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| 3 | <title>Procyon AVRlib: glcd.c Source File</title> |
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| 8 | <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> |
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| 9 | 00002 <span class="comment">//*****************************************************************************</span> |
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| 10 | 00003 <span class="comment">//</span> |
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| 11 | 00004 <span class="comment">// File Name : 'glcd.c'</span> |
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| 12 | 00005 <span class="comment">// Title : Graphic LCD API functions</span> |
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| 13 | 00006 <span class="comment">// Author : Pascal Stang - Copyright (C) 2002</span> |
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| 14 | 00007 <span class="comment">// Date : 5/30/2002</span> |
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| 15 | 00008 <span class="comment">// Revised : 5/30/2002</span> |
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| 16 | 00009 <span class="comment">// Version : 0.5</span> |
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| 17 | 00010 <span class="comment">// Target MCU : Atmel AVR</span> |
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| 18 | 00011 <span class="comment">// Editor Tabs : 4</span> |
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| 19 | 00012 <span class="comment">//</span> |
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| 20 | 00013 <span class="comment">// NOTE: This code is currently below version 1.0, and therefore is considered</span> |
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| 21 | 00014 <span class="comment">// to be lacking in some functionality or documentation, or may not be fully</span> |
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| 22 | 00015 <span class="comment">// tested. Nonetheless, you can expect most functions to work.</span> |
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| 23 | 00016 <span class="comment">//</span> |
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| 24 | 00017 <span class="comment">// This code is distributed under the GNU Public License</span> |
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| 25 | 00018 <span class="comment">// which can be found at http://www.gnu.org/licenses/gpl.txt</span> |
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| 26 | 00019 <span class="comment">//</span> |
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| 27 | 00020 <span class="comment">//*****************************************************************************</span> |
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| 28 | 00021 |
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| 29 | 00022 <span class="preprocessor">#ifndef WIN32</span> |
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| 30 | 00023 <span class="preprocessor"></span><span class="comment">// AVR specific includes</span> |
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| 31 | 00024 <span class="preprocessor"> #include <avr/io.h></span> |
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| 32 | 00025 <span class="preprocessor"> #include <avr/pgmspace.h></span> |
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| 33 | 00026 <span class="preprocessor">#endif</span> |
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| 34 | 00027 <span class="preprocessor"></span> |
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| 35 | 00028 <span class="preprocessor">#include "<a class="code" href="glcd_8h.html">glcd.h</a>"</span> |
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| 36 | 00029 |
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| 37 | 00030 <span class="comment">// include hardware support</span> |
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| 38 | 00031 <span class="preprocessor">#include "<a class="code" href="ks0108_8h.html">ks0108.h</a>"</span> |
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| 39 | 00032 <span class="comment">// include fonts</span> |
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| 40 | 00033 <span class="preprocessor">#include "<a class="code" href="font5x7_8h.html">font5x7.h</a>"</span> |
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| 41 | 00034 <span class="preprocessor">#include "<a class="code" href="fontgr_8h.html">fontgr.h</a>"</span> |
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| 42 | 00035 |
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| 43 | 00036 <span class="comment">// graphic routines</span> |
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| 44 | 00037 |
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| 45 | 00038 <span class="comment">// set dot</span> |
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| 46 | <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) |
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| 47 | 00040 { |
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| 48 | 00041 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> temp; |
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| 49 | 00042 |
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| 50 | 00043 <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(x, y/8); |
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| 51 | 00044 temp = glcdDataRead(); <span class="comment">// dummy read</span> |
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| 52 | 00045 temp = glcdDataRead(); <span class="comment">// read back current value</span> |
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| 53 | 00046 <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(x, y/8); |
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| 54 | 00047 glcdDataWrite(temp | (1 << (y % 8))); |
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| 55 | 00048 |
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| 56 | 00049 <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(0); |
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| 57 | 00050 } |
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| 58 | 00051 |
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| 59 | 00052 <span class="comment">// clear dot</span> |
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| 60 | <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) |
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| 61 | 00054 { |
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| 62 | 00055 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> temp; |
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| 63 | 00056 |
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| 64 | 00057 <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(x, y/8); |
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| 65 | 00058 temp = glcdDataRead(); <span class="comment">// dummy read</span> |
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| 66 | 00059 temp = glcdDataRead(); <span class="comment">// read back current value</span> |
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| 67 | 00060 <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(x, y/8); |
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| 68 | 00061 glcdDataWrite(temp & ~(1 << (y % 8))); |
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| 69 | 00062 |
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| 70 | 00063 <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(0); |
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| 71 | 00064 } |
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| 72 | 00065 |
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| 73 | 00066 <span class="comment">// draw line</span> |
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| 74 | <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) |
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| 75 | 00068 { |
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| 76 | 00069 }; |
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| 77 | 00070 |
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| 78 | 00071 <span class="comment">// draw rectangle</span> |
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| 79 | <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) |
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| 80 | 00073 { |
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| 81 | 00074 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> j; |
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| 82 | 00075 |
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| 83 | 00076 <span class="keywordflow">for</span> (j = 0; j < a; j++) { |
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| 84 | 00077 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(x, y + j); |
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| 85 | 00078 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(x + b - 1, y + j); |
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| 86 | 00079 } |
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| 87 | 00080 <span class="keywordflow">for</span> (j = 0; j < b; j++) { |
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| 88 | 00081 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(x + j, y); |
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| 89 | 00082 <a class="code" href="glcd_8c.html#a0">glcdSetDot</a>(x + j, y + a - 1); |
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| 90 | 00083 } |
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| 91 | 00084 } |
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| 92 | 00085 |
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| 93 | 00086 <span class="comment">// draw circle</span> |
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| 94 | <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) |
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| 95 | 00088 { |
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| 96 | 00089 <span class="keywordtype">int</span> tswitch, y, x = 0; |
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| 97 | 00090 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> d; |
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| 98 | 00091 |
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| 99 | 00092 d = ycenter - xcenter; |
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| 100 | 00093 y = radius; |
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| 101 | 00094 tswitch = 3 - 2 * radius; |
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| 102 | 00095 <span class="keywordflow">while</span> (x <= y) { |
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| 103 | 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); |
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| 104 | 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); |
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| 105 | 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); |
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| 106 | 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); |
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| 107 | 00100 |
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| 108 | 00101 <span class="keywordflow">if</span> (tswitch < 0) tswitch += (4 * x + 6); |
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| 109 | 00102 <span class="keywordflow">else</span> { |
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| 110 | 00103 tswitch += (4 * (x - y) + 10); |
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| 111 | 00104 y--; |
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| 112 | 00105 } |
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| 113 | 00106 x++; |
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| 114 | 00107 } |
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| 115 | 00108 } |
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| 116 | 00109 |
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| 117 | 00110 <span class="comment">// text routines</span> |
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| 118 | 00111 |
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| 119 | 00112 <span class="comment">// write a character at the current position</span> |
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| 120 | <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) |
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| 121 | 00114 { |
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| 122 | 00115 u08 i = 0; |
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| 123 | 00116 |
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| 124 | 00117 <span class="keywordflow">for</span>(i=0; i<5; i++) |
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| 125 | 00118 { |
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| 126 | 00119 glcdDataWrite(pgm_read_byte(&Font5x7[((c - 0x20) * 5) + i])); |
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| 127 | 00120 } |
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| 128 | 00121 |
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| 129 | 00122 <span class="comment">// write a spacer line</span> |
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| 130 | 00123 glcdDataWrite(0x00); |
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| 131 | 00124 <span class="comment">// unless we're at the end of the display</span> |
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| 132 | 00125 <span class="comment">//if(xx == 128)</span> |
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| 133 | 00126 <span class="comment">// xx = 0;</span> |
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| 134 | 00127 <span class="comment">//else </span> |
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| 135 | 00128 <span class="comment">// glcdWriteData(0x00);</span> |
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| 136 | 00129 |
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| 137 | 00130 <span class="comment">//cbi(GLCD_Control, GLCD_CS1);</span> |
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| 138 | 00131 <span class="comment">//cbi(GLCD_Control, GLCD_CS2);</span> |
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| 139 | 00132 <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(0); |
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| 140 | 00133 } |
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| 141 | 00134 |
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| 142 | <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) |
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| 143 | 00136 { |
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| 144 | 00137 u08 idx; |
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| 145 | 00138 u08 grLength; |
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| 146 | 00139 u08 grStartIdx = 0; |
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| 147 | 00140 |
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| 148 | 00141 <span class="comment">// get starting index of graphic bitmap</span> |
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| 149 | 00142 <span class="keywordflow">for</span>(idx=0; idx<grCharIdx; idx++) |
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| 150 | 00143 { |
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| 151 | 00144 <span class="comment">// add this graphic's length to the startIdx</span> |
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| 152 | 00145 <span class="comment">// to get the startIdx of the next one</span> |
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| 153 | 00146 grStartIdx += pgm_read_byte(FontGr+grStartIdx); |
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| 154 | 00147 } |
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| 155 | 00148 grLength = pgm_read_byte(FontGr+grStartIdx); |
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| 156 | 00149 |
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| 157 | 00150 <span class="comment">// write the lines of the desired graphic to the display</span> |
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| 158 | 00151 <span class="keywordflow">for</span>(idx=0; idx<grLength; idx++) |
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| 159 | 00152 { |
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| 160 | 00153 <span class="comment">// write the line</span> |
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| 161 | 00154 glcdDataWrite(pgm_read_byte(FontGr+(grStartIdx+1)+idx)); |
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| 162 | 00155 } |
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| 163 | 00156 } |
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| 164 | 00157 |
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| 165 | 00158 <span class="keywordtype">void</span> glcdPutStr(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *data) |
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| 166 | 00159 { |
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| 167 | 00160 <span class="keywordflow">while</span> (*data) { |
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| 168 | 00161 <a class="code" href="glcd_8c.html#a5">glcdWriteChar</a>(*data); |
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| 169 | 00162 data++; |
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| 170 | 00163 } |
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| 171 | 00164 } |
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| 172 | </pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Oct 29 03:41:06 2006 for Procyon AVRlib by |
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| 173 | <a href="http://www.doxygen.org/index.html"> |
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| 174 | <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address> |
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| 175 | </body> |
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| 176 | </html> |
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