73 lines
11 KiB
HTML
73 lines
11 KiB
HTML
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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="" 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>Connection Troubleshooting</title>
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<link href="../SkinSupport/MadCap.css" rel="stylesheet" />
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<div class="MCBreadcrumbsBox_0"><span class="MCBreadcrumbsPrefix">You are here: </span><span class="MCBreadcrumbs">Connection Troubleshooting</span>
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</div>
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<h1>Connection Troubleshooting</h1>
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<p>This is the "triage" area for troubleshooting the programming connection between your computer and your BASIC Stamp development board.</p>
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<p> </p>
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<p>Let's rule out the most common causes of communications failure first:</p>
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<ul>
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<li class="Checklist" value="1"><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">Loose connections<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;">: Double-check the connections between your computer and your programming cable, the Parallax USB to Serial Adapter if you are using one, and the development board.</span></span>
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</li>
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<li class="Checklist" value="2"><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">Misconnected BASIC Stamp<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;">: If you are using a Board of Education, double-check how to <span class="MCPopup"><a href="javascript:void(0);" MadCap:src="InsertBS2popup.htm" onclick="FMCPopup( event, this ); return false;" class="MCXref_0" alt="Open in popup window" title="Open in popup window">Insert the BASIC Stamp module</a></span> in its socket.</span></span>
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</li>
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<li class="Checklist" value="3"><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">No power<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;">: double-check the power supply that you have connected to your board. (See <a href="PowerSupplies.htm" target="" title="Open "Power Supplies" in popup window" alt="Open "Power Supplies" in popup window" class="MCXref_0">Power Supplies</a> for options). If your board has a power switch, make sure it is switched on and the power indicator is lit. If you are using a 9V battery, try a fresh one. If you are using a battery pack, make sure the batteries are all inserted into the pack correctly; try fresh batteries. If you are using a wall-mount supply, make sure the wall outlet is not turned off at a wall switch. If you have a voltmeter, use it to measure the voltage supplied by the battery pack or wall-mount to rule out defective power supply hardware.</span></span>
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</li>
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<li class="Checklist" value="4"><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">Software version<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;">: Make sure you are using the latest version of the BASIC Stamp Editor Software. You may check for a later version at <a href="http://www.parallax.com/basicstampsoftware" target="_blank" title="Open website in new window" alt="Open website in new window">www.parallax.com/basicstampsoftware</a>.</span></span>
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</li>
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<li class="Checklist" value="5"><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">USB drivers<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;">: If you are using a Parallax USB connection, you may need to update your USB drivers. See the <a href="USBdrivers.htm" target="" title="" alt="" class="MCXref_0">USB Drivers</a> page for help.</span></span>
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</li>
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<li class="Checklist" value="6"><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">USB ports freeze after disconnecting from USB 3.0 port: <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;">USB 2.0 ports are recommended for BASIC Stamp boards. On some computers, the internal USB hub will freeze when disconnecting a USB 2.0 device from a USB 3.0 port. This may cause all USB ports on the computer to become unresponsive, requiring a reboot of the computer to remedy the situation. System updates from your computer manufacturer may correct the problem.USB 3.0 ports can sometimes be identified by a blue tab inside the socket.<br /><img src="../Resources/Images/USB_3_258x115.jpg" title="USB 3.0 ports have a blue tab inside." alt="USB 3.0 ports have a blue tab inside." style="padding-top: 5px;width: 258;height: 115;" /></span></span>
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</li>
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<li class="Checklist" value="7">
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<p><span class="MCExpanding"><a href="javascript:void(0);" class="MCExpandingHead_0" onclick="FMCExpand( this ); return false;">Beware of non-Parallax USB to Serial Adapters<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;">: Not every brand of USB to Serial Adapter supports the timing precision needed for BASIC Stamp programming. Some known-incompatible brands are Belkin and Gigaware. Keyspan #USA19-HS is known to be compatible. You can order an inexpensive Parallax USB to Serial Adapter (#28030) from <a href="http://www.parallax.com/" target="_blank" title="Open website in new window" alt="Open website in new window">www.parallax.com</a>.</span></span>
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</p>
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</li>
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</ul>
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<p class="PlainText">Okay, if that didn't solve the problem, let's keep going:</p>
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<ul>
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<li class="Checklist" value="1">If you are able to program your USB-connected board sometimes, but it fails sometimes or requires several tries (and you are SURE the power supply is not the problem), you may need to change your computer's <a href="LatencyTimer.htm" target="" title="" alt="" class="MCXref_0">Latency Timer Settings</a>.</li>
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<li class="Checklist" value="2">If you are using a Parallax BASIC Stamp development board (such as a Board of Education, HomeWork Board, or Professional Development Board), and your PC cannot communicate with your BASIC Stamp, go to the <a href="RunIdTest.htm" target="" title="" alt="" class="MCXref_0">Run/Identify Test</a> page.</li>
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<li class="Checklist" value="3">If you are using a USB-based board or USB to Serial Adapter, and repeated BASIC Stamp resets are interfering with your program, see the <a href="UsbBoardResets.htm" target="" title="" alt="" class="MCXref_0">USB Resets BASIC Stamp</a> page.</li>
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<li class="Checklist" value="4">If you are using a development board and/or BASIC Stamp OEM that you assembled yourself, there are a number of tests that can be performed best with the help of the Parallax Tech Support crew, and a voltmeter. Please <a href="../HomeTopics/Resources.htm#Contact_Parallax" target="" title="" alt="" class="MCXref_0">Contact Parallax</a> Tech Support.</li>
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</ul>
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<p> </p>
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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 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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