Simple Encoder Class. As of now, does not take direction into account
Revision 0:a32ab75adcad, committed 2015-11-03
- Comitter:
- aravindsv
- Date:
- Tue Nov 03 06:12:30 2015 +0000
- Commit message:
- Simple Encoder class that does not take direction into account
Changed in this revision
AVEncoder.cpp | Show annotated file Show diff for this revision Revisions of this file |
AVEncoder.h | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/AVEncoder.cpp Tue Nov 03 06:12:30 2015 +0000 @@ -0,0 +1,54 @@ +/** + * @author Aravind Vadali + * + * @section LICENSE + * + * Copyright (c) 2015 + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @section DESCRIPTION + * Because the QEI library is buggy as !@#$ + * Instead of even trying to determine direction, this will just give number of + * pulses. A more fleshed out solution where direction is taken into account can + * be worked out later. + **/ + +#include "AVEncoder.h" + + +AVEncoder::AVEncoder(PinName channelA, PinName channelB) : chanA(channelA), chanB(channelB) { + m_pulses = 0; + chanA.rise(this, &AVEncoder::incrementCount); + chanA.fall(this, &AVEncoder::incrementCount); + chanB.rise(this, &AVEncoder::incrementCount); + chanB.fall(this, &AVEncoder::incrementCount); +} + +void AVEncoder::reset() { + m_pulses = 0; +} + +unsigned long int AVEncoder::getPulses() { + return m_pulses; +} + +void AVEncoder::incrementCount() { + m_pulses++; +} \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/AVEncoder.h Tue Nov 03 06:12:30 2015 +0000 @@ -0,0 +1,55 @@ +/** + * @author Aravind Vadali + * + * @section LICENSE + * + * Copyright (c) 2015 + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @section DESCRIPTION + * Because the QEI library is buggy as !@#$ + * Instead of even trying to determine direction, this will just give number of + * pulses. A more fleshed out solution where direction is taken into account can + * be worked out later. + **/ + +#ifndef QEI_H +#define QEI_H + +/** + * Includes + */ +#include "mbed.h" + +class AVEncoder { + +public: + AVEncoder(PinName channelA, PinName channelB); + unsigned long int getPulses(); + void reset(); +private: + unsigned long int m_pulses; + InterruptIn chanA; + InterruptIn chanB; + void incrementCount(); +}; + + +#endif /* QEI_H */ \ No newline at end of file