Debounce InterruptIn
Dependents: led_sigfox Allumag_lampe_sigfox Case_study_02_Turnstile B18_MP3_PLAYER ... more
DebouncedInterrupt.cpp
- Committer:
- kandangath
- Date:
- 2014-02-18
- Revision:
- 14:da09706b92f5
- Parent:
- 13:09b53a088a9c
- Child:
- 17:96a51b236ba0
File content as of revision 14:da09706b92f5:
/** * DebouncedInterrupt.cpp **/ #include "DebouncedInterrupt.h" Timeout timeout; DebouncedInterrupt::DebouncedInterrupt(PinName pin) { _in = new InterruptIn(pin); _din = new DigitalIn(pin); } DebouncedInterrupt::~DebouncedInterrupt() { delete _in; delete _din; } void DebouncedInterrupt::attach(void (*fptr)(void), const interruptTrigger& trigger, const unsigned int& debounce_ms) { if(fptr) { fCallback = fptr; _last_bounce_count = _bounce_count = 0; switch(trigger) { case INT_RISE: _in->rise(this, &DebouncedInterrupt::_onInterrupt); break; case INT_FALL: _in->fall(this, &DebouncedInterrupt::_onInterrupt); break; default: break; } _debounce_us = 1000*debounce_ms; } } void DebouncedInterrupt::reset() { timeout.detach(); } unsigned int DebouncedInterrupt::get_bounce() { return _last_bounce_count; } void DebouncedInterrupt::_callback() { _last_bounce_count = _bounce_count; _bounce_count = 0; if(_din) { fCallback(); } } void DebouncedInterrupt::_onInterrupt() { _bounce_count++; timeout.attach_us(this, &DebouncedInterrupt::_callback, _debounce_us); }