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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Procyon AVRlib: glcd.c Source File</title><link href="dox.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.2 --><div class="qindex"><a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a> | <a class="qindex" href="pages.html">Related Pages</a></div><h1>glcd.c</h1><a href="glcd_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*! \file glcd.c \brief Graphic LCD API functions. */</span>00002 <span class="comment">//*****************************************************************************</span>00003 <span class="comment">//</span>00004 <span class="comment">// File Name : 'glcd.c'</span>00005 <span class="comment">// Title : Graphic LCD API functions</span>00006 <span class="comment">// Author : Pascal Stang - Copyright (C) 2002</span>00007 <span class="comment">// Date : 5/30/2002</span>00008 <span class="comment">// Revised : 5/30/2002</span>00009 <span class="comment">// Version : 0.5</span>00010 <span class="comment">// Target MCU : Atmel AVR</span>00011 <span class="comment">// Editor Tabs : 4</span>00012 <span class="comment">//</span>00013 <span class="comment">// NOTE: This code is currently below version 1.0, and therefore is considered</span>00014 <span class="comment">// to be lacking in some functionality or documentation, or may not be fully</span>00015 <span class="comment">// tested. Nonetheless, you can expect most functions to work.</span>00016 <span class="comment">//</span>00017 <span class="comment">// This code is distributed under the GNU Public License</span>00018 <span class="comment">// which can be found at http://www.gnu.org/licenses/gpl.txt</span>00019 <span class="comment">//</span>00020 <span class="comment">//*****************************************************************************</span>00021 00022 <span class="preprocessor">#ifndef WIN32</span>00023 <span class="preprocessor"></span><span class="comment">// AVR specific includes</span>00024 <span class="preprocessor"> #include <avr/io.h></span>00025 <span class="preprocessor"> #include <avr/pgmspace.h></span>00026 <span class="preprocessor">#endif</span>00027 <span class="preprocessor"></span>00028 <span class="preprocessor">#include "<a class="code" href="glcd_8h.html">glcd.h</a>"</span>00029 00030 <span class="comment">// include hardware support</span>00031 <span class="preprocessor">#include "<a class="code" href="ks0108_8h.html">ks0108.h</a>"</span>00032 <span class="comment">// include fonts</span>00033 <span class="preprocessor">#include "<a class="code" href="font5x7_8h.html">font5x7.h</a>"</span>00034 <span class="preprocessor">#include "<a class="code" href="fontgr_8h.html">fontgr.h</a>"</span>00035 00036 <span class="comment">// graphic routines</span>00037 00038 <span class="comment">// set dot</span><a name="l00039"></a><a class="code" href="glcd_8h.html#a10">00039</a> <span class="keywordtype">void</span> <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(u08 x, u08 y)00040 {00041 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> temp;00042 00043 <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(x, y/8);00044 temp = glcdDataRead(); <span class="comment">// dummy read</span>00045 temp = glcdDataRead(); <span class="comment">// read back current value</span>00046 <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(x, y/8);00047 glcdDataWrite(temp | (1 << (y % 8)));00048 00049 <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(0);00050 }00051 00052 <span class="comment">// clear dot</span><a name="l00053"></a><a class="code" href="glcd_8h.html#a11">00053</a> <span class="keywordtype">void</span> <a class="code" href="glcd_8c.html#a1">glcdClearDot</a>(u08 x, u08 y)00054 {00055 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> temp;00056 00057 <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(x, y/8);00058 temp = glcdDataRead(); <span class="comment">// dummy read</span>00059 temp = glcdDataRead(); <span class="comment">// read back current value</span>00060 <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(x, y/8);00061 glcdDataWrite(temp & ~(1 << (y % 8)));00062 00063 <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(0);00064 }00065 00066 <span class="comment">// draw line</span><a name="l00067"></a><a class="code" href="glcd_8h.html#a12">00067</a> <span class="keywordtype">void</span> <a class="code" href="glcd_8c.html#a2">glcdLine</a>(u08 x1, u08 y1, u08 x2, u08 y2)00068 {00069 };00070 00071 <span class="comment">// draw rectangle</span><a name="l00072"></a><a class="code" href="glcd_8h.html#a13">00072</a> <span class="keywordtype">void</span> <a class="code" href="glcd_8c.html#a3">glcdRectangle</a>(u08 x, u08 y, u08 a, u08 b)00073 {00074 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> j;00075 00076 <span class="keywordflow">for</span> (j = 0; j < a; j++) {00077 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(x, y + j);00078 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(x + b - 1, y + j);00079 }00080 <span class="keywordflow">for</span> (j = 0; j < b; j++) {00081 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(x + j, y);00082 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(x + j, y + a - 1);00083 }00084 }00085 00086 <span class="comment">// draw circle</span><a name="l00087"></a><a class="code" href="glcd_8h.html#a14">00087</a> <span class="keywordtype">void</span> <a class="code" href="glcd_8c.html#a4">glcdCircle</a>(u08 xcenter, u08 ycenter, u08 radius)00088 {00089 <span class="keywordtype">int</span> tswitch, y, x = 0;00090 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> d;00091 00092 d = ycenter - xcenter;00093 y = radius;00094 tswitch = 3 - 2 * radius;00095 <span class="keywordflow">while</span> (x <= y) {00096 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(xcenter + x, ycenter + y); <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(xcenter + x, ycenter - y);00097 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(xcenter - x, ycenter + y); <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(xcenter - x, ycenter - y);00098 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(ycenter + y - d, ycenter + x); <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(ycenter + y - d, ycenter - x);00099 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(ycenter - y - d, ycenter + x); <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(ycenter - y - d, ycenter - x);00100 00101 <span class="keywordflow">if</span> (tswitch < 0) tswitch += (4 * x + 6);00102 <span class="keywordflow">else</span> {00103 tswitch += (4 * (x - y) + 10);00104 y--;00105 }00106 x++;00107 }00108 }00109 00110 <span class="comment">// text routines</span>00111 00112 <span class="comment">// write a character at the current position</span><a name="l00113"></a><a class="code" href="glcd_8h.html#a15">00113</a> <span class="keywordtype">void</span> <a class="code" href="glcd_8c.html#a5">glcdWriteChar</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> c)00114 {00115 u08 i = 0;00116 00117 <span class="keywordflow">for</span>(i=0; i<5; i++)00118 {00119 glcdDataWrite(pgm_read_byte(&Font5x7[((c - 0x20) * 5) + i]));00120 }00121 00122 <span class="comment">// write a spacer line</span>00123 glcdDataWrite(0x00);00124 <span class="comment">// unless we're at the end of the display</span>00125 <span class="comment">//if(xx == 128)</span>00126 <span class="comment">// xx = 0;</span>00127 <span class="comment">//else </span>00128 <span class="comment">// glcdWriteData(0x00);</span>00129 00130 <span class="comment">//cbi(GLCD_Control, GLCD_CS1);</span>00131 <span class="comment">//cbi(GLCD_Control, GLCD_CS2);</span>00132 <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(0);00133 }00134 <a name="l00135"></a><a class="code" href="glcd_8h.html#a16">00135</a> <span class="keywordtype">void</span> <a class="code" href="glcd_8c.html#a6">glcdWriteCharGr</a>(u08 grCharIdx)00136 {00137 u08 idx;00138 u08 grLength;00139 u08 grStartIdx = 0;00140 00141 <span class="comment">// get starting index of graphic bitmap</span>00142 <span class="keywordflow">for</span>(idx=0; idx<grCharIdx; idx++)00143 {00144 <span class="comment">// add this graphic's length to the startIdx</span>00145 <span class="comment">// to get the startIdx of the next one</span>00146 grStartIdx += pgm_read_byte(FontGr+grStartIdx);00147 }00148 grLength = pgm_read_byte(FontGr+grStartIdx);00149 00150 <span class="comment">// write the lines of the desired graphic to the display</span>00151 <span class="keywordflow">for</span>(idx=0; idx<grLength; idx++)00152 {00153 <span class="comment">// write the line</span>00154 glcdDataWrite(pgm_read_byte(FontGr+(grStartIdx+1)+idx));00155 }00156 }00157 00158 <span class="keywordtype">void</span> glcdPutStr(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *data)00159 {00160 <span class="keywordflow">while</span> (*data) {00161 <a class="code" href="glcd_8c.html#a5">glcdWriteChar</a>(*data);00162 data++;00163 }00164 }</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Oct 29 03:41:06 2006 for Procyon AVRlib by <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>⌨️ 快捷键说明
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