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@2:45788bd06d4c, 2012-11-28 (annotated)

Committer:
okini3939
Date:
Wed Nov 28 03:32:30 2012 +0000
Revision:
2:45788bd06d4c
Parent:
1:df8722660f48 
fix init

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 2:45788bd06d4c 34 int i;
okini3939 0:4467cf9395fd 35
okini3939 2:45788bd06d4c 36 _rs = 0; // command mode
okini3939 0:4467cf9395fd 37 _e = 1;
okini3939 0:4467cf9395fd 38
okini3939 0:4467cf9395fd 39 wait_ms(100); // Wait 15ms to ensure powered up
okini3939 0:4467cf9395fd 40
okini3939 2:45788bd06d4c 41 for (i = 0; i < 5; i ++) {
okini3939 2:45788bd06d4c 42 write4bit(0);
okini3939 2:45788bd06d4c 43 }
okini3939 2:45788bd06d4c 44 /*
okini3939 0:4467cf9395fd 45 write4bit(0x3); // 8-bit mode
okini3939 2:45788bd06d4c 46 write4bit(0x3); // 8-bit mode
okini3939 2:45788bd06d4c 47 write4bit(0x0);
okini3939 2:45788bd06d4c 48 */
okini3939 0:4467cf9395fd 49 write4bit(0x2); // 4-bit mode
okini3939 0:4467cf9395fd 50
okini3939 0:4467cf9395fd 51 writeCommand(0x28); // Function set 001 BW N F - -
okini3939 0:4467cf9395fd 52 writeCommand(0x0C); // 0000 1 D C B
okini3939 0:4467cf9395fd 53 writeCommand(0x06); // Entry mode : 0000 01 I/D S
okini3939 0:4467cf9395fd 54 writeCommand(0x10); // Cursor and Display Shift 0001 S/C R/L 0 0
okini3939 0:4467cf9395fd 55 writeCommand(0x17); // DCDC on
okini3939 2:45788bd06d4c 56 wait_ms(10);
okini3939 2:45788bd06d4c 57 writeCommand(0x02); // Home
okini3939 2:45788bd06d4c 58 cls();
okini3939 0:4467cf9395fd 59 }
okini3939 0:4467cf9395fd 60
okini3939 0:4467cf9395fd 61 void TextOLED::character(int column, int row, int c) {
okini3939 0:4467cf9395fd 62 int a = address(column, row);
okini3939 0:4467cf9395fd 63 writeCommand(a);
okini3939 0:4467cf9395fd 64 writeData(c);
okini3939 0:4467cf9395fd 65 }
okini3939 0:4467cf9395fd 66
okini3939 0:4467cf9395fd 67 void TextOLED::cls() {
okini3939 0:4467cf9395fd 68 writeCommand(0x01); // cls, and set cursor to 0
okini3939 0:4467cf9395fd 69 wait_ms(10); // This command takes 1.64 ms
okini3939 0:4467cf9395fd 70 locate(0, 0);
okini3939 0:4467cf9395fd 71 }
okini3939 0:4467cf9395fd 72
okini3939 0:4467cf9395fd 73 void TextOLED::locate(int column, int row) {
okini3939 0:4467cf9395fd 74 _column = column;
okini3939 0:4467cf9395fd 75 _row = row;
okini3939 0:4467cf9395fd 76 }
okini3939 0:4467cf9395fd 77
okini3939 0:4467cf9395fd 78 int TextOLED::_putc(int value) {
okini3939 0:4467cf9395fd 79 if (value == '\n') {
okini3939 0:4467cf9395fd 80 _column = 0;
okini3939 0:4467cf9395fd 81 _row++;
okini3939 0:4467cf9395fd 82 if (_row >= rows()) {
okini3939 0:4467cf9395fd 83 _row = 0;
okini3939 0:4467cf9395fd 84 }
okini3939 0:4467cf9395fd 85 } else {
okini3939 0:4467cf9395fd 86 character(_column, _row, value);
okini3939 0:4467cf9395fd 87 _column++;
okini3939 0:4467cf9395fd 88 if (_column >= columns()) {
okini3939 0:4467cf9395fd 89 _column = 0;
okini3939 0:4467cf9395fd 90 _row++;
okini3939 0:4467cf9395fd 91 if (_row >= rows()) {
okini3939 0:4467cf9395fd 92 _row = 0;
okini3939 0:4467cf9395fd 93 }
okini3939 0:4467cf9395fd 94 }
okini3939 0:4467cf9395fd 95 }
okini3939 0:4467cf9395fd 96 return value;
okini3939 0:4467cf9395fd 97 }
okini3939 0:4467cf9395fd 98
okini3939 0:4467cf9395fd 99 int TextOLED::_getc() {
okini3939 0:4467cf9395fd 100 return -1;
okini3939 0:4467cf9395fd 101 }
okini3939 0:4467cf9395fd 102
okini3939 0:4467cf9395fd 103 void TextOLED::write4bit(int value) {
okini3939 2:45788bd06d4c 104 _e = 1;
okini3939 0:4467cf9395fd 105 _d = value;
okini3939 0:4467cf9395fd 106 wait_us(1);
okini3939 0:4467cf9395fd 107 _e = 0;
okini3939 0:4467cf9395fd 108 wait_ms(10);
okini3939 0:4467cf9395fd 109 }
okini3939 0:4467cf9395fd 110
okini3939 0:4467cf9395fd 111 void TextOLED::writeByte(int value) {
okini3939 2:45788bd06d4c 112 _e = 1;
okini3939 2:45788bd06d4c 113 _d = (value >> 4) & 0x0f;
okini3939 0:4467cf9395fd 114 wait_us(1);
okini3939 0:4467cf9395fd 115 _e = 0;
okini3939 0:4467cf9395fd 116 wait_us(1);
okini3939 0:4467cf9395fd 117 _e = 1;
okini3939 2:45788bd06d4c 118 _d = value & 0x0f;
okini3939 0:4467cf9395fd 119 wait_us(1);
okini3939 0:4467cf9395fd 120 _e = 0;
okini3939 0:4467cf9395fd 121 wait_us(50);
okini3939 0:4467cf9395fd 122 }
okini3939 0:4467cf9395fd 123
okini3939 0:4467cf9395fd 124 void TextOLED::writeCommand(int command) {
okini3939 0:4467cf9395fd 125 _rs = 0;
okini3939 2:45788bd06d4c 126 wait_us(1);
okini3939 0:4467cf9395fd 127 writeByte(command);
okini3939 0:4467cf9395fd 128 }
okini3939 0:4467cf9395fd 129
okini3939 0:4467cf9395fd 130 void TextOLED::writeData(int data) {
okini3939 0:4467cf9395fd 131 _rs = 1;
okini3939 2:45788bd06d4c 132 wait_us(1);
okini3939 0:4467cf9395fd 133 writeByte(data);
okini3939 0:4467cf9395fd 134 }
okini3939 0:4467cf9395fd 135
okini3939 0:4467cf9395fd 136 int TextOLED::address(int column, int row) {
okini3939 0:4467cf9395fd 137 switch (_type) {
okini3939 0:4467cf9395fd 138 case LCD20x4:
okini3939 0:4467cf9395fd 139 switch (row) {
okini3939 0:4467cf9395fd 140 case 0:
okini3939 0:4467cf9395fd 141 return 0x80 + column;
okini3939 0:4467cf9395fd 142 case 1:
okini3939 0:4467cf9395fd 143 return 0xc0 + column;
okini3939 0:4467cf9395fd 144 case 2:
okini3939 0:4467cf9395fd 145 return 0x94 + column;
okini3939 0:4467cf9395fd 146 case 3:
okini3939 0:4467cf9395fd 147 return 0xd4 + column;
okini3939 0:4467cf9395fd 148 }
okini3939 0:4467cf9395fd 149 case LCD16x2B:
okini3939 0:4467cf9395fd 150 return 0x80 + (row * 40) + column;
okini3939 0:4467cf9395fd 151 case LCD16x2:
okini3939 0:4467cf9395fd 152 case LCD20x2:
okini3939 0:4467cf9395fd 153 case LCD8x2:
okini3939 0:4467cf9395fd 154 default:
okini3939 0:4467cf9395fd 155 return 0x80 + (row * 0x40) + column;
okini3939 0:4467cf9395fd 156 }
okini3939 0:4467cf9395fd 157 }
okini3939 0:4467cf9395fd 158
okini3939 0:4467cf9395fd 159 int TextOLED::columns() {
okini3939 0:4467cf9395fd 160 switch (_type) {
okini3939 0:4467cf9395fd 161 case LCD8x2:
okini3939 0:4467cf9395fd 162 return 8;
okini3939 0:4467cf9395fd 163 case LCD20x4:
okini3939 0:4467cf9395fd 164 case LCD20x2:
okini3939 0:4467cf9395fd 165 return 20;
okini3939 0:4467cf9395fd 166 case LCD16x2:
okini3939 0:4467cf9395fd 167 case LCD16x2B:
okini3939 0:4467cf9395fd 168 default:
okini3939 0:4467cf9395fd 169 return 16;
okini3939 0:4467cf9395fd 170 }
okini3939 0:4467cf9395fd 171 }
okini3939 0:4467cf9395fd 172
okini3939 0:4467cf9395fd 173 int TextOLED::rows() {
okini3939 0:4467cf9395fd 174 switch (_type) {
okini3939 0:4467cf9395fd 175 case LCD20x4:
okini3939 0:4467cf9395fd 176 return 4;
okini3939 0:4467cf9395fd 177 case LCD16x2:
okini3939 0:4467cf9395fd 178 case LCD16x2B:
okini3939 0:4467cf9395fd 179 case LCD20x2:
okini3939 0:4467cf9395fd 180 case LCD8x2:
okini3939 0:4467cf9395fd 181 default:
okini3939 0:4467cf9395fd 182 return 2;
okini3939 0:4467cf9395fd 183 }
okini3939 0:4467cf9395fd 184 }
okini3939 1:df8722660f48 185
okini3939 1:df8722660f48 186 void TextOLED::cursor (bool flg) {
okini3939 1:df8722660f48 187 if (flg) {
okini3939 1:df8722660f48 188 writeCommand(0x0F); // 0000 1 D C B
okini3939 1:df8722660f48 189 } else {
okini3939 1:df8722660f48 190 writeCommand(0x0C); // 0000 1 D C B
okini3939 1:df8722660f48 191 }
okini3939 1:df8722660f48 192 }