A replacement for InterruptIn that debounces the interrupt.
Dependents: D7A_Demo-Get-started CVtoOSCConverter EE3501keypad D7A_Localisation ... more
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Example code:
#include "DebouncedInterrupt.h" DebouncedInterrupt up_button(USER_BUTTON); void onUp() { // Do Something } int main() { // Will immediatly call function and ignore other interrupts until timeout up_button.attach(&onUp, IRQ_FALL, 1000, true); // Will call function only if button has been held for the specified time //up_button.attach(&onUp, IRQ_FALL, 500, false); while(1) {} }
DebouncedInterrupt.h
- Committer:
- kandangath
- Date:
- 2014-02-18
- Revision:
- 10:cb16d2957f8d
- Parent:
- DebounceInterrupts.h@ 8:4b3ff16d5f91
- Child:
- 11:af6d7dc34062
File content as of revision 10:cb16d2957f8d:
/** * DebouncedInterrupt.h * Monitors and debounces an InterruptIn **/ /** Example: InterruptIn up_button(p15); void onUp() { // Do Something } int main() { DebouncedInterrupt upD(&onUp, &up_button, INT_FALL, 100); while(1) { ... } } **/ #ifndef DEBOUNCED_INTERRUPT_H #define DEBOUNCED_INTERRUPT_H #include <stdint.h> #include "mbed.h" enum interruptTrigger{ INT_FALL = 0, INT_RISE = 1 }; class DebouncedInterrupt { private: unsigned int _debounce_us; unsigned int _debounce_count; unsigned int _last_debounce_count; InterruptIn *_in; void (*fCallback)(void); void _onInterrupt(void); void _callback(void); public: DebouncedInterrupt(PinName pin); ~DebouncedInterrupt(); // Start monitoring the interupt and attach a callback void attach(void (*fptr)(void), const interruptTrigger& trigger, const uint32_t& debounce_ms=10); // Stop monitoring the interrupt void reset(); /* * Get number of de-bounced interrupts * @return: debounced count */ unsigned int get_debounce(); }; #endif