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<div id="projectname">lwIP
&#160;<span id="projectnumber">2.1.2</span>
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<div id="projectbrief">Lightweight IP stack</div>
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<a href="#groups">Modules</a> &#124;
<a href="#func-members">Functions</a> </div>
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<div class="title">SNTP<div class="ingroups"><a class="el" href="group__apps.html">Applications</a></div></div> </div>
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Modules</h2></td></tr>
<tr class="memitem:group__sntp__opts"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sntp__opts.html">Options</a></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ga9b300c6616de60524c85ea40bf70e2ba"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sntp.html#ga9b300c6616de60524c85ea40bf70e2ba">sntp_init</a> (void)</td></tr>
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<tr class="memitem:ga8119fc2d1ff7ff6eba511cc9c7167488"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sntp.html#ga8119fc2d1ff7ff6eba511cc9c7167488">sntp_stop</a> (void)</td></tr>
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<tr class="memitem:ga3fe5254e5a056fca80802d9f26b9c3c5"><td class="memItemLeft" align="right" valign="top">u8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sntp.html#ga3fe5254e5a056fca80802d9f26b9c3c5">sntp_enabled</a> (void)</td></tr>
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<tr class="memitem:gaae94fb2adadbf9667e9597f8a45bf120"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sntp.html#gaae94fb2adadbf9667e9597f8a45bf120">sntp_setoperatingmode</a> (u8_t operating_mode)</td></tr>
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<tr class="memitem:gae66404a551d5cef420cf844a71356fae"><td class="memItemLeft" align="right" valign="top">u8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sntp.html#gae66404a551d5cef420cf844a71356fae">sntp_getoperatingmode</a> (void)</td></tr>
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<tr class="memitem:gac8097829a81cb6f37d9acf8efb2cc82e"><td class="memItemLeft" align="right" valign="top">u8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sntp.html#gac8097829a81cb6f37d9acf8efb2cc82e">sntp_getreachability</a> (u8_t idx)</td></tr>
<tr class="separator:gac8097829a81cb6f37d9acf8efb2cc82e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga4fa038dcea66349fafdbe1cc3e52ff3a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sntp.html#ga4fa038dcea66349fafdbe1cc3e52ff3a">sntp_setserver</a> (u8_t idx, const <a class="el" href="group__ipaddr.html#ga16ef96d6cde029029bbf47fee35fd67a">ip_addr_t</a> *server)</td></tr>
<tr class="separator:ga4fa038dcea66349fafdbe1cc3e52ff3a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga2a28523cb9f2b5b025a4818bc2c1afc1"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="group__ipaddr.html#ga16ef96d6cde029029bbf47fee35fd67a">ip_addr_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sntp.html#ga2a28523cb9f2b5b025a4818bc2c1afc1">sntp_getserver</a> (u8_t idx)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>This is simple "SNTP" client for the lwIP raw API. It is a minimal implementation of SNTPv4 as specified in RFC 4330.</p>
<p>For a list of some public NTP servers, see this link: <a href="http://support.ntp.org/bin/view/Servers/NTPPoolServers">http://support.ntp.org/bin/view/Servers/NTPPoolServers</a></p>
<h2 class="groupheader">Function Documentation</h2>
<a id="ga3fe5254e5a056fca80802d9f26b9c3c5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga3fe5254e5a056fca80802d9f26b9c3c5">&#9670;&nbsp;</a></span>sntp_enabled()</h2>
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<td class="memname">u8_t sntp_enabled </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Get enabled state. </p>
</div>
</div>
<a id="gae66404a551d5cef420cf844a71356fae"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gae66404a551d5cef420cf844a71356fae">&#9670;&nbsp;</a></span>sntp_getoperatingmode()</h2>
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<td class="memname">u8_t sntp_getoperatingmode </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Gets the operating mode. </p>
</div>
</div>
<a id="gac8097829a81cb6f37d9acf8efb2cc82e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gac8097829a81cb6f37d9acf8efb2cc82e">&#9670;&nbsp;</a></span>sntp_getreachability()</h2>
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<td class="memname">u8_t sntp_getreachability </td>
<td>(</td>
<td class="paramtype">u8_t&#160;</td>
<td class="paramname"><em>idx</em></td><td>)</td>
<td></td>
</tr>
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</div><div class="memdoc">
<p>Gets the server reachability shift register as described in RFC 5905.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">idx</td><td>the index of the NTP server </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="ga2a28523cb9f2b5b025a4818bc2c1afc1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga2a28523cb9f2b5b025a4818bc2c1afc1">&#9670;&nbsp;</a></span>sntp_getserver()</h2>
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<td class="memname">const <a class="el" href="group__ipaddr.html#ga16ef96d6cde029029bbf47fee35fd67a">ip_addr_t</a>* sntp_getserver </td>
<td>(</td>
<td class="paramtype">u8_t&#160;</td>
<td class="paramname"><em>idx</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Obtain one of the currently configured by IP address (or DHCP) NTP servers</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">idx</td><td>the index of the NTP server </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>IP address of the indexed NTP server or "ip_addr_any" if the NTP server has not been configured by address (or at all). </dd></dl>
</div>
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<a id="ga9b300c6616de60524c85ea40bf70e2ba"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga9b300c6616de60524c85ea40bf70e2ba">&#9670;&nbsp;</a></span>sntp_init()</h2>
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<td class="memname">void sntp_init </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Initialize this module. Send out request instantly or after <a class="el" href="group__sntp__opts.html#ga22017d43da7d4bf8d42e786b4ced4dfa">SNTP_STARTUP_DELAY(_FUNC)</a>. </p>
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<a id="gaae94fb2adadbf9667e9597f8a45bf120"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaae94fb2adadbf9667e9597f8a45bf120">&#9670;&nbsp;</a></span>sntp_setoperatingmode()</h2>
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<td class="memname">void sntp_setoperatingmode </td>
<td>(</td>
<td class="paramtype">u8_t&#160;</td>
<td class="paramname"><em>operating_mode</em></td><td>)</td>
<td></td>
</tr>
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<p>Sets the operating mode. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">operating_mode</td><td>one of the available operating modes </td></tr>
</table>
</dd>
</dl>
</div>
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<a id="ga4fa038dcea66349fafdbe1cc3e52ff3a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga4fa038dcea66349fafdbe1cc3e52ff3a">&#9670;&nbsp;</a></span>sntp_setserver()</h2>
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<td class="memname">void sntp_setserver </td>
<td>(</td>
<td class="paramtype">u8_t&#160;</td>
<td class="paramname"><em>idx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__ipaddr.html#ga16ef96d6cde029029bbf47fee35fd67a">ip_addr_t</a> *&#160;</td>
<td class="paramname"><em>server</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Initialize one of the NTP servers by IP address</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">idx</td><td>the index of the NTP server to set must be &lt; SNTP_MAX_SERVERS </td></tr>
<tr><td class="paramname">server</td><td>IP address of the NTP server to set </td></tr>
</table>
</dd>
</dl>
</div>
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<a id="ga8119fc2d1ff7ff6eba511cc9c7167488"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga8119fc2d1ff7ff6eba511cc9c7167488">&#9670;&nbsp;</a></span>sntp_stop()</h2>
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<td class="memname">void sntp_stop </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
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<p>Stop this module. </p>
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