tesbed webserver sur SD card ( htm lile) usb serial LCD + analog in and led out from mbed
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NewTextLCD.h
00001 /* mbed TextLCD Library, for a 4-bit LCD based on HD44780 00002 * Copyright (c) 2007-2010, sford, http://mbed.org 00003 * 2011-06-11 TP modified for Elmicro Testbed with display GDM4000D 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 MBED_TEXTLCD_H 00025 #define MBED_TEXTLCD_H 00026 00027 #include "mbed.h" 00028 00029 /** A TextLCD interface for driving 4-bit HD44780-based LCDs 00030 * 00031 * Currently supports 16x2, 20x2 and 20x4 panels 00032 * 00033 * @code 00034 * #include "mbed.h" 00035 * #include "NewTextLCD.h" 00036 * 00037 * TextLCD lcd(p26, p25, p24, p23, p22, p20, p19, TextLCD::LCD20x4); // rs, rw, e, d4-d7 00038 * 00039 * int main() { 00040 * lcd.printf("Hello mbed\n"); 00041 * 00042 * //define user chars 00043 * int pattern[8]; 00044 * int pattern1[8]; 00045 * pattern[0] = 1; // * 00046 * pattern[1] = 3; // ** 00047 * pattern[2] = 5; // * * 00048 * pattern[3] = 9; // * * 00049 * pattern[4] = 0x11; // * * 00050 * pattern[5] = 0x19; // ** * 00051 * pattern[6] = 0x1d; // *** * 00052 * pattern[7] = 0x1f; // ***** 00053 * 00054 * pattern1[0] = 0x10; // * 00055 * pattern1[1] = 0x18; // ** 00056 * pattern1[2] = 0x14; // * * 00057 * pattern1[3] = 0x12; // * * 00058 * pattern1[4] = 0x11; // * * 00059 * pattern1[5] = 0x13; // * ** 00060 * pattern1[6] = 0x17; // * *** 00061 * pattern1[7] = 0x1f; // ***** 00062 * 00063 * lcd.writeCGRAM(0, pattern); 00064 * lcd.writeCGRAM(1, pattern1); 00065 * 00066 * lcd.locate(15,0); 00067 * lcd.putc(0); // user pattern 0 00068 * lcd.putc(1); // user pattern 1 00069 * } 00070 * @endcode 00071 */ 00072 class TextLCD : public Stream { 00073 public: 00074 00075 /** LCD panel format */ 00076 enum LCDType { 00077 LCD16x2 /**< 16x2 LCD panel (default) */ 00078 , LCD16x2B /**< 16x2 LCD panel alternate addressing */ 00079 , LCD20x2 /**< 20x2 LCD panel */ 00080 , LCD20x4 /**< 20x4 LCD panel */ 00081 , LCD24x2 /**< 24x2 LCD panel */ 00082 , LCDuser /** User defined LCD, rows/columns must be set */ 00083 }; 00084 00085 /** Create a TextLCD interface 00086 * 00087 * @param rs Instruction/data control line 00088 * @param rw R/W line 00089 * @param e Enable line (clock) 00090 * @param d4-d7 Data lines 00091 * @param type Sets the panel size/addressing mode (default = LCD16x2) 00092 */ 00093 TextLCD(PinName rs, PinName rw, PinName e, PinName d4, PinName d5, PinName d6, PinName d7, LCDType type = LCD16x2); 00094 00095 #if DOXYGEN_ONLY 00096 /** Write a character to the LCD 00097 * 00098 * @param c The character to write to the display 00099 */ 00100 int putc(int c); 00101 00102 /** Write a formated string to the LCD 00103 * 00104 * @param format A printf-style format string, followed by the 00105 * variables to use in formating the string. 00106 */ 00107 int printf(const char* format, ...); 00108 #endif 00109 00110 /** Locate to a screen column and row 00111 * 00112 * @param column The horizontal position from the left, indexed from 0 00113 * @param row The vertical position from the top, indexed from 0 00114 */ 00115 void locate(int column, int row); 00116 00117 /** Clear the screen and locate to 0,0 */ 00118 void cls(); 00119 00120 struct LCDparam { 00121 int rows; // number of lines // 00122 int columns; // number of columns // 00123 int delay; // delay for commands microseconds // 00124 int adresses[4]; // start adresses for 4 lines // 00125 } LCDparam; 00126 00127 /** write a user defined char 00128 * 00129 * @param address The user defined char (0-7) 00130 * @param pattern[8] bit pattern 5*8 of char 00131 */ 00132 void writeCGRAM(int address, int pattern[8]); 00133 00134 /** Get the char at the current position 00135 * 00136 * int getc() 00137 */ 00138 void writeCommand(int command); 00139 00140 protected: 00141 00142 // Stream implementation functions 00143 virtual int _putc(int value); 00144 virtual int _getc(); 00145 00146 int address(int column, int row); 00147 void character(int column, int row, int c); 00148 void writeByte(int value); 00149 void writeData(int data); 00150 void setLCDparam(LCDType _type); 00151 DigitalOut _rs, _rw, _e; 00152 BusOut _d; 00153 LCDType _type; 00154 00155 int _column; 00156 int _row; 00157 }; 00158 00159 #endif
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