ks0108_8c-source.html

avr应用测试程序

00191     cbi(GLCD_CTRL_PORT, GLCD_CTRL_RW);
00192     sbi(GLCD_CTRL_PORT, GLCD_CTRL_E);
00193     outb(GLCD_DATA_DDR, 0xFF);
00194     outb(GLCD_DATA_PORT, data);
00195     <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>); <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>);
00196     <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>); <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>);
00197     <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>); <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>);
00198     <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>); <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>);
00199     cbi(GLCD_CTRL_PORT, GLCD_CTRL_E);
00200     sei();
00201 <span class="preprocessor">#else</span>
00202 <span class="preprocessor"></span>    <span class="comment">//sbi(MCUCR, SRW);              // enable RAM waitstate</span>
00203     glcdBusyWait(controller);       <span class="comment">// wait until LCD not busy</span>
00204     *(<span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) (GLCD_CONTROLLER0_CTRL_ADDR + GLCD_CONTROLLER_ADDR_OFFSET*controller) = data;
00205     <span class="comment">//cbi(MCUCR, SRW);              // disable RAM waitstate</span>
00206 <span class="preprocessor">#endif</span>
00207 <span class="preprocessor"></span>    <span class="comment">// increment our local address counter</span>
00208     GrLcdState.ctrlr[controller].xAddr++;
00209     GrLcdState.lcdXAddr++;
00210     <span class="keywordflow">if</span>(GrLcdState.lcdXAddr &gt;= GLCD_XPIXELS)
00211     {
00212         GrLcdState.lcdYAddr++;
00213         glcdSetYAddress(GrLcdState.lcdYAddr);
00214         glcdSetXAddress(0);
00215     }
00216 }
00217 
00218 u08 glcdDataRead(<span class="keywordtype">void</span>)
00219 {
00220     <span class="keyword">register</span> u08 data;
00221     <span class="keyword">register</span> u08 controller = (GrLcdState.lcdXAddr/GLCD_CONTROLLER_XPIXELS);
00222 <span class="preprocessor">#ifdef GLCD_PORT_INTERFACE</span>
00223 <span class="preprocessor"></span>    cli();
00224     glcdBusyWait(controller);       <span class="comment">// wait until LCD not busy</span>
00225     sbi(GLCD_CTRL_PORT, GLCD_CTRL_RS);
00226     outb(GLCD_DATA_DDR, 0x00);
00227     sbi(GLCD_CTRL_PORT, GLCD_CTRL_RW);
00228     sbi(GLCD_CTRL_PORT, GLCD_CTRL_E);
00229     <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>); <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>);
00230     <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>); <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>);
00231     <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>); <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>);
00232     <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>); <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>);
00233     data = inb(GLCD_DATA_PIN);
00234     cbi(GLCD_CTRL_PORT, GLCD_CTRL_E);
00235     cbi(GLCD_CTRL_PORT, GLCD_CTRL_RW);
00236     sei();
00237 <span class="preprocessor">#else</span>
00238 <span class="preprocessor"></span>    <span class="comment">//sbi(MCUCR, SRW);              // enable RAM waitstate</span>
00239     glcdBusyWait(controller);       <span class="comment">// wait until LCD not busy</span>
00240     data = *(<span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) (GLCD_CONTROLLER0_CTRL_ADDR + GLCD_CONTROLLER_ADDR_OFFSET*controller);
00241     <span class="comment">//cbi(MCUCR, SRW);              // disable RAM waitstate</span>
00242 <span class="preprocessor">#endif</span>
00243 <span class="preprocessor"></span>    <span class="comment">// increment our local address counter</span>
00244     GrLcdState.ctrlr[controller].xAddr++;
00245     GrLcdState.lcdXAddr++;
00246     <span class="keywordflow">if</span>(GrLcdState.lcdXAddr &gt;= GLCD_XPIXELS)
00247     {
00248         GrLcdState.lcdYAddr++;
00249         glcdSetYAddress(GrLcdState.lcdYAddr);
00250         glcdSetXAddress(0);
00251     }
00252     <span class="keywordflow">return</span> data;
00253 }
00254 
00255 <span class="keywordtype">void</span> glcdReset(u08 resetState)
00256 {
00257     <span class="comment">// reset lcd if argument is true</span>
00258     <span class="comment">// run lcd if argument is false</span>
00259 <span class="preprocessor">#ifdef GLCD_PORT_INTERFACE</span>
00260 <span class="preprocessor"></span>    <span class="keywordflow">if</span>(resetState)
00261         cbi(GLCD_CTRL_PORT, GLCD_CTRL_RESET);
00262     <span class="keywordflow">else</span>
00263         sbi(GLCD_CTRL_PORT, GLCD_CTRL_RESET);
00264 <span class="preprocessor">#endif</span>
00265 <span class="preprocessor"></span>}
00266 
00267 <span class="keywordtype">void</span> glcdSetXAddress(u08 xAddr)
00268 {
00269     u08 i;
00270     <span class="comment">// record address change locally</span>
00271     GrLcdState.lcdXAddr = xAddr;
00272     
00273     <span class="comment">// clear y (col) address on all controllers</span>
00274     <span class="keywordflow">for</span>(i=0; i&lt;GLCD_NUM_CONTROLLERS; i++)
00275     {
00276         glcdControlWrite(i, GLCD_SET_Y_ADDR | 0x00);
00277         GrLcdState.ctrlr[i].xAddr = 0;
00278     }
00279 
00280     <span class="comment">// set y (col) address on destination controller</span>
00281     glcdControlWrite((GrLcdState.lcdXAddr/GLCD_CONTROLLER_XPIXELS),
00282         GLCD_SET_Y_ADDR | (GrLcdState.lcdXAddr &amp; 0x3F));
00283 }
00284 
00285 <span class="keywordtype">void</span> glcdSetYAddress(u08 yAddr)
00286 {
00287     u08 i;
00288     <span class="comment">// record address change locally</span>
00289     GrLcdState.lcdYAddr = yAddr;
00290     <span class="comment">// set page address for all controllers</span>
00291     <span class="keywordflow">for</span>(i=0; i&lt;GLCD_NUM_CONTROLLERS; i++)
00292     {
00293         glcdControlWrite(i, GLCD_SET_PAGE | yAddr);
00294     }
00295 }
00296 
00297 <span class="comment">/*************************************************************/</span>
00298 <span class="comment">/********************* PUBLIC FUNCTIONS **********************/</span>
00299 <span class="comment">/*************************************************************/</span>
00300 
<a name="l00301"></a><a class="code" href="ks0108_8h.html#a19">00301</a> <span class="keywordtype">void</span> <a class="code" href="ks0108_8c.html#a11">glcdInit</a>()
00302 {
00303     u08 i;
00304     <span class="comment">// initialize hardware</span>
00305     glcdInitHW();
00306     <span class="comment">// bring lcd out of reset</span>
00307     glcdReset(FALSE);
00308     <span class="comment">// Turn on LCD</span>
00309     <span class="keywordflow">for</span>(i=0; i&lt;GLCD_NUM_CONTROLLERS; i++)
00310     {
00311         glcdControlWrite(i, GLCD_ON_CTRL | GLCD_ON_DISPLAY);
00312     }
00313     <span class="comment">// clear lcd</span>
00314     <a class="code" href="ks0108_8c.html#a13">glcdClearScreen</a>();
00315     <span class="comment">// initialize positions</span>
00316     <a class="code" href="ks0108_8c.html#a12">glcdHome</a>();
00317 }
00318 
<a name="l00319"></a><a class="code" href="ks0108_8h.html#a21">00319</a> <span class="keywordtype">void</span> <a class="code" href="ks0108_8c.html#a12">glcdHome</a>(<span class="keywordtype">void</span>)
00320 {
00321     u08 i;
00322     <span class="comment">// initialize addresses/positions</span>
00323     <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(0);
00324     <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(0,0);
00325     <span class="comment">// initialize local data structures</span>
00326     <span class="keywordflow">for</span>(i=0; i&lt;GLCD_NUM_CONTROLLERS; i++)
00327     {
00328         GrLcdState.ctrlr[i].xAddr = 0;
00329         GrLcdState.ctrlr[i].yAddr = 0;
00330     }
00331 }
00332 
<a name="l00333"></a><a class="code" href="ks0108_8h.html#a20">00333</a> <span class="keywordtype">void</span> <a class="code" href="ks0108_8c.html#a13">glcdClearScreen</a>(<span class="keywordtype">void</span>)
00334 {
00335     u08 pageAddr;
00336     u08 xAddr;
00337 
00338     <span class="comment">// clear LCD</span>
00339     <span class="comment">// loop through all pages</span>
00340     <span class="keywordflow">for</span>(pageAddr=0; pageAddr&lt;(GLCD_YPIXELS&gt;&gt;3); pageAddr++)
00341     {
00342         <span class="comment">// set page address</span>
00343         <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(0, pageAddr);
00344         <span class="comment">// clear all lines of this page of display memory</span>
00345         <span class="keywordflow">for</span>(xAddr=0; xAddr&lt;GLCD_XPIXELS; xAddr++)
00346         {
00347             glcdDataWrite(0x00);
00348         }
00349     }
00350 }
00351 
<a name="l00352"></a><a class="code" href="ks0108_8h.html#a24">00352</a> <span class="keywordtype">void</span> <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(u08 start)
00353 {
00354     glcdControlWrite(0, GLCD_START_LINE | start);
00355     glcdControlWrite(1, GLCD_START_LINE | start);
00356 }
00357 
<a name="l00358"></a><a class="code" href="ks0108_8h.html#a23">00358</a> <span class="keywordtype">void</span> <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(u08 x, u08 yLine)
00359 {
00360     <span class="comment">// set addresses</span>
00361     glcdSetYAddress(yLine);
00362     glcdSetXAddress(x);
00363 }
00364 
<a name="l00365"></a><a class="code" href="ks0108_8h.html#a22">00365</a> <span class="keywordtype">void</span> <a class="code" href="ks0108_8c.html#a16">glcdGotoChar</a>(u08 line, u08 col)
00366 {
00367     <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(col*6, line);
00368 }
00369 
<a name="l00370"></a><a class="code" href="ks0108_8h.html#a25">00370</a> <span class="keywordtype">void</span> <a class="code" href="ks0108_8c.html#a17">glcdDelay</a>(u16 p)           <span class="comment">// 1-8us      ...2-13us     ...5-31us</span>
00371 {                               <span class="comment">// 10-60us    ...50-290us</span>
00372     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;             <span class="comment">// 100-580us  ...500-2,9ms</span>
00373     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> j;            <span class="comment">// 1000-5,8ms ...5000-29ms</span>
00374                                 <span class="comment">// 10000-56ms ...30000-170ms</span>
00375                                 <span class="comment">// 50000-295ms...60000-345ms</span>
00376 <span class="comment">//  for (i = 0; i &lt; p; i++) for (j = 0; j &lt; 10; j++) asm volatile ("nop");</span>
00377     <span class="keywordflow">for</span> (i = 0; i &lt; p; i++) <span class="keywordflow">for</span> (j = 0; j &lt; 10; j++);
00378 }
00379 
00380 
00381 <span class="comment">// Higher level functionality has been moved to the API-layer glcd.c/glcd.h</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Oct 29 03:41:07 2006 for Procyon AVRlib by&nbsp;
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address>
</body>
</html>