Aravind Vadali / AVEncoder

Simple Encoder Class. As of now, does not take direction into account

Dependents:   PID_Test

AVEncoder.cpp@0:a32ab75adcad, 2015-11-03 (annotated)

Committer:
aravindsv
Date:
Tue Nov 03 06:12:30 2015 +0000
Revision:
0:a32ab75adcad
Simple Encoder class that does not take direction into account

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aravindsv 0:a32ab75adcad 1 /**
aravindsv 0:a32ab75adcad 2 * @author Aravind Vadali
aravindsv 0:a32ab75adcad 3 *
aravindsv 0:a32ab75adcad 4 * @section LICENSE
aravindsv 0:a32ab75adcad 5 *
aravindsv 0:a32ab75adcad 6 * Copyright (c) 2015
aravindsv 0:a32ab75adcad 7 *
aravindsv 0:a32ab75adcad 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
aravindsv 0:a32ab75adcad 9 * of this software and associated documentation files (the "Software"), to deal
aravindsv 0:a32ab75adcad 10 * in the Software without restriction, including without limitation the rights
aravindsv 0:a32ab75adcad 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
aravindsv 0:a32ab75adcad 12 * copies of the Software, and to permit persons to whom the Software is
aravindsv 0:a32ab75adcad 13 * furnished to do so, subject to the following conditions:
aravindsv 0:a32ab75adcad 14 *
aravindsv 0:a32ab75adcad 15 * The above copyright notice and this permission notice shall be included in
aravindsv 0:a32ab75adcad 16 * all copies or substantial portions of the Software.
aravindsv 0:a32ab75adcad 17 *
aravindsv 0:a32ab75adcad 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
aravindsv 0:a32ab75adcad 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
aravindsv 0:a32ab75adcad 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
aravindsv 0:a32ab75adcad 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
aravindsv 0:a32ab75adcad 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
aravindsv 0:a32ab75adcad 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
aravindsv 0:a32ab75adcad 24 * THE SOFTWARE.
aravindsv 0:a32ab75adcad 25 *
aravindsv 0:a32ab75adcad 26 * @section DESCRIPTION
aravindsv 0:a32ab75adcad 27 * Because the QEI library is buggy as !@#$
aravindsv 0:a32ab75adcad 28 * Instead of even trying to determine direction, this will just give number of
aravindsv 0:a32ab75adcad 29 * pulses. A more fleshed out solution where direction is taken into account can
aravindsv 0:a32ab75adcad 30 * be worked out later.
aravindsv 0:a32ab75adcad 31 **/
aravindsv 0:a32ab75adcad 32
aravindsv 0:a32ab75adcad 33 #include "AVEncoder.h"
aravindsv 0:a32ab75adcad 34
aravindsv 0:a32ab75adcad 35
aravindsv 0:a32ab75adcad 36 AVEncoder::AVEncoder(PinName channelA, PinName channelB) : chanA(channelA), chanB(channelB) {
aravindsv 0:a32ab75adcad 37 m_pulses = 0;
aravindsv 0:a32ab75adcad 38 chanA.rise(this, &AVEncoder::incrementCount);
aravindsv 0:a32ab75adcad 39 chanA.fall(this, &AVEncoder::incrementCount);
aravindsv 0:a32ab75adcad 40 chanB.rise(this, &AVEncoder::incrementCount);
aravindsv 0:a32ab75adcad 41 chanB.fall(this, &AVEncoder::incrementCount);
aravindsv 0:a32ab75adcad 42 }
aravindsv 0:a32ab75adcad 43
aravindsv 0:a32ab75adcad 44 void AVEncoder::reset() {
aravindsv 0:a32ab75adcad 45 m_pulses = 0;
aravindsv 0:a32ab75adcad 46 }
aravindsv 0:a32ab75adcad 47
aravindsv 0:a32ab75adcad 48 unsigned long int AVEncoder::getPulses() {
aravindsv 0:a32ab75adcad 49 return m_pulses;
aravindsv 0:a32ab75adcad 50 }
aravindsv 0:a32ab75adcad 51
aravindsv 0:a32ab75adcad 52 void AVEncoder::incrementCount() {
aravindsv 0:a32ab75adcad 53 m_pulses++;
aravindsv 0:a32ab75adcad 54 }