111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
#ifndef LiquidCrystal_h
|
|
#define LiquidCrystal_h
|
|
|
|
#include <inttypes.h>
|
|
#include "binary.h"
|
|
#include "Print.h"
|
|
#include <HAL_LPC1768/pinmapping.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 LiquidCrystal : public Print {
|
|
public:
|
|
LiquidCrystal(pin_t rs, pin_t enable,
|
|
pin_t d0, pin_t d1, pin_t d2, pin_t d3,
|
|
pin_t d4, pin_t d5, pin_t d6, pin_t d7);
|
|
LiquidCrystal(pin_t rs, pin_t rw, pin_t enable,
|
|
pin_t d0, pin_t d1, pin_t d2, pin_t d3,
|
|
pin_t d4, pin_t d5, pin_t d6, pin_t d7);
|
|
LiquidCrystal(pin_t rs, pin_t rw, pin_t enable,
|
|
pin_t d0, pin_t d1, pin_t d2, pin_t d3);
|
|
LiquidCrystal(pin_t rs, pin_t enable,
|
|
pin_t d0, pin_t d1, pin_t d2, pin_t d3);
|
|
|
|
void init(uint8_t fourbitmode, pin_t rs, pin_t rw, pin_t enable,
|
|
pin_t d0, pin_t d1, pin_t d2, pin_t d3,
|
|
pin_t d4, pin_t d5, pin_t d6, pin_t d7);
|
|
|
|
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 setRowOffsets(int row1, int row2, int row3, int row4);
|
|
void createChar(uint8_t, uint8_t[]);
|
|
void setCursor(uint8_t, uint8_t);
|
|
virtual size_t write(uint8_t);
|
|
void command(uint8_t);
|
|
|
|
using Print::write;
|
|
private:
|
|
void send(uint8_t, uint8_t);
|
|
void write4bits(uint8_t);
|
|
void write8bits(uint8_t);
|
|
void pulseEnable();
|
|
|
|
pin_t _rs_pin; // LOW: command. HIGH: character.
|
|
pin_t _rw_pin; // LOW: write to LCD. HIGH: read from LCD.
|
|
pin_t _enable_pin; // activated by a HIGH pulse.
|
|
pin_t _data_pins[8];
|
|
|
|
uint8_t _displayfunction;
|
|
uint8_t _displaycontrol;
|
|
uint8_t _displaymode;
|
|
|
|
uint8_t _initialized;
|
|
|
|
uint8_t _numlines;
|
|
uint8_t _row_offsets[4];
|
|
};
|
|
|
|
#endif
|