sebastian
/
CoffeePi


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210
							<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.10"/>
<title>CoffeePi: spi.cpp File Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
  $(document).ready(function() { init_search(); });
</script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td id="projectalign" style="padding-left: 0.5em;">
   <div id="projectname">CoffeePi
   </div>
   <div id="projectbrief">Coffee machine control for Raspberry Pi</div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.10 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li><a href="annotated.html"><span>Data&#160;Structures</span></a></li>
      <li class="current"><a href="files.html"><span>Files</span></a></li>
      <li>
        <div id="MSearchBox" class="MSearchBoxInactive">
        <span class="left">
          <img id="MSearchSelect" src="search/mag_sel.png"
               onmouseover="return searchBox.OnSearchSelectShow()"
               onmouseout="return searchBox.OnSearchSelectHide()"
               alt=""/>
          <input type="text" id="MSearchField" value="Search" accesskey="S"
               onfocus="searchBox.OnSearchFieldFocus(true)" 
               onblur="searchBox.OnSearchFieldFocus(false)" 
               onkeyup="searchBox.OnSearchFieldChange(event)"/>
          </span><span class="right">
            <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
          </span>
        </div>
      </li>
    </ul>
  </div>
  <div id="navrow2" class="tabs2">
    <ul class="tablist">
      <li><a href="files.html"><span>File&#160;List</span></a></li>
      <li><a href="globals.html"><span>Globals</span></a></li>
    </ul>
  </div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

</div><!-- top -->
<div class="header">
  <div class="summary">
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">spi.cpp File Reference</div>  </div>
</div><!--header-->
<div class="contents">
<div class="textblock"><code>#include &lt;wiringPi.h&gt;</code><br />
<code>#include &lt;wiringPiSPI.h&gt;</code><br />
<code>#include &lt;stdio.h&gt;</code><br />
<code>#include &lt;string.h&gt;</code><br />
<code>#include &lt;errno.h&gt;</code><br />
<code>#include &quot;<a class="el" href="global_8h_source.html">global.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="logger_8h_source.html">logger.h</a>&quot;</code><br />
<code>#include &lt;inttypes.h&gt;</code><br />
<code>#include &lt;unistd.h&gt;</code><br />
<code>#include &quot;<a class="el" href="spi_8h_source.html">spi.h</a>&quot;</code><br />
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a7402e4a56146a9e3df480b206a3f7e7e"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="spi_8cpp.html#a7402e4a56146a9e3df480b206a3f7e7e">spi_readwrite</a> (uint8_t data)</td></tr>
<tr class="memdesc:a7402e4a56146a9e3df480b206a3f7e7e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Writes the data on the SPI bus and returns the reply.  <a href="#a7402e4a56146a9e3df480b206a3f7e7e">More...</a><br /></td></tr>
<tr class="separator:a7402e4a56146a9e3df480b206a3f7e7e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae909944aa85ae98323073c628be541aa"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="spi_8cpp.html#ae909944aa85ae98323073c628be541aa">spi_init</a> (void)</td></tr>
<tr class="memdesc:ae909944aa85ae98323073c628be541aa"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initializes the SPI bus.  <a href="#ae909944aa85ae98323073c628be541aa">More...</a><br /></td></tr>
<tr class="separator:ae909944aa85ae98323073c628be541aa"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac7600504b8cf1ac90ce331a5ed23c3db"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="spi_8cpp.html#ac7600504b8cf1ac90ce331a5ed23c3db">shift_init</a> (void)</td></tr>
<tr class="memdesc:ac7600504b8cf1ac90ce331a5ed23c3db"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initializes the shift register.  <a href="#ac7600504b8cf1ac90ce331a5ed23c3db">More...</a><br /></td></tr>
<tr class="separator:ac7600504b8cf1ac90ce331a5ed23c3db"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aec7140cda479ce5f88361739e86ccecd"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="spi_8cpp.html#aec7140cda479ce5f88361739e86ccecd">shift_data</a> (uint8_t data)</td></tr>
<tr class="memdesc:aec7140cda479ce5f88361739e86ccecd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sends a byte to the shift register.  <a href="#aec7140cda479ce5f88361739e86ccecd">More...</a><br /></td></tr>
<tr class="separator:aec7140cda479ce5f88361739e86ccecd"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="aec7140cda479ce5f88361739e86ccecd"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void shift_data </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>data</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Sends a byte to the shift register. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">data</td><td>Data byte </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="ac7600504b8cf1ac90ce331a5ed23c3db"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void shift_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>Initializes the shift register. </p>

</div>
</div>
<a class="anchor" id="ae909944aa85ae98323073c628be541aa"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void spi_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>Initializes the SPI bus. </p>

</div>
</div>
<a class="anchor" id="a7402e4a56146a9e3df480b206a3f7e7e"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">uint8_t spi_readwrite </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>data</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Writes the data on the SPI bus and returns the reply. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">data</td><td>byte to write to the bus </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>byte read from the bus </dd></dl>

</div>
</div>
</div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.10
</small></address>
</body>
</html>