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<div id="projectname">LCD Library&#160;<span id="projectnumber">1.3.0</span></div>
<div id="projectbrief">LCD Library - LCD control class hierarchy library. Drop in replacement for the LiquidCrystal Library.</div>
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<div class="title">FastIO.h</div> </div>
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<a href="_fast_i_o_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00002"></a>00002 <span class="comment">// Created by Florian Fida on 20/01/12</span>
<a name="l00003"></a>00003 <span class="comment">// Copyright 2012 - Under creative commons license 3.0:</span>
<a name="l00004"></a>00004 <span class="comment">// Attribution-ShareAlike CC BY-SA</span>
<a name="l00005"></a>00005 <span class="comment">// http://creativecommons.org/licenses/by-sa/3.0/</span>
<a name="l00006"></a>00006 <span class="comment">//</span>
<a name="l00007"></a>00007 <span class="comment">// This software is furnished &quot;as is&quot;, without technical support, and with no</span>
<a name="l00008"></a>00008 <span class="comment">// warranty, express or implied, as to its usefulness for any purpose.</span>
<a name="l00009"></a>00009 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00010"></a>00010 <span class="comment">// fio_shiftOut1 functions are based on Shif1 protocol developed by Roman Black </span>
<a name="l00011"></a>00011 <span class="comment">// (http://www.romanblack.com/shift1.htm)</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Thread Safe: No</span>
<a name="l00014"></a>00014 <span class="comment">// Extendable: Yes</span>
<a name="l00015"></a>00015 <span class="comment">//</span>
<a name="l00016"></a>00016 <span class="comment">// @file FastIO.h</span>
<a name="l00017"></a>00017 <span class="comment">// This file implements basic fast IO routines.</span>
<a name="l00018"></a>00018 <span class="comment">// </span>
<a name="l00019"></a>00019 <span class="comment">// @brief </span>
<a name="l00020"></a>00020 <span class="comment">//</span>
<a name="l00021"></a>00021 <span class="comment">// @version API 1.0.0</span>
<a name="l00022"></a>00022 <span class="comment">//</span>
<a name="l00023"></a>00023 <span class="comment">// @author Florian Fida -</span>
<a name="l00024"></a>00024 <span class="comment">// 2012-03-16 bperrybap mods for chipkit32 (pic32) Arduino</span>
<a name="l00025"></a>00025 <span class="comment">// support chipkit:</span>
<a name="l00026"></a>00026 <span class="comment">// (https://github.com/chipKIT32/chipKIT32-MAX/blob/master/hardware/pic32/</span>
<a name="l00027"></a>00027 <span class="comment">// cores/pic32/wiring_digital.c)</span>
<a name="l00028"></a>00028 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00029"></a>00029 <span class="preprocessor">#ifndef _FAST_IO_H_</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define _FAST_IO_H_</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032 <span class="preprocessor">#if (ARDUINO &lt; 100)</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#include &lt;WProgram.h&gt;</span>
<a name="l00034"></a>00034 <span class="preprocessor">#else</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#include &lt;Arduino.h&gt;</span>
<a name="l00036"></a>00036 <span class="preprocessor">#endif</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span>
<a name="l00038"></a>00038 <span class="preprocessor">#include &lt;pins_arduino.h&gt;</span> <span class="comment">// pleasing sanguino core</span>
<a name="l00039"></a>00039 <span class="preprocessor">#include &lt;inttypes.h&gt;</span>
<a name="l00040"></a>00040
<a name="l00041"></a>00041
<a name="l00042"></a><a class="code" href="_fast_i_o_8h.html#a688a4adbb87520a2b68681bd6bfb199e">00042</a> <span class="preprocessor">#define SKIP 0x23</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span>
<a name="l00044"></a>00044 <span class="preprocessor">#if defined (__AVR__)</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="preprocessor">#include &lt;util/atomic.h&gt;</span> <span class="comment">// for critical section management</span>
<a name="l00046"></a>00046 <span class="keyword">typedef</span> uint8_t <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a>;
<a name="l00047"></a>00047 <span class="keyword">typedef</span> <span class="keyword">volatile</span> uint8_t *<a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a>;
<a name="l00048"></a>00048
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="preprocessor">#elif defined(__PIC32MX__)</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="keyword">typedef</span> uint32_t <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a>;
<a name="l00052"></a>00052 <span class="keyword">typedef</span> <span class="keyword">volatile</span> uint32_t *<a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a>;
<a name="l00053"></a>00053
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="preprocessor">#else</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span><span class="comment">// fallback to Arduino standard digital i/o routines</span>
<a name="l00057"></a><a class="code" href="_fast_i_o_8h.html#a32f90d0ad5c1295c97cc1e79936aadd6">00057</a> <span class="preprocessor">#define FIO_FALLBACK</span>
<a name="l00058"></a><a class="code" href="_fast_i_o_8h.html#a04971fe5fabe4129736708c494e08e6d">00058</a> <span class="preprocessor"></span><span class="preprocessor">#define ATOMIC_BLOCK(dummy) if(true)</span>
<a name="l00059"></a><a class="code" href="_fast_i_o_8h.html#a362c18b15a09703e42e1c246c47420ef">00059</a> <span class="preprocessor"></span><span class="preprocessor">#define ATOMIC_RESTORESTATE</span>
<a name="l00060"></a><a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">00060</a> <span class="preprocessor"></span><span class="keyword">typedef</span> uint8_t <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a>;
<a name="l00061"></a><a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">00061</a> <span class="keyword">typedef</span> uint8_t <a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a>;
<a name="l00062"></a>00062 <span class="preprocessor">#endif</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span>
<a name="l00064"></a>00064
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="preprocessor">#if !defined(FIO_FALLBACK) &amp;&amp; !defined(ATOMIC_BLOCK)</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span><span class="comment">/*</span>
<a name="l00068"></a>00068 <span class="comment"> * Define an ATOMIC_BLOCK that implements ATOMIC_FORCEON type</span>
<a name="l00069"></a>00069 <span class="comment"> * Using the portable Arduino interrupts() and noInterrupts()</span>
<a name="l00070"></a>00070 <span class="comment"> */</span>
<a name="l00071"></a>00071 <span class="preprocessor">#define ATOMIC_RESTORESTATE ATOMIC_FORCEON // sorry, no support for save/restore yet.</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span><span class="preprocessor">#define ATOMIC_FORCEON uint8_t sreg_save \</span>
<a name="l00073"></a>00073 <span class="preprocessor"> __attribute__((__cleanup__(__iSeiParam))) = 0</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span>
<a name="l00075"></a>00075 <span class="keyword">static</span> __inline__ uint8_t __iCliRetVal(<span class="keywordtype">void</span>)
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 noInterrupts();
<a name="l00078"></a>00078 <span class="keywordflow">return</span>(1);
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080 <span class="keyword">static</span> __inline__ <span class="keywordtype">void</span> __iSeiParam(<span class="keyword">const</span> uint8_t *__s)
<a name="l00081"></a>00081 {
<a name="l00082"></a>00082 interrupts();
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084 <span class="preprocessor">#define ATOMIC_BLOCK(type) for(type, __Todo = __iCliRetVal(); __Todo; __Todo = 0)</span>
<a name="l00085"></a>00085 <span class="preprocessor"></span>
<a name="l00086"></a>00086 <span class="preprocessor">#endif // end of block to create compatible ATOMIC_BLOCK()</span>
<a name="l00087"></a>00087 <span class="preprocessor"></span>
<a name="l00088"></a>00088
<a name="l00089"></a>00089
<a name="l00097"></a>00097 <a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> <a class="code" href="_fast_i_o_8cpp.html#a04210cc785c3b4a11c86f794949c327f">fio_pinToOutputRegister</a>(uint8_t pin, uint8_t initial_state = LOW);
<a name="l00098"></a>00098
<a name="l00106"></a>00106 <a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> <a class="code" href="_fast_i_o_8cpp.html#afb934fc0ded94cbb5ed8ed14e2a123ed">fio_pinToInputRegister</a>(uint8_t pin);
<a name="l00107"></a>00107
<a name="l00115"></a>00115 <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a> <a class="code" href="_fast_i_o_8cpp.html#a07a19dfbdca1afaca5d666bdaa3be7d5">fio_pinToBit</a>(uint8_t pin);
<a name="l00116"></a>00116
<a name="l00117"></a>00117
<a name="l00127"></a>00127 <span class="comment">// __attribute__ ((always_inline)) /* let the optimizer decide that for now */</span>
<a name="l00128"></a>00128 <span class="keywordtype">void</span> <a class="code" href="_fast_i_o_8cpp.html#ae91bbe682b02a5842c291055c0e998b5">fio_digitalWrite</a> ( <a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> pinRegister, <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a> pinBit, uint8_t value );
<a name="l00129"></a>00129
<a name="l00136"></a>00136 <span class="preprocessor">#ifndef FIO_FALLBACK</span>
<a name="l00137"></a>00137 <span class="preprocessor"></span><span class="preprocessor">#define fio_digitalWrite_LOW(reg,bit) *reg &amp;= ~bit</span>
<a name="l00138"></a>00138 <span class="preprocessor"></span><span class="preprocessor">#define fio_digitalWrite_HIGH(reg,bit) *reg |= bit</span>
<a name="l00139"></a>00139 <span class="preprocessor"></span><span class="preprocessor">#define fio_digitalWrite_SWITCH(reg,bit) *reg ^= bit</span>
<a name="l00140"></a>00140 <span class="preprocessor"></span><span class="preprocessor">#define fio_digitalWrite_SWITCHTO(reg,bit,val) fio_digitalWrite_SWITCH(reg,bit)</span>
<a name="l00141"></a>00141 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00142"></a>00142 <span class="preprocessor"></span><span class="comment">// reg -&gt; dummy NULL, bit -&gt; pin</span>
<a name="l00143"></a><a class="code" href="_fast_i_o_8h.html#a89e1c62276052100c62b6c82a2e95622">00143</a> <span class="preprocessor">#define fio_digitalWrite_HIGH(reg,bit) digitalWrite(bit,HIGH)</span>
<a name="l00144"></a><a class="code" href="_fast_i_o_8h.html#ac8f00a1bccb98109531b88fbb6e91478">00144</a> <span class="preprocessor"></span><span class="preprocessor">#define fio_digitalWrite_LOW(reg,bit) digitalWrite(bit,LOW)</span>
<a name="l00145"></a><a class="code" href="_fast_i_o_8h.html#a6d1dffed7f0c8f28f6c88146315f7832">00145</a> <span class="preprocessor"></span><span class="preprocessor">#define fio_digitalWrite_SWITCH(reg,bit) digitalWrite(bit, !digitalRead(bit))</span>
<a name="l00146"></a><a class="code" href="_fast_i_o_8h.html#accae9687fdfc5f3492fb6344d62eb190">00146</a> <span class="preprocessor"></span><span class="preprocessor">#define fio_digitalWrite_SWITCHTO(reg,bit,val) digitalWrite(bit,val);</span>
<a name="l00147"></a>00147 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00148"></a>00148 <span class="preprocessor"></span>
<a name="l00158"></a>00158 <span class="keywordtype">int</span> <a class="code" href="_fast_i_o_8cpp.html#a83fc2fdc19ab3f9aade9e1a2f39e81a6">fio_digitalRead</a> ( <a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> pinRegister, <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a> pinBit );
<a name="l00159"></a>00159
<a name="l00171"></a>00171 <span class="keywordtype">void</span> <a class="code" href="_fast_i_o_8cpp.html#a56c72b9f00680662229895ab22aaa743">fio_shiftOut</a>( <a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> dataRegister, <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a> dataBit, <a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> clockRegister,
<a name="l00172"></a>00172 <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a> clockBit, uint8_t value, uint8_t bitOrder );
<a name="l00173"></a>00173
<a name="l00184"></a>00184 <span class="keywordtype">void</span> <a class="code" href="_fast_i_o_8cpp.html#a56c72b9f00680662229895ab22aaa743">fio_shiftOut</a>(<a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> dataRegister, <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a> dataBit, <a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> clockRegister, <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a> clockBit);
<a name="l00185"></a>00185
<a name="l00194"></a>00194 <span class="keywordtype">void</span> <a class="code" href="_fast_i_o_8cpp.html#a5b4d1684030dc620938b7c2fbdf5ced8">fio_shiftOut1</a>(<a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> shift1Register, <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a> shift1Bit, uint8_t value, <span class="keywordtype">boolean</span> noLatch = <span class="keyword">false</span>);
<a name="l00202"></a>00202 <span class="keywordtype">void</span> <a class="code" href="_fast_i_o_8cpp.html#a5b4d1684030dc620938b7c2fbdf5ced8">fio_shiftOut1</a>(uint8_t pin, uint8_t value, <span class="keywordtype">boolean</span> noLatch = <span class="keyword">false</span>);
<a name="l00210"></a>00210 <span class="keywordtype">void</span> <a class="code" href="_fast_i_o_8cpp.html#ae4b2e099f8ade9ee674d1565669e870a">fio_shiftOut1_init</a>(<a class="code" href="_fast_i_o_8h.html#ae44ea3af54ef26db03f1ae2ea62f9c1f">fio_register</a> shift1Register, <a class="code" href="_fast_i_o_8h.html#a0a595a88b29bcfd1540b6fac75787937">fio_bit</a> shift1Bit);
<a name="l00217"></a>00217 <span class="keywordtype">void</span> <a class="code" href="_fast_i_o_8cpp.html#ae4b2e099f8ade9ee674d1565669e870a">fio_shiftOut1_init</a>(uint8_t pin);
<a name="l00218"></a>00218
<a name="l00219"></a>00219 <span class="preprocessor">#endif // FAST_IO_H</span>
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