Atsushi Hattori / Mbed 2 deprecated 20210627_Logger

hattori&ide

Dependencies:   mbed

TextOLED/TextOLED.cpp@0:f77369cabd75, 18 months ago (annotated)

Committer:
hattori_atsushi
Date:
Sun Dec 18 08:16:01 2022 +0000
Revision:
0:f77369cabd75
hattori

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hattori_atsushi 0:f77369cabd75 1 /* mbed TextOLED Library, for a 4-bit LCD based on Winstar WEH000000 series
hattori_atsushi 0:f77369cabd75 2 * Originl: http://mbed.org/users/simon/libraries/TextLCD/latest
hattori_atsushi 0:f77369cabd75 3 * Modified by Suga
hattori_atsushi 0:f77369cabd75 4 */
hattori_atsushi 0:f77369cabd75 5 /* mbed TextLCD Library, for a 4-bit LCD based on HD44780
hattori_atsushi 0:f77369cabd75 6 * Copyright (c) 2007-2010, sford, http://mbed.org
hattori_atsushi 0:f77369cabd75 7 *
hattori_atsushi 0:f77369cabd75 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
hattori_atsushi 0:f77369cabd75 9 * of this software and associated documentation files (the "Software"), to deal
hattori_atsushi 0:f77369cabd75 10 * in the Software without restriction, including without limitation the rights
hattori_atsushi 0:f77369cabd75 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hattori_atsushi 0:f77369cabd75 12 * copies of the Software, and to permit persons to whom the Software is
hattori_atsushi 0:f77369cabd75 13 * furnished to do so, subject to the following conditions:
hattori_atsushi 0:f77369cabd75 14 *
hattori_atsushi 0:f77369cabd75 15 * The above copyright notice and this permission notice shall be included in
hattori_atsushi 0:f77369cabd75 16 * all copies or substantial portions of the Software.
hattori_atsushi 0:f77369cabd75 17 *
hattori_atsushi 0:f77369cabd75 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hattori_atsushi 0:f77369cabd75 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hattori_atsushi 0:f77369cabd75 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hattori_atsushi 0:f77369cabd75 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hattori_atsushi 0:f77369cabd75 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hattori_atsushi 0:f77369cabd75 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hattori_atsushi 0:f77369cabd75 24 * THE SOFTWARE.
hattori_atsushi 0:f77369cabd75 25 */
hattori_atsushi 0:f77369cabd75 26
hattori_atsushi 0:f77369cabd75 27 #include "TextOLED.h"
hattori_atsushi 0:f77369cabd75 28 #include "mbed.h"
hattori_atsushi 0:f77369cabd75 29
hattori_atsushi 0:f77369cabd75 30 TextOLED::TextOLED(PinName rs, PinName e, PinName d4, PinName d5,
hattori_atsushi 0:f77369cabd75 31 PinName d6, PinName d7, LCDType type) : _rs(rs),
hattori_atsushi 0:f77369cabd75 32 _e(e), _d(d4, d5, d6, d7),
hattori_atsushi 0:f77369cabd75 33 _type(type) {
hattori_atsushi 0:f77369cabd75 34 int i;
hattori_atsushi 0:f77369cabd75 35
hattori_atsushi 0:f77369cabd75 36 _rs = 0; // command mode
hattori_atsushi 0:f77369cabd75 37 _e = 1;
hattori_atsushi 0:f77369cabd75 38
hattori_atsushi 0:f77369cabd75 39 wait_ms(100); // Wait 15ms to ensure powered up
hattori_atsushi 0:f77369cabd75 40
hattori_atsushi 0:f77369cabd75 41 for (i = 0; i < 5; i ++) {
hattori_atsushi 0:f77369cabd75 42 write4bit(0);
hattori_atsushi 0:f77369cabd75 43 }
hattori_atsushi 0:f77369cabd75 44 /*
hattori_atsushi 0:f77369cabd75 45 write4bit(0x3); // 8-bit mode
hattori_atsushi 0:f77369cabd75 46 write4bit(0x3); // 8-bit mode
hattori_atsushi 0:f77369cabd75 47 write4bit(0x0);
hattori_atsushi 0:f77369cabd75 48 */
hattori_atsushi 0:f77369cabd75 49 write4bit(0x2); // 4-bit mode
hattori_atsushi 0:f77369cabd75 50
hattori_atsushi 0:f77369cabd75 51 writeCommand(0x28); // Function set 001 BW N F - -
hattori_atsushi 0:f77369cabd75 52 writeCommand(0x0C); // 0000 1 D C B
hattori_atsushi 0:f77369cabd75 53 writeCommand(0x06); // Entry mode : 0000 01 I/D S
hattori_atsushi 0:f77369cabd75 54 writeCommand(0x10); // Cursor and Display Shift 0001 S/C R/L 0 0
hattori_atsushi 0:f77369cabd75 55 writeCommand(0x17); // DCDC on
hattori_atsushi 0:f77369cabd75 56 wait_ms(10);
hattori_atsushi 0:f77369cabd75 57 writeCommand(0x02); // Home
hattori_atsushi 0:f77369cabd75 58 cls();
hattori_atsushi 0:f77369cabd75 59 }
hattori_atsushi 0:f77369cabd75 60
hattori_atsushi 0:f77369cabd75 61 void TextOLED::character(int column, int row, int c) {
hattori_atsushi 0:f77369cabd75 62 int a = address(column, row);
hattori_atsushi 0:f77369cabd75 63 writeCommand(a);
hattori_atsushi 0:f77369cabd75 64 writeData(c);
hattori_atsushi 0:f77369cabd75 65 }
hattori_atsushi 0:f77369cabd75 66
hattori_atsushi 0:f77369cabd75 67 void TextOLED::cls() {
hattori_atsushi 0:f77369cabd75 68 writeCommand(0x01); // cls, and set cursor to 0
hattori_atsushi 0:f77369cabd75 69 wait_ms(10); // This command takes 1.64 ms
hattori_atsushi 0:f77369cabd75 70 locate(0, 0);
hattori_atsushi 0:f77369cabd75 71 }
hattori_atsushi 0:f77369cabd75 72
hattori_atsushi 0:f77369cabd75 73 void TextOLED::locate(int column, int row) {
hattori_atsushi 0:f77369cabd75 74 _column = column;
hattori_atsushi 0:f77369cabd75 75 _row = row;
hattori_atsushi 0:f77369cabd75 76 }
hattori_atsushi 0:f77369cabd75 77
hattori_atsushi 0:f77369cabd75 78 int TextOLED::_putc(int value) {
hattori_atsushi 0:f77369cabd75 79 if (value == '\n') {
hattori_atsushi 0:f77369cabd75 80 _column = 0;
hattori_atsushi 0:f77369cabd75 81 _row++;
hattori_atsushi 0:f77369cabd75 82 if (_row >= rows()) {
hattori_atsushi 0:f77369cabd75 83 _row = 0;
hattori_atsushi 0:f77369cabd75 84 }
hattori_atsushi 0:f77369cabd75 85 } else {
hattori_atsushi 0:f77369cabd75 86 character(_column, _row, value);
hattori_atsushi 0:f77369cabd75 87 _column++;
hattori_atsushi 0:f77369cabd75 88 if (_column >= columns()) {
hattori_atsushi 0:f77369cabd75 89 _column = 0;
hattori_atsushi 0:f77369cabd75 90 _row++;
hattori_atsushi 0:f77369cabd75 91 if (_row >= rows()) {
hattori_atsushi 0:f77369cabd75 92 _row = 0;
hattori_atsushi 0:f77369cabd75 93 }
hattori_atsushi 0:f77369cabd75 94 }
hattori_atsushi 0:f77369cabd75 95 }
hattori_atsushi 0:f77369cabd75 96 return value;
hattori_atsushi 0:f77369cabd75 97 }
hattori_atsushi 0:f77369cabd75 98
hattori_atsushi 0:f77369cabd75 99 int TextOLED::_getc() {
hattori_atsushi 0:f77369cabd75 100 return -1;
hattori_atsushi 0:f77369cabd75 101 }
hattori_atsushi 0:f77369cabd75 102
hattori_atsushi 0:f77369cabd75 103 void TextOLED::write4bit(int value) {
hattori_atsushi 0:f77369cabd75 104 _e = 1;
hattori_atsushi 0:f77369cabd75 105 _d = value;
hattori_atsushi 0:f77369cabd75 106 wait_us(1);
hattori_atsushi 0:f77369cabd75 107 _e = 0;
hattori_atsushi 0:f77369cabd75 108 wait_ms(10);
hattori_atsushi 0:f77369cabd75 109 }
hattori_atsushi 0:f77369cabd75 110
hattori_atsushi 0:f77369cabd75 111 void TextOLED::writeByte(int value) {
hattori_atsushi 0:f77369cabd75 112 _e = 1;
hattori_atsushi 0:f77369cabd75 113 _d = (value >> 4) & 0x0f;
hattori_atsushi 0:f77369cabd75 114 wait_us(1);
hattori_atsushi 0:f77369cabd75 115 _e = 0;
hattori_atsushi 0:f77369cabd75 116 wait_us(1);
hattori_atsushi 0:f77369cabd75 117 _e = 1;
hattori_atsushi 0:f77369cabd75 118 _d = value & 0x0f;
hattori_atsushi 0:f77369cabd75 119 wait_us(1);
hattori_atsushi 0:f77369cabd75 120 _e = 0;
hattori_atsushi 0:f77369cabd75 121 wait_us(50);
hattori_atsushi 0:f77369cabd75 122 }
hattori_atsushi 0:f77369cabd75 123
hattori_atsushi 0:f77369cabd75 124 void TextOLED::writeCommand(int command) {
hattori_atsushi 0:f77369cabd75 125 _rs = 0;
hattori_atsushi 0:f77369cabd75 126 wait_us(1);
hattori_atsushi 0:f77369cabd75 127 writeByte(command);
hattori_atsushi 0:f77369cabd75 128 }
hattori_atsushi 0:f77369cabd75 129
hattori_atsushi 0:f77369cabd75 130 void TextOLED::writeData(int data) {
hattori_atsushi 0:f77369cabd75 131 _rs = 1;
hattori_atsushi 0:f77369cabd75 132 wait_us(1);
hattori_atsushi 0:f77369cabd75 133 writeByte(data);
hattori_atsushi 0:f77369cabd75 134 }
hattori_atsushi 0:f77369cabd75 135
hattori_atsushi 0:f77369cabd75 136 int TextOLED::address(int column, int row) {
hattori_atsushi 0:f77369cabd75 137 switch (_type) {
hattori_atsushi 0:f77369cabd75 138 case LCD20x4:
hattori_atsushi 0:f77369cabd75 139 switch (row) {
hattori_atsushi 0:f77369cabd75 140 case 0:
hattori_atsushi 0:f77369cabd75 141 return 0x80 + column;
hattori_atsushi 0:f77369cabd75 142 case 1:
hattori_atsushi 0:f77369cabd75 143 return 0xc0 + column;
hattori_atsushi 0:f77369cabd75 144 case 2:
hattori_atsushi 0:f77369cabd75 145 return 0x94 + column;
hattori_atsushi 0:f77369cabd75 146 case 3:
hattori_atsushi 0:f77369cabd75 147 return 0xd4 + column;
hattori_atsushi 0:f77369cabd75 148 }
hattori_atsushi 0:f77369cabd75 149 case LCD16x2B:
hattori_atsushi 0:f77369cabd75 150 return 0x80 + (row * 40) + column;
hattori_atsushi 0:f77369cabd75 151 case LCD16x2:
hattori_atsushi 0:f77369cabd75 152 case LCD20x2:
hattori_atsushi 0:f77369cabd75 153 case LCD8x2:
hattori_atsushi 0:f77369cabd75 154 default:
hattori_atsushi 0:f77369cabd75 155 return 0x80 + (row * 0x40) + column;
hattori_atsushi 0:f77369cabd75 156 }
hattori_atsushi 0:f77369cabd75 157 }
hattori_atsushi 0:f77369cabd75 158
hattori_atsushi 0:f77369cabd75 159 int TextOLED::columns() {
hattori_atsushi 0:f77369cabd75 160 switch (_type) {
hattori_atsushi 0:f77369cabd75 161 case LCD8x2:
hattori_atsushi 0:f77369cabd75 162 return 8;
hattori_atsushi 0:f77369cabd75 163 case LCD20x4:
hattori_atsushi 0:f77369cabd75 164 case LCD20x2:
hattori_atsushi 0:f77369cabd75 165 return 20;
hattori_atsushi 0:f77369cabd75 166 case LCD16x2:
hattori_atsushi 0:f77369cabd75 167 case LCD16x2B:
hattori_atsushi 0:f77369cabd75 168 default:
hattori_atsushi 0:f77369cabd75 169 return 16;
hattori_atsushi 0:f77369cabd75 170 }
hattori_atsushi 0:f77369cabd75 171 }
hattori_atsushi 0:f77369cabd75 172
hattori_atsushi 0:f77369cabd75 173 int TextOLED::rows() {
hattori_atsushi 0:f77369cabd75 174 switch (_type) {
hattori_atsushi 0:f77369cabd75 175 case LCD20x4:
hattori_atsushi 0:f77369cabd75 176 return 4;
hattori_atsushi 0:f77369cabd75 177 case LCD16x2:
hattori_atsushi 0:f77369cabd75 178 case LCD16x2B:
hattori_atsushi 0:f77369cabd75 179 case LCD20x2:
hattori_atsushi 0:f77369cabd75 180 case LCD8x2:
hattori_atsushi 0:f77369cabd75 181 default:
hattori_atsushi 0:f77369cabd75 182 return 2;
hattori_atsushi 0:f77369cabd75 183 }
hattori_atsushi 0:f77369cabd75 184 }
hattori_atsushi 0:f77369cabd75 185
hattori_atsushi 0:f77369cabd75 186 void TextOLED::cursor (bool flg) {
hattori_atsushi 0:f77369cabd75 187 if (flg) {
hattori_atsushi 0:f77369cabd75 188 writeCommand(0x0F); // 0000 1 D C B
hattori_atsushi 0:f77369cabd75 189 } else {
hattori_atsushi 0:f77369cabd75 190 writeCommand(0x0C); // 0000 1 D C B
hattori_atsushi 0:f77369cabd75 191 }
hattori_atsushi 0:f77369cabd75 192 }