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Dependencies:   USBDevice mbed-rtos mbed

Fork of JoyStick by Ries Twisk

SimpleButtonDecoder.cpp@5:a0bb17c379ce, 2016-06-22 (annotated)

Committer:
rvt
Date:
Wed Jun 22 12:50:16 2016 +0000
Revision:
5:a0bb17c379ce
Parent:
2:ae7a31a3c618 
Latest

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rvt 2:ae7a31a3c618 1 #include "SimpleButtonDecoder.h"
rvt 2:ae7a31a3c618 2
rvt 2:ae7a31a3c618 3
rvt 2:ae7a31a3c618 4 SimpleButtonDecoder::SimpleButtonDecoder(AnalogInFiltered *analogIn, int value, short deBounceRuns)
rvt 2:ae7a31a3c618 5 {
rvt 2:ae7a31a3c618 6 _analogIn = analogIn;
rvt 2:ae7a31a3c618 7 _value = value;
rvt 2:ae7a31a3c618 8 _isChanged = false;
rvt 2:ae7a31a3c618 9 _deBounceRuns = deBounceRuns;
rvt 2:ae7a31a3c618 10 _debounceCount = 1;
rvt 2:ae7a31a3c618 11
rvt 2:ae7a31a3c618 12 _pulseUp=false;
rvt 2:ae7a31a3c618 13 _status=false;
rvt 2:ae7a31a3c618 14 }
rvt 2:ae7a31a3c618 15
rvt 2:ae7a31a3c618 16 SimpleButtonDecoder::~SimpleButtonDecoder()
rvt 2:ae7a31a3c618 17 {
rvt 2:ae7a31a3c618 18 }
rvt 2:ae7a31a3c618 19
rvt 2:ae7a31a3c618 20 void SimpleButtonDecoder::process()
rvt 2:ae7a31a3c618 21 {
rvt 2:ae7a31a3c618 22 _pulseUp=false;
rvt 2:ae7a31a3c618 23 _pulseDown=false;
rvt 2:ae7a31a3c618 24
rvt 2:ae7a31a3c618 25 // Detect if the analog in is within the value range + fuzzy factor
rvt 2:ae7a31a3c618 26 if (abs((_analogIn->getData() + 32768) - _value) < _analogIn->getFuzzyFactor()) {
rvt 2:ae7a31a3c618 27 // When the analog values iw within the fuzzy factor for XX debounce runs, consider this now a up flank to true state
rvt 2:ae7a31a3c618 28 if (_debounceCount == _deBounceRuns) {
rvt 2:ae7a31a3c618 29 _pulseUp=!_status;
rvt 2:ae7a31a3c618 30 _status=true;
rvt 2:ae7a31a3c618 31 _debounceCount++;
rvt 2:ae7a31a3c618 32 return;
rvt 2:ae7a31a3c618 33 }
rvt 2:ae7a31a3c618 34 // If the _debounceCount is bigger then deboucneruns, consider this a on state (passed the up flanc)
rvt 2:ae7a31a3c618 35 if (_debounceCount > _deBounceRuns) {
rvt 2:ae7a31a3c618 36 return;
rvt 2:ae7a31a3c618 37 }
rvt 2:ae7a31a3c618 38 _debounceCount++;
rvt 2:ae7a31a3c618 39 } else {
rvt 2:ae7a31a3c618 40 // If debounce count is at 1, then consider this a down flanc back to false
rvt 2:ae7a31a3c618 41 if (_debounceCount == 1) {
rvt 2:ae7a31a3c618 42 _debounceCount--;
rvt 2:ae7a31a3c618 43 _pulseDown=_status;
rvt 2:ae7a31a3c618 44 _status=false;
rvt 2:ae7a31a3c618 45 return;
rvt 2:ae7a31a3c618 46 }
rvt 2:ae7a31a3c618 47 // if the debounce is below <1 then we have a stable state again.
rvt 2:ae7a31a3c618 48 if (_debounceCount < 1) {
rvt 2:ae7a31a3c618 49 return;
rvt 2:ae7a31a3c618 50 }
rvt 2:ae7a31a3c618 51 _debounceCount--;
rvt 2:ae7a31a3c618 52 }
rvt 2:ae7a31a3c618 53 }
rvt 2:ae7a31a3c618 54
rvt 2:ae7a31a3c618 55 bool SimpleButtonDecoder::getStatus()
rvt 2:ae7a31a3c618 56 {
rvt 2:ae7a31a3c618 57 return _status;
rvt 2:ae7a31a3c618 58 }
rvt 2:ae7a31a3c618 59
rvt 2:ae7a31a3c618 60 bool SimpleButtonDecoder::getIsChanged()
rvt 2:ae7a31a3c618 61 {
rvt 2:ae7a31a3c618 62 return _pulseUp || _pulseDown;
rvt 2:ae7a31a3c618 63 }
rvt 2:ae7a31a3c618 64
rvt 2:ae7a31a3c618 65 bool SimpleButtonDecoder::getIsPressed()
rvt 2:ae7a31a3c618 66 {
rvt 2:ae7a31a3c618 67 return _pulseUp;
rvt 2:ae7a31a3c618 68 }
rvt 2:ae7a31a3c618 69
rvt 2:ae7a31a3c618 70 bool SimpleButtonDecoder::getIsReleased()
rvt 2:ae7a31a3c618 71 {
rvt 2:ae7a31a3c618 72 return _pulseUp;
rvt 2:ae7a31a3c618 73 }