2011-04-18 05:39:24 +02:00
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//HD44780 compatible LCD display via MAX3421E GPOUT support header
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//pinout: D[4-7] -> GPOUT[4-7], RS-> GPOUT[2], E ->GPOUT[3]
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//
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//this code is heavily borrowed from official Arduino source v.0017
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// link to original http://code.google.com/p/arduino/source/browse/trunk/hardware/libraries/LiquidCrystal/LiquidCrystal.h
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//
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#ifndef _Max_LCD_h_
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#define _Max_LCD_h_
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#include <inttypes.h>
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#include "Print.h"
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#include "Usb.h"
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// commands
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#define LCD_CLEARDISPLAY 0x01
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#define LCD_RETURNHOME 0x02
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#define LCD_ENTRYMODESET 0x04
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#define LCD_DISPLAYCONTROL 0x08
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#define LCD_CURSORSHIFT 0x10
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#define LCD_FUNCTIONSET 0x20
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#define LCD_SETCGRAMADDR 0x40
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#define LCD_SETDDRAMADDR 0x80
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// flags for display entry mode
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#define LCD_ENTRYRIGHT 0x00
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#define LCD_ENTRYLEFT 0x02
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#define LCD_ENTRYSHIFTINCREMENT 0x01
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#define LCD_ENTRYSHIFTDECREMENT 0x00
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// flags for display on/off control
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#define LCD_DISPLAYON 0x04
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#define LCD_DISPLAYOFF 0x00
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#define LCD_CURSORON 0x02
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#define LCD_CURSOROFF 0x00
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#define LCD_BLINKON 0x01
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#define LCD_BLINKOFF 0x00
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// flags for display/cursor shift
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#define LCD_DISPLAYMOVE 0x08
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#define LCD_CURSORMOVE 0x00
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#define LCD_MOVERIGHT 0x04
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#define LCD_MOVELEFT 0x00
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// flags for function set
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#define LCD_8BITMODE 0x10
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#define LCD_4BITMODE 0x00
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#define LCD_2LINE 0x08
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#define LCD_1LINE 0x00
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#define LCD_5x10DOTS 0x04
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#define LCD_5x8DOTS 0x00
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2011-05-19 04:24:13 +02:00
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class Max_LCD //: public Print
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2011-04-18 05:39:24 +02:00
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{
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USB *pUsb;
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public:
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Max_LCD(USB *pusb);
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void init();
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void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS);
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void clear();
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void home();
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void noDisplay();
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void display();
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void noBlink();
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void blink();
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void noCursor();
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void cursor();
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void scrollDisplayLeft();
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void scrollDisplayRight();
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void leftToRight();
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void rightToLeft();
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void autoscroll();
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void noAutoscroll();
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void createChar(uint8_t, uint8_t[]);
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void setCursor(uint8_t, uint8_t);
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virtual void write(uint8_t);
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void command(uint8_t);
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private:
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void sendbyte( uint8_t val );
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uint8_t _displayfunction; //tokill
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uint8_t _displaycontrol;
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uint8_t _displaymode;
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uint8_t _initialized;
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uint8_t _numlines,_currline;
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};
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#endif
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