mirror of
https://github.com/felis/USB_Host_Shield_2.0.git
synced 2024-03-22 11:31:26 +01:00
106 lines
2.9 KiB
C++
106 lines
2.9 KiB
C++
/* 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 : support@circuitsathome.com
|
|
*/
|
|
//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
|
|
virtual size_t write(uint8_t);
|
|
using Print::write;
|
|
#else
|
|
virtual 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
|