board_8h-source.html

MP3播放器源代码, VS1003B

00144 
<a name="l00146"></a><a class="code" href="board_8h.html#a25">00146</a> <span class="preprocessor">#define RSEN P2_1</span>
00147 <span class="preprocessor"></span>
00148 
00149 
00150 <span class="comment">/*</span>
00151 <span class="comment"> * MMC connections </span>
00152 <span class="comment"> */</span>
00153 
00154 
<a name="l00156"></a><a class="code" href="board_8h.html#a26">00156</a> <span class="preprocessor">#define YES 1</span>
00157 <span class="preprocessor"></span>
<a name="l00159"></a><a class="code" href="board_8h.html#a27">00159</a> <span class="preprocessor">#define NO 0</span>
00160 <span class="preprocessor"></span>
<a name="l00162"></a><a class="code" href="board_8h.html#a28">00162</a> <span class="preprocessor">#define MMC_OFF P2_7</span>
00163 <span class="preprocessor"></span>
<a name="l00165"></a><a class="code" href="board_8h.html#a29">00165</a> <span class="preprocessor">#define MMC_XCS P2_6</span>
00166 <span class="preprocessor"></span>
<a name="l00168"></a><a class="code" href="board_8h.html#a30">00168</a> <span class="preprocessor">#define MMC_SELECTED 0</span>
00169 <span class="preprocessor"></span>
<a name="l00171"></a><a class="code" href="board_8h.html#a31">00171</a> <span class="preprocessor">#define MMC_NOT_SELECTED 1</span>
00172 <span class="preprocessor"></span>
00173 
<a name="l00175"></a><a class="code" href="board_8h.html#a32">00175</a> <span class="preprocessor">#define MMCSelect(){MMC_XCS = MMC_SELECTED;}</span>
00176 <span class="preprocessor"></span>
<a name="l00178"></a><a class="code" href="board_8h.html#a33">00178</a> <span class="preprocessor">#define MMCDeselect(){MMC_XCS = MMC_NOT_SELECTED;}</span>
00179 <span class="preprocessor"></span>
00180 
00181 
00182 
00183 <span class="comment">/* Utility macros */</span>
00184 
00185 
00186 
00187 <span class="comment">/* Delay system */</span>
00188 
00189 
<a name="l00191"></a><a class="code" href="board_8h.html#a34">00191</a> <span class="preprocessor">#define ClearPCAOverflow() {CCON &amp;= 0x7f;}</span>
00192 <span class="preprocessor"></span>
<a name="l00194"></a><a class="code" href="board_8h.html#a35">00194</a> <span class="preprocessor">#define PCARun() {CCON |= 0x40;}</span>
00195 <span class="preprocessor"></span>
<a name="l00197"></a><a class="code" href="board_8h.html#a36">00197</a> <span class="preprocessor">#define PCAHalt() {CCON &amp;= 0xBF;}</span>
00198 <span class="preprocessor"></span>
<a name="l00200"></a><a class="code" href="board_8h.html#a37">00200</a> <span class="preprocessor">#define PCAHaltAndClearOV() {CCON &amp;= 0x3F;}</span>
00201 <span class="preprocessor"></span>
00202 
<a name="l00204"></a><a class="code" href="board_8h.html#a38">00204</a> <span class="preprocessor">#define SetPCAValue(v) {CH = ((unsigned)(v)) &gt;&gt; 8;  CL = (v) &amp; 0xff;}</span>
00205 <span class="preprocessor"></span>
<a name="l00207"></a><a class="code" href="board_8h.html#a39">00207</a> <span class="preprocessor">#define SetPCADelayValue(microseconds) {SetPCAValue(65535-(unsigned int)((microseconds)/0.4069010));}</span>
00208 <span class="preprocessor"></span>
<a name="l00210"></a><a class="code" href="board_8h.html#a40">00210</a> <span class="preprocessor">#define InitiateDelay(microseconds) {PCAHaltAndClearOV(); SetPCADelayValue(microseconds); PCARun();}</span>
00211 <span class="preprocessor"></span>
<a name="l00221"></a><a class="code" href="board_8h.html#a41">00221</a> <span class="preprocessor">#define WaitOutDelay(){while (!(CCON &amp; 0x80));}</span>
00222 <span class="preprocessor"></span>
00223 
00224 
00225 <span class="comment">/* SPI macros */</span>
00226 
<a name="l00228"></a><a class="code" href="board_8h.html#a42">00228</a> <span class="preprocessor">#define SPISetFastClock(){SPCON=0x71;}  </span><span class="comment">/* 0x73 is much slower*/</span>
00229 
00230 
<a name="l00232"></a><a class="code" href="board_8h.html#a43">00232</a> <span class="preprocessor">#define SPIWait(){while(!(SPSTA &amp; 0x80));;}</span>
00233 <span class="preprocessor"></span>
<a name="l00235"></a><a class="code" href="board_8h.html#a44">00235</a> <span class="preprocessor">#define SPIPutChar(c){SPIWait();SPDAT=(c);}</span>
00236 <span class="preprocessor"></span>
<a name="l00238"></a><a class="code" href="board_8h.html#a45">00238</a> <span class="preprocessor">#define SPIPutCharWithoutWaiting(c){SPDAT=(c);}</span>
00239 <span class="preprocessor"></span>
<a name="l00241"></a><a class="code" href="board_8h.html#a46">00241</a> <span class="preprocessor">#define SPI_RESULT_BYTE SPDAT</span>
00242 <span class="preprocessor"></span>
00244 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="board_8c.html#a1">SPIGetChar</a>();
00245 
00247 <span class="keywordtype">void</span> <a class="code" href="board_8h.html#a50">SPI8Clocks</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> nClocks);
00248 
00249 
00250 
00252 <span class="keyword">extern</span> <span class="keyword">union </span><a class="code" href="unionTemp.html">Temp</a> {
<a name="l00253"></a><a class="code" href="unionTemp.html#o0">00253</a>   <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="unionTemp.html#o0">c</a>;
<a name="l00254"></a><a class="code" href="unionTemp.html#o1">00254</a>   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="unionTemp.html#o1">i</a>;
<a name="l00255"></a><a class="code" href="unionTemp.html#o2">00255</a>   <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="unionTemp.html#o2">l</a>;
00256   <span class="keyword">struct </span>{
<a name="l00257"></a><a class="code" href="unionTemp.html#o3">00257</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="unionTemp.html#o3">b0</a>;
<a name="l00258"></a><a class="code" href="unionTemp.html#o4">00258</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="unionTemp.html#o4">b1</a>;
<a name="l00259"></a><a class="code" href="unionTemp.html#o5">00259</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="unionTemp.html#o5">b2</a>;
<a name="l00260"></a><a class="code" href="unionTemp.html#o6">00260</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="unionTemp.html#o6">b3</a>;
00261   } b;
00262 } <a class="code" href="board_8c.html#a0">temp</a>;
00263 
00264 
00265 
00266 
00267 
00268 <span class="comment">/* Utility functions */</span>
00269 
00271 <span class="keywordtype">void</span> <a class="code" href="board_8h.html#a51">Delay</a> (<span class="keywordtype">int</span> milliseconds);
00272 
00274 <span class="keywordtype">void</span> <a class="code" href="board_8c.html#a4">InitBoard</a>();
00275 
00276 
00277 
<a name="l00280"></a><a class="code" href="board_8h.html#a47">00280</a> <span class="preprocessor">#define Public</span>
00281 <span class="preprocessor"></span>
00282 
00283 
00284 <span class="preprocessor">#endif</span>
</div></pre><hr>
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All software copyright 2000-2004 <a href="http://www.vlsi.fi/"> VLSI Solution OY.</a>
Redistribution of these software modules are limited to promotional use only
and only with the VS1011 / VS1002 / VS1003  MP3-Evakit evaluation boards. Free or
commercial use of these software modules in MP3 players is ok if the
product includes MP3 decoder chip(s) from VLSI. You can request the complete
(compilable) package from [e-mail]
</FONT>