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199 lines
10 KiB
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/**
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* GeSHi (C) 2004 - 2007 Nigel McNie, 2007 - 2008 Benny Baumann
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<div class="title"><a href='http://arduino.cc/en'>Arduino</a></div>
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<p><a class='wikilink' href='http://arduino.cc/en/Main/Buy'>Buy</a>
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<a class='wikilink' href='http://arduino.cc/en/Main/Software'>Download</a>
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<a class='wikilink' href='Guide_index.html'>Getting Started</a>
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<a class='wikilink' href='http://arduino.cc/en/Tutorial/HomePage'>Learning</a>
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<a class='wikilink' href='index.html'>Reference</a>
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<a class='wikilink' href='http://arduino.cc/en/Main/Hardware'>Hardware</a>
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<p><strong>Reference</strong> <a class='wikilink' href='index.html'>Language</a> | <a class='wikilink' href='Libraries.html'>Libraries</a> | <a class='wikilink' href='Comparison.html'>Comparison</a> | <a class='wikilink' href='Changes.html'>Changes</a>
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</p>
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<p class='vspace'></p><p><a class='wikilink' href='Ethernet.html'>Ethernet</a> : <em>Server</em> class
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</p>
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<p class='vspace'></p><h2>begin()</h2>
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<h4>Description</h4>
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<p>Tells the server to begin listening for incoming connections.
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</p>
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<p class='vspace'></p><h4>Syntax</h4>
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<p><em>server</em>.begin()
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</p>
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<p class='vspace'></p><h4>Parameters</h4>
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<p>None
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</p>
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<p class='vspace'></p><h4>Returns</h4>
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<p>None
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</p>
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<p class='vspace'></p><h4>Example</h4>
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<p>
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<div class='sourceblock ' id='sourceblock1'>
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<div class='sourceblocktext'><div class="arduino"><span class="co2">#include <SPI.h></span><br />
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<span class="co2">#include <Ethernet.h></span><br />
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<br />
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<span class="co1">// the media access control (ethernet hardware) address for the shield:</span><br />
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<span class="kw1">byte</span> mac<span class="br0">[</span><span class="br0">]</span> <span class="sy0">=</span> <span class="br0">{</span> <span class="nu12">0xDE</span><span class="sy0">,</span> <span class="nu12">0xAD</span><span class="sy0">,</span> <span class="nu12">0xBE</span><span class="sy0">,</span> <span class="nu12">0xEF</span><span class="sy0">,</span> <span class="nu12">0xFE</span><span class="sy0">,</span> <span class="nu12">0xED</span> <span class="br0">}</span><span class="sy0">;</span> <br />
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<span class="co1">//the IP address for the shield:</span><br />
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<span class="kw1">byte</span> ip<span class="br0">[</span><span class="br0">]</span> <span class="sy0">=</span> <span class="br0">{</span> <span class="nu0">10</span><span class="sy0">,</span> <span class="nu0">0</span><span class="sy0">,</span> <span class="nu0">0</span><span class="sy0">,</span> <span class="nu0">177</span> <span class="br0">}</span><span class="sy0">;</span> <br />
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<span class="co1">// the router's gateway address:</span><br />
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<span class="kw1">byte</span> gateway<span class="br0">[</span><span class="br0">]</span> <span class="sy0">=</span> <span class="br0">{</span> <span class="nu0">10</span><span class="sy0">,</span> <span class="nu0">0</span><span class="sy0">,</span> <span class="nu0">0</span><span class="sy0">,</span> <span class="nu0">1</span> <span class="br0">}</span><span class="sy0">;</span><br />
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<span class="co1">// the subnet:</span><br />
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<span class="kw1">byte</span> subnet<span class="br0">[</span><span class="br0">]</span> <span class="sy0">=</span> <span class="br0">{</span> <span class="nu0">255</span><span class="sy0">,</span> <span class="nu0">255</span><span class="sy0">,</span> <span class="nu0">0</span><span class="sy0">,</span> <span class="nu0">0</span> <span class="br0">}</span><span class="sy0">;</span><br />
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<br />
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<span class="co1">// telnet defaults to port 23</span><br />
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EthernetServer server <span class="sy0">=</span> EthernetServer<span class="br0">(</span><span class="nu0">23</span><span class="br0">)</span><span class="sy0">;</span><br />
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<br />
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<span class="kw1">void</span> <span class="kw3">setup</span><span class="br0">(</span><span class="br0">)</span><br />
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<span class="br0">{</span><br />
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<span class="co1">// initialize the ethernet device</span><br />
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Ethernet.<span class="kw1">begin</span><span class="br0">(</span>mac<span class="sy0">,</span> ip<span class="sy0">,</span> gateway<span class="sy0">,</span> subnet<span class="br0">)</span><span class="sy0">;</span><br />
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<br />
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<span class="co1">// start listening for clients</span><br />
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server.<span class="kw1">begin</span><span class="br0">(</span><span class="br0">)</span><span class="sy0">;</span><br />
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<span class="br0">}</span><br />
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<br />
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<span class="kw1">void</span> <span class="kw3">loop</span><span class="br0">(</span><span class="br0">)</span><br />
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<span class="br0">{</span><br />
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<span class="co1">// if an incoming client connects, there will be bytes available to read:</span><br />
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EthernetClient client <span class="sy0">=</span> server.<span class="kw1">available</span><span class="br0">(</span><span class="br0">)</span><span class="sy0">;</span><br />
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<span class="kw1">if</span> <span class="br0">(</span>client <span class="sy0">==</span> <span class="kw1">true</span><span class="br0">)</span> <span class="br0">{</span><br />
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<span class="co1">// read bytes from the incoming client and write them back</span><br />
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<span class="co1">// to any clients connected to the server:</span><br />
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server.<span class="kw1">write</span><span class="br0">(</span>client.<span class="kw1">read</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy0">;</span><br />
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<span class="br0">}</span><br />
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<span class="br0">}</span></div></div>
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<div class='sourceblocklink'><a href='#' type='text/plain'>[Get Code]</a></div>
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</div>
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<a class='wikilink' href='index.html'>Reference Home</a>
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</p>
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<p class='vspace'></p><p><em>Corrections, suggestions, and new documentation should be posted to the <a class='urllink' href='http://arduino.cc/forum/index.php/board,23.0.html' rel='nofollow'>Forum</a>.</em>
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</p>
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<p class='vspace'></p><p>The text of the Arduino reference is licensed under a
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<a class='urllink' href='http://creativecommons.org/licenses/by-sa/3.0/' rel='nofollow'>Creative Commons Attribution-ShareAlike 3.0 License</a>. Code samples in the reference are released into the public domain.
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©Arduino |
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<a href='#'>Edit Page</a> | <a href='#'>Page History</a> | <a href='#' target='_blank'>Printable View</a> | <a href='http://arduino.cc/en/Site/AllRecentChanges'>All Recent Site Changes</a>
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