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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>VLSI Solution Oy Evaluation MP3 Player Source Code Documentation</title><link href="doxygen.css" rel="stylesheet" type="text/css"><img src="vlsi_small.gif" hspace="20" bordercolor="#ffffff" alt="VLSI Solution Oy"><b>VLSI Solution Oy Evaluation MP3 Player Source Code Documentation</b><p></p></head><body><!-- Generated by Doxygen 1.3.7 --><div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a> | <a class="qindex" href="pages.html">Related Pages</a></div><h1>vs10xx.c</h1><a href="vs10xx_8c.html">Go to the documentation of this file.</a><pre class="fragment"><div>00001 00007 <span class="preprocessor">#include "<a class="code" href="vs10xx_8h.html">vs10xx.h</a>"</span>00008 <span class="preprocessor">#include "<a class="code" href="lcd_8h.html">lcd.h</a>"</span>00009 <span class="preprocessor">#include "<a class="code" href="filesys_8h.html">filesys.h</a>"</span>00010 <span class="preprocessor">#include "<a class="code" href="storage_8h.html">storage.h</a>"</span>00011 <span class="preprocessor">#include "<a class="code" href="ui_8h.html">ui.h</a>"</span>00012 00013 00014 00015 <a name="l00017"></a><a class="code" href="vs10xx_8h.html#a38">00017</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="vs10xx_8h.html#a38">Mp3ReadRegister</a> (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> addressbyte){00018 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> resultvalue = 0;00019 00020 <a class="code" href="board_8h.html#a4">Mp3SelectControl</a>();00021 <a class="code" href="board_8h.html#a45">SPIPutCharWithoutWaiting</a>(<a class="code" href="vs10xx_8h.html#a1">VS_READ_COMMAND</a>);00022 <a class="code" href="board_8h.html#a44">SPIPutChar</a>((addressbyte));00023 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0xff);00024 <a class="code" href="board_8h.html#a43">SPIWait</a>();00025 resultvalue = (<a class="code" href="board_8h.html#a46">SPI_RESULT_BYTE</a>) << 8;00026 <a class="code" href="board_8h.html#a45">SPIPutCharWithoutWaiting</a>(0xff);00027 <a class="code" href="board_8h.html#a43">SPIWait</a>();00028 resultvalue |= (<a class="code" href="board_8h.html#a46">SPI_RESULT_BYTE</a>);00029 <a class="code" href="board_8h.html#a5">Mp3DeselectControl</a>();00030 <span class="keywordflow">return</span> resultvalue;00031 }00032 00033 <a name="l00035"></a><a class="code" href="vs10xx_8h.html#a37">00035</a> <span class="keywordtype">void</span> <a class="code" href="vs10xx_8c.html#a2">Mp3SoftReset</a>(){00036 00037 <span class="comment">/* Soft Reset of VS10xx */</span>00038 <a class="code" href="vs10xx_8h.html#a32">Mp3WriteRegister</a> (<a class="code" href="vs10xx_8h.html#a2">SPI_MODE</a>, 0x08, 0x04); <span class="comment">/* Newmode, Reset, No L1-2 */</span>00039 00040 <a class="code" href="board_8h.html#a51">Delay</a>(1); <span class="comment">/* One millisecond delay */</span>00041 <span class="keywordflow">while</span> (!<a class="code" href="board_8h.html#a9">MP3_DREQ</a>) <span class="comment">/* wait for startup */</span>00042 ;00043 00044 <span class="comment">/* Set clock register, doubler etc. */</span>00045 <span class="preprocessor">#ifdef VS1003</span>00046 <span class="preprocessor"></span> <a class="code" href="vs10xx_8h.html#a32">Mp3WriteRegister</a>(<a class="code" href="vs10xx_8h.html#a5">SPI_CLOCKF</a>, 0xa6, 0x96);00047 <span class="preprocessor">#else</span>00048 <span class="preprocessor"></span> <a class="code" href="vs10xx_8h.html#a32">Mp3WriteRegister</a>(<a class="code" href="vs10xx_8h.html#a5">SPI_CLOCKF</a>, 156, 204);00049 <span class="preprocessor">#endif</span>00050 <span class="preprocessor"></span> 00051 <a class="code" href="board_8h.html#a51">Delay</a>(1); <span class="comment">/* One millisecond delay */</span>00052 00053 00054 <span class="comment">/* Send null bytes to data interface */</span>00055 <a class="code" href="board_8h.html#a7">Mp3SelectData</a>();00056 <a class="code" href="board_8h.html#a45">SPIPutCharWithoutWaiting</a>(0);00057 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0);00058 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0);00059 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0);00060 <a class="code" href="board_8h.html#a43">SPIWait</a>();00061 <a class="code" href="board_8h.html#a8">Mp3DeselectData</a>();00062 00063 }00064 00065 00066 00067 <a name="l00069"></a><a class="code" href="vs10xx_8h.html#a36">00069</a> <span class="keywordtype">void</span> <a class="code" href="vs10xx_8c.html#a3">Mp3Reset</a>(){00070 00071 <a class="code" href="board_8h.html#a1">Mp3PutInReset</a>();00072 <a class="code" href="board_8h.html#a51">Delay</a>(1);00073 00074 <span class="comment">/* Send dummy SPI byte to initialize SPI */</span>00075 <a class="code" href="board_8h.html#a45">SPIPutCharWithoutWaiting</a>(0xFF);00076 00077 <span class="comment">/* Un-reset MP3 chip */</span>00078 <a class="code" href="board_8h.html#a5">Mp3DeselectControl</a>();00079 <a class="code" href="board_8h.html#a8">Mp3DeselectData</a>();00080 <a class="code" href="board_8h.html#a2">Mp3ReleaseFromReset</a>();00081 <a class="code" href="vs10xx_8h.html#a33">Mp3SetVolume</a>(0xff,0xff);00082 00083 <span class="comment">/* Set clock register, doubler etc. */</span>00084 <span class="preprocessor">#ifdef VS1003</span>00085 <span class="preprocessor"></span> <a class="code" href="vs10xx_8h.html#a32">Mp3WriteRegister</a>(<a class="code" href="vs10xx_8h.html#a5">SPI_CLOCKF</a>, 0xa6, 0x96); <span class="comment">//oli 0xa66c</span>00086 <span class="preprocessor">#else</span>00087 <span class="preprocessor"></span> <a class="code" href="vs10xx_8h.html#a32">Mp3WriteRegister</a>(<a class="code" href="vs10xx_8h.html#a5">SPI_CLOCKF</a>, 156, 204);00088 <span class="preprocessor">#endif</span>00089 <span class="preprocessor"></span> 00090 <span class="comment">/* Wait for DREQ */</span>00091 <span class="keywordflow">while</span> (!<a class="code" href="board_8h.html#a9">MP3_DREQ</a>)00092 ;00093 00094 <span class="comment">/* Slow sample rate for slow analog part startup */</span>00095 <a class="code" href="vs10xx_8h.html#a32">Mp3WriteRegister</a>(<a class="code" href="vs10xx_8h.html#a7">SPI_AUDATA</a>, 0, 10); <span class="comment">/* 10 Hz */</span>00096 <a class="code" href="board_8h.html#a51">Delay</a>(100);00097 00098 <span class="comment">/* Switch on the analog parts */</span>00099 <a class="code" href="vs10xx_8h.html#a33">Mp3SetVolume</a>(0xfe,0xfe);00100 <a class="code" href="vs10xx_8h.html#a32">Mp3WriteRegister</a> (<a class="code" href="vs10xx_8h.html#a7">SPI_AUDATA</a>, 31, 64); <span class="comment">/* 8kHz */</span>00101 <a class="code" href="vs10xx_8h.html#a33">Mp3SetVolume</a>(20,20);00102 <a class="code" href="vs10xx_8c.html#a2">Mp3SoftReset</a>();00103 <a class="code" href="board_8h.html#a42">SPISetFastClock</a>();00104 00105 00106 ConsoleWrite (<span class="stringliteral">"Init: VS10XX\r"</span>);00107 00108 }00109 00110 <a name="l00112"></a><a class="code" href="vs10xx_8h.html#a35">00112</a> <span class="keywordtype">void</span> <a class="code" href="vs10xx_8c.html#a4">VsSineTest</a>(){00113 00114 <span class="comment">/* Reset MP3 chip */</span>00115 <a class="code" href="board_8h.html#a1">Mp3PutInReset</a>(); <span class="comment">/* Pull xRESET low -> hardware reset */</span>00116 <a class="code" href="board_8h.html#a51">Delay</a>(100); <span class="comment">/* 100 ms delay */</span>00117 00118 <span class="comment">/* Send dummy SPI byte to initialize SPI of Atmel microcontroller */</span>00119 <a class="code" href="board_8h.html#a45">SPIPutCharWithoutWaiting</a>(0xFF);00120 00121 <span class="comment">/* Un-reset MP3 chip */</span>00122 <a class="code" href="board_8h.html#a5">Mp3DeselectControl</a>(); <span class="comment">/* Pull xCS high */</span>00123 <a class="code" href="board_8h.html#a8">Mp3DeselectData</a>(); <span class="comment">/* Pull xDCS high */</span>00124 <a class="code" href="board_8h.html#a2">Mp3ReleaseFromReset</a>(); <span class="comment">/* Pull xRESET high */</span>00125 <a class="code" href="board_8h.html#a51">Delay</a>(100); <span class="comment">/* 100 ms delay */</span>00126 00127 <a class="code" href="board_8h.html#a11">GREEN_LED</a> = <a class="code" href="board_8h.html#a12">LED_ON</a>;00128 <a class="code" href="board_8h.html#a10">RED_LED</a> = <a class="code" href="board_8h.html#a12">LED_ON</a>;00129 00130 <span class="comment">/* VS10xx Application Notes, chapter 4.8 ---------------------------------*/</span>00131 <span class="comment">/* As an example, let's write value 0x0820 to register 00 byte by byte */</span>00132 <a class="code" href="board_8h.html#a4">Mp3SelectControl</a>(); <span class="comment">/* Now SPI writes go to SCI port */</span>00133 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x02); <span class="comment">/* Send SPI Byte, then wait for byte to be sent. */</span>00134 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x00); <span class="comment">/* 0x02 was WRITE command, 0x00 is register number */</span>00135 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x08); <span class="comment">/* This byte goes to MSB */</span>00136 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x20); <span class="comment">/* ..and this is LSB. (0x20=Allow Test Mode) */</span>00137 <a class="code" href="board_8h.html#a43">SPIWait</a>(); <span class="comment">/* Wait until Atmel MCU signals SPI write complete */</span>00138 <a class="code" href="board_8h.html#a5">Mp3DeselectControl</a>(); <span class="comment">/* Now SPI writes don't go to SCI port */</span>00139 00140 <span class="keywordflow">while</span> (!<a class="code" href="board_8h.html#a9">MP3_DREQ</a>) <span class="comment">/* Wait for DREQ = 1 */</span>00141 ; <span class="comment">/* Do nothing while waiting for DREQ = 1 */</span>00142 00143 <span class="comment">/* Send a Sine Test Header to Data port */</span>00144 <a class="code" href="board_8h.html#a7">Mp3SelectData</a>(); <span class="comment">/* Now SPI writes go to SDI port */</span>00145 00146 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x53); <span class="comment">/* - This is a special VLSI Solution test header - */</span>00147 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0xef); <span class="comment">/* - that starts a sine sound. It's good for - */</span>00148 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x6e); <span class="comment">/* - testing your code, the chip and also for - */</span>00149 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x44); <span class="comment">/* - seeing if your MP3 decoder was manufactured - */</span>00150 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x00); <span class="comment">/* - by VLSI Solution oy. ------------------------ */</span>00151 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x00);00152 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x00);00153 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x00);00154 <a class="code" href="board_8h.html#a43">SPIWait</a>();00155 <a class="code" href="board_8h.html#a8">Mp3DeselectData</a>();00156 00157 <a class="code" href="board_8h.html#a10">RED_LED</a> = <a class="code" href="board_8h.html#a13">LED_OFF</a>;00158 <a class="code" href="board_8h.html#a51">Delay</a> (500); <span class="comment">/* 500 ms delay */</span>00159 <a class="code" href="board_8h.html#a11">GREEN_LED</a> = <a class="code" href="board_8h.html#a13">LED_OFF</a>;00160 00161 <span class="comment">/* Stop the sine test sound */</span>00162 <a class="code" href="board_8h.html#a7">Mp3SelectData</a>();00163 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x45);00164 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x78);00165 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x69);00166 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x74);00167 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x00);00168 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x00);00169 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x00);00170 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0x00);00171 <a class="code" href="board_8h.html#a43">SPIWait</a>();00172 <a class="code" href="board_8h.html#a8">Mp3DeselectData</a>();00173 00174 <a class="code" href="board_8h.html#a51">Delay</a>(500); <span class="comment">/* 500 ms delay */</span>00175 } 00176 <a name="l00178"></a><a class="code" href="vs10xx_8h.html#a39">00178</a> <span class="keywordtype">void</span> <a class="code" href="vs10xx_8c.html#a5">SendZerosToVS10xx</a>(){00179 <a class="code" href="board_8h.html#a7">Mp3SelectData</a>();00180 <a class="code" href="board_8h.html#a45">SPIPutCharWithoutWaiting</a>(0);00181 <span class="keywordflow">for</span> (<a class="code" href="board_8c.html#a0">temp</a>.<a class="code" href="unionTemp.html#o1">i</a>=0; <a class="code" href="board_8c.html#a0">temp</a>.<a class="code" href="unionTemp.html#o1">i</a><1048; <a class="code" href="board_8c.html#a0">temp</a>.<a class="code" href="unionTemp.html#o1">i</a>++){ <span class="comment">/* TESTING 1048 TESTING */</span>00182 <span class="keywordflow">while</span> (!<a class="code" href="board_8h.html#a9">MP3_DREQ</a>)00183 ;00184 <a class="code" href="board_8h.html#a44">SPIPutChar</a>(0);00185 }⌨️ 快捷键说明
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