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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<<1), 1, &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<<1), 1, &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) & ~(leds&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 &=~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 &= ~(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<<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<<LCD_ENTRY_MODE | 1<<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<<LCD_ON_CTRL | 1<<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<<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<<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<<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<<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<<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
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