Atsushi Hattori
/
20210627_Logger
hattori&ide
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?
User | Revision | Line number | New 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 | } |