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- /* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
-
- This software may be distributed and modified under the terms of the GNU
- General Public License version 2 (GPL2) as published by the Free Software
- Foundation and appearing in the file GPL2.TXT included in the packaging of
- this file. Please note that GPL2 Section 2[b] requires that all works based
- on this software must also be made publicly available under the terms of
- the GPL2 ("Copyleft").
-
- Contact information
- -------------------
-
- Circuits At Home, LTD
- Web : http://www.circuitsathome.com
- e-mail : [email protected]
- */
- //HD44780 compatible LCD display via MAX3421E GPOUT support header
- //pinout: D[4-7] -> GPOUT[4-7], RS-> GPOUT[2], E ->GPOUT[3]
- //
-
- #ifndef _Max_LCD_h_
- #define _Max_LCD_h_
-
- #include "Usb.h"
- #include "Print.h"
-
- // commands
- #define LCD_CLEARDISPLAY 0x01
- #define LCD_RETURNHOME 0x02
- #define LCD_ENTRYMODESET 0x04
- #define LCD_DISPLAYCONTROL 0x08
- #define LCD_CURSORSHIFT 0x10
- #define LCD_FUNCTIONSET 0x20
- #define LCD_SETCGRAMADDR 0x40
- #define LCD_SETDDRAMADDR 0x80
-
- // flags for display entry mode
- #define LCD_ENTRYRIGHT 0x00
- #define LCD_ENTRYLEFT 0x02
- #define LCD_ENTRYSHIFTINCREMENT 0x01
- #define LCD_ENTRYSHIFTDECREMENT 0x00
-
- // flags for display on/off control
- #define LCD_DISPLAYON 0x04
- #define LCD_DISPLAYOFF 0x00
- #define LCD_CURSORON 0x02
- #define LCD_CURSOROFF 0x00
- #define LCD_BLINKON 0x01
- #define LCD_BLINKOFF 0x00
-
- // flags for display/cursor shift
- #define LCD_DISPLAYMOVE 0x08
- #define LCD_CURSORMOVE 0x00
- #define LCD_MOVERIGHT 0x04
- #define LCD_MOVELEFT 0x00
-
- // flags for function set
- #define LCD_8BITMODE 0x10
- #define LCD_4BITMODE 0x00
- #define LCD_2LINE 0x08
- #define LCD_1LINE 0x00
- #define LCD_5x10DOTS 0x04
- #define LCD_5x8DOTS 0x00
-
- class Max_LCD : public Print {
- USB *pUsb;
-
- public:
- Max_LCD(USB *pusb);
- void init();
- void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS);
- void clear();
- void home();
- void noDisplay();
- void display();
- void noBlink();
- void blink();
- void noCursor();
- void cursor();
- void scrollDisplayLeft();
- void scrollDisplayRight();
- void leftToRight();
- void rightToLeft();
- void autoscroll();
- void noAutoscroll();
- void createChar(uint8_t, uint8_t[]);
- void setCursor(uint8_t, uint8_t);
- void command(uint8_t);
-
- #if defined(ARDUINO) && ARDUINO >=100
- size_t write(uint8_t);
- using Print::write;
- #else
- void write(uint8_t);
- #endif
-
- private:
- void sendbyte(uint8_t val);
- uint8_t _displayfunction; //tokill
- uint8_t _displaycontrol;
- uint8_t _displaymode;
- uint8_t _initialized;
- uint8_t _numlines, _currline;
- };
-
- #endif
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