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| 8 | <h1>spi.h</h1><a href="spi_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*! \file spi.h \brief SPI interface driver. */</span> |
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| 9 | 00002 <span class="comment">//*****************************************************************************</span> |
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| 10 | 00003 <span class="comment">//</span> |
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| 11 | 00004 <span class="comment">// File Name : 'spi.h'</span> |
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| 12 | 00005 <span class="comment">// Title : SPI interface driver</span> |
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| 13 | 00006 <span class="comment">// Author : Pascal Stang - Copyright (C) 2000-2002</span> |
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| 14 | 00007 <span class="comment">// Created : 11/22/2000</span> |
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| 15 | 00008 <span class="comment">// Revised : 06/06/2002</span> |
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| 16 | 00009 <span class="comment">// Version : 0.6</span> |
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| 17 | 00010 <span class="comment">// Target MCU : Atmel AVR series</span> |
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| 18 | 00011 <span class="comment">// Editor Tabs : 4</span> |
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| 19 | 00012 <span class="comment">//</span> |
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| 20 | 00013 <span class="comment">// NOTE: This code is currently below version 1.0, and therefore is considered</span> |
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| 21 | 00014 <span class="comment">// to be lacking in some functionality or documentation, or may not be fully</span> |
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| 22 | 00015 <span class="comment">// tested. Nonetheless, you can expect most functions to work.</span> |
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| 23 | 00016 <span class="comment">//</span><span class="comment"></span> |
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| 24 | 00017 <span class="comment">/// \ingroup driver_avr</span> |
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| 25 | 00018 <span class="comment">/// \defgroup spi SPI (Serial Peripheral Interface) Function Library (spi.c)</span> |
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| 26 | 00019 <span class="comment">/// \code #include "spi.h" \endcode</span> |
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| 27 | 00020 <span class="comment">/// \par Overview</span> |
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| 28 | 00021 <span class="comment">/// Provides basic byte and word transmitting and receiving via the AVR</span> |
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| 29 | 00022 <span class="comment">/// SPI interface. Due to the nature of SPI, every SPI communication operation</span> |
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| 30 | 00023 <span class="comment">/// is both a transmit and simultaneous receive.</span> |
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| 31 | 00024 <span class="comment">///</span> |
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| 32 | 00025 <span class="comment">/// \note Currently, only MASTER mode is supported.</span> |
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| 33 | 00026 <span class="comment"></span><span class="comment">//</span> |
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| 34 | 00027 <span class="comment">// This code is distributed under the GNU Public License</span> |
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| 35 | 00028 <span class="comment">// which can be found at http://www.gnu.org/licenses/gpl.txt</span> |
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| 36 | 00029 <span class="comment">//</span> |
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| 37 | 00030 <span class="comment">//*****************************************************************************</span> |
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| 38 | 00031 |
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| 39 | 00032 <span class="preprocessor">#ifndef SPI_H</span> |
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| 40 | 00033 <span class="preprocessor"></span><span class="preprocessor">#define SPI_H</span> |
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| 41 | 00034 <span class="preprocessor"></span> |
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| 42 | 00035 <span class="preprocessor">#include "<a class="code" href="global_8h.html">global.h</a>"</span> |
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| 43 | 00036 |
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| 44 | 00037 <span class="comment">// function prototypes</span> |
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| 45 | 00038 |
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| 46 | 00039 <span class="comment">// SPI interface initializer</span> |
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| 47 | 00040 <span class="keywordtype">void</span> spiInit(<span class="keywordtype">void</span>); |
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| 48 | 00041 |
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| 49 | 00042 <span class="comment">// spiSendByte(u08 data) waits until the SPI interface is ready</span> |
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| 50 | 00043 <span class="comment">// and then sends a single byte over the SPI port. This command</span> |
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| 51 | 00044 <span class="comment">// does not receive anything.</span> |
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| 52 | 00045 <span class="keywordtype">void</span> spiSendByte(u08 data); |
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| 53 | 00046 |
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| 54 | 00047 <span class="comment">// spiTransferByte(u08 data) waits until the SPI interface is ready</span> |
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| 55 | 00048 <span class="comment">// and then sends a single byte over the SPI port. The function also</span> |
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| 56 | 00049 <span class="comment">// returns the byte that was received during transmission.</span> |
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| 57 | 00050 u08 spiTransferByte(u08 data); |
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| 58 | 00051 |
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| 59 | 00052 <span class="comment">// spiTransferWord(u08 data) works just like spiTransferByte but</span> |
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| 60 | 00053 <span class="comment">// operates on a whole word (16-bits of data).</span> |
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| 61 | 00054 u16 spiTransferWord(u16 data); |
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| 62 | 00055 |
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| 63 | 00056 <span class="preprocessor">#endif</span> |
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| 64 | </pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Oct 29 03:41:07 2006 for Procyon AVRlib by |
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| 65 | <a href="http://www.doxygen.org/index.html"> |
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| 66 | <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address> |
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| 67 | </body> |
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