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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Sample MSP430-4619LCD Project: at_flash.c Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.1 --><div class="tabs"> <ul> <li><a href="main.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul></div><h1>at_flash.c</h1><a href="at__flash_8c.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"> * File: at_flash.c</span><a name="l00003"></a>00003 <span class="comment"> * Purpose: Atmel flash handler functions</span><a name="l00004"></a>00004 <span class="comment"> * Author: Peter Ivanov, Olimex Ltd.</span><a name="l00005"></a>00005 <span class="comment"> * Modified by:</span><a name="l00006"></a>00006 <span class="comment"> * Created: 2007-05-19 11:29:32</span><a name="l00007"></a>00007 <span class="comment"> * Last modify: 2007-10-14 15:39:42 ivanovp {Time-stamp}</span><a name="l00008"></a>00008 <span class="comment"> * Copyright: (C) Peter Ivanov, 2007</span><a name="l00009"></a>00009 <span class="comment"> * Licence: GPL</span><a name="l00010"></a>00010 <span class="comment"> */</span><a name="l00016"></a>00016 <span class="preprocessor">#include <msp430xG461x.h></span><a name="l00017"></a>00017 <span class="preprocessor">#include "<a class="code" href="at__flash_8h.html">at_flash.h</a>"</span><a name="l00018"></a>00018 <a name="l00019"></a><a class="code" href="at__flash_8c.html#0f07c78ce62ce80758c4615213a90663">00019</a> <span class="preprocessor">#define BUFFER_1_WRITE 0x84 // buffer 1 write</span><a name="l00020"></a><a class="code" href="at__flash_8c.html#b36d57477d32137c6f4e8c24bc78d9aa">00020</a> <span class="preprocessor"></span><span class="preprocessor">#define BUFFER_2_WRITE 0x87 // buffer 2 write</span><a name="l00021"></a><a class="code" href="at__flash_8c.html#9c7f1a5d6ee8efc8fbd8a83078f5971f">00021</a> <span class="preprocessor"></span><span class="preprocessor">#define BUFFER_1_READ 0x54 // buffer 1 read</span><a name="l00022"></a><a class="code" href="at__flash_8c.html#898d4e010964e67d897b7b733aa585b7">00022</a> <span class="preprocessor"></span><span class="preprocessor">#define BUFFER_2_READ 0x56 // buffer 2 read </span><a name="l00023"></a><a class="code" href="at__flash_8c.html#23a4b7e6726c1b4a3852936105455840">00023</a> <span class="preprocessor"></span><span class="preprocessor">#define B1_TO_MM_PAGE_PROG_WITH_ERASE 0x83 // buffer 1 to main memory page program with built-in erase</span><a name="l00024"></a><a class="code" href="at__flash_8c.html#85a94a63b662b87abe00db30afdea69d">00024</a> <span class="preprocessor"></span><span class="preprocessor">#define B2_TO_MM_PAGE_PROG_WITH_ERASE 0x86 // buffer 2 to main memory page program with built-in erase</span><a name="l00025"></a><a class="code" href="at__flash_8c.html#abfc22a06e0637927126ad9ba7ed6e30">00025</a> <span class="preprocessor"></span><span class="preprocessor">#define B1_TO_MM_PAGE_PROG_WITHOUT_ERASE 0x88 // buffer 1 to main memory page program without built-in erase</span><a name="l00026"></a><a class="code" href="at__flash_8c.html#5382a7fce51a1f0bcaf4317f33eec3b8">00026</a> <span class="preprocessor"></span><span class="preprocessor">#define B2_TO_MM_PAGE_PROG_WITHOUT_ERASE 0x89 // buffer 2 to main memory page program without built-in erase</span><a name="l00027"></a><a class="code" href="at__flash_8c.html#86092676de8aa6be4564f81b16f59cb2">00027</a> <span class="preprocessor"></span><span class="preprocessor">#define MM_PAGE_PROG_THROUGH_B1 0x82 // main memory page program through buffer 1</span><a name="l00028"></a><a class="code" href="at__flash_8c.html#6468cb5b5b358ca15462153c515cd154">00028</a> <span class="preprocessor"></span><span class="preprocessor">#define MM_PAGE_PROG_THROUGH_B2 0x85 // main memory page program through buffer 2</span><a name="l00029"></a><a class="code" href="at__flash_8c.html#2ccef99155a270335c9c57da3c9ea777">00029</a> <span class="preprocessor"></span><span class="preprocessor">#define AUTO_PAGE_REWRITE_THROUGH_B1 0x58 // auto page rewrite through buffer 1</span><a name="l00030"></a><a class="code" href="at__flash_8c.html#e923077d89eb92c61734c7fe35550289">00030</a> <span class="preprocessor"></span><span class="preprocessor">#define AUTO_PAGE_REWRITE_THROUGH_B2 0x59 // auto page rewrite through buffer 2</span><a name="l00031"></a><a class="code" href="at__flash_8c.html#0e6a342aa6cc6980988847d2be36ee32">00031</a> <span class="preprocessor"></span><span class="preprocessor">#define MM_PAGE_TO_B1_COMP 0x60 // main memory page compare to buffer 1</span><a name="l00032"></a><a class="code" href="at__flash_8c.html#2c7f853ba7dca8e88c9ceae10e7034db">00032</a> <span class="preprocessor"></span><span class="preprocessor">#define MM_PAGE_TO_B2_COMP 0x61 // main memory page compare to buffer 2</span><a name="l00033"></a><a class="code" href="at__flash_8c.html#00c2afadf00a1682f848bea6c3e30637">00033</a> <span class="preprocessor"></span><span class="preprocessor">#define MM_PAGE_TO_B1_XFER 0x53 // main memory page to buffer 1 transfer</span><a name="l00034"></a><a class="code" href="at__flash_8c.html#55e0626ccc31a04bf314e35938bfd6b4">00034</a> <span class="preprocessor"></span><span class="preprocessor">#define MM_PAGE_TO_B2_XFER 0x55 // main memory page to buffer 2 transfer</span><a name="l00035"></a><a class="code" href="at__flash_8c.html#4b3e9f05c45b30ca53c944bacd2b1c70">00035</a> <span class="preprocessor"></span><span class="preprocessor">#define READ_STATUS_REGISTER 0xD7 // read status register</span><a name="l00036"></a><a class="code" href="at__flash_8c.html#b95df16e6f94713c84d89a2333684a2f">00036</a> <span class="preprocessor"></span><span class="preprocessor">#define CONTINUOUS_ARRAY_READ 0xE8 // continuous read</span><a name="l00037"></a><a class="code" href="at__flash_8c.html#d106c17a9f846a7f2dcdbfbf469d6d57">00037</a> <span class="preprocessor"></span><span class="preprocessor">#define MAIN_MEMORY_PAGE_READ 0x52 // main page read</span><a name="l00038"></a><a class="code" href="at__flash_8c.html#5f833a2987f343522e49dc7a9abb7fbc">00038</a> <span class="preprocessor"></span><span class="preprocessor">#define PAGE_ERASE 0x81 // page erase</span><a name="l00039"></a>00039 <span class="preprocessor"></span><a name="l00040"></a>00040 <span class="comment">// buffer for test</span><a name="l00041"></a><a class="code" href="at__flash_8c.html#a1e60a2af66be88846092de8c61d3c5b">00041</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="at__flash_8c.html#a1e60a2af66be88846092de8c61d3c5b">WriteBuffer</a>[] = { 1, 2, 3, 4, 5, 6, 5, 8, 9, 0 };<a name="l00042"></a><a class="code" href="at__flash_8c.html#866f3e8594f9e153cc8787865c71eb94">00042</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="at__flash_8c.html#866f3e8594f9e153cc8787865c71eb94">ReadBuffer</a>[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };<a name="l00043"></a>00043 <a name="l00044"></a><a class="code" href="at__flash_8h.html#f037e86ff2ad32e508b18bb5b87b4ce0">00044</a> <span class="keywordtype">void</span> <a class="code" href="at__flash_8c.html#f037e86ff2ad32e508b18bb5b87b4ce0">InitUCA_SPI</a>(<span class="keywordtype">void</span>) <a name="l00045"></a>00045 {<a name="l00046"></a>00046 <span class="comment">// master mode, data valid on rising edge, msb first</span><a name="l00047"></a>00047 UCA0CTL0 = UCCKPH + UCMST + UCMSB + UCSYNC;<a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="comment">// clock -> SMCLK</span><a name="l00050"></a>00050 UCA0CTL1 = UCSSEL1;<a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="comment">// Baud Rate</span><a name="l00053"></a>00053 UCA0BR0 = 0x80; <a name="l00054"></a>00054 UCA0BR0 = 0x00; <span class="comment">// BR1 ??? XXX</span><a name="l00055"></a>00055 <a name="l00056"></a>00056 <span class="comment">// second functionality of pin</span><a name="l00057"></a>00057 P7SEL |= 0x0e; <span class="comment">// P7.1-3 SPI option select</span><a name="l00058"></a>00058 P7DIR |= 0x0b; <span class="comment">// P7.0 output direction</span><a name="l00059"></a>00059 P7OUT |= 0x01; <span class="comment">// P7.0 HIGH</span><a name="l00060"></a>00060 <a name="l00061"></a>00061 }<a name="l00062"></a>00062 <a name="l00063"></a><a class="code" href="at__flash_8c.html#b22e3440d3141e07f3cd35c851e61ea7">00063</a> <span class="keywordtype">void</span> <a class="code" href="at__flash_8c.html#b22e3440d3141e07f3cd35c851e61ea7">FlashEnable</a>(<span class="keywordtype">void</span>) <a name="l00064"></a>00064 {<a name="l00065"></a>00065 <span class="comment">// Set P7.0 to LOW</span><a name="l00066"></a>00066 P7OUT &= ~0x01;<a name="l00067"></a>00067 }<a name="l00068"></a>00068 <a name="l00069"></a><a class="code" href="at__flash_8c.html#7468e8d37525b52a6ddeb8cdfb87830f">00069</a> <span class="keywordtype">void</span> <a class="code" href="at__flash_8c.html#7468e8d37525b52a6ddeb8cdfb87830f">FlashDisable</a>(<span class="keywordtype">void</span>) <a name="l00070"></a>00070 {<a name="l00071"></a>00071 <span class="comment">// Set P7.0 to HIGH</span><a name="l00072"></a>00072 P7OUT |= 0x01;<a name="l00073"></a>00073 }<a name="l00074"></a>00074 <a name="l00075"></a><a class="code" href="at__flash_8c.html#350968de96a46f271c4dbdce1e7063d3">00075</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="at__flash_8c.html#350968de96a46f271c4dbdce1e7063d3">WriteByte</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> data) <a name="l00076"></a>00076 {<a name="l00077"></a>00077 <span class="keywordflow">while</span> ((IFG2&UCA0TXIFG)==0); <span class="comment">// wait while not ready / for RX</span><a name="l00078"></a>00078 UCA0TXBUF = data; <span class="comment">// write</span><a name="l00079"></a>00079 <span class="keywordflow">while</span> ((IFG2&UCA0RXIFG)==0); <span class="comment">// wait for RX buffer (full)</span><a name="l00080"></a>00080 <span class="keywordflow">return</span> (UCA0RXBUF);<a name="l00081"></a>00081 }<a name="l00082"></a>00082 <a name="l00083"></a><a class="code" href="at__flash_8c.html#01d6928730aa1b0a9eed14d0829723b3">00083</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="at__flash_8c.html#01d6928730aa1b0a9eed14d0829723b3">FlashBusy</a>(<span class="keywordtype">void</span>)<a name="l00084"></a>00084 {<a name="l00085"></a>00085 <a name="l00086"></a>00086 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> result;<a name="l00087"></a>00087 <a name="l00088"></a>00088 <a class="code" href="at__flash_8c.html#b22e3440d3141e07f3cd35c851e61ea7">FlashEnable</a>();<a name="l00089"></a>00089 <a name="l00090"></a>00090 <span class="comment">// Send RDSR - Read Status Register opcode</span><a name="l00091"></a>00091 <a class="code" href="at__flash_8c.html#350968de96a46f271c4dbdce1e7063d3">WriteByte</a>(<a class="code" href="at__flash_8c.html#4b3e9f05c45b30ca53c944bacd2b1c70">READ_STATUS_REGISTER</a>);<a name="l00092"></a>00092 <a name="l00093"></a>00093 <span class="comment">// Get register contents</span><a name="l00094"></a>00094 result = <a class="code" href="at__flash_8c.html#350968de96a46f271c4dbdce1e7063d3">WriteByte</a>(0x0);<a name="l00095"></a>00095 <a name="l00096"></a>00096 <a class="code" href="at__flash_8c.html#7468e8d37525b52a6ddeb8cdfb87830f">FlashDisable</a>();<a name="l00097"></a>00097 <a name="l00098"></a>00098 <span class="keywordflow">if</span> (result&0x80)<a name="l00099"></a>00099 {<a name="l00100"></a>00100 <span class="keywordflow">return</span> 0;<a name="l00101"></a>00101 }<a name="l00102"></a>00102 <span class="keywordflow">else</span><a name="l00103"></a>00103 {<a name="l00104"></a>00104 <span class="keywordflow">return</span> 1;<a name="l00105"></a>00105 }<a name="l00106"></a>00106 <a name="l00107"></a>00107 }<a name="l00108"></a>00108 <a name="l00109"></a><a class="code" href="at__flash_8c.html#a927c9a4078992c84b2797908f2ba130">00109</a> <span class="keywordtype">void</span> <a class="code" href="at__flash_8c.html#a927c9a4078992c84b2797908f2ba130">ByteToBuffer</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> byte, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> address) <a name="l00110"></a>00110 {<a name="l00111"></a>00111 <a name="l00112"></a>00112 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> addr = 0;<a name="l00113"></a>00113 <span class="comment">//unsigned int page = 0;</span><a name="l00114"></a>00114 <a name="l00115"></a>00115 <span class="comment">//page = address/264;</span><a name="l00116"></a>00116 addr = address%264; <a name="l00117"></a>00117 <a name="l00118"></a>00118 <span class="comment">// Wait for write to complete</span><a name="l00119"></a>00119 <span class="keywordflow">while</span>( <a class="code" href="at__flash_8c.html#01d6928730aa1b0a9eed14d0829723b3">FlashBusy</a>() ); <a name="l00120"></a>00120 <a name="l00121"></a>00121 <span class="comment">// perform to transfer</span><a name="l00122"></a>00122 <a name="l00123"></a>00123 <span class="comment">// Set the Write Enable latch</span><a name="l00124"></a>00124 <a class="code" href="at__flash_8c.html#b22e3440d3141e07f3cd35c851e61ea7">FlashEnable</a>();<a name="l00125"></a>00125 <a name="l00126"></a>00126 <a class="code" href="at__flash_8c.html#350968de96a46f271c4dbdce1e7063d3">WriteByte</a>(<a class="code" href="at__flash_8c.html#0f07c78ce62ce80758c4615213a90663">BUFFER_1_WRITE</a>);<a name="l00127"></a>00127 <a name="l00128"></a>00128 <a class="code" href="at__flash_8c.html#350968de96a46f271c4dbdce1e7063d3">WriteByte</a>(0x00);<a name="l00129"></a>00129 <a name="l00130"></a>00130 <a class="code" href="at__flash_8c.html#350968de96a46f271c4dbdce1e7063d3">WriteByte</a>((*((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&addr +1)));<a name="l00131"></a>00131 <a name="l00132"></a>00132 <a class="code" href="at__flash_8c.html#350968de96a46f271c4dbdce1e7063d3">WriteByte</a>(((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>)addr));<a name="l00133"></a>00133 <a name="l00134"></a>00134 <span class="comment">// Send the byte to write</span><a name="l00135"></a>00135 <a class="code" href="at__flash_8c.html#350968de96a46f271c4dbdce1e7063d3">WriteByte</a>(byte);<a name="l00136"></a>00136 <a name="l00137"></a>00137 <a class="code" href="at__flash_8c.html#7468e8d37525b52a6ddeb8cdfb87830f">FlashDisable</a>();⌨️ 快捷键说明
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