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8 <h1>spieeprom.h</h1><a href="spieeprom_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*! \file spieeprom.h \brief Interface for standard SPI EEPROM memories. */</span>
9 00002 <span class="comment">//*****************************************************************************</span>
10 00003 <span class="comment">//</span>
11 00004 <span class="comment">// File Name : 'spieeprom.h'</span>
12 00005 <span class="comment">// Title : Interface for standard SPI EEPROM memories</span>
13 00006 <span class="comment">// Author : Pascal Stang - Copyright (C) 2004</span>
14 00007 <span class="comment">// Created : 2004.10.07</span>
15 00008 <span class="comment">// Revised : 2004.10.07</span>
16 00009 <span class="comment">// Version : 0.1</span>
17 00010 <span class="comment">// Target MCU : Atmel AVR series</span>
18 00011 <span class="comment">// Editor Tabs : 4</span>
19 00012 <span class="comment">//</span><span class="comment"></span>
20 00013 <span class="comment">/// \ingroup driver_hw</span>
21 00014 <span class="comment">/// \defgroup spieeprom Interface for standard SPI EEPROM memories (spieeprom.c)</span>
22 00015 <span class="comment">/// \code #include "spieeprom.h" \endcode</span>
23 00016 <span class="comment">/// \par Overview</span>
24 00017 <span class="comment">/// This library provides functions for reading and writing standard</span>
25 00018 <span class="comment">/// 25Cxxx/25LCxxx SPI EEPROM memories. Memory sizes up to 64Kbytes are</span>
26 00019 <span class="comment">/// supported. Future revisions may include page-write support.</span>
27 00020 <span class="comment">///</span>
28 00021 <span class="comment">/// \Note Library not fully tested!</span>
29 00022 <span class="comment"></span><span class="comment">//</span>
30 00023 <span class="comment">// This code is distributed under the GNU Public License</span>
31 00024 <span class="comment">// which can be found at http://www.gnu.org/licenses/gpl.txt</span>
32 00025 <span class="comment">//</span>
33 00026 <span class="comment">//*****************************************************************************</span>
34 00027
35 00028 <span class="preprocessor">#ifndef SPIEEPROM_H</span>
36 00029 <span class="preprocessor"></span><span class="preprocessor">#define SPIEEPROM_H</span>
37 00030 <span class="preprocessor"></span>
38 00031 <span class="preprocessor">#include "<a class="code" href="global_8h.html">global.h</a>"</span>
39 00032
40 00033 <span class="comment">// defines and constants</span>
41 00034 <span class="comment">// commands</span>
42 <a name="l00035"></a><a class="code" href="spieeprom_8h.html#a0">00035</a> <span class="preprocessor">#define SPIEEPROM_CMD_READ 0x03 </span><span class="comment">///&lt; Read byte(s)</span>
43 <a name="l00036"></a><a class="code" href="spieeprom_8h.html#a1">00036</a> <span class="comment"></span>#define SPIEEPROM_CMD_WRITE 0x02 <span class="comment">///&lt; Write byte(s)</span>
44 <a name="l00037"></a><a class="code" href="spieeprom_8h.html#a2">00037</a> <span class="comment"></span>#define SPIEEPROM_CMD_WREN 0x06 <span class="comment">///&lt; Write Enable</span>
45 <a name="l00038"></a><a class="code" href="spieeprom_8h.html#a3">00038</a> <span class="comment"></span>#define SPIEEPROM_CMD_WRDI 0x04 <span class="comment">///&lt; Write Disable</span>
46 <a name="l00039"></a><a class="code" href="spieeprom_8h.html#a4">00039</a> <span class="comment"></span>#define SPIEEPROM_CMD_RDSR 0x05 <span class="comment">///&lt; Read Status Register</span>
47 <a name="l00040"></a><a class="code" href="spieeprom_8h.html#a5">00040</a> <span class="comment"></span>#define SPIEEPROM_CMD_WRSR 0x01 <span class="comment">///&lt; Write Status Register</span>
48 00041 <span class="comment"></span>
49 00042 <span class="comment">// status register bit defines</span>
50 <a name="l00043"></a><a class="code" href="spieeprom_8h.html#a6">00043</a> <span class="preprocessor">#define SPIEEPROM_STATUS_WIP 0x01 </span><span class="comment">///&lt; Write in progress</span>
51 <a name="l00044"></a><a class="code" href="spieeprom_8h.html#a7">00044</a> <span class="comment"></span>#define SPIEEPROM_STATUS_WEL 0x01 <span class="comment">///&lt; Write enable</span>
52 <a name="l00045"></a><a class="code" href="spieeprom_8h.html#a8">00045</a> <span class="comment"></span>#define SPIEEPROM_STATUS_BP0 0x01 <span class="comment">///&lt; Block Proection 0</span>
53 <a name="l00046"></a><a class="code" href="spieeprom_8h.html#a9">00046</a> <span class="comment"></span>#define SPIEEPROM_STATUS_BP1 0x01 <span class="comment">///&lt; Block Proection 1</span>
54 <a name="l00047"></a><a class="code" href="spieeprom_8h.html#a10">00047</a> <span class="comment"></span>#define SPIEEPROM_STATUS_WPEN 0x01 <span class="comment">///&lt; Write Protect Enable</span>
55 00048 <span class="comment"></span>
56 00049 <span class="comment">// functions</span>
57 00050 <span class="comment"></span>
58 00051 <span class="comment">//! Initialize SPI EEPROM interface</span>
59 00052 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="spieeprom_8c.html#a0">spieepromInit</a>(<span class="keywordtype">void</span>);
60 00053 <span class="comment"></span>
61 00054 <span class="comment">//! In the SPI EEPROM read a byte from memory location [memAddr]</span>
62 00055 <span class="comment"></span>u08 <a class="code" href="spieeprom_8c.html#a1">spieepromReadByte</a>(u32 memAddr);
63 00056 <span class="comment"></span>
64 00057 <span class="comment">//! In the SPI EEPROM write a byte [data] to the memory location [memAddr]</span>
65 00058 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="spieeprom_8c.html#a2">spieepromWriteByte</a>(u32 memAddr, u08 data);
66 00059
67 00060 <span class="keywordtype">void</span> spieepromWriteEnable(<span class="keywordtype">void</span>);
68 00061 <span class="keywordtype">void</span> spieepromWriteDisable(<span class="keywordtype">void</span>);
69 00062 u08 spieepromReadStatus(<span class="keywordtype">void</span>);
70 00063
71 00064 <span class="preprocessor">#endif</span>
72 </pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Oct 29 03:41:07 2006 for Procyon AVRlib by&nbsp;
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