Sergey Taranenko
12 years ago
4 changed files with 535 additions and 1 deletions
@ -0,0 +1,389 @@ |
|||||
|
#include "LiquidCrystalRus.h" |
||||
|
|
||||
|
#include <stdio.h> |
||||
|
#include <string.h> |
||||
|
#include <inttypes.h> |
||||
|
#include <avr/pgmspace.h> |
||||
|
|
||||
|
#if defined(ARDUINO) && ARDUINO >= 100 |
||||
|
#include "Arduino.h" |
||||
|
#else |
||||
|
#include "WProgram.h" |
||||
|
#endif |
||||
|
|
||||
|
// it is a russian alphabet translation
|
||||
|
// except 0401 --> 0xa2 = ╗, 0451 --> 0xb5
|
||||
|
PROGMEM prog_uchar utf_recode[] = |
||||
|
{ 0x41,0xa0,0x42,0xa1,0xe0,0x45,0xa3,0xa4,0xa5,0xa6,0x4b,0xa7,0x4d,0x48,0x4f, |
||||
|
0xa8,0x50,0x43,0x54,0xa9,0xaa,0x58,0xe1,0xab,0xac,0xe2,0xad,0xae,0x62,0xaf,0xb0,0xb1, |
||||
|
0x61,0xb2,0xb3,0xb4,0xe3,0x65,0xb6,0xb7,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0x6f, |
||||
|
0xbe,0x70,0x63,0xbf,0x79,0xe4,0x78,0xe5,0xc0,0xc1,0xe6,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7 |
||||
|
}; |
||||
|
|
||||
|
// When the display powers up, it is configured as follows:
|
||||
|
//
|
||||
|
// 1. Display clear
|
||||
|
// 2. Function set:
|
||||
|
// DL = 1; 8-bit interface data
|
||||
|
// N = 0; 1-line display
|
||||
|
// F = 0; 5x8 dot character font
|
||||
|
// 3. Display on/off control:
|
||||
|
// D = 0; Display off
|
||||
|
// C = 0; Cursor off
|
||||
|
// B = 0; Blinking off
|
||||
|
// 4. Entry mode set:
|
||||
|
// I/D = 1; Increment by 1
|
||||
|
// S = 0; No shift
|
||||
|
//
|
||||
|
// Note, however, that resetting the Arduino doesn't reset the LCD, so we
|
||||
|
// can't assume that its in that state when a sketch starts (and the
|
||||
|
// LiquidCrystal constructor is called).
|
||||
|
//
|
||||
|
// modified 27 Jul 2011
|
||||
|
// by Ilya V. Danilov http://mk90.ru/
|
||||
|
|
||||
|
|
||||
|
LiquidCrystalRus::LiquidCrystalRus(uint8_t rs, uint8_t rw, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, |
||||
|
uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) |
||||
|
{ |
||||
|
init(0, rs, rw, enable, d0, d1, d2, d3, d4, d5, d6, d7); |
||||
|
} |
||||
|
|
||||
|
LiquidCrystalRus::LiquidCrystalRus(uint8_t rs, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, |
||||
|
uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) |
||||
|
{ |
||||
|
init(0, rs, 255, enable, d0, d1, d2, d3, d4, d5, d6, d7); |
||||
|
} |
||||
|
|
||||
|
LiquidCrystalRus::LiquidCrystalRus(uint8_t rs, uint8_t rw, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) |
||||
|
{ |
||||
|
init(1, rs, rw, enable, d0, d1, d2, d3, 0, 0, 0, 0); |
||||
|
} |
||||
|
|
||||
|
LiquidCrystalRus::LiquidCrystalRus(uint8_t rs, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) |
||||
|
{ |
||||
|
init(1, rs, 255, enable, d0, d1, d2, d3, 0, 0, 0, 0); |
||||
|
} |
||||
|
|
||||
|
void LiquidCrystalRus::init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, |
||||
|
uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) |
||||
|
{ |
||||
|
_rs_pin = rs; |
||||
|
_rw_pin = rw; |
||||
|
_enable_pin = enable; |
||||
|
|
||||
|
_data_pins[0] = d0; |
||||
|
_data_pins[1] = d1; |
||||
|
_data_pins[2] = d2; |
||||
|
_data_pins[3] = d3; |
||||
|
_data_pins[4] = d4; |
||||
|
_data_pins[5] = d5; |
||||
|
_data_pins[6] = d6; |
||||
|
_data_pins[7] = d7; |
||||
|
|
||||
|
pinMode(_rs_pin, OUTPUT); |
||||
|
// we can save 1 pin by not using RW. Indicate by passing 255 instead of pin#
|
||||
|
if (_rw_pin != 255) { |
||||
|
pinMode(_rw_pin, OUTPUT); |
||||
|
} |
||||
|
pinMode(_enable_pin, OUTPUT); |
||||
|
|
||||
|
if (fourbitmode) |
||||
|
_displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS; |
||||
|
else |
||||
|
_displayfunction = LCD_8BITMODE | LCD_1LINE | LCD_5x8DOTS; |
||||
|
|
||||
|
begin(16, 1); |
||||
|
} |
||||
|
|
||||
|
void LiquidCrystalRus::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) { |
||||
|
if (lines > 1) { |
||||
|
_displayfunction |= LCD_2LINE; |
||||
|
} |
||||
|
_numlines = lines; |
||||
|
_currline = 0; |
||||
|
|
||||
|
// for some 1 line displays you can select a 10 pixel high font
|
||||
|
if ((dotsize != 0) && (lines == 1)) { |
||||
|
_displayfunction |= LCD_5x10DOTS; |
||||
|
} |
||||
|
|
||||
|
// SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
|
||||
|
// according to datasheet, we need at least 40ms after power rises above 2.7V
|
||||
|
// before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50
|
||||
|
delayMicroseconds(50000); |
||||
|
// Now we pull both RS and R/W low to begin commands
|
||||
|
digitalWrite(_rs_pin, LOW); |
||||
|
digitalWrite(_enable_pin, LOW); |
||||
|
if (_rw_pin != 255) { |
||||
|
digitalWrite(_rw_pin, LOW); |
||||
|
} |
||||
|
|
||||
|
//put the LCD into 4 bit or 8 bit mode
|
||||
|
if (! (_displayfunction & LCD_8BITMODE)) { |
||||
|
// this is according to the hitachi HD44780 datasheet
|
||||
|
// figure 24, pg 46
|
||||
|
|
||||
|
// we start in 8bit mode, try to set 4 bit mode
|
||||
|
writeNbits(0x03,4); |
||||
|
delayMicroseconds(4500); // wait min 4.1ms
|
||||
|
|
||||
|
// second try
|
||||
|
writeNbits(0x03,4); |
||||
|
delayMicroseconds(4500); // wait min 4.1ms
|
||||
|
|
||||
|
// third go!
|
||||
|
writeNbits(0x03,4); |
||||
|
delayMicroseconds(150); |
||||
|
|
||||
|
// finally, set to 8-bit interface
|
||||
|
writeNbits(0x02,4); |
||||
|
} else { |
||||
|
// this is according to the hitachi HD44780 datasheet
|
||||
|
// page 45 figure 23
|
||||
|
|
||||
|
// Send function set command sequence
|
||||
|
command(LCD_FUNCTIONSET | _displayfunction); |
||||
|
delayMicroseconds(4500); // wait more than 4.1ms
|
||||
|
|
||||
|
// second try
|
||||
|
command(LCD_FUNCTIONSET | _displayfunction); |
||||
|
delayMicroseconds(150); |
||||
|
|
||||
|
// third go
|
||||
|
command(LCD_FUNCTIONSET | _displayfunction); |
||||
|
} |
||||
|
|
||||
|
// finally, set # lines, font size, etc.
|
||||
|
command(LCD_FUNCTIONSET | _displayfunction); |
||||
|
|
||||
|
// turn the display on with no cursor or blinking default
|
||||
|
_displaycontrol = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF; |
||||
|
display(); |
||||
|
|
||||
|
// clear it off
|
||||
|
clear(); |
||||
|
|
||||
|
// Initialize to default text direction (for romance languages)
|
||||
|
_displaymode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT; |
||||
|
// set the entry mode
|
||||
|
command(LCD_ENTRYMODESET | _displaymode); |
||||
|
|
||||
|
} |
||||
|
|
||||
|
void LiquidCrystalRus::setDRAMModel(uint8_t model) { |
||||
|
_dram_model = model; |
||||
|
} |
||||
|
|
||||
|
/********** high level commands, for the user! */ |
||||
|
void LiquidCrystalRus::clear() |
||||
|
{ |
||||
|
command(LCD_CLEARDISPLAY); // clear display, set cursor position to zero
|
||||
|
delayMicroseconds(2000); // this command takes a long time!
|
||||
|
} |
||||
|
|
||||
|
void LiquidCrystalRus::home() |
||||
|
{ |
||||
|
command(LCD_RETURNHOME); // set cursor position to zero
|
||||
|
delayMicroseconds(2000); // this command takes a long time!
|
||||
|
} |
||||
|
|
||||
|
void LiquidCrystalRus::setCursor(uint8_t col, uint8_t row) |
||||
|
{ |
||||
|
int row_offsets[] = { 0x00, 0x40, 0x14, 0x54 }; |
||||
|
if ( row >= _numlines ) { |
||||
|
row = _numlines-1; // we count rows starting w/0
|
||||
|
} |
||||
|
|
||||
|
command(LCD_SETDDRAMADDR | (col + row_offsets[row])); |
||||
|
} |
||||
|
|
||||
|
// Turn the display on/off (quickly)
|
||||
|
void LiquidCrystalRus::noDisplay() { |
||||
|
_displaycontrol &= ~LCD_DISPLAYON; |
||||
|
command(LCD_DISPLAYCONTROL | _displaycontrol); |
||||
|
} |
||||
|
void LiquidCrystalRus::display() { |
||||
|
_displaycontrol |= LCD_DISPLAYON; |
||||
|
command(LCD_DISPLAYCONTROL | _displaycontrol); |
||||
|
} |
||||
|
|
||||
|
// Turns the underline cursor on/off
|
||||
|
void LiquidCrystalRus::noCursor() { |
||||
|
_displaycontrol &= ~LCD_CURSORON; |
||||
|
command(LCD_DISPLAYCONTROL | _displaycontrol); |
||||
|
} |
||||
|
void LiquidCrystalRus::cursor() { |
||||
|
_displaycontrol |= LCD_CURSORON; |
||||
|
command(LCD_DISPLAYCONTROL | _displaycontrol); |
||||
|
} |
||||
|
|
||||
|
// Turn on and off the blinking cursor
|
||||
|
void LiquidCrystalRus::noBlink() { |
||||
|
_displaycontrol &= ~LCD_BLINKON; |
||||
|
command(LCD_DISPLAYCONTROL | _displaycontrol); |
||||
|
} |
||||
|
void LiquidCrystalRus::blink() { |
||||
|
_displaycontrol |= LCD_BLINKON; |
||||
|
command(LCD_DISPLAYCONTROL | _displaycontrol); |
||||
|
} |
||||
|
|
||||
|
// These commands scroll the display without changing the RAM
|
||||
|
void LiquidCrystalRus::scrollDisplayLeft(void) { |
||||
|
command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT); |
||||
|
} |
||||
|
void LiquidCrystalRus::scrollDisplayRight(void) { |
||||
|
command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT); |
||||
|
} |
||||
|
|
||||
|
// This is for text that flows Left to Right
|
||||
|
void LiquidCrystalRus::leftToRight(void) { |
||||
|
_displaymode |= LCD_ENTRYLEFT; |
||||
|
command(LCD_ENTRYMODESET | _displaymode); |
||||
|
} |
||||
|
|
||||
|
// This is for text that flows Right to Left
|
||||
|
void LiquidCrystalRus::rightToLeft(void) { |
||||
|
_displaymode &= ~LCD_ENTRYLEFT; |
||||
|
command(LCD_ENTRYMODESET | _displaymode); |
||||
|
} |
||||
|
|
||||
|
// This will 'right justify' text from the cursor
|
||||
|
void LiquidCrystalRus::autoscroll(void) { |
||||
|
_displaymode |= LCD_ENTRYSHIFTINCREMENT; |
||||
|
command(LCD_ENTRYMODESET | _displaymode); |
||||
|
} |
||||
|
|
||||
|
// This will 'left justify' text from the cursor
|
||||
|
void LiquidCrystalRus::noAutoscroll(void) { |
||||
|
_displaymode &= ~LCD_ENTRYSHIFTINCREMENT; |
||||
|
command(LCD_ENTRYMODESET | _displaymode); |
||||
|
} |
||||
|
|
||||
|
// Allows us to fill the first 8 CGRAM locations
|
||||
|
// with custom characters
|
||||
|
void LiquidCrystalRus::createChar(uint8_t location, uint8_t charmap[]) { |
||||
|
location &= 0x7; // we only have 8 locations 0-7
|
||||
|
command(LCD_SETCGRAMADDR | (location << 3)); |
||||
|
for (int i=0; i<8; i++) { |
||||
|
write(charmap[i]); |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
/*********** mid level commands, for sending data/cmds */ |
||||
|
|
||||
|
inline void LiquidCrystalRus::command(uint8_t value) { |
||||
|
send(value, LOW); |
||||
|
} |
||||
|
|
||||
|
#if defined(ARDUINO) && ARDUINO >= 100 |
||||
|
size_t LiquidCrystalRus::write(uint8_t value) |
||||
|
#else |
||||
|
void LiquidCrystalRus::write(uint8_t value) |
||||
|
#endif |
||||
|
{ |
||||
|
uint8_t out_char=value; |
||||
|
|
||||
|
if (_dram_model == LCD_DRAM_WH1601) { |
||||
|
uint8_t ac=recv(LOW) & 0x7f; |
||||
|
if (ac>7 && ac<0x14) command(LCD_SETDDRAMADDR | (0x40+ac-8)); |
||||
|
} |
||||
|
|
||||
|
if (value>=0x80) { // UTF-8 handling
|
||||
|
if (value >= 0xc0) { |
||||
|
utf_hi_char = value - 0xd0; |
||||
|
} else { |
||||
|
value &= 0x3f; |
||||
|
if (!utf_hi_char && (value == 1)) |
||||
|
send(0xa2,HIGH); // ╗
|
||||
|
else if ((utf_hi_char == 1) && (value == 0x11)) |
||||
|
send(0xb5,HIGH); // ╦
|
||||
|
else |
||||
|
send(pgm_read_byte_near(utf_recode + value + (utf_hi_char<<6) - 0x10), HIGH); |
||||
|
} |
||||
|
} else send(out_char, HIGH); |
||||
|
#if defined(ARDUINO) && ARDUINO >= 100 |
||||
|
return 1; // assume sucess
|
||||
|
#endif |
||||
|
} |
||||
|
|
||||
|
/************ low level data pushing commands **********/ |
||||
|
|
||||
|
// write either command or data, with automatic 4/8-bit selection
|
||||
|
void LiquidCrystalRus::send(uint8_t value, uint8_t mode) { |
||||
|
digitalWrite(_rs_pin, mode); |
||||
|
|
||||
|
// if there is a RW pin indicated, set it low to Write
|
||||
|
if (_rw_pin != 255) { |
||||
|
digitalWrite(_rw_pin, LOW); |
||||
|
} |
||||
|
|
||||
|
if (_displayfunction & LCD_8BITMODE) { |
||||
|
writeNbits(value,8); |
||||
|
} else { |
||||
|
writeNbits(value>>4,4); |
||||
|
writeNbits(value,4); |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
// read data, with automatic 4/8-bit selection
|
||||
|
uint8_t LiquidCrystalRus::recv(uint8_t mode) { |
||||
|
uint8_t retval; |
||||
|
digitalWrite(_rs_pin, mode); |
||||
|
|
||||
|
// if there is a RW pin indicated, set it low to Write
|
||||
|
if (_rw_pin != 255) { |
||||
|
digitalWrite(_rw_pin, HIGH); |
||||
|
} |
||||
|
|
||||
|
if (_displayfunction & LCD_8BITMODE) { |
||||
|
retval = readNbits(8); |
||||
|
} else { |
||||
|
retval = readNbits(4) << 4; |
||||
|
retval |= readNbits(4); |
||||
|
} |
||||
|
return retval; |
||||
|
} |
||||
|
void LiquidCrystalRus::pulseEnable() { |
||||
|
digitalWrite(_enable_pin, LOW); |
||||
|
delayMicroseconds(1); |
||||
|
digitalWrite(_enable_pin, HIGH); |
||||
|
delayMicroseconds(1); // enable pulse must be >450ns
|
||||
|
digitalWrite(_enable_pin, LOW); |
||||
|
delayMicroseconds(100); // commands need > 37us to settle
|
||||
|
} |
||||
|
|
||||
|
void LiquidCrystalRus::writeNbits(uint8_t value, uint8_t n) { |
||||
|
for (int i = 0; i < n; i++) { |
||||
|
pinMode(_data_pins[i], OUTPUT); |
||||
|
digitalWrite(_data_pins[i], (value >> i) & 0x01); |
||||
|
} |
||||
|
|
||||
|
pulseEnable(); |
||||
|
} |
||||
|
|
||||
|
uint8_t LiquidCrystalRus::readNbits(uint8_t n) { |
||||
|
uint8_t retval=0; |
||||
|
for (int i = 0; i < n; i++) { |
||||
|
pinMode(_data_pins[i], INPUT); |
||||
|
} |
||||
|
|
||||
|
digitalWrite(_enable_pin, LOW); |
||||
|
delayMicroseconds(1); |
||||
|
digitalWrite(_enable_pin, HIGH); |
||||
|
delayMicroseconds(1); // enable pulse must be >450ns
|
||||
|
|
||||
|
for (int i = 0; i < n; i++) { |
||||
|
retval |= (digitalRead(_data_pins[i]) == HIGH)?(1 << i):0; |
||||
|
} |
||||
|
|
||||
|
digitalWrite(_enable_pin, LOW); |
||||
|
|
||||
|
return retval; |
||||
|
} |
||||
|
|
||||
@ -0,0 +1,129 @@ |
|||||
|
//
|
||||
|
// based on LiquidCrystal library from ArduinoIDE, see http://arduino.cc
|
||||
|
// modified 27 Jul 2011
|
||||
|
// by Ilya V. Danilov http://mk90.ru/
|
||||
|
//
|
||||
|
|
||||
|
#ifndef LiquidCrystalRus_h |
||||
|
#define LiquidCrystalRus_h |
||||
|
|
||||
|
#include <inttypes.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 |
||||
|
|
||||
|
// enum for
|
||||
|
#define LCD_DRAM_Normal 0x00 |
||||
|
#define LCD_DRAM_WH1601 0x01 |
||||
|
|
||||
|
|
||||
|
class LiquidCrystalRus : public Print { |
||||
|
public: |
||||
|
LiquidCrystalRus(uint8_t rs, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, |
||||
|
uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); |
||||
|
LiquidCrystalRus(uint8_t rs, uint8_t rw, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, |
||||
|
uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); |
||||
|
LiquidCrystalRus(uint8_t rs, uint8_t rw, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3); |
||||
|
LiquidCrystalRus(uint8_t rs, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3); |
||||
|
|
||||
|
void init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable, |
||||
|
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, |
||||
|
uint8_t d4, uint8_t d5, uint8_t d6, uint8_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 createChar(uint8_t, uint8_t[]); |
||||
|
void setCursor(uint8_t, uint8_t); |
||||
|
|
||||
|
#if defined(ARDUINO) && ARDUINO >= 100 |
||||
|
virtual size_t write(uint8_t); |
||||
|
using Print::write; |
||||
|
#else |
||||
|
virtual void write(uint8_t); |
||||
|
#endif |
||||
|
|
||||
|
void command(uint8_t); |
||||
|
|
||||
|
void setDRAMModel(uint8_t); |
||||
|
|
||||
|
private: |
||||
|
void send(uint8_t, uint8_t); |
||||
|
void writeNbits(uint8_t, uint8_t); |
||||
|
uint8_t recv(uint8_t); |
||||
|
uint8_t readNbits(uint8_t); |
||||
|
void pulseEnable(); |
||||
|
|
||||
|
uint8_t _rs_pin; // LOW: command. HIGH: character.
|
||||
|
uint8_t _rw_pin; // LOW: write to LCD. HIGH: read from LCD.
|
||||
|
uint8_t _enable_pin; // activated by a HIGH pulse.
|
||||
|
uint8_t _data_pins[8]; |
||||
|
|
||||
|
uint8_t _displayfunction; |
||||
|
uint8_t _displaycontrol; |
||||
|
uint8_t _displaymode; |
||||
|
|
||||
|
uint8_t _initialized; |
||||
|
|
||||
|
uint8_t _numlines,_currline; |
||||
|
|
||||
|
uint8_t _dram_model; |
||||
|
uint8_t utf_hi_char; // UTF-8 high part
|
||||
|
}; |
||||
|
|
||||
|
#endif |
||||
Loading…
Reference in new issue