Mario Simaremare / Mbed 2 deprecated g3_waterplay

Salinity and temperature sensors are implemented in classes.

Dependencies:   mbed

TextLCD.cpp@15:e112bab9aa2f, 2016-06-28 (annotated)

Committer:
mariosimaremare
Date:
Tue Jun 28 12:30:40 2016 +0000
Revision:
15:e112bab9aa2f
Parent:
3:7c648d1d8802 
Using new boxes.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mariosimaremare 3:7c648d1d8802 1 /* mbed TextLCD Library, for a 4-bit LCD based on HD44780
mariosimaremare 3:7c648d1d8802 2 * Copyright (c) 2007-2010, sford, http://mbed.org
mariosimaremare 3:7c648d1d8802 3 *
mariosimaremare 3:7c648d1d8802 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
mariosimaremare 3:7c648d1d8802 5 * of this software and associated documentation files (the "Software"), to deal
mariosimaremare 3:7c648d1d8802 6 * in the Software without restriction, including without limitation the rights
mariosimaremare 3:7c648d1d8802 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mariosimaremare 3:7c648d1d8802 8 * copies of the Software, and to permit persons to whom the Software is
mariosimaremare 3:7c648d1d8802 9 * furnished to do so, subject to the following conditions:
mariosimaremare 3:7c648d1d8802 10 *
mariosimaremare 3:7c648d1d8802 11 * The above copyright notice and this permission notice shall be included in
mariosimaremare 3:7c648d1d8802 12 * all copies or substantial portions of the Software.
mariosimaremare 3:7c648d1d8802 13 *
mariosimaremare 3:7c648d1d8802 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mariosimaremare 3:7c648d1d8802 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mariosimaremare 3:7c648d1d8802 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mariosimaremare 3:7c648d1d8802 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mariosimaremare 3:7c648d1d8802 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mariosimaremare 3:7c648d1d8802 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
mariosimaremare 3:7c648d1d8802 20 * THE SOFTWARE.
mariosimaremare 3:7c648d1d8802 21 */
mariosimaremare 3:7c648d1d8802 22
mariosimaremare 3:7c648d1d8802 23 #include "TextLCD.h"
mariosimaremare 3:7c648d1d8802 24 #include "mbed.h"
mariosimaremare 3:7c648d1d8802 25
mariosimaremare 3:7c648d1d8802 26 TextLCD::TextLCD(PinName rs, PinName e, PinName d4, PinName d5,
mariosimaremare 3:7c648d1d8802 27 PinName d6, PinName d7, LCDType type) : _rs(rs),
mariosimaremare 3:7c648d1d8802 28 _e(e), _d(d4, d5, d6, d7),
mariosimaremare 3:7c648d1d8802 29 _type(type) {
mariosimaremare 3:7c648d1d8802 30
mariosimaremare 3:7c648d1d8802 31 _e = 1;
mariosimaremare 3:7c648d1d8802 32 _rs = 0; // command mode
mariosimaremare 3:7c648d1d8802 33
mariosimaremare 3:7c648d1d8802 34 wait(0.015); // Wait 15ms to ensure powered up
mariosimaremare 3:7c648d1d8802 35
mariosimaremare 3:7c648d1d8802 36 // send "Display Settings" 3 times (Only top nibble of 0x30 as we've got 4-bit bus)
mariosimaremare 3:7c648d1d8802 37 for (int i=0; i<3; i++) {
mariosimaremare 3:7c648d1d8802 38 writeByte(0x3);
mariosimaremare 3:7c648d1d8802 39 wait(0.00164); // this command takes 1.64ms, so wait for it
mariosimaremare 3:7c648d1d8802 40 }
mariosimaremare 3:7c648d1d8802 41 writeByte(0x2); // 4-bit mode
mariosimaremare 3:7c648d1d8802 42 wait(0.000040f); // most instructions take 40us
mariosimaremare 3:7c648d1d8802 43
mariosimaremare 3:7c648d1d8802 44 writeCommand(0x28); // Function set 001 BW N F - -
mariosimaremare 3:7c648d1d8802 45 writeCommand(0x0C);
mariosimaremare 3:7c648d1d8802 46 writeCommand(0x6); // Cursor Direction and Display Shift : 0000 01 CD S (CD 0-left, 1-right S(hift) 0-no, 1-yes
mariosimaremare 3:7c648d1d8802 47 cls();
mariosimaremare 3:7c648d1d8802 48 }
mariosimaremare 3:7c648d1d8802 49
mariosimaremare 3:7c648d1d8802 50 void TextLCD::character(int column, int row, int c) {
mariosimaremare 3:7c648d1d8802 51 int a = address(column, row);
mariosimaremare 3:7c648d1d8802 52 writeCommand(a);
mariosimaremare 3:7c648d1d8802 53 writeData(c);
mariosimaremare 3:7c648d1d8802 54 }
mariosimaremare 3:7c648d1d8802 55
mariosimaremare 3:7c648d1d8802 56 void TextLCD::cls() {
mariosimaremare 3:7c648d1d8802 57 writeCommand(0x01); // cls, and set cursor to 0
mariosimaremare 3:7c648d1d8802 58 wait(0.00164f); // This command takes 1.64 ms
mariosimaremare 3:7c648d1d8802 59 locate(0, 0);
mariosimaremare 3:7c648d1d8802 60 }
mariosimaremare 3:7c648d1d8802 61
mariosimaremare 3:7c648d1d8802 62 void TextLCD::locate(int column, int row) {
mariosimaremare 3:7c648d1d8802 63 _column = column;
mariosimaremare 3:7c648d1d8802 64 _row = row;
mariosimaremare 3:7c648d1d8802 65 }
mariosimaremare 3:7c648d1d8802 66
mariosimaremare 3:7c648d1d8802 67 int TextLCD::_putc(int value) {
mariosimaremare 3:7c648d1d8802 68 if (value == '\n') {
mariosimaremare 3:7c648d1d8802 69 _column = 0;
mariosimaremare 3:7c648d1d8802 70 _row++;
mariosimaremare 3:7c648d1d8802 71 if (_row >= rows()) {
mariosimaremare 3:7c648d1d8802 72 _row = 0;
mariosimaremare 3:7c648d1d8802 73 }
mariosimaremare 3:7c648d1d8802 74 } else {
mariosimaremare 3:7c648d1d8802 75 character(_column, _row, value);
mariosimaremare 3:7c648d1d8802 76 _column++;
mariosimaremare 3:7c648d1d8802 77 if (_column >= columns()) {
mariosimaremare 3:7c648d1d8802 78 _column = 0;
mariosimaremare 3:7c648d1d8802 79 _row++;
mariosimaremare 3:7c648d1d8802 80 if (_row >= rows()) {
mariosimaremare 3:7c648d1d8802 81 _row = 0;
mariosimaremare 3:7c648d1d8802 82 }
mariosimaremare 3:7c648d1d8802 83 }
mariosimaremare 3:7c648d1d8802 84 }
mariosimaremare 3:7c648d1d8802 85 return value;
mariosimaremare 3:7c648d1d8802 86 }
mariosimaremare 3:7c648d1d8802 87
mariosimaremare 3:7c648d1d8802 88 int TextLCD::_getc() {
mariosimaremare 3:7c648d1d8802 89 return -1;
mariosimaremare 3:7c648d1d8802 90 }
mariosimaremare 3:7c648d1d8802 91
mariosimaremare 3:7c648d1d8802 92 void TextLCD::writeByte(int value) {
mariosimaremare 3:7c648d1d8802 93 _d = value >> 4;
mariosimaremare 3:7c648d1d8802 94 wait(0.000040f); // most instructions take 40us
mariosimaremare 3:7c648d1d8802 95 _e = 0;
mariosimaremare 3:7c648d1d8802 96 wait(0.000040f);
mariosimaremare 3:7c648d1d8802 97 _e = 1;
mariosimaremare 3:7c648d1d8802 98 _d = value >> 0;
mariosimaremare 3:7c648d1d8802 99 wait(0.000040f);
mariosimaremare 3:7c648d1d8802 100 _e = 0;
mariosimaremare 3:7c648d1d8802 101 wait(0.000040f); // most instructions take 40us
mariosimaremare 3:7c648d1d8802 102 _e = 1;
mariosimaremare 3:7c648d1d8802 103 }
mariosimaremare 3:7c648d1d8802 104
mariosimaremare 3:7c648d1d8802 105 void TextLCD::writeCommand(int command) {
mariosimaremare 3:7c648d1d8802 106 _rs = 0;
mariosimaremare 3:7c648d1d8802 107 writeByte(command);
mariosimaremare 3:7c648d1d8802 108 }
mariosimaremare 3:7c648d1d8802 109
mariosimaremare 3:7c648d1d8802 110 void TextLCD::writeData(int data) {
mariosimaremare 3:7c648d1d8802 111 _rs = 1;
mariosimaremare 3:7c648d1d8802 112 writeByte(data);
mariosimaremare 3:7c648d1d8802 113 }
mariosimaremare 3:7c648d1d8802 114
mariosimaremare 3:7c648d1d8802 115 int TextLCD::address(int column, int row) {
mariosimaremare 3:7c648d1d8802 116 switch (_type) {
mariosimaremare 3:7c648d1d8802 117 case LCD20x4:
mariosimaremare 3:7c648d1d8802 118 switch (row) {
mariosimaremare 3:7c648d1d8802 119 case 0:
mariosimaremare 3:7c648d1d8802 120 return 0x80 + column;
mariosimaremare 3:7c648d1d8802 121 case 1:
mariosimaremare 3:7c648d1d8802 122 return 0xc0 + column;
mariosimaremare 3:7c648d1d8802 123 case 2:
mariosimaremare 3:7c648d1d8802 124 return 0x94 + column;
mariosimaremare 3:7c648d1d8802 125 case 3:
mariosimaremare 3:7c648d1d8802 126 return 0xd4 + column;
mariosimaremare 3:7c648d1d8802 127 }
mariosimaremare 3:7c648d1d8802 128 case LCD16x2B:
mariosimaremare 3:7c648d1d8802 129 return 0x80 + (row * 40) + column;
mariosimaremare 3:7c648d1d8802 130 case LCD16x2:
mariosimaremare 3:7c648d1d8802 131 case LCD20x2:
mariosimaremare 3:7c648d1d8802 132 default:
mariosimaremare 3:7c648d1d8802 133 return 0x80 + (row * 0x40) + column;
mariosimaremare 3:7c648d1d8802 134 }
mariosimaremare 3:7c648d1d8802 135 }
mariosimaremare 3:7c648d1d8802 136
mariosimaremare 3:7c648d1d8802 137 int TextLCD::columns() {
mariosimaremare 3:7c648d1d8802 138 switch (_type) {
mariosimaremare 3:7c648d1d8802 139 case LCD20x4:
mariosimaremare 3:7c648d1d8802 140 case LCD20x2:
mariosimaremare 3:7c648d1d8802 141 return 20;
mariosimaremare 3:7c648d1d8802 142 case LCD16x2:
mariosimaremare 3:7c648d1d8802 143 case LCD16x2B:
mariosimaremare 3:7c648d1d8802 144 default:
mariosimaremare 3:7c648d1d8802 145 return 16;
mariosimaremare 3:7c648d1d8802 146 }
mariosimaremare 3:7c648d1d8802 147 }
mariosimaremare 3:7c648d1d8802 148
mariosimaremare 3:7c648d1d8802 149 int TextLCD::rows() {
mariosimaremare 3:7c648d1d8802 150 switch (_type) {
mariosimaremare 3:7c648d1d8802 151 case LCD20x4:
mariosimaremare 3:7c648d1d8802 152 return 4;
mariosimaremare 3:7c648d1d8802 153 case LCD16x2:
mariosimaremare 3:7c648d1d8802 154 case LCD16x2B:
mariosimaremare 3:7c648d1d8802 155 case LCD20x2:
mariosimaremare 3:7c648d1d8802 156 default:
mariosimaremare 3:7c648d1d8802 157 return 2;
mariosimaremare 3:7c648d1d8802 158 }
mariosimaremare 3:7c648d1d8802 159 }
mariosimaremare 3:7c648d1d8802 160