
if (!validateMode()) return;
frames.message.document.execCommand(command, true, option);
frames.message.focus();
}
function switchSysBar(Height)
{
Height = Height;
if (Height==0) {
document.all("frmTitle").style.height="200"
}
else if (Height==1) {
document.all("frmTitle").style.height="800"
}
}
function DoTitle(addTitle) {
var revisedTitle;
var currentTitle = document.MessNew.MessToName.value;
if(currentTitle=="") revisedTitle = addTitle;
else {
var arr = currentTitle.split(",");
for (var i=0; i < arr.length; i++) {
if( addTitle.indexOf(arr[i]) >=0 && arr[i].length==addTitle.length ) return;
}
revisedTitle = currentTitle+","+addTitle;
}
document.MessNew.MessToName.value=revisedTitle;
document.MessNew.MessToName.focus();
return;
}
function FormMenu(targ,selObj,restore){
var selObj = event.srcElement;
window.open(selObj.options[selObj.selectedIndex].value);
if (restore) selObj.selectedIndex=0;
}
function IsDigit(){
return ((event.keyCode >= 48) && (event.keyCode <= 57));
}
function showadv(){
if (document.Save.advshow.checked == true) {
document.getElementById("adv").style.display = "";
document.getElementById("advance").innerText="";
}else{
document.getElementById("adv").style.display = "none";
document.getElementById("advance").innerText="";
}
}
function StranText(txt,toFT,chgTxt)
{
if(txt==""||txt==null)return ""
toFT=toFT==null?BodyIsFt:toFT
if(chgTxt)txt=txt.replace((toFT?"簡":"繁"),(toFT?"繁":"簡"))
if(toFT){
return Traditionalized(txt)
}
else
{
return Simplized(txt)
}
}
function setCookie(name, value)
{
var argv = setCookie.arguments;
var argc = setCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
if(expires!=null)
{
var LargeExpDate = new Date ();
LargeExpDate.setTime(LargeExpDate.getTime() + (expires*1000*3600*24));
}
document.cookie = name + "=" + escape (value)+((expires == null) ? "" : ("; expires=" +LargeExpDate.toGMTString()));
}
function getCookie(Name)
{
var search = Name + "="
if(document.cookie.length > 0)
{
offset = document.cookie.indexOf(search)
if(offset != -1)
{
offset += search.length
end = document.cookie.indexOf(";", offset)
if(end == -1) end = document.cookie.length
return unescape(document.cookie.substring(offset, end))
}
else return ""
}
}
function doZoom(size){
document.getElementById('zoomz').style.fontSize=size+'px'
}
</SCRIPT>
<!--
strIfc = "<DIV CLASS='table-span'></DIV>"&_
"<TABLE WIDTH=770 HEIGHT=32 BORDER=0 ALIGN=center cellpadding=0 CELLSPACING=0 CLASS=Head_Table><TR>"
Dim Menu_nName,ParentnRs
Set Rs=server.createObject("Adodb.RecordSet")
Sql="select * from Tx_Menu where Menu_Flag=1 and ParentID=0 order by Menu_Order"
Rs.open sql,Conn,1,1
While Not Rs.Eof
Set Rs_n=server.createObject("Adodb.RecordSet")
Sql="select * from Tx_Menu where Menu_Flag=1 and ParentID=" & Rs("Menu_Id") & " order by Menu_Order"
Rs_n.open sql,Conn,1,1
ParentnRs=Rs_n.recordCount
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