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Wave-Player with TLV320
Dependencies: FatFileSystemCpp I2SSlave TLV320 mbed
Diff: LCD/LCD.h
- Revision:
- 0:3087f1924901
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LCD/LCD.h Wed Dec 09 20:58:55 2015 +0000 @@ -0,0 +1,67 @@ +/* mbed LCD Library, for a 4-bit LCD based on HD44780 + * Copyright (c) 2007-2012, hb9gaa + */ + +#ifndef MBED_LCD_H +#define MBED_LCD_H + +#include "mbed.h" + +class TextLCD : public Stream { +public: + + /** LCD panel format */ + enum LCDType { + LCD16x2 /**< 16x2 LCD panel (default) */ + , LCD16x2B /**< 16x2 LCD panel alternate addressing */ + , LCD20x2 /**< 20x2 LCD panel */ + , LCD20x4 /**< 20x4 LCD panel */ + }; + + /** Create a TextLCD interface + * @param rs Instruction/data control line + * @param e Enable line (clock) + * @param d0-d3 Data lines + * @param type Sets the panel size/addressing mode (default = LCD16x2) + */ + TextLCD(PinName rs, PinName rw, PinName e, PinName d0, PinName d1, PinName d2, PinName d3, LCDType type = LCD16x2); + + /** Write a character to the LCD + * @param c The character to write to the display + */ + int putc(int c); + + /** 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); + void buildChar(unsigned char *p); + + /** Clear the screen and locate to 0,0 */ + void cls(); + + int rows(); + 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, _rw, _e; + BusOut _d; + LCDType _type; + + int _column; + int _row; +}; + +#endif