Suga koubou / TextOLED

mbed TextOLED Library, for a 4-bit LCD based on Winstar WEH000000 series Originl: http://mbed.org/users/simon/libraries/TextLCD/latest 共立電子 デジット の OLEDモジュール 4bitモード用

Dependents:   Dawson_Controller allsystem_2

TextOLED.cpp@1:df8722660f48, 2012-07-31 (annotated)

Committer:
okini3939
Date:
Tue Jul 31 04:39:41 2012 +0000
Revision:
1:df8722660f48
Parent:
0:4467cf9395fd
Child:
2:45788bd06d4c
add cursor()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 0:4467cf9395fd 1 /* mbed TextOLED Library, for a 4-bit LCD based on Winstar WEH000000 series
okini3939 0:4467cf9395fd 2 * Originl: http://mbed.org/users/simon/libraries/TextLCD/latest
okini3939 0:4467cf9395fd 3 * Modified by Suga
okini3939 0:4467cf9395fd 4 */
okini3939 0:4467cf9395fd 5 /* mbed TextLCD Library, for a 4-bit LCD based on HD44780
okini3939 0:4467cf9395fd 6 * Copyright (c) 2007-2010, sford, http://mbed.org
okini3939 0:4467cf9395fd 7 *
okini3939 0:4467cf9395fd 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
okini3939 0:4467cf9395fd 9 * of this software and associated documentation files (the "Software"), to deal
okini3939 0:4467cf9395fd 10 * in the Software without restriction, including without limitation the rights
okini3939 0:4467cf9395fd 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
okini3939 0:4467cf9395fd 12 * copies of the Software, and to permit persons to whom the Software is
okini3939 0:4467cf9395fd 13 * furnished to do so, subject to the following conditions:
okini3939 0:4467cf9395fd 14 *
okini3939 0:4467cf9395fd 15 * The above copyright notice and this permission notice shall be included in
okini3939 0:4467cf9395fd 16 * all copies or substantial portions of the Software.
okini3939 0:4467cf9395fd 17 *
okini3939 0:4467cf9395fd 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
okini3939 0:4467cf9395fd 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
okini3939 0:4467cf9395fd 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
okini3939 0:4467cf9395fd 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
okini3939 0:4467cf9395fd 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
okini3939 0:4467cf9395fd 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
okini3939 0:4467cf9395fd 24 * THE SOFTWARE.
okini3939 0:4467cf9395fd 25 */
okini3939 0:4467cf9395fd 26
okini3939 0:4467cf9395fd 27 #include "TextOLED.h"
okini3939 0:4467cf9395fd 28 #include "mbed.h"
okini3939 0:4467cf9395fd 29
okini3939 0:4467cf9395fd 30 TextOLED::TextOLED(PinName rs, PinName e, PinName d4, PinName d5,
okini3939 0:4467cf9395fd 31 PinName d6, PinName d7, LCDType type) : _rs(rs),
okini3939 0:4467cf9395fd 32 _e(e), _d(d4, d5, d6, d7),
okini3939 0:4467cf9395fd 33 _type(type) {
okini3939 0:4467cf9395fd 34
okini3939 0:4467cf9395fd 35 _e = 1;
okini3939 0:4467cf9395fd 36 _rs = 0; // command mode
okini3939 0:4467cf9395fd 37
okini3939 0:4467cf9395fd 38 wait_ms(100); // Wait 15ms to ensure powered up
okini3939 0:4467cf9395fd 39
okini3939 0:4467cf9395fd 40 write4bit(0x3); // 8-bit mode
okini3939 0:4467cf9395fd 41 write4bit(0x0); // 8-bit mode
okini3939 0:4467cf9395fd 42 write4bit(0x2); // 4-bit mode
okini3939 0:4467cf9395fd 43
okini3939 0:4467cf9395fd 44 writeCommand(0x13); // DCDC off
okini3939 0:4467cf9395fd 45 wait_ms(100);
okini3939 0:4467cf9395fd 46
okini3939 0:4467cf9395fd 47 writeCommand(0x28); // Function set 001 BW N F - -
okini3939 0:4467cf9395fd 48 writeCommand(0x0C); // 0000 1 D C B
okini3939 0:4467cf9395fd 49 writeCommand(0x06); // Entry mode : 0000 01 I/D S
okini3939 0:4467cf9395fd 50 cls();
okini3939 0:4467cf9395fd 51 writeCommand(0x02); // Home
okini3939 0:4467cf9395fd 52 writeCommand(0x10); // Cursor and Display Shift 0001 S/C R/L 0 0
okini3939 0:4467cf9395fd 53 writeCommand(0x17); // DCDC on
okini3939 0:4467cf9395fd 54 wait_ms(100);
okini3939 0:4467cf9395fd 55 }
okini3939 0:4467cf9395fd 56
okini3939 0:4467cf9395fd 57 void TextOLED::character(int column, int row, int c) {
okini3939 0:4467cf9395fd 58 int a = address(column, row);
okini3939 0:4467cf9395fd 59 writeCommand(a);
okini3939 0:4467cf9395fd 60 writeData(c);
okini3939 0:4467cf9395fd 61 }
okini3939 0:4467cf9395fd 62
okini3939 0:4467cf9395fd 63 void TextOLED::cls() {
okini3939 0:4467cf9395fd 64 writeCommand(0x01); // cls, and set cursor to 0
okini3939 0:4467cf9395fd 65 wait_ms(10); // This command takes 1.64 ms
okini3939 0:4467cf9395fd 66 locate(0, 0);
okini3939 0:4467cf9395fd 67 }
okini3939 0:4467cf9395fd 68
okini3939 0:4467cf9395fd 69 void TextOLED::locate(int column, int row) {
okini3939 0:4467cf9395fd 70 _column = column;
okini3939 0:4467cf9395fd 71 _row = row;
okini3939 0:4467cf9395fd 72 }
okini3939 0:4467cf9395fd 73
okini3939 0:4467cf9395fd 74 int TextOLED::_putc(int value) {
okini3939 0:4467cf9395fd 75 if (value == '\n') {
okini3939 0:4467cf9395fd 76 _column = 0;
okini3939 0:4467cf9395fd 77 _row++;
okini3939 0:4467cf9395fd 78 if (_row >= rows()) {
okini3939 0:4467cf9395fd 79 _row = 0;
okini3939 0:4467cf9395fd 80 }
okini3939 0:4467cf9395fd 81 } else {
okini3939 0:4467cf9395fd 82 character(_column, _row, value);
okini3939 0:4467cf9395fd 83 _column++;
okini3939 0:4467cf9395fd 84 if (_column >= columns()) {
okini3939 0:4467cf9395fd 85 _column = 0;
okini3939 0:4467cf9395fd 86 _row++;
okini3939 0:4467cf9395fd 87 if (_row >= rows()) {
okini3939 0:4467cf9395fd 88 _row = 0;
okini3939 0:4467cf9395fd 89 }
okini3939 0:4467cf9395fd 90 }
okini3939 0:4467cf9395fd 91 }
okini3939 0:4467cf9395fd 92 return value;
okini3939 0:4467cf9395fd 93 }
okini3939 0:4467cf9395fd 94
okini3939 0:4467cf9395fd 95 int TextOLED::_getc() {
okini3939 0:4467cf9395fd 96 return -1;
okini3939 0:4467cf9395fd 97 }
okini3939 0:4467cf9395fd 98
okini3939 0:4467cf9395fd 99 void TextOLED::write4bit(int value) {
okini3939 0:4467cf9395fd 100 _d = value;
okini3939 0:4467cf9395fd 101 wait_us(1);
okini3939 0:4467cf9395fd 102 _e = 0;
okini3939 0:4467cf9395fd 103 wait_us(1);
okini3939 0:4467cf9395fd 104 _e = 1;
okini3939 0:4467cf9395fd 105 wait_ms(10);
okini3939 0:4467cf9395fd 106 }
okini3939 0:4467cf9395fd 107
okini3939 0:4467cf9395fd 108 void TextOLED::writeByte(int value) {
okini3939 0:4467cf9395fd 109 _d = value >> 4;
okini3939 0:4467cf9395fd 110 wait_us(1);
okini3939 0:4467cf9395fd 111 _e = 0;
okini3939 0:4467cf9395fd 112 wait_us(1);
okini3939 0:4467cf9395fd 113 _e = 1;
okini3939 0:4467cf9395fd 114 wait_us(1);
okini3939 0:4467cf9395fd 115 _d = value >> 0;
okini3939 0:4467cf9395fd 116 wait_us(1);
okini3939 0:4467cf9395fd 117 _e = 0;
okini3939 0:4467cf9395fd 118 wait_us(1);
okini3939 0:4467cf9395fd 119 _e = 1;
okini3939 0:4467cf9395fd 120 wait_us(50);
okini3939 0:4467cf9395fd 121 }
okini3939 0:4467cf9395fd 122
okini3939 0:4467cf9395fd 123 void TextOLED::writeCommand(int command) {
okini3939 0:4467cf9395fd 124 _rs = 0;
okini3939 0:4467cf9395fd 125 writeByte(command);
okini3939 0:4467cf9395fd 126 }
okini3939 0:4467cf9395fd 127
okini3939 0:4467cf9395fd 128 void TextOLED::writeData(int data) {
okini3939 0:4467cf9395fd 129 _rs = 1;
okini3939 0:4467cf9395fd 130 writeByte(data);
okini3939 0:4467cf9395fd 131 }
okini3939 0:4467cf9395fd 132
okini3939 0:4467cf9395fd 133 int TextOLED::address(int column, int row) {
okini3939 0:4467cf9395fd 134 switch (_type) {
okini3939 0:4467cf9395fd 135 case LCD20x4:
okini3939 0:4467cf9395fd 136 switch (row) {
okini3939 0:4467cf9395fd 137 case 0:
okini3939 0:4467cf9395fd 138 return 0x80 + column;
okini3939 0:4467cf9395fd 139 case 1:
okini3939 0:4467cf9395fd 140 return 0xc0 + column;
okini3939 0:4467cf9395fd 141 case 2:
okini3939 0:4467cf9395fd 142 return 0x94 + column;
okini3939 0:4467cf9395fd 143 case 3:
okini3939 0:4467cf9395fd 144 return 0xd4 + column;
okini3939 0:4467cf9395fd 145 }
okini3939 0:4467cf9395fd 146 case LCD16x2B:
okini3939 0:4467cf9395fd 147 return 0x80 + (row * 40) + column;
okini3939 0:4467cf9395fd 148 case LCD16x2:
okini3939 0:4467cf9395fd 149 case LCD20x2:
okini3939 0:4467cf9395fd 150 case LCD8x2:
okini3939 0:4467cf9395fd 151 default:
okini3939 0:4467cf9395fd 152 return 0x80 + (row * 0x40) + column;
okini3939 0:4467cf9395fd 153 }
okini3939 0:4467cf9395fd 154 }
okini3939 0:4467cf9395fd 155
okini3939 0:4467cf9395fd 156 int TextOLED::columns() {
okini3939 0:4467cf9395fd 157 switch (_type) {
okini3939 0:4467cf9395fd 158 case LCD8x2:
okini3939 0:4467cf9395fd 159 return 8;
okini3939 0:4467cf9395fd 160 case LCD20x4:
okini3939 0:4467cf9395fd 161 case LCD20x2:
okini3939 0:4467cf9395fd 162 return 20;
okini3939 0:4467cf9395fd 163 case LCD16x2:
okini3939 0:4467cf9395fd 164 case LCD16x2B:
okini3939 0:4467cf9395fd 165 default:
okini3939 0:4467cf9395fd 166 return 16;
okini3939 0:4467cf9395fd 167 }
okini3939 0:4467cf9395fd 168 }
okini3939 0:4467cf9395fd 169
okini3939 0:4467cf9395fd 170 int TextOLED::rows() {
okini3939 0:4467cf9395fd 171 switch (_type) {
okini3939 0:4467cf9395fd 172 case LCD20x4:
okini3939 0:4467cf9395fd 173 return 4;
okini3939 0:4467cf9395fd 174 case LCD16x2:
okini3939 0:4467cf9395fd 175 case LCD16x2B:
okini3939 0:4467cf9395fd 176 case LCD20x2:
okini3939 0:4467cf9395fd 177 case LCD8x2:
okini3939 0:4467cf9395fd 178 default:
okini3939 0:4467cf9395fd 179 return 2;
okini3939 0:4467cf9395fd 180 }
okini3939 0:4467cf9395fd 181 }
okini3939 1:df8722660f48 182
okini3939 1:df8722660f48 183 void TextOLED::cursor (bool flg) {
okini3939 1:df8722660f48 184 if (flg) {
okini3939 1:df8722660f48 185 writeCommand(0x0F); // 0000 1 D C B
okini3939 1:df8722660f48 186 } else {
okini3939 1:df8722660f48 187 writeCommand(0x0C); // 0000 1 D C B
okini3939 1:df8722660f48 188 }
okini3939 1:df8722660f48 189 }