From f201dab33e228e89394b0352d077504ff2391487 Mon Sep 17 00:00:00 2001 From: Cristian Maglie Date: Mon, 3 Sep 2012 16:13:28 +0200 Subject: LiquidCrystal library is already multiplatform compliant, moved into libraries folder --- libraries/LiquidCrystal/LiquidCrystal.cpp | 310 ------------------------------ 1 file changed, 310 deletions(-) delete mode 100644 libraries/LiquidCrystal/LiquidCrystal.cpp (limited to 'libraries/LiquidCrystal/LiquidCrystal.cpp') diff --git a/libraries/LiquidCrystal/LiquidCrystal.cpp b/libraries/LiquidCrystal/LiquidCrystal.cpp deleted file mode 100644 index 0653487..0000000 --- a/libraries/LiquidCrystal/LiquidCrystal.cpp +++ /dev/null @@ -1,310 +0,0 @@ -#include "LiquidCrystal.h" - -#include -#include -#include -#include "Arduino.h" - -// 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). - -LiquidCrystal::LiquidCrystal(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); -} - -LiquidCrystal::LiquidCrystal(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); -} - -LiquidCrystal::LiquidCrystal(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); -} - -LiquidCrystal::LiquidCrystal(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 LiquidCrystal::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 LiquidCrystal::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 - write4bits(0x03); - delayMicroseconds(4500); // wait min 4.1ms - - // second try - write4bits(0x03); - delayMicroseconds(4500); // wait min 4.1ms - - // third go! - write4bits(0x03); - delayMicroseconds(150); - - // finally, set to 4-bit interface - write4bits(0x02); - } 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); - -} - -/********** high level commands, for the user! */ -void LiquidCrystal::clear() -{ - command(LCD_CLEARDISPLAY); // clear display, set cursor position to zero - delayMicroseconds(2000); // this command takes a long time! -} - -void LiquidCrystal::home() -{ - command(LCD_RETURNHOME); // set cursor position to zero - delayMicroseconds(2000); // this command takes a long time! -} - -void LiquidCrystal::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 LiquidCrystal::noDisplay() { - _displaycontrol &= ~LCD_DISPLAYON; - command(LCD_DISPLAYCONTROL | _displaycontrol); -} -void LiquidCrystal::display() { - _displaycontrol |= LCD_DISPLAYON; - command(LCD_DISPLAYCONTROL | _displaycontrol); -} - -// Turns the underline cursor on/off -void LiquidCrystal::noCursor() { - _displaycontrol &= ~LCD_CURSORON; - command(LCD_DISPLAYCONTROL | _displaycontrol); -} -void LiquidCrystal::cursor() { - _displaycontrol |= LCD_CURSORON; - command(LCD_DISPLAYCONTROL | _displaycontrol); -} - -// Turn on and off the blinking cursor -void LiquidCrystal::noBlink() { - _displaycontrol &= ~LCD_BLINKON; - command(LCD_DISPLAYCONTROL | _displaycontrol); -} -void LiquidCrystal::blink() { - _displaycontrol |= LCD_BLINKON; - command(LCD_DISPLAYCONTROL | _displaycontrol); -} - -// These commands scroll the display without changing the RAM -void LiquidCrystal::scrollDisplayLeft(void) { - command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT); -} -void LiquidCrystal::scrollDisplayRight(void) { - command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT); -} - -// This is for text that flows Left to Right -void LiquidCrystal::leftToRight(void) { - _displaymode |= LCD_ENTRYLEFT; - command(LCD_ENTRYMODESET | _displaymode); -} - -// This is for text that flows Right to Left -void LiquidCrystal::rightToLeft(void) { - _displaymode &= ~LCD_ENTRYLEFT; - command(LCD_ENTRYMODESET | _displaymode); -} - -// This will 'right justify' text from the cursor -void LiquidCrystal::autoscroll(void) { - _displaymode |= LCD_ENTRYSHIFTINCREMENT; - command(LCD_ENTRYMODESET | _displaymode); -} - -// This will 'left justify' text from the cursor -void LiquidCrystal::noAutoscroll(void) { - _displaymode &= ~LCD_ENTRYSHIFTINCREMENT; - command(LCD_ENTRYMODESET | _displaymode); -} - -// Allows us to fill the first 8 CGRAM locations -// with custom characters -void LiquidCrystal::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 LiquidCrystal::command(uint8_t value) { - send(value, LOW); -} - -inline size_t LiquidCrystal::write(uint8_t value) { - send(value, HIGH); - return 1; // assume sucess -} - -/************ low level data pushing commands **********/ - -// write either command or data, with automatic 4/8-bit selection -void LiquidCrystal::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) { - write8bits(value); - } else { - write4bits(value>>4); - write4bits(value); - } -} - -void LiquidCrystal::pulseEnable(void) { - 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 LiquidCrystal::write4bits(uint8_t value) { - for (int i = 0; i < 4; i++) { - pinMode(_data_pins[i], OUTPUT); - digitalWrite(_data_pins[i], (value >> i) & 0x01); - } - - pulseEnable(); -} - -void LiquidCrystal::write8bits(uint8_t value) { - for (int i = 0; i < 8; i++) { - pinMode(_data_pins[i], OUTPUT); - digitalWrite(_data_pins[i], (value >> i) & 0x01); - } - - pulseEnable(); -} -- cgit v1.2.3-18-g5258