Improved version of Simon Ford's TextDisplay library, with addressing and timing fixes. Supports up to 20x4 text displays.
TextLCD.h
- Committer:
- bikeNomad
- Date:
- 2010-02-14
- Revision:
- 0:2c5bba968d7c
File content as of revision 0:2c5bba968d7c:
/* mbed TextLCD Library Base Class * Copyright (c) 2007-2009 sford * Released under the MIT License: http://mbed.org/license/mit * Modified by Ned Konz to provide better support for 4-line LCDs and ones with other controller chips. */ #include "TextDisplay.h" #ifndef MBED_TEXTLCD_H #define MBED_TEXTLCD_H class TextLCD : public TextDisplay { public: TextLCD(PinName rs, PinName rw, PinName e, PinName d0, PinName d1, PinName d2, PinName d3, uint16_t rows = 2, uint16_t columns = 16); virtual void character(uint16_t column, uint16_t row, int c); virtual uint16_t rows() { return _rows; } virtual uint16_t columns() { return _columns; } virtual void reset(); virtual void cls(); // locate, putc, printf come from parent class protected: void writeByte(uint16_t value); void writeHalfByte(uint16_t value); void writeCommand(uint16_t command); void writeData(uint16_t data); uint16_t readAddressAndBusy(); void waitUntilDone(); DigitalOut _rw, _rs, _e; BusInOut _d; uint16_t _rows, _columns; }; #endif