<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <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"> <head><title>COMPARE Example</title> <link href="../../SkinSupport/MadCap.css" rel="stylesheet" /> <link href="../../Resources/Stylesheets/BSE_Help.css" rel="stylesheet" /> <script src="../../SkinSupport/MadCapAll.js" type="text/javascript"> </script> </head> <body> <h1>COMPARE Example</h1> <div class="ImagePlusCaption"> <div class="Col2"> <p> <img src="../../graphics/pgm_icon2px.gif" border="0" alt="BS2px icon" title="BS2px icon" /> </p> </div> <p style="text-align: right;">Sytnax: <a href="../Commands/COMPARE.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">COMPARE</a></p> <p> </p> </div> <p class="clear"> </p> <p class="PlainText"> </p><pre class="BScode" xml:space="preserve">' COMPARE.BPX ' This example demonstrates the use of the COMPARE command. ' Connect two variable voltage sources (0 to 5 volts) on I/O pins ' P1 and P2 (or a button on each pin connected to ground). Run the ' program and watch the Debug Terminal display as you adjust the ' variable voltage or press the buttons. ' {$STAMP BS2px} ' {$PBASIC 2.5} #IF $STAMP <> BS2PX #THEN #ERROR "This program requires a BS2px." #ENDIF result VAR Bit Setup: ' P0 = output, all others = input CONFIGPIN DIRECTION, %0000000000000001 ' Enable pull-ups on P1 and P2 CONFIGPIN PULLUP, %0000000000000110 DEBUG CLS, "BS2px Comparator Demonstration", CR, "==============================", CR, CR, "Input Voltage: P1 > P2", CR, "Output State: P0 = 0" Main: DO ' Display P1/P2 comparison COMPARE 1, result IF (result = 0) THEN DEBUG CRSRXY, 18, 3, ">" ELSE DEBUG CRSRXY, 18, 3, "<" ENDIF DEBUG CRSRXY, 19, 4, BIN1 result LOOP</pre> <div class="Col2"> <div class="MasterFoot"> <p MadCap:conditions="BSEconditions.BSEWebHelp (Primary)-INCLUDE"><a href="../../HomeTopics/HomePage.htm">Go to Welcome page</a> </p> </div> </div> <div class="Col2"> <div class="MasterFoot"> <p style="text-align: right;"><span class="ContactInfoProjectName">BASIC Stamp Help</span> <![CDATA[ ]]><span class="ContactInfoVersion#">Version 2.5.4</span> <![CDATA[ ]]></p> <p style="text-align: right;">Copyright © <span class="ContactInfoCompanyName">Parallax Inc.</span></p> <p style="text-align: right;"><span class="SystemShortDate">8/8/2012</span> </p> </div> </div> <script type="text/javascript">/* <![CDATA[ */ var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-285614-1']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); /* ]]> */</script> <script type="text/javascript" src="../../SkinSupport/MadCapBodyEnd.js"> </script> </body> </html>