91 lines
4.0 KiB
HTML
91 lines
4.0 KiB
HTML
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<?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>COMPARE Example</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>COMPARE Example</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_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;">Sytnax: <a href="../Commands/COMPARE.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">COMPARE</a></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 class="PlainText"> </p><pre class="BScode" xml:space="preserve">' COMPARE.BPX
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' This example demonstrates the use of the COMPARE command.
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' Connect two variable voltage sources (0 to 5 volts) on I/O pins
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' P1 and P2 (or a button on each pin connected to ground). Run the
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' program and watch the Debug Terminal display as you adjust the
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' variable voltage or press the buttons.
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' {$STAMP BS2px}
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' {$PBASIC 2.5}
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#IF $STAMP <> BS2PX #THEN
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#ERROR "This program requires a BS2px."
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#ENDIF
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result VAR Bit
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Setup:
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' P0 = output, all others = input
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CONFIGPIN DIRECTION, %0000000000000001
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' Enable pull-ups on P1 and P2
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CONFIGPIN PULLUP, %0000000000000110
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DEBUG CLS,
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"BS2px Comparator Demonstration", CR,
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"==============================", CR,
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CR,
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"Input Voltage: P1 > P2", CR,
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"Output State: P0 = 0"
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Main:
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DO ' Display P1/P2 comparison
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COMPARE 1, result
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IF (result = 0) THEN
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DEBUG CRSRXY, 18, 3, ">"
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ELSE
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DEBUG CRSRXY, 18, 3, "<"
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ENDIF
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DEBUG CRSRXY, 19, 4, BIN1 result
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LOOP</pre>
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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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<script type="text/javascript">/* <![CDATA[ */
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var _gaq = _gaq || [];
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_gaq.push(['_setAccount', 'UA-285614-1']);
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_gaq.push(['_trackPageview']);
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(function() {
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var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
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ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
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var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
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})();
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/* ]]> */</script>
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<script type="text/javascript" src="../../SkinSupport/MadCapBodyEnd.js">
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</script>
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</body>
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</html>
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