90 lines
7.9 KiB
HTML
90 lines
7.9 KiB
HTML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns:MadCap="http://www.madcapsoftware.com/Schemas/MadCap.xsd" MadCap:lastBlockDepth="6" MadCap:lastHeight="94" MadCap:lastWidth="853" MadCap:disableMasterStylesheet="true" MadCap:tocPath="Connection Troubleshooting" MadCap:InPreviewMode="false" MadCap:PreloadImages="false" MadCap:RuntimeFileType="Topic" MadCap:TargetType="WebHelp" lang="en-us" xml:lang="en-us" MadCap:PathToHelpSystem="../../" MadCap:HelpSystemFileName="Default.xml" MadCap:SearchType="Stem">
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<head><title>Latency Timer Settings</title>
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<link href="../SkinSupport/MadCap.css" rel="stylesheet" />
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<link href="../Resources/Stylesheets/BSE_Help.css" rel="stylesheet" />
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<script src="../SkinSupport/MadCapAll.js">
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</script>
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</head>
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<body>
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<div class="MCBreadcrumbsBox_0"><span class="MCBreadcrumbsPrefix">You are here: </span><a class="MCBreadcrumbsLink" href="TFAQ.htm">Connection Troubleshooting</a><span class="MCBreadcrumbsDivider"> > </span><span class="MCBreadcrumbs">Latency Timer Settings</span>
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</div>
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<h1>Latency Timer Settings</h1>
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<p>If you are using a BASIC Stamp development board with a USB connector, or a serial board with a Parallax USB to Serial Adapter, you may need to adjust your computer's latency timer settings if any of these are true:</p>
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<ul>
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<li value="1">The <a href="RunIdTest.htm" target="" title="" alt="" class="MCXref_0">Run/Identify Test</a> shows no Device Type, but a "Yes" in both the Loopback and Echo columns, or a "Yes" only in the Echo column.</li>
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<li value="2">You have passed the Run/Identify test but when you try to download a program with Run/Run, you get a "No BASIC Stamps Found" message. </li>
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<li value="3">You are able to download short programs, but not long ones. </li>
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<li value="4">You are able to program intermittently, but sometimes it fails.</li>
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</ul>
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<h2>How to adjust the Latency Timer settings</h2>
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<ul>
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<li class="Checklist" value="1">Using the Identification window from the <a href="RunIdTest.htm" target="" title="" alt="" class="MCXref_0">Run/Identify Test</a> procedure, make note of the COM port number in the row where it displays a "Yes" for Echo.</li>
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<li class="Checklist" value="2">Find that COM port in Device Manager.</li>
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</ul>
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<div class="ListIndent">
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<div class="MCDropDown">
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<div class="MCDropDownHead_0"><a class="MCDropDownHotSpot_0" href="javascript:void(0);" id="MCDropDownHotSpot_4207630684_0" onclick="FMCDropDown( this ); return false;"><img style="border: none;margin-right: 2px;" src="../SkinSupport/DropDownClosed.gif" MadCap:altsrc="../SkinSupport/DropDownOpen.gif" onload="if ( typeof( FMCPreloadImage ) == 'function' ) { FMCPreloadImage( '../SkinSupport/DropDownOpen.gif' ); }" class="MCDropDownIcon" />Finding your Ports List in your computer's Device Manager</a>
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</div>
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<div class="MCDropDownBody" id="MCDropDownBody_4207630684_0" style="display: none;">
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<ul style="list-style-type: circle;">
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<li value="1"><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">Windows 2K<img style="border: none;margin-left: 5px;" src="../SkinSupport/ExpandingClosed.gif" MadCap:altsrc="../SkinSupport/ExpandingOpen.gif" onload="if ( typeof( FMCPreloadImage ) == 'function' ) { FMCPreloadImage( '../SkinSupport/ExpandingOpen.gif' ); }" class="MCExpandingIcon" /></a><span class="MCExpandingBody" style="display: none;">: Start Menu > Settings > Control Panel > System > click Hardware Tab > Device Manager... > expand Ports (COM & LPT)</span></span>
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</li>
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<li value="2"><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">Windows XP<img style="border: none;margin-left: 5px;" src="../SkinSupport/ExpandingClosed.gif" MadCap:altsrc="../SkinSupport/ExpandingOpen.gif" onload="if ( typeof( FMCPreloadImage ) == 'function' ) { FMCPreloadImage( '../SkinSupport/ExpandingOpen.gif' ); }" class="MCExpandingIcon" /></a><span class="MCExpandingBody" style="display: none;">: Start Menu > right-click My Computer > Properties > click Hardware Tab > Device Manager > expand Ports (COM & LPT)</span></span>
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</li>
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<li value="3"><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">Windows Vista or Windows 7<img style="border: none;margin-left: 5px;" src="../SkinSupport/ExpandingClosed.gif" MadCap:altsrc="../SkinSupport/ExpandingOpen.gif" onload="if ( typeof( FMCPreloadImage ) == 'function' ) { FMCPreloadImage( '../SkinSupport/ExpandingOpen.gif' ); }" class="MCExpandingIcon" /></a><span class="MCExpandingBody" style="display: none;">: Start Menu (Windows icon) > right-click Computer > Properties > Device Manager (left pane) > expand Ports (COM & LPT)</span></span>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<ul>
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<li class="Checklist" value="1">Right-click on the COM port, and select Properties</li>
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</ul>
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<p class="PlainTextIndent">
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<img src="../Resources/Images/PortProperties.png">
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</img>
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</p>
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<ul>
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<li class="Checklist" value="1">Under the Port Settings tab, click the Advanced button. </li>
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<li class="Checklist" value="2">In the Advanced Settings window, change the Latency Timer setting to 1 and then click OK.</li>
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</ul>
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<p>
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<img src="../Resources/Images/LatentcyTimer.png" />
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</p>
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<ul>
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<li class="Checklist" value="1">Now try the <a href="RunIdTest.htm" target="" title="" alt="" class="MCXref_0">Run/Identify Test</a> again, or try downloading a program to your BASIC Stamp.</li>
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<li class="Checklist" value="2">If this did not help, <a href="../HomeTopics/Resources.htm#Contact_Parallax" target="" title="" alt="" class="MCXref_0">Contact Parallax</a> Tech Support for assistance..</li>
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</ul>
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<div class="Col2">
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<div class="MasterFoot">
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<p MadCap:conditions="BSEconditions.BSEWebHelp (Primary)-INCLUDE"><a href="../HomeTopics/HomePage.htm">Go to Welcome page</a>
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</p>
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</div>
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</div>
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<div class="Col2">
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<div class="MasterFoot">
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<p style="text-align: right;"><span class="ContactInfoProjectName">BASIC Stamp Help</span> <![CDATA[ ]]><span class="ContactInfoVersion#">Version 2.5.4</span> <![CDATA[ ]]></p>
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<p style="text-align: right;">Copyright © <span class="ContactInfoCompanyName">Parallax Inc.</span></p>
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<p style="text-align: right;"><span class="SystemShortDate">8/8/2012</span>
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</p>
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</div>
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</div>
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