2018/3/9 s240メインプログラム用
Fork of TextOLED by
Diff: TextOLED.cpp
- Revision:
- 0:4467cf9395fd
- Child:
- 1:df8722660f48
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextOLED.cpp Thu Jun 21 02:52:20 2012 +0000 @@ -0,0 +1,181 @@ +/* mbed TextOLED Library, for a 4-bit LCD based on Winstar WEH000000 series + * Originl: http://mbed.org/users/simon/libraries/TextLCD/latest + * Modified by Suga + */ +/* mbed TextLCD Library, for a 4-bit LCD based on HD44780 + * Copyright (c) 2007-2010, sford, http://mbed.org + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "TextOLED.h" +#include "mbed.h" + +TextOLED::TextOLED(PinName rs, PinName e, PinName d4, PinName d5, + PinName d6, PinName d7, LCDType type) : _rs(rs), + _e(e), _d(d4, d5, d6, d7), + _type(type) { + + _e = 1; + _rs = 0; // command mode + + wait_ms(100); // Wait 15ms to ensure powered up + + write4bit(0x3); // 8-bit mode + write4bit(0x0); // 8-bit mode + write4bit(0x2); // 4-bit mode + + writeCommand(0x13); // DCDC off + wait_ms(100); + + writeCommand(0x28); // Function set 001 BW N F - - + writeCommand(0x0C); // 0000 1 D C B + writeCommand(0x06); // Entry mode : 0000 01 I/D S + cls(); + writeCommand(0x02); // Home + writeCommand(0x10); // Cursor and Display Shift 0001 S/C R/L 0 0 + writeCommand(0x17); // DCDC on + wait_ms(100); +} + +void TextOLED::character(int column, int row, int c) { + int a = address(column, row); + writeCommand(a); + writeData(c); +} + +void TextOLED::cls() { + writeCommand(0x01); // cls, and set cursor to 0 + wait_ms(10); // This command takes 1.64 ms + locate(0, 0); +} + +void TextOLED::locate(int column, int row) { + _column = column; + _row = row; +} + +int TextOLED::_putc(int value) { + if (value == '\n') { + _column = 0; + _row++; + if (_row >= rows()) { + _row = 0; + } + } else { + character(_column, _row, value); + _column++; + if (_column >= columns()) { + _column = 0; + _row++; + if (_row >= rows()) { + _row = 0; + } + } + } + return value; +} + +int TextOLED::_getc() { + return -1; +} + +void TextOLED::write4bit(int value) { + _d = value; + wait_us(1); + _e = 0; + wait_us(1); + _e = 1; + wait_ms(10); +} + +void TextOLED::writeByte(int value) { + _d = value >> 4; + wait_us(1); + _e = 0; + wait_us(1); + _e = 1; + wait_us(1); + _d = value >> 0; + wait_us(1); + _e = 0; + wait_us(1); + _e = 1; + wait_us(50); +} + +void TextOLED::writeCommand(int command) { + _rs = 0; + writeByte(command); +} + +void TextOLED::writeData(int data) { + _rs = 1; + writeByte(data); +} + +int TextOLED::address(int column, int row) { + switch (_type) { + case LCD20x4: + switch (row) { + case 0: + return 0x80 + column; + case 1: + return 0xc0 + column; + case 2: + return 0x94 + column; + case 3: + return 0xd4 + column; + } + case LCD16x2B: + return 0x80 + (row * 40) + column; + case LCD16x2: + case LCD20x2: + case LCD8x2: + default: + return 0x80 + (row * 0x40) + column; + } +} + +int TextOLED::columns() { + switch (_type) { + case LCD8x2: + return 8; + case LCD20x4: + case LCD20x2: + return 20; + case LCD16x2: + case LCD16x2B: + default: + return 16; + } +} + +int TextOLED::rows() { + switch (_type) { + case LCD20x4: + return 4; + case LCD16x2: + case LCD16x2B: + case LCD20x2: + case LCD8x2: + default: + return 2; + } +}