Display text on LCD displays (even on multiple ones). Allow to create windows (frames) on display, and to combine them (split, add, duplicate, scroll). See http://mbed.org/users/hlipka/notebook/lcdwindow/ for more information.
hd44780_8bit.h
00001 /* 00002 * mbed LCDWindow library 00003 * Copyright (c) 2010 Hendrik Lipka 00004 * 00005 * Permission is hereby granted, free of charge, to any person obtaining a copy 00006 * of this software and associated documentation files (the "Software"), to deal 00007 * in the Software without restriction, including without limitation the rights 00008 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00009 * copies of the Software, and to permit persons to whom the Software is 00010 * furnished to do so, subject to the following conditions: 00011 * 00012 * The above copyright notice and this permission notice shall be included in 00013 * all copies or substantial portions of the Software. 00014 * 00015 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00016 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00017 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00018 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00019 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00020 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00021 * THE SOFTWARE. 00022 */ 00023 00024 #ifndef HD44780_8BIT_H_ 00025 #define HD44780_8BIT_H_ 00026 00027 #include "lcd.h" 00028 00029 #include "BusOut.h" 00030 #include "DigitalOut.h" 00031 00032 using namespace mbed; 00033 00034 /** 00035 * class for connecting HD44780-based LCD-Display (or using similiar controllers) 00036 * displays are connected in 8bit-mode 00037 * currently only 1 or 2 lines are supported 00038 */ 00039 class HD44780LCD8bit: public TextLCDBase 00040 { 00041 public: 00042 /** 00043 * @param width number of chars per line 00044 * @param height number of lines (currently only 1 and 2 work) 00045 * @param data the bus object used for sending data (must be 8bit) 00046 * @param enable the pin name for the enable line (1=active) 00047 * @param rs the pin name for the register select line (0=cmd, 1=data) 00048 */ 00049 HD44780LCD8bit(unsigned int columns, unsigned int rows, BusOut *data, PinName enable, PinName rs); 00050 virtual void init(); 00051 virtual void writeText(const unsigned int column, const unsigned int row, const char text[]); 00052 virtual void clear(); 00053 virtual void character(int column, int row, int c); 00054 00055 protected: 00056 void sendCmd(const unsigned char byte); 00057 void sendData(const unsigned char byte); 00058 00059 void sendByte(const unsigned char byte); 00060 00061 BusOut* _data; 00062 DigitalOut *_enable, *_rs; 00063 }; 00064 #endif
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