lcd__driver_8c-source.html

SMS傳送Sourcode,compiler with C,AT command

00208         nibble = seg & 0x000F;
00209         seg >>= 4;
00210         <span class="keywordflow">if</span> (digit &amp; 0x01)
00211             nibble &lt;&lt;= 4;
00212         *ptr = (*ptr &amp; <a class="code" href="AVRGSM__zip_8c.html#a1">mask</a>) | nibble;
00213         ptr += 5;
00214     }
00215 }
00216 
00217 
00218 
00219 <span class="comment">/*****************************************************************************</span>
00220 <span class="comment">*</span>
00221 <span class="comment">*   Function name : LCD_AllSegments(unsigned char input)</span>
00222 <span class="comment">*</span>
00223 <span class="comment">*   Returns :       None</span>
00224 <span class="comment">*</span>
00225 <span class="comment">*   Parameters :    show -  [TRUE;FALSE]</span>
00226 <span class="comment">*</span>
00227 <span class="comment">*   Purpose :       shows or hide all all LCD segments on the LCD</span>
00228 <span class="comment">*</span>
00229 <span class="comment">*****************************************************************************/</span>
<a name="l00230"></a><a class="code" href="LCD__driver_8h.html#a20">00230</a> <span class="keywordtype">void</span> <a class="code" href="LCD__driver_8h.html#a20">LCD_AllSegments</a>(<span class="keywordtype">char</span> show)
00231 {
00232     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> i;
00233 
00234     <span class="keywordflow">if</span> (show)
00235         show = 0xFF;
00236 
00237     <span class="comment">// Set/clear all bits in all LCD registers</span>
00238     <span class="keywordflow">for</span> (i=0; i &lt; <a class="code" href="LCD__driver_8h.html#a3">LCD_REGISTER_COUNT</a>; i++)
00239         *(<a class="code" href="LCD__driver_8c.html#a3">LCD_Data</a> + i) = show;
00240 }
00241 
00242 
00243 <span class="comment">/*****************************************************************************</span>
00244 <span class="comment">*</span>
00245 <span class="comment">*   LCD Interrupt Routine</span>
00246 <span class="comment">*</span>
00247 <span class="comment">*   Returns :       None</span>
00248 <span class="comment">*</span>
00249 <span class="comment">*   Parameters :    None</span>
00250 <span class="comment">*</span>
00251 <span class="comment">*   Purpose: Latch the LCD_displayData and Set LCD_status.updateComplete</span>
00252 <span class="comment">*</span>
00253 <span class="comment">*****************************************************************************/</span>
00254 <span class="preprocessor">#pragma vector = LCD_SOF_vect</span>
<a name="l00255"></a><a class="code" href="LCD__driver_8c.html#a14">00255</a> <span class="preprocessor"></span><a class="code" href="splint_8h.html#a2">__interrupt</a> <span class="keywordtype">void</span> <a class="code" href="LCD__driver_8c.html#a14">LCD_SOF_interrupt</a>(<span class="keywordtype">void</span>)
00256 {
00257     <span class="keyword">static</span> <span class="keywordtype">char</span> LCD_timer = <a class="code" href="LCD__driver_8h.html#a1">LCD_TIMER_SEED</a>;
00258     <span class="keywordtype">char</span> c;
00259     <span class="keywordtype">char</span> c_flash;
00260     <span class="keywordtype">char</span> flash;
00261 
00262     <span class="keywordtype">char</span> EOL;
00263     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> i;
00264 
00265 
00266     <span class="keyword">static</span> <span class="keywordtype">char</span> timeout_count;
00267 
00268 
00269 <span class="comment">/**************** Button timeout for the button.c, START ****************/</span>
00270     <span class="keywordflow">if</span>(!<a class="code" href="button_8c.html#a0">gButtonTimeout</a>)
00271     {
00272         timeout_count++;
00273 
00274         <span class="keywordflow">if</span>(timeout_count &gt; 3)
00275         {
00276             <a class="code" href="button_8c.html#a0">gButtonTimeout</a> = <a class="code" href="LCD__functions_8c.html#a1">TRUE</a>;
00277             timeout_count = 0;
00278         }
00279     }
00280 <span class="comment">/**************** Button timeout for the button.c, END ******************/</span>
00281 
00282 <span class="comment">/**************** Auto press joystick for the main.c, START *************/</span>
00283     <span class="comment">/*if(gAutoPressJoystick == AUTO)</span>
00284 <span class="comment">    {</span>
00285 <span class="comment">        auto_joystick_count++;</span>
00286 <span class="comment"></span>
00287 <span class="comment">        if(auto_joystick_count &gt; 16)</span>
00288 <span class="comment">        {</span>
00289 <span class="comment">            gAutoPressJoystick = TRUE;</span>
00290 <span class="comment">            auto_joystick_count = 15;</span>
00291 <span class="comment">        }</span>
00292 <span class="comment">    }</span>
00293 <span class="comment">    else</span>
00294 <span class="comment">        auto_joystick_count = 0;</span>
00295 <span class="comment">      */</span>
00296 <span class="comment">/**************** Auto press joystick for the main.c, END ***************/</span>
00297 
00298     LCD_timer--;                    <span class="comment">// Decreased every LCD frame</span>
00299 
00300     <span class="keywordflow">if</span> (<a class="code" href="LCD__driver_8c.html#a6">gScrollMode</a>)
00301     {
00302         <span class="comment">// If we are in scroll mode, and the timer has expired,</span>
00303         <span class="comment">// we will update the LCD</span>
00304         <span class="keywordflow">if</span> (LCD_timer == 0)
00305         {
00306             <span class="keywordflow">if</span> (<a class="code" href="LCD__driver_8c.html#a7">gLCD_Start_Scroll_Timer</a> == 0)
00307             {
00308                 <a class="code" href="LCD__driver_8c.html#a2">gLCD_Update_Required</a> = <a class="code" href="LCD__functions_8c.html#a1">TRUE</a>;
00309             }
00310             <span class="keywordflow">else</span>
00311                 <a class="code" href="LCD__driver_8c.html#a7">gLCD_Start_Scroll_Timer</a>--;
00312         }
00313     }
00314     <span class="keywordflow">else</span>
00315     {   <span class="comment">// if not scrolling,</span>
00316         <span class="comment">// disble LCD start of frame interrupt</span>
00317 <span class="comment">//        cbi(LCDCRA, LCDIE);   //DEBUG</span>
00318         <a class="code" href="LCD__driver_8c.html#a5">gScroll</a> = 0;
00319     }
00320 
00321 
00322     EOL = <a class="code" href="LCD__functions_8c.html#a0">FALSE</a>;
00323     <span class="keywordflow">if</span> (<a class="code" href="LCD__driver_8c.html#a2">gLCD_Update_Required</a> == <a class="code" href="LCD__functions_8c.html#a1">TRUE</a>)
00324     {
00325         <span class="comment">// Duty cycle of flashing characters</span>
00326         <span class="keywordflow">if</span> (gFlashTimer &lt; (LCD_FLASH_SEED &gt;&gt; 1))
00327             flash = 0;
00328         <span class="keywordflow">else</span>
00329             flash = 1;
00330 
00331         <span class="comment">// Repeat for the six LCD characters</span>
00332         <span class="keywordflow">for</span> (i = 0; i &lt; 6; i++)
00333         {
00334             <span class="keywordflow">if</span> ((<a class="code" href="LCD__driver_8c.html#a5">gScroll</a>+i) &gt;= 0 &amp;&amp; (!EOL))
00335             {
00336                 <span class="comment">// We have some visible characters</span>
00337                 c = <a class="code" href="LCD__driver_8c.html#a4">gTextBuffer</a>[i + <a class="code" href="LCD__driver_8c.html#a5">gScroll</a>];
00338                 c_flash = c &amp; 0x80 ? 1 : 0;
00339                 c = c &amp; 0x7F;
00340 
00341                 <span class="keywordflow">if</span> (c == <span class="charliteral">'\0'</span>)
00342                     EOL = i+1;      <span class="comment">// End of character data</span>
00343             }
00344             <span class="keywordflow">else</span>
00345                 c = <span class="charliteral">' '</span>;
00346 
00347             <span class="comment">// Check if this character is flashing</span>
00348 
00349             <span class="keywordflow">if</span> (c_flash &amp;&amp; flash)
00350                 <a class="code" href="LCD__driver_8h.html#a19">LCD_WriteDigit</a>(<span class="charliteral">' '</span>, i);
00351             <span class="keywordflow">else</span>
00352                 <a class="code" href="LCD__driver_8h.html#a19">LCD_WriteDigit</a>(c, i);
00353         }
00354 
00355         <span class="comment">// Copy the segment buffer to the real segments</span>
00356         <span class="keywordflow">for</span> (i = 0; i &lt; <a class="code" href="LCD__driver_8h.html#a3">LCD_REGISTER_COUNT</a>; i++)
00357             *(<a class="code" href="LCD__driver_8h.html#a9">pLCDREG</a> + i) = *(<a class="code" href="LCD__driver_8c.html#a3">LCD_Data</a>+i);
00358 
00359         <span class="comment">// Handle colon</span>
00360         <span class="keywordflow">if</span> (<a class="code" href="LCD__driver_8c.html#a9">gColon</a>)
00361             *(<a class="code" href="LCD__driver_8h.html#a9">pLCDREG</a> + 8) = 0x01;
00362         <span class="keywordflow">else</span>
00363             *(<a class="code" href="LCD__driver_8h.html#a9">pLCDREG</a> + 8) = 0x00;
00364 
00365         <span class="comment">// If the text scrolled off the display,</span>
00366         <span class="comment">// we have to start over again.</span>
00367         <span class="keywordflow">if</span> (EOL == 1)
00368             <a class="code" href="LCD__driver_8c.html#a5">gScroll</a> = -6;
00369         <span class="keywordflow">else</span>
00370             <a class="code" href="LCD__driver_8c.html#a5">gScroll</a>++;
00371 
00372         <span class="comment">// No need to update anymore</span>
00373         <a class="code" href="LCD__driver_8c.html#a2">gLCD_Update_Required</a> = <a class="code" href="LCD__functions_8c.html#a0">FALSE</a>;
00374     }
00375 
00376 
00377     <span class="comment">// LCD_timer is used when scrolling text</span>
00378     <span class="keywordflow">if</span> (LCD_timer == 0)
00379     {
00380 <span class="comment">/*        if ((gScroll &lt;= 0) || EOL)</span>
00381 <span class="comment">            LCD_timer = LCD_TIMER_SEED/2;</span>
00382 <span class="comment">        else*/</span>
00383             LCD_timer = <a class="code" href="LCD__driver_8h.html#a1">LCD_TIMER_SEED</a>;
00384     }
00385 
00386     <span class="comment">// gFlashTimer is used when flashing characters</span>
00387     <span class="keywordflow">if</span> (<a class="code" href="LCD__driver_8c.html#a8">gFlashTimer</a> == <a class="code" href="LCD__driver_8h.html#a2">LCD_FLASH_SEED</a>)
00388         <a class="code" href="LCD__driver_8c.html#a8">gFlashTimer</a>= 0;
00389     <span class="keywordflow">else</span>
00390         <a class="code" href="LCD__driver_8c.html#a8">gFlashTimer</a>++;
00391 
00392 }
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Tue Nov 1 16:21:39 2005 for AVR323 Interfacing GSM modems by
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