127 lines
8.1 KiB
HTML
127 lines
8.1 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="" 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>END</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" type="text/javascript">
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</script>
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</head>
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<body>
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<h1 class="code">END</h1>
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<div class="ImagePlusCaption">
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<div class="Col2">
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<p>
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<img src="../../graphics/pgm_icon1.gif" border="0" alt="BS1 icon" title="BS1 icon" />
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<img src="../../graphics/pgm_icon2.gif" border="0" alt="BS2 icon" title="BS2 icon" />
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<img src="../../graphics/pgm_icon2e.gif" border="0" alt="BS2e icon" title="BS2e icon" />
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<img src="../../graphics/pgm_icon2sx.gif" border="0" alt="BS2sx icon" title="BS2sx icon" />
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<img src="../../graphics/pgm_icon2p.gif" border="0" alt="BS2p icon" title="BS2p icon" />
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<img src="../../graphics/pgm_icon2pe.gif" border="0" alt="BS2pe icon" title="BS2pe icon" />
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<img src="../../graphics/pgm_icon2px.gif" border="0" alt="BS2px icon" title="BS2px icon" />
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</p>
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</div>
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<p style="text-align: right;"> </p>
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<p> </p>
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</div>
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<p class="clear"> </p>
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<p> </p>
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<p class="PlainText">Syntax: <span class="keyword_in_text">END</span></p>
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<h2>Function</h2>
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<p class="PlainText">End the program, placing the BASIC Stamp into low-power mode indefinitely. This
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is equivalent to having a program that does not loop continuously; once the BASIC
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Stamp reaches the end of the PBASIC program, it enters low-power mode indefinitely.
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The <span class="keyword_in_text">END</span> command is optional, but recommended.</p>
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<h2>Quick Facts</h2>
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<table width="100%" cellpadding="4" cellspacing="0" border="1">
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<tr align="center" bgcolor="#CFCFCF">
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<td width="23%"> </td>
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<td width="11%">BS1</td>
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<td width="11%">BS2</td>
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<td width="11%">BS2e</td>
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<td width="11%">BS2sx</td>
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<td width="11%">BS2p</td>
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<td width="11%">BS2pe</td>
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<td width="11%">BS2px</td>
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</tr>
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<tr align="center">
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<td bgcolor="#CFCFCF">Approximate current draw @ 5 VDC during Run *</td>
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<td>1 mA</td>
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<td>3 mA</td>
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<td>25 mA</td>
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<td>60 mA</td>
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<td>40 mA</td>
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<td>15 mA</td>
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<td>55 mA</td>
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</tr>
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<tr align="center">
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<td bgcolor="#CFCFCF">Approximate current draw @ 5 VDC during END *</td>
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<td>25 µA</td>
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<td>50 µA</td>
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<td>200 µA</td>
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<td>500 µA</td>
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<td>350 µA</td>
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<td>36 µA</td>
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<td>450 µA</td>
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</tr>
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<tr>
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<td align="center" bgcolor="#CFCFCF">Related Commands</td>
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<td align="center" colspan="1">
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<p colspan="1" align="center"><a href="NAP.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">NAP</a>, <a href="SLEEP.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">SLEEP</a></p>
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</td>
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<td align="center" colspan="3">
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<p colspan="3" align="center"><a href="NAP.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">NAP</a>, <a href="SLEEP.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">SLEEP</a>, <a href="STOP.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">STOP</a></p>
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</td>
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<td align="center" colspan="3">
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<p colspan="3" align="center"><a href="NAP.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">NAP</a>, <a href="SLEEP.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">SLEEP</a>, <a href="STOP.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">STOP</a>, <a href="POLLWAIT.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">POLLWAIT</a></p>
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</td>
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</tr>
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</table>
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<p>*Note: This is an approximate value, not including loads on the I/O pins</p>
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<h2>Explanation</h2>
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<p class="PlainText"><span class="keyword_in_text">END</span> puts the BASIC Stamp into its inactive, low-power mode. In this
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mode the Stamp's current draw (excluding loads driven by the I/O pins) is
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reduced to the amount shown above. <span class="keyword_in_text">END</span> keeps the BASIC Stamp
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inactive until the reset line is activated, the power is cycled off and back on
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or the PC downloads another program.</p>
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<p class="PlainText">During execution of power conserving commands (<span class="keyword_in_text">END</span>, <span class="keyword_in_text">NAP</span>, <span class="keyword_in_text">POLLWAIT</span>, and <span class="keyword_in_text">SLEEP</span>), current will occasionally be interrupted
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on I/O pins for about 18 ms durations (60 µs on the BS2pe). The reason is that the
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watchdog-timer reset that awakens the BASIC Stamp during these commands also causes all of the pins to
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switch to input mode for approximately 18 ms (60 µs on the BS2pe). When the interpreter
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firmware regains control of the processor, it restores the I/O direction dictated
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by your program.</p>
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<p class="PlainText">If you plan to use <span class="keyword_in_text">END</span>, <span class="keyword_in_text">NAP</span>, <span class="keyword_in_text">POLLWAIT</span>, or <span class="keyword_in_text">SLEEP</span> in your programs,
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make sure that your loads can tolerate these power outages. The simplest solution
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is often to connect resistors high or low (to +5V or ground) as appropriate to
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ensure a continuing supply of current during the reset. </p>
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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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