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<h1>spyglass.c</h1><a href="spyglass_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*! \file spyglass.c \brief Spyglass Control Panel UI Board Driver. */</span>
00002 <span class="comment">//*****************************************************************************</span>
00003 <span class="comment">//</span>
00004 <span class="comment">// File Name    : 'spyglass.c'</span>
00005 <span class="comment">// Title        : Spyglass Control Panel UI Board Driver</span>
00006 <span class="comment">// Author       : Pascal Stang - Copyright (C) 2005</span>
00007 <span class="comment">// Created      : 7/20/2005</span>
00008 <span class="comment">// Revised      : 7/23/2005</span>
00009 <span class="comment">// Version      : 0.9</span>
00010 <span class="comment">// Target MCU   : Atmel AVR series</span>
00011 <span class="comment">// Editor Tabs  : 4</span>
00012 <span class="comment">//</span>
00013 <span class="comment">// This code is distributed under the GNU Public License</span>
00014 <span class="comment">//      which can be found at http://www.gnu.org/licenses/gpl.txt</span>
00015 <span class="comment">//</span>
00016 <span class="comment">//*****************************************************************************</span>
00017 
00018 
00019 <span class="preprocessor">#include "<a class="code" href="global_8h.html">global.h</a>"</span>
00020 <span class="preprocessor">#include "<a class="code" href="rprintf_8h.html">rprintf.h</a>"</span>
00021 <span class="preprocessor">#include "<a class="code" href="timer_8h.html">timer.h</a>"</span>
00022 <span class="preprocessor">#include "<a class="code" href="i2c_8h.html">i2c.h</a>"</span>
00023 <span class="preprocessor">#include "<a class="code" href="spyglass_8h.html">spyglass.h</a>"</span>
00024 
00025 <span class="preprocessor">#include "<a class="code" href="lcd_8h.html">lcd.h</a>"</span>
00026 
00027 u08 PcfCtrlData;
00028 
<a name="l00029"></a><a class="code" href="group__spyglass.html#ga11">00029</a> u08 <a class="code" href="group__spyglass.html#ga11">pcf8574Write</a>(u08 nodeAddr, u08 data)
00030 {
00031     <span class="comment">// write data</span>
00032     <span class="keywordflow">return</span> <a class="code" href="i2c_8c.html#a24">i2cMasterSendNI</a>(PCF8574_I2C_BASE_ADDR+(nodeAddr&lt;&lt;1), 1, &amp;data);
00033 }
00034 
<a name="l00035"></a><a class="code" href="group__spyglass.html#ga12">00035</a> u08 <a class="code" href="group__spyglass.html#ga12">pcf8574Read</a>(u08 nodeAddr)
00036 {
00037     u08 data;
00038     <a class="code" href="i2c_8c.html#a25">i2cMasterReceiveNI</a>(PCF8574_I2C_BASE_ADDR+(nodeAddr&lt;&lt;1), 1, &amp;data);
00039     <span class="keywordflow">return</span> data;
00040 }
00041 
<a name="l00042"></a><a class="code" href="group__spyglass.html#ga0">00042</a> <span class="keywordtype">void</span> <a class="code" href="group__spyglass.html#ga0">spyglassInit</a>(<span class="keywordtype">void</span>)
00043 {
00044     <a class="code" href="i2c_8c.html#a10">i2cInit</a>();
00045     <a class="code" href="i2c_8c.html#a11">i2cSetBitrate</a>(100);
00046     PcfCtrlData = (SPYGLASS_LED0 | SPYGLASS_LED1 | SPYGLASS_BEEPER);
00047     <a class="code" href="group__spyglass.html#ga2">spyglassSetLeds</a>(0);
00048     <a class="code" href="group__spyglass.html#ga3">spyglassSetBeeper</a>(0);
00049 }
00050 
<a name="l00051"></a><a class="code" href="group__spyglass.html#ga1">00051</a> u08 <a class="code" href="group__spyglass.html#ga1">spyglassGetPushbuttons</a>(<span class="keywordtype">void</span>)
00052 {
00053     <span class="keywordflow">return</span> ~<a class="code" href="group__spyglass.html#ga12">pcf8574Read</a>(PCF_NODE_BUTTONS);
00054 }
00055 
<a name="l00056"></a><a class="code" href="group__spyglass.html#ga2">00056</a> <span class="keywordtype">void</span> <a class="code" href="group__spyglass.html#ga2">spyglassSetLeds</a>(u08 leds)
00057 {
00058     PcfCtrlData = (PcfCtrlData|0x03) &amp; ~(leds&amp;0x03);
00059     <a class="code" href="group__spyglass.html#ga11">pcf8574Write</a>(PCF_NODE_CONTROL, PcfCtrlData);
00060 }
00061 
<a name="l00062"></a><a class="code" href="group__spyglass.html#ga3">00062</a> <span class="keywordtype">void</span> <a class="code" href="group__spyglass.html#ga3">spyglassSetBeeper</a>(u08 state)
00063 {
00064     <span class="keywordflow">if</span>(state)
00065         PcfCtrlData &amp;=~SPYGLASS_BEEPER;     <span class="comment">// beeper on</span>
00066     <span class="keywordflow">else</span>
00067         PcfCtrlData |= SPYGLASS_BEEPER;     <span class="comment">// beeper off</span>
00068     <a class="code" href="group__spyglass.html#ga11">pcf8574Write</a>(PCF_NODE_CONTROL, PcfCtrlData);
00069 }
00070 
<a name="l00071"></a><a class="code" href="group__spyglass.html#ga4">00071</a> u08 <a class="code" href="group__spyglass.html#ga4">spyglassSetLcdContrast</a>(u08 contrast)
00072 {
00073     u08 data[2];
00074     data[0] = 0;
00075     data[1] = contrast;
00076     <span class="keywordflow">return</span> <a class="code" href="i2c_8c.html#a24">i2cMasterSendNI</a>(MAX517_I2C_BASE_ADDR, 2, data);
00077 }
00078 
<a name="l00079"></a><a class="code" href="group__spyglass.html#ga9">00079</a> <span class="keywordtype">void</span> <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(u08 rs, u08 data)
00080 {
00081     <span class="comment">// prepare LCD control lines</span>
00082     PcfCtrlData &amp;= ~(SPYGLASS_LCD_RW | SPYGLASS_LCD_RS | SPYGLASS_LCD_E);
00083     <span class="keywordflow">if</span>(rs)
00084         PcfCtrlData |= SPYGLASS_LCD_RS;
00085     <span class="comment">// set LCD control lines</span>
00086     <a class="code" href="group__spyglass.html#ga11">pcf8574Write</a>(PCF_NODE_CONTROL, PcfCtrlData);
00087     <span class="comment">// set data lines</span>
00088     <a class="code" href="group__spyglass.html#ga11">pcf8574Write</a>(PCF_NODE_LCD_DATA, data);
00089     <span class="comment">// clock E line</span>
00090     <a class="code" href="group__spyglass.html#ga11">pcf8574Write</a>(PCF_NODE_CONTROL, PcfCtrlData|SPYGLASS_LCD_E);
00091     <a class="code" href="group__spyglass.html#ga11">pcf8574Write</a>(PCF_NODE_CONTROL, PcfCtrlData);
00092 }
00093 
<a name="l00094"></a><a class="code" href="group__spyglass.html#ga10">00094</a> <span class="keywordtype">void</span> <a class="code" href="group__spyglass.html#ga10">spyglassLcdWriteChar</a>(u08 c)
00095 {
00096     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(1,c);
00097 }
00098 
<a name="l00099"></a><a class="code" href="group__spyglass.html#ga5">00099</a> <span class="keywordtype">void</span> <a class="code" href="group__spyglass.html#ga5">spyglassLcdInit</a>(<span class="keywordtype">void</span>)
00100 {
00101     <span class="comment">// LCD function set</span>
00102     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(0,LCD_FUNCTION_DEFAULT);
00103     <span class="comment">// clear LCD</span>
00104     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(0,1&lt;&lt;LCD_CLR);
00105     delay(60000);   <span class="comment">// wait 60ms</span>
00106     <span class="comment">// set entry mode</span>
00107     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(0,1&lt;&lt;LCD_ENTRY_MODE | 1&lt;&lt;LCD_ENTRY_INC);
00108     <span class="comment">// set display to on</span>
00109     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(0,1&lt;&lt;LCD_ON_CTRL | 1&lt;&lt;LCD_ON_DISPLAY );
00110     <span class="comment">// move cursor to home</span>
00111     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(0,1&lt;&lt;LCD_HOME);
00112     <span class="comment">// set data address to 0</span>
00113     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(0,1&lt;&lt;LCD_DDRAM | 0x00);
00114 
00115     <span class="comment">// set contrast</span>
00116     <a class="code" href="group__spyglass.html#ga4">spyglassSetLcdContrast</a>(20);
00117 }
00118 
<a name="l00119"></a><a class="code" href="group__spyglass.html#ga6">00119</a> <span class="keywordtype">void</span> <a class="code" href="group__spyglass.html#ga6">spyglassLcdHome</a>(<span class="keywordtype">void</span>)
00120 {
00121     <span class="comment">// move cursor to home</span>
00122     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(0,1&lt;&lt;LCD_HOME);
00123 }
00124 
<a name="l00125"></a><a class="code" href="group__spyglass.html#ga7">00125</a> <span class="keywordtype">void</span> <a class="code" href="group__spyglass.html#ga7">spyglassLcdClear</a>(<span class="keywordtype">void</span>)
00126 {
00127     <span class="comment">// clear LCD</span>
00128     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(0,1&lt;&lt;LCD_CLR);
00129 }
00130 
<a name="l00131"></a><a class="code" href="group__spyglass.html#ga8">00131</a> <span class="keywordtype">void</span> <a class="code" href="group__spyglass.html#ga8">spyglassLcdGotoXY</a>(u08 x, u08 y)
00132 {
00133     <span class="keyword">register</span> u08 DDRAMAddr;
00134 
00135     <span class="comment">// remap lines into proper order</span>
00136     <span class="keywordflow">switch</span>(y)
00137     {
00138     <span class="keywordflow">case</span> 0: DDRAMAddr = LCD_LINE0_DDRAMADDR+x; <span class="keywordflow">break</span>;
00139     <span class="keywordflow">case</span> 1: DDRAMAddr = LCD_LINE1_DDRAMADDR+x; <span class="keywordflow">break</span>;
00140     <span class="keywordflow">case</span> 2: DDRAMAddr = LCD_LINE2_DDRAMADDR+x; <span class="keywordflow">break</span>;
00141     <span class="keywordflow">case</span> 3: DDRAMAddr = LCD_LINE3_DDRAMADDR+x; <span class="keywordflow">break</span>;
00142     <span class="keywordflow">default</span>: DDRAMAddr = LCD_LINE0_DDRAMADDR+x;
00143     }
00144 
00145     <span class="comment">// set data address</span>
00146     <a class="code" href="group__spyglass.html#ga9">spyglassLcdWrite</a>(0,1&lt;&lt;LCD_DDRAM | DDRAMAddr);
00147 }
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Oct 29 03:41:07 2006 for Procyon AVRlib by&nbsp;
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