172 lines
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172 lines
18 KiB
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<h1>include/lc7981.h</h1><a href="lc7981_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
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<a name="l00002"></a>00002 <span class="comment"> * lc7981.h</span>
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<a name="l00003"></a>00003 <span class="comment"> *</span>
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<a name="l00004"></a>00004 <span class="comment"> * Created on: 01.05.2009</span>
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<a name="l00005"></a>00005 <span class="comment"> * Author: sebastian</span>
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<a name="l00006"></a>00006 <span class="comment"> *</span>
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<a name="l00007"></a>00007 <span class="comment"> * This file is part of Sebastians AVR Library for lc7981.</span>
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<a name="l00008"></a>00008 <span class="comment"> *</span>
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<a name="l00009"></a>00009 <span class="comment"> * Sebastians AVR Library for lc789 is free software: you can redistribute it and/or modify</span>
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<a name="l00010"></a>00010 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
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<a name="l00011"></a>00011 <span class="comment"> * the Free Software Foundation, either version 3 of the License, or</span>
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<a name="l00012"></a>00012 <span class="comment"> * (at your option) any later version.</span>
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<a name="l00013"></a>00013 <span class="comment"> *</span>
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<a name="l00014"></a>00014 <span class="comment"> * Sebastians AVR Library is distributed in the hope that it will be useful,</span>
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<a name="l00015"></a>00015 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
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<a name="l00016"></a>00016 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
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<a name="l00017"></a>00017 <span class="comment"> * GNU General Public License for more details.</span>
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<a name="l00018"></a>00018 <span class="comment"> *</span>
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<a name="l00019"></a>00019 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
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<a name="l00020"></a>00020 <span class="comment"> * along with Sebastians AVR Library. If not, see <http://www.gnu.org/licenses/>.</span>
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<a name="l00021"></a>00021 <span class="comment"> *</span>
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<a name="l00022"></a>00022 <span class="comment"> *</span>
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<a name="l00023"></a>00023 <span class="comment"> * 'Do the thing you want to do and let your spirits guide you through.</span>
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<a name="l00024"></a>00024 <span class="comment"> * Live a life, worth being remembered.'</span>
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<a name="l00025"></a>00025 <span class="comment"> * -- Remembered - Firewind --</span>
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<a name="l00026"></a>00026 <span class="comment"> */</span>
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<a name="l00027"></a>00027
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<a name="l00028"></a>00028
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<a name="l00029"></a>00029
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<a name="l00030"></a>00030
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<a name="l00031"></a>00031 <span class="preprocessor">#ifndef LC7981_H_</span>
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<a name="l00032"></a><a class="code" href="lc7981_8h.html#ae6ff861bd55f4dc46f25f5f6abfca15f">00032</a> <span class="preprocessor"></span><span class="preprocessor">#define LC7981_H_ LC7981_H_ </span>
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<a name="l00033"></a>00033 <span class="preprocessor"></span>
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<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#include <avr/io.h></span>
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<a name="l00035"></a>00035 <span class="preprocessor">#include <util/delay.h></span>
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<a name="l00036"></a>00036 <span class="preprocessor">#include <avr/pgmspace.h></span>
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<a name="l00037"></a>00037
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<a name="l00038"></a><a class="code" href="lc7981_8h.html#a8e945df7ca614325cafa08258e82a63c">00038</a> <span class="preprocessor">#define LCD_CTRL PORTA </span>
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<a name="l00039"></a><a class="code" href="lc7981_8h.html#a4b6c8400da9a1ca3d4d83f3ef1f9c34a">00039</a> <span class="preprocessor">#define LCD_CRTL_DDR DDRA </span>
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<a name="l00040"></a><a class="code" href="lc7981_8h.html#a4781e073871c6f27f89b9463ad3a4ed1">00040</a> <span class="preprocessor">#define LCD_RS PA4 </span>
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<a name="l00041"></a><a class="code" href="lc7981_8h.html#a26089a10ddd59a0dc7283c19ccc02533">00041</a> <span class="preprocessor">#define LCD_RW PA2 </span>
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<a name="l00042"></a><a class="code" href="lc7981_8h.html#a1640ffbc0d8ec0f7edb04a2b93918072">00042</a> <span class="preprocessor">#define LCD_EN PA0 </span>
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<a name="l00043"></a>00043 <span class="preprocessor"></span>
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<a name="l00044"></a>00044 <span class="preprocessor"></span>
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<a name="l00045"></a>00045
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<a name="l00046"></a><a class="code" href="lc7981_8h.html#a25e9d818788f36ed74d7c4579f87f2a6">00046</a> <span class="preprocessor">#define LCD_DATA PORTD </span>
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<a name="l00047"></a><a class="code" href="lc7981_8h.html#abd18e47e71697a28fd0ca765cefc7411">00047</a> <span class="preprocessor">#define LCD_DATA_PIN PIND </span>
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<a name="l00048"></a><a class="code" href="lc7981_8h.html#a0c114e723aa4c162c415fb6d4d963dd7">00048</a> <span class="preprocessor">#define LCD_DATA_DDR DDRD </span>
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<a name="l00049"></a>00049 <span class="preprocessor"></span>
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<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="comment">// Macros for (un)setting the control pins</span>
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<a name="l00051"></a><a class="code" href="lc7981_8h.html#a795b48274d3f80bc744a707b67fd93e9">00051</a> <span class="preprocessor">#define lcd_rs_high() (LCD_CTRL |= (1 << LCD_RS)) </span>
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<a name="l00052"></a><a class="code" href="lc7981_8h.html#a6edb13d59460246fb4cc32ada1c9f4a8">00052</a> <span class="preprocessor">#define lcd_rs_low() (LCD_CTRL &= ~(1 << LCD_RS)) </span>
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<a name="l00053"></a>00053 <span class="preprocessor"></span>
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<a name="l00054"></a><a class="code" href="lc7981_8h.html#ad0ce3cd9b481370ad4de36eff08440c8">00054</a> <span class="preprocessor"></span><span class="preprocessor">#define lcd_rw_high() (LCD_CTRL |= (1 << LCD_RW)) </span>
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<a name="l00055"></a><a class="code" href="lc7981_8h.html#a7f5ebe0ca71b1298a7d3423850cc82b1">00055</a> <span class="preprocessor">#define lcd_rw_low() (LCD_CTRL &= ~(1 << LCD_RW)) </span>
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<a name="l00056"></a>00056 <span class="preprocessor"></span>
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<a name="l00057"></a><a class="code" href="lc7981_8h.html#ae14be306d3620577abc8613d40401b04">00057</a> <span class="preprocessor"></span><span class="preprocessor">#define lcd_en_high() (LCD_CTRL |= (1 << LCD_EN)) </span>
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<a name="l00058"></a><a class="code" href="lc7981_8h.html#ad8dcdb36a9410fd96b2c936b7c9355dd">00058</a> <span class="preprocessor">#define lcd_en_low() (LCD_CTRL &= ~(1 << LCD_EN)) </span>
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<a name="l00059"></a>00059 <span class="preprocessor"></span>
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<a name="l00060"></a>00060 <span class="preprocessor"></span>
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<a name="l00061"></a><a class="code" href="lc7981_8h.html#a90a69d37f5c80f3ded970acf2dacf4c0">00061</a> <span class="preprocessor">#define LCD_TEXT 0 </span>
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<a name="l00062"></a><a class="code" href="lc7981_8h.html#a720ef60606ac38ca3a5ab96a9c2b8168">00062</a> <span class="preprocessor">#define LCD_TEXT_LINES 10 </span>
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<a name="l00063"></a><a class="code" href="lc7981_8h.html#a82f0a630f3c41b5233f2ceb07c7dd736">00063</a> <span class="preprocessor">#define LCD_TEXT_COLUMNS 26 </span>
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<a name="l00064"></a>00064 <span class="preprocessor"></span>
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<a name="l00065"></a><a class="code" href="lc7981_8h.html#adfaedf8da8e73d39a98d709b519a3117">00065</a> <span class="preprocessor"></span><span class="preprocessor">#define LCD_GRAPHIC 1 </span>
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<a name="l00066"></a><a class="code" href="lc7981_8h.html#a51e83be6f6929f2a29d5467cd937dfc6">00066</a> <span class="preprocessor">#define LCD_GRAPHIC_WIDTH 160 </span>
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<a name="l00067"></a><a class="code" href="lc7981_8h.html#a70265c4f840ef78872243e91c923af2f">00067</a> <span class="preprocessor">#define LCD_GRAPHIC_HEIGHT 80 </span>
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<a name="l00068"></a><a class="code" href="lc7981_8h.html#aeb2d212a26da4a5a4d3231b2773023e5">00068</a> <span class="preprocessor">#define PIXEL_ON 1 </span>
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<a name="l00069"></a><a class="code" href="lc7981_8h.html#acda2f1b1cf6310700d0d91643c40e068">00069</a> <span class="preprocessor">#define PIXEL_OFF 0 </span>
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<a name="l00070"></a>00070 <span class="preprocessor"></span>
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<a name="l00071"></a>00071 <span class="preprocessor"></span><span class="keywordtype">void</span> <a class="code" href="lc7981_8c.html#a9b18aca098d68e55bd7dd4b83f4f36e9" title="lcd_init set the to default values.">lcd_init</a>(uint8_t mode);
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<a name="l00072"></a>00072 <span class="keywordtype">void</span> <a class="code" href="lc7981_8c.html#a35c08b1fa742e650f4873939707b893b" title="Clears the display by setting the whole memory to 0.">lcd_clear</a>();
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<a name="l00073"></a>00073
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<a name="l00074"></a>00074 <span class="keywordtype">void</span> <a class="code" href="lc7981_8c.html#a30251238a49999658455fdb0233757fb" title="Outputs text in at the current cursor position.">lcd_write_text</a>(<span class="keywordtype">char</span> *txt);
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<a name="l00075"></a>00075 <span class="keywordtype">void</span> <a class="code" href="lc7981_8c.html#adbf47a5efdf02367ded1ebf8f9edb5fe" title="Set the display cursor to a specific location.">lcd_gotoxy</a>(uint8_t x, uint8_t y);
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<a name="l00076"></a>00076
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<a name="l00077"></a>00077 <span class="keywordtype">void</span> <a class="code" href="lc7981_8c.html#a735111507ed83172f58d5af2953e31c6" title="set or unset a pixel at the specified location">lcd_plot_pixel</a>(uint8_t x, uint8_t y, uint8_t <span class="keyword">set</span>);
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<a name="l00078"></a>00078 <span class="keywordtype">void</span> <a class="code" href="lc7981_8c.html#a21d8458d8f15ac3799a2f6303b85c136" title="This function will plot a bitmap with the upper left corner to the given coordinates...">lcd_plot_bitmap</a>(uint8_t x, uint8_t y, PGM_P bitmap, uint8_t w, uint8_t h);
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<a name="l00079"></a>00079
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<a name="l00080"></a>00080 <span class="keywordtype">void</span> <a class="code" href="lc7981_8c.html#a2615737020b222e49a4d9c8d08a54f43" title="Plots a single character in graphicmode.">lcd_plot_char</a>(uint8_t x_off, uint8_t y_off, uint8_t c, uint8_t fw, uint8_t fh, PGM_P font);
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<a name="l00081"></a>00081 <span class="keywordtype">void</span> <a class="code" href="lc7981_8c.html#a71a77094675e2850e8a4b442fb6a366e" title="Plots a text using lcd_plot_char.">lcd_plot_text</a>(uint8_t x_off, uint8_t y_off, <span class="keyword">const</span> <span class="keywordtype">char</span> *text, uint8_t fw, uint8_t fh, PGM_P font);
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<a name="l00082"></a>00082 <span class="keywordtype">void</span> <a class="code" href="lc7981_8c.html#a0af06316c8d3d3a57b1ddcf949d85a8c">lcd_plot_pgmtext</a>(uint8_t x_off, uint8_t y_off, PGM_P text, uint8_t fw, uint8_t fh, PGM_P font);
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<a name="l00083"></a>00083
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<a name="l00084"></a>00084
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<a name="l00085"></a>00085 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="lc7981_8h.html#a32fdf2306d469b45e2a3bfd020403d76" title="Generates the strobe signal for writing data.">lcd_strobe</a>();
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<a name="l00086"></a>00086 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="lc7981_8h.html#a31db85f1f48f4802c24218bc165ea4e1" title="Writes a command and a data byte to the lcd.">lcd_write_command</a>(uint8_t cmd, uint8_t data);
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<a name="l00087"></a>00087 <span class="keyword">static</span> <span class="keyword">inline</span> uint8_t <a class="code" href="lc7981_8h.html#a0f6a62f494f3cd66aa1f4a910bca71a8" title="Reads a byte from the display memory.">lcd_read_byte</a>();
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<a name="l00088"></a>00088
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<a name="l00089"></a>00089
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<a name="l00090"></a>00090 <span class="comment">// Static inline functions, that can be used in the library and in the main programm</span>
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<a name="l00091"></a>00091
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<a name="l00092"></a>00092
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<a name="l00097"></a><a class="code" href="lc7981_8h.html#a32fdf2306d469b45e2a3bfd020403d76">00097</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="lc7981_8h.html#a32fdf2306d469b45e2a3bfd020403d76" title="Generates the strobe signal for writing data.">lcd_strobe</a>() {
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<a name="l00098"></a>00098 <a class="code" href="lc7981_8h.html#ae14be306d3620577abc8613d40401b04" title="Set the strobe pin high.">lcd_en_high</a>();
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<a name="l00099"></a>00099 _delay_us(1);
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<a name="l00100"></a>00100 <a class="code" href="lc7981_8h.html#ad8dcdb36a9410fd96b2c936b7c9355dd" title="Set the strobe pin low.">lcd_en_low</a>();
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<a name="l00101"></a>00101
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<a name="l00102"></a>00102 }
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<a name="l00103"></a>00103
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<a name="l00104"></a>00104
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<a name="l00111"></a><a class="code" href="lc7981_8h.html#a31db85f1f48f4802c24218bc165ea4e1">00111</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="lc7981_8h.html#a31db85f1f48f4802c24218bc165ea4e1" title="Writes a command and a data byte to the lcd.">lcd_write_command</a>(uint8_t cmd, uint8_t data) {
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<a name="l00112"></a>00112 _delay_us(30);
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<a name="l00113"></a>00113 <a class="code" href="lc7981_8h.html#a7f5ebe0ca71b1298a7d3423850cc82b1" title="Set the Register-Select pin low.">lcd_rw_low</a>();
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<a name="l00114"></a>00114 <a class="code" href="lc7981_8h.html#a795b48274d3f80bc744a707b67fd93e9" title="Set the Register-Select pin high.">lcd_rs_high</a>();
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<a name="l00115"></a>00115 <a class="code" href="lc7981_8h.html#a25e9d818788f36ed74d7c4579f87f2a6" title="Port used for data.">LCD_DATA</a> = cmd;
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<a name="l00116"></a>00116 _delay_us(1);
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<a name="l00117"></a>00117 <a class="code" href="lc7981_8h.html#a32fdf2306d469b45e2a3bfd020403d76" title="Generates the strobe signal for writing data.">lcd_strobe</a>();
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<a name="l00118"></a>00118
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<a name="l00119"></a>00119 <a class="code" href="lc7981_8h.html#a6edb13d59460246fb4cc32ada1c9f4a8" title="Set the Register-Select pin low.">lcd_rs_low</a>();
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<a name="l00120"></a>00120 <a class="code" href="lc7981_8h.html#a25e9d818788f36ed74d7c4579f87f2a6" title="Port used for data.">LCD_DATA</a> = data;
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<a name="l00121"></a>00121 _delay_us(1);
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<a name="l00122"></a>00122 <a class="code" href="lc7981_8h.html#a32fdf2306d469b45e2a3bfd020403d76" title="Generates the strobe signal for writing data.">lcd_strobe</a>();
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<a name="l00123"></a>00123
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<a name="l00124"></a>00124 }
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<a name="l00125"></a>00125
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<a name="l00134"></a><a class="code" href="lc7981_8h.html#a0f6a62f494f3cd66aa1f4a910bca71a8">00134</a> <span class="keyword">static</span> <span class="keyword">inline</span> uint8_t <a class="code" href="lc7981_8h.html#a0f6a62f494f3cd66aa1f4a910bca71a8" title="Reads a byte from the display memory.">lcd_read_byte</a>() {
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<a name="l00135"></a>00135 uint8_t i,data;
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<a name="l00136"></a>00136
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<a name="l00137"></a>00137 <span class="keywordflow">for</span>(i = 0; i < 2; i++) {
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<a name="l00138"></a>00138 _delay_us(30);
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<a name="l00139"></a>00139 <a class="code" href="lc7981_8h.html#a7f5ebe0ca71b1298a7d3423850cc82b1" title="Set the Register-Select pin low.">lcd_rw_low</a>();
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<a name="l00140"></a>00140 <a class="code" href="lc7981_8h.html#a795b48274d3f80bc744a707b67fd93e9" title="Set the Register-Select pin high.">lcd_rs_high</a>();
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<a name="l00141"></a>00141 <a class="code" href="lc7981_8h.html#a25e9d818788f36ed74d7c4579f87f2a6" title="Port used for data.">LCD_DATA</a> = 0x0D;
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<a name="l00142"></a>00142 _delay_us(1);
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<a name="l00143"></a>00143 <a class="code" href="lc7981_8h.html#ae14be306d3620577abc8613d40401b04" title="Set the strobe pin high.">lcd_en_high</a>();
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<a name="l00144"></a>00144
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<a name="l00145"></a>00145 <a class="code" href="lc7981_8h.html#a0c114e723aa4c162c415fb6d4d963dd7" title="Data-Direction-Register for data.">LCD_DATA_DDR</a> = 0x00;
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<a name="l00146"></a>00146 <a class="code" href="lc7981_8h.html#a6edb13d59460246fb4cc32ada1c9f4a8" title="Set the Register-Select pin low.">lcd_rs_low</a>();
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<a name="l00147"></a>00147 <a class="code" href="lc7981_8h.html#ad0ce3cd9b481370ad4de36eff08440c8" title="Set the Read-Write-Select pin high.">lcd_rw_high</a>();
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<a name="l00148"></a>00148 _delay_us(1);
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<a name="l00149"></a>00149 data = (uint8_t) <a class="code" href="lc7981_8h.html#abd18e47e71697a28fd0ca765cefc7411" title="Port used for reading the data.">LCD_DATA_PIN</a>;
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<a name="l00150"></a>00150 <a class="code" href="lc7981_8h.html#ad8dcdb36a9410fd96b2c936b7c9355dd" title="Set the strobe pin low.">lcd_en_low</a>();
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<a name="l00151"></a>00151 <a class="code" href="lc7981_8h.html#a0c114e723aa4c162c415fb6d4d963dd7" title="Data-Direction-Register for data.">LCD_DATA_DDR</a> = 0xFF;
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<a name="l00152"></a>00152 }
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<a name="l00153"></a>00153 <span class="keywordflow">return</span> data;
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<a name="l00154"></a>00154 }
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<a name="l00155"></a>00155
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<a name="l00156"></a>00156
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<a name="l00157"></a>00157
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<a name="l00158"></a>00158
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<a name="l00159"></a>00159
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<a name="l00160"></a>00160 <span class="preprocessor">#endif </span><span class="comment">/* LC7981_H_ */</span>
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</pre></div></div>
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<hr size="1"/><address style="text-align: right;"><small>Generated on 18 Dec 2009 for glcd by
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.1 </small></address>
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</body>
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</html>
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