Setup da Placa LCD Gian - Leite
Fork of TextLCD by
TextLCD.h
- Committer:
- wim
- Date:
- 2013-02-04
- Revision:
- 10:dd9b3a696acd
- Parent:
- 9:0893d986e717
- Child:
- 11:9ec02df863a1
File content as of revision 10:dd9b3a696acd:
/* mbed TextLCD Library, for a 4-bit LCD based on HD44780 * Copyright (c) 2007-2010, sford, http://mbed.org * 2013, WH, Updated LCD types and fixed lcd address issues * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #ifndef MBED_TEXTLCD_H #define MBED_TEXTLCD_H #include "mbed.h" /** A TextLCD interface for driving 4-bit HD44780-based LCDs * * Currently supports 8x1, 8x2, 16x2, 16x4, 20x2, 20x4, 24x2, 24x4 and 40x2 panels * * @code * #include "mbed.h" * #include "TextLCD.h" * * TextLCD lcd(p10, p12, p15, p16, p29, p30); // rs, e, d4-d7 * * int main() { * lcd.printf("Hello World!\n"); * } * @endcode */ class TextLCD : public Stream { public: /** LCD panel format */ enum LCDType { LCD8x1, /**< 8x1 LCD panel */ LCD8x2, /**< 8x2 LCD panel */ LCD16x2, /**< 16x2 LCD panel (default) */ LCD16x2B, /**< 16x2 LCD panel alternate addressing */ LCD16x4, /**< 16x4 LCD panel */ LCD20x2, /**< 20x2 LCD panel */ LCD20x4, /**< 20x4 LCD panel */ LCD24x2, /**< 24x2 LCD panel */ LCD24x4, /**< 24x4 LCD panel, special mode KS0078 */ LCD40x2 /**< 40x2 LCD panel */ }; /** LCD Cursor control */ enum LCDCursor { CurOn, CurOff }; /** Create a TextLCD interface * * @param rs Instruction/data control line * @param e Enable line (clock) * @param d4-d7 Data lines for using as a 4-bit interface * @param type Sets the panel size/addressing mode (default = LCD16x2) */ TextLCD(PinName rs, PinName e, PinName d4, PinName d5, PinName d6, PinName d7, LCDType type = LCD16x2); #if DOXYGEN_ONLY /** Write a character to the LCD * * @param c The character to write to the display */ int putc(int c); /** Write a formated string to the LCD * * @param format A printf-style format string, followed by the * variables to use in formating the string. */ int printf(const char* format, ...); #endif /** Locate to a screen column and row * * @param column The horizontal position from the left, indexed from 0 * @param row The vertical position from the top, indexed from 0 */ void locate(int column, int row); /** Return the memoryaddress of screen column and row location * * @param column The horizontal position from the left, indexed from 0 * @param row The vertical position from the top, indexed from 0 * @param return The memoryaddress of screen column and row location */ int getAddress(int column, int row); /** Set the memoryaddress of screen column and row location * * @param column The horizontal position from the left, indexed from 0 * @param row The vertical position from the top, indexed from 0 */ void setAddress(int column, int row); /** Set the Cursormode * * @param show The Cursor mode (CurOn or CurOff) * @param return The current Cursor mode */ LCDCursor cursor(LCDCursor show); /** Clear the screen and locate to 0,0 */ void cls(); /** Return the number of rows * * @param return The number of rows */ int rows(); /** Return the number of columns * * @param return The number of columns */ int columns(); protected: // Stream implementation functions virtual int _putc(int value); virtual int _getc(); int address(int column, int row); void character(int column, int row, int c); void writeByte(int value); void writeCommand(int command); void writeData(int data); DigitalOut _rs, _e; BusOut _d; LCDType _type; int _column; int _row; LCDCursor _cursor; }; #endif