Library for manual Encoders as used in user interfaces. Very simple, reduced and rock solid encoder library. Counts full pulses only. Inherent debouncing through state machine. Running on a regular timer IRQ. No IRQ jamming through bouncing. Immune to false edges giving unwanted counts when moving partial steps. Not depending on PinDetect or anything else. May be enhanced by adding acceleration and push button debouncing in the future.
Encoder.h
00001 /* 00002 The MIT License (MIT) 00003 00004 Copyright (c) 2014 calima engineering 00005 00006 Permission is hereby granted, free of charge, to any person obtaining a copy 00007 of this software and associated documentation files (the "Software"), to deal 00008 in the Software without restriction, including without limitation the rights 00009 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00010 copies of the Software, and to permit persons to whom the Software is 00011 furnished to do so, subject to the following conditions: 00012 00013 The above copyright notice and this permission notice shall be included in 00014 all copies or substantial portions of the Software. 00015 00016 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00017 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00018 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00019 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00020 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00021 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00022 THE SOFTWARE. 00023 */ 00024 00025 #ifndef ENCODER_H_ 00026 #define ENCODER_H_ 00027 00028 #include "mbed.h" 00029 00030 void EncoderStart (); 00031 void EncoderStop (); 00032 uint16_t EncoderGetPulses(void); 00033 bool EncoderGetPB (); 00034 00035 #endif // ENCODER_H_ 00036 00037 // End of file
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