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Added some libraries that need implementation to achieve 115200 bitrates for sd card logging
2013-04-26 02:15:16 +00:00
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<p>Serial Port class.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;avr/io.h&gt;</code><br/>
<code>#include &lt;avr/pgmspace.h&gt;</code><br/>
<code>#include &lt;Arduino.h&gt;</code><br/>
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<tr><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00001.html">SerialPort&lt; PortNumber, RxBufSize, TxBufSize &gt;</a></td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Class for avr hardware USART ports. <a href="a00001.html#details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00002.html">SerialRingBuffer</a></td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Ring buffer for RX and TX data. <a href="a00002.html#details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00003.html">UsartRegister</a></td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Addresses of USART registers. <a href="a00003.html#details">More...</a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#a0a18cb484aedac7af838a4cf5080406f">ALLOW_LARGE_BUFFERS</a>&#160;&#160;&#160;1</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#a44e23de08452d49d4b2dcb57570222ce">SERIAL_PORT_VERSION</a>&#160;&#160;&#160;20130222</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#a7966cb9ae597cfc98175b3330e336c50">USE_NEW_SERIAL</a>&#160;&#160;&#160;<a class="el" href="a00001.html">SerialPort</a>&lt;0, 63, 63&gt; NewSerial</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#a6d27f04ec011a817c44ef9a0898c0570">USE_NEW_SERIAL1</a>&#160;&#160;&#160;<a class="el" href="a00001.html">SerialPort</a>&lt;1, 63, 63&gt; NewSerial1</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#ae0695a8a8d72f8b8d99505fe349cace9">badRxBufSize</a> (void)</td></tr>
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Variables</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00002.html">SerialRingBuffer</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#a9357d415ed299b0aa00c9333c7d1cf7f">rxRingBuf</a> []</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">static const uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#a2ea2d7ccb17a58a56c0726bf21e12b61">SP_PARITY_ERROR</a> = M_UPE</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">static const uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#a672521fec83294e7cd4e2061bfb5765c">SP_UCSRA_ERROR_MASK</a> = M_FE | M_DOR | M_UPE</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00002.html">SerialRingBuffer</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#ad658e906f050f38e4de63e1ad7664b30">txRingBuf</a> []</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="a00003.html">UsartRegister</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00005.html#a2ca8ac27d295096da3a374bd1ef99492">usart</a> []</td></tr>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Serial Port class. </p>
<p>Definition in file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
</div><hr/><h2>Define Documentation</h2>
<a class="anchor" id="a0a18cb484aedac7af838a4cf5080406f"></a><!-- doxytag: member="SerialPort.h::ALLOW_LARGE_BUFFERS" ref="a0a18cb484aedac7af838a4cf5080406f" args="" -->
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<td class="memname">#define ALLOW_LARGE_BUFFERS&#160;&#160;&#160;1</td>
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<p>Set ALLOW_LARGE_BUFFERS to zero to limit buffer sizes to 254 bytes.</p>
<p>ALLOW_LARGE_BUFFERS controls whether uint16_t or uint8_t will be used for buffer indices. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00036">36</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a492b740c6f5dfa881640261970c21e82"></a><!-- doxytag: member="SerialPort.h::BUFFERED_RX" ref="a492b740c6f5dfa881640261970c21e82" args="" -->
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<td class="memname">#define BUFFERED_RX&#160;&#160;&#160;1</td>
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<p>Set BUFFERED_RX zero to save flash and RAM if no RX buffering is used.</p>
<p>RxBufSize must be zero in all <a class="el" href="a00001.html" title="Class for avr hardware USART ports.">SerialPort</a> constructors if BUFFERED_RX is zero. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00052">52</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="ab9814b492800e7e722e5c4c47c4e7d6a"></a><!-- doxytag: member="SerialPort.h::BUFFERED_TX" ref="ab9814b492800e7e722e5c4c47c4e7d6a" args="" -->
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<td class="memname">#define BUFFERED_TX&#160;&#160;&#160;1</td>
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<p>Set BUFFERED_TX zero to save flash and RAM if no TX buffering is used.</p>
<p>TxBufSize must be zero in all <a class="el" href="a00001.html" title="Class for avr hardware USART ports.">SerialPort</a> constructors if BUFFERED_TX is zero. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00060">60</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="aa347a5f07ca656ebbf07f0df83eb34b3"></a><!-- doxytag: member="SerialPort.h::ENABLE_RX_ERROR_CHECKING" ref="aa347a5f07ca656ebbf07f0df83eb34b3" args="" -->
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<td class="memname">#define ENABLE_RX_ERROR_CHECKING&#160;&#160;&#160;1</td>
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<p>Set ENABLE_RX_ERROR_CHECKING zero to disable RX error checking. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00065">65</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a44e23de08452d49d4b2dcb57570222ce"></a><!-- doxytag: member="SerialPort.h::SERIAL_PORT_VERSION" ref="a44e23de08452d49d4b2dcb57570222ce" args="" -->
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<td class="memname">#define SERIAL_PORT_VERSION&#160;&#160;&#160;20130222</td>
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<p><a class="el" href="a00001.html" title="Class for avr hardware USART ports.">SerialPort</a> version YYYYMMDD </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00028">28</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a7966cb9ae597cfc98175b3330e336c50"></a><!-- doxytag: member="SerialPort.h::USE_NEW_SERIAL" ref="a7966cb9ae597cfc98175b3330e336c50" args="" -->
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<td class="memname">#define USE_NEW_SERIAL&#160;&#160;&#160;<a class="el" href="a00001.html">SerialPort</a>&lt;0, 63, 63&gt; NewSerial</td>
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<p>Define NewSerial with buffering like Arduino 1.0. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00069">69</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a6d27f04ec011a817c44ef9a0898c0570"></a><!-- doxytag: member="SerialPort.h::USE_NEW_SERIAL1" ref="a6d27f04ec011a817c44ef9a0898c0570" args="" -->
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<td class="memname">#define USE_NEW_SERIAL1&#160;&#160;&#160;<a class="el" href="a00001.html">SerialPort</a>&lt;1, 63, 63&gt; NewSerial1</td>
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<p>Define NewSerial1 with buffering like Arduino 1.0. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00071">71</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a6f0dbd3bdf75bd4aaec5d1f9aa02fff3"></a><!-- doxytag: member="SerialPort.h::USE_NEW_SERIAL2" ref="a6f0dbd3bdf75bd4aaec5d1f9aa02fff3" args="" -->
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<td class="memname">#define USE_NEW_SERIAL2&#160;&#160;&#160;<a class="el" href="a00001.html">SerialPort</a>&lt;2, 63, 63&gt; NewSerial2</td>
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<p>Define NewSerial2 with buffering like Arduino 1.0. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00073">73</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a03e12542dc110fbc675676bd7ddb6c8a"></a><!-- doxytag: member="SerialPort.h::USE_NEW_SERIAL3" ref="a03e12542dc110fbc675676bd7ddb6c8a" args="" -->
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<td class="memname">#define USE_NEW_SERIAL3&#160;&#160;&#160;<a class="el" href="a00001.html">SerialPort</a>&lt;3, 63, 63&gt; NewSerial3</td>
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<p>Define NewSerial3 with buffering like Arduino 1.0. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00075">75</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a460c9e53d7d709cf8f90ba98d901dd80"></a><!-- doxytag: member="SerialPort.h::USE_WRITE_OVERRIDES" ref="a460c9e53d7d709cf8f90ba98d901dd80" args="" -->
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<td class="memname">#define USE_WRITE_OVERRIDES&#160;&#160;&#160;1</td>
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<p>Set USE_WRITE_OVERRIDES to zero to use the Arduino Print version of write(const char*) and write(const uint8_t*, size_t).</p>
<p>This will save some flash but is much slower. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00044">44</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="afba54bf68161da2539416c1c79079322"></a><!-- doxytag: member="SerialPort.h::badPortNumber" ref="afba54bf68161da2539416c1c79079322" args="(void)" -->
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<td class="memname">uint8_t badPortNumber </td>
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<p>Cause error message for bad port number. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>Never returns since it is never called. </dd></dl>
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<a class="anchor" id="ae0695a8a8d72f8b8d99505fe349cace9"></a><!-- doxytag: member="SerialPort.h::badRxBufSize" ref="ae0695a8a8d72f8b8d99505fe349cace9" args="(void)" -->
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<td class="memname">uint8_t badRxBufSize </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
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<p>Cause error message for bad port number. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>Never returns since it is never called. </dd></dl>
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<a class="anchor" id="a3e34f6fae0601bde1dc223e1dae0461c"></a><!-- doxytag: member="SerialPort.h::badTxBufSize" ref="a3e34f6fae0601bde1dc223e1dae0461c" args="(void)" -->
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<td class="memname">uint8_t badTxBufSize </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
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<p>Cause error message for bad port number. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>Never returns since it is never called. </dd></dl>
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<hr/><h2>Variable Documentation</h2>
<a class="anchor" id="a122aa87d6d517cf6fef0ac595ade2a3b"></a><!-- doxytag: member="SerialPort.h::rxErrorBits" ref="a122aa87d6d517cf6fef0ac595ade2a3b" args="[]" -->
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<td class="memname">uint8_t <a class="el" href="a00005.html#a122aa87d6d517cf6fef0ac595ade2a3b">rxErrorBits</a>[]</td>
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<p>RX error bits. </p>
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<a class="anchor" id="a9357d415ed299b0aa00c9333c7d1cf7f"></a><!-- doxytag: member="SerialPort.h::rxRingBuf" ref="a9357d415ed299b0aa00c9333c7d1cf7f" args="[]" -->
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<td class="memname"><a class="el" href="a00002.html">SerialRingBuffer</a> <a class="el" href="a00005.html#a9357d415ed299b0aa00c9333c7d1cf7f">rxRingBuf</a>[]</td>
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<p>RX ring buffers. </p>
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<a class="anchor" id="aa52e1ab0a02b31e608e2f789d0f21515"></a><!-- doxytag: member="SerialPort.h::SP_1_STOP_BIT" ref="aa52e1ab0a02b31e608e2f789d0f21515" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#aa52e1ab0a02b31e608e2f789d0f21515">SP_1_STOP_BIT</a> = 0<code> [static]</code></td>
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<p>Use one stop bit. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00161">161</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a0caf477e5dd815acc9c3496d31e78040"></a><!-- doxytag: member="SerialPort.h::SP_2_STOP_BIT" ref="a0caf477e5dd815acc9c3496d31e78040" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a0caf477e5dd815acc9c3496d31e78040">SP_2_STOP_BIT</a> = M_USBS<code> [static]</code></td>
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<p>Use two stop bits. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00163">163</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a7fceca316014ed58d8a6bf003d56af5a"></a><!-- doxytag: member="SerialPort.h::SP_5_BIT_CHAR" ref="a7fceca316014ed58d8a6bf003d56af5a" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a7fceca316014ed58d8a6bf003d56af5a">SP_5_BIT_CHAR</a> = 0<code> [static]</code></td>
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<p>Use 5-bit character size. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00173">173</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a5cb767bae10b9aa5a02be00c5b570967"></a><!-- doxytag: member="SerialPort.h::SP_6_BIT_CHAR" ref="a5cb767bae10b9aa5a02be00c5b570967" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a5cb767bae10b9aa5a02be00c5b570967">SP_6_BIT_CHAR</a> = M_UCSZ0<code> [static]</code></td>
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<p>Use 6-bit character size. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00175">175</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a66e3e7fbd73f8b499b7062e3d9ac4981"></a><!-- doxytag: member="SerialPort.h::SP_7_BIT_CHAR" ref="a66e3e7fbd73f8b499b7062e3d9ac4981" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a66e3e7fbd73f8b499b7062e3d9ac4981">SP_7_BIT_CHAR</a> = M_UCSZ1<code> [static]</code></td>
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<p>Use 7-bit character size. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00177">177</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="aaacdef21e05f2054cef451d4f840317b"></a><!-- doxytag: member="SerialPort.h::SP_8_BIT_CHAR" ref="aaacdef21e05f2054cef451d4f840317b" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#aaacdef21e05f2054cef451d4f840317b">SP_8_BIT_CHAR</a> = M_UCSZ0 | M_UCSZ1<code> [static]</code></td>
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<p>Use 8-bit character size. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00179">179</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="ac2c5b2c5c91965edc51ab6e12b1cf604"></a><!-- doxytag: member="SerialPort.h::SP_EVEN_PARITY" ref="ac2c5b2c5c91965edc51ab6e12b1cf604" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#ac2c5b2c5c91965edc51ab6e12b1cf604">SP_EVEN_PARITY</a> = M_UPM1<code> [static]</code></td>
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<p>Use even parity. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00168">168</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a2a7a0989d2d7a5f27a0eef14b4052f5e"></a><!-- doxytag: member="SerialPort.h::SP_FRAMING_ERROR" ref="a2a7a0989d2d7a5f27a0eef14b4052f5e" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a2a7a0989d2d7a5f27a0eef14b4052f5e">SP_FRAMING_ERROR</a> = M_FE<code> [static]</code></td>
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<p>USART framing error bit. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00184">184</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a1408abd4630ac1b2a5432f07636fb2ba"></a><!-- doxytag: member="SerialPort.h::SP_NO_PARITY" ref="a1408abd4630ac1b2a5432f07636fb2ba" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a1408abd4630ac1b2a5432f07636fb2ba">SP_NO_PARITY</a> = 0<code> [static]</code></td>
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<p>No parity bit. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00166">166</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a9625f0899cb845451b46f3aff94ffe01"></a><!-- doxytag: member="SerialPort.h::SP_ODD_PARITY" ref="a9625f0899cb845451b46f3aff94ffe01" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a9625f0899cb845451b46f3aff94ffe01">SP_ODD_PARITY</a> = M_UPM0 | M_UPM1<code> [static]</code></td>
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<p>Use odd parity. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00170">170</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="ac81a11e48b532ac5ab752e866e5e51e6"></a><!-- doxytag: member="SerialPort.h::SP_OPT_MASK" ref="ac81a11e48b532ac5ab752e866e5e51e6" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#ac81a11e48b532ac5ab752e866e5e51e6">SP_OPT_MASK</a> = M_USBS | M_UPM0 | M_UPM1 |M_UCSZ0 | M_UCSZ1<code> [static]</code></td>
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<p>Mask for all options bits. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00181">181</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a2ea2d7ccb17a58a56c0726bf21e12b61"></a><!-- doxytag: member="SerialPort.h::SP_PARITY_ERROR" ref="a2ea2d7ccb17a58a56c0726bf21e12b61" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a2ea2d7ccb17a58a56c0726bf21e12b61">SP_PARITY_ERROR</a> = M_UPE<code> [static]</code></td>
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<p>USART parity error bit. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00188">188</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a2ad06f836f28d76e35006eabe2a70f53"></a><!-- doxytag: member="SerialPort.h::SP_RX_BUF_OVERRUN" ref="a2ad06f836f28d76e35006eabe2a70f53" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a2ad06f836f28d76e35006eabe2a70f53">SP_RX_BUF_OVERRUN</a> = 1<code> [static]</code></td>
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<p>RX ring buffer full overrun. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00192">192</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="aba276deb6f876a8cf7e0f895cfbb37c8"></a><!-- doxytag: member="SerialPort.h::SP_RX_DATA_OVERRUN" ref="aba276deb6f876a8cf7e0f895cfbb37c8" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#aba276deb6f876a8cf7e0f895cfbb37c8">SP_RX_DATA_OVERRUN</a> = M_DOR<code> [static]</code></td>
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<p>USART RX data overrun error bit. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00186">186</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="a672521fec83294e7cd4e2061bfb5765c"></a><!-- doxytag: member="SerialPort.h::SP_UCSRA_ERROR_MASK" ref="a672521fec83294e7cd4e2061bfb5765c" args="" -->
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<td class="memname">const uint8_t <a class="el" href="a00005.html#a672521fec83294e7cd4e2061bfb5765c">SP_UCSRA_ERROR_MASK</a> = M_FE | M_DOR | M_UPE<code> [static]</code></td>
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<p>Mask for all error bits in UCSRA. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00190">190</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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<a class="anchor" id="ad658e906f050f38e4de63e1ad7664b30"></a><!-- doxytag: member="SerialPort.h::txRingBuf" ref="ad658e906f050f38e4de63e1ad7664b30" args="[]" -->
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<td class="memname"><a class="el" href="a00002.html">SerialRingBuffer</a> <a class="el" href="a00005.html#ad658e906f050f38e4de63e1ad7664b30">txRingBuf</a>[]</td>
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<p>TX ring buffers. </p>
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<a class="anchor" id="a2ca8ac27d295096da3a374bd1ef99492"></a><!-- doxytag: member="SerialPort.h::usart" ref="a2ca8ac27d295096da3a374bd1ef99492" args="[]" -->
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<td class="memname">const <a class="el" href="a00003.html">UsartRegister</a> <a class="el" href="a00005.html#a2ca8ac27d295096da3a374bd1ef99492">usart</a>[]<code> [static]</code></td>
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<b>Initial value:</b><div class="fragment"><pre class="fragment"> {
{0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0}
}
</pre></div><p>Pointers to USART registers. This static const array allows the compiler to generate very efficient code if the array index is a constant. </p>
<p>Definition at line <a class="el" href="a00005_source.html#l00214">214</a> of file <a class="el" href="a00005_source.html">SerialPort.h</a>.</p>
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