Atsuhiko Kogure / Mbed 2 deprecated mmain

naze-shippai-suru-noka

Dependencies:   TextLCD mbed pop3

TextLCD.h@1:c5b02f551a38, 2011-11-01 (annotated)

Committer:
kogure7
Date:
Tue Nov 01 11:58:29 2011 +0000
Revision:
1:c5b02f551a38
Parent:
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/* mbed TextLCD Library, for a 4-bit LCD based on HD44780





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 * Copyright (c) 2007-2010, sford, http://mbed.org





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 *





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 * Permission is hereby granted, free of charge, to any person obtaining a copy





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 * of this software and associated documentation files (the "Software"), to deal





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 * in the Software without restriction, including without limitation the rights





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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell





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 * copies of the Software, and to permit persons to whom the Software is





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 * furnished to do so, subject to the following conditions:





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 *





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 * The above copyright notice and this permission notice shall be included in





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 * all copies or substantial portions of the Software.





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 *





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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR





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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,





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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE





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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER





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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,





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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN





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 * THE SOFTWARE.





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 */





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#ifndef MBED_TEXTLCD_H





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#define MBED_TEXTLCD_H





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#include "mbed.h"





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/** A TextLCD interface for driving 4-bit HD44780-based LCDs





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 *





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 * Currently supports 16x2, 20x2 and 20x4 panels





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 *





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 * @code





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 * #include "mbed.h"





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 * #include "TextLCD.h"





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 * 





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 * TextLCD lcd(p10, p12, p15, p16, p29, p30); // rs, e, d4-d7





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 * 





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 * int main() {





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 *     lcd.printf("Hello World!\n");





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 * }





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 * @endcode





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 */





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class TextLCD : public Stream {





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public:





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    /** LCD panel format */





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    enum LCDType {





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        LCD16x2     /**< 16x2 LCD panel (default) */





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        , LCD16x2B  /**< 16x2 LCD panel alternate addressing */





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        , LCD20x2   /**< 20x2 LCD panel */





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        , LCD20x4   /**< 20x4 LCD panel */





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    };





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    /** Create a TextLCD interface





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     *





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     * @param rs    Instruction/data control line





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     * @param e     Enable line (clock)





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     * @param d4-d7 Data lines for using as a 4-bit interface





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     * @param type  Sets the panel size/addressing mode (default = LCD16x2)





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     */





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    TextLCD(PinName rs, PinName e, PinName d4, PinName d5, PinName d6, PinName d7, LCDType type = LCD16x2);





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#if DOXYGEN_ONLY





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    /** Write a character to the LCD





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     *





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     * @param c The character to write to the display





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     */





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    int putc(int c);





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    /** Write a formated string to the LCD





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     *





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     * @param format A printf-style format string, followed by the





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     *               variables to use in formating the string.





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     */





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    int printf(const char* format, ...);





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#endif





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    /** Locate to a screen column and row





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     *





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     * @param column  The horizontal position from the left, indexed from 0





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     * @param row     The vertical position from the top, indexed from 0





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     */





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    void locate(int column, int row);





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    /** Clear the screen and locate to 0,0 */





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    void cls();





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    int rows();





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    int columns();





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protected:





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    // Stream implementation functions





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    virtual int _putc(int value);





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    virtual int _getc();





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    int address(int column, int row);





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    void character(int column, int row, int c);





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    void writeByte(int value);





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    void writeCommand(int command);





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    void writeData(int data);





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    DigitalOut _rs, _e;





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    BusOut _d;





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    LCDType _type;





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    int _column;





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    int _row;





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};





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#endif