A replacement for InterruptIn that debounces the interrupt.
Dependents: D7A_Demo-Get-started CVtoOSCConverter EE3501keypad D7A_Localisation ... more
Fork of DebouncedInterrupt by
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) {} }
DebounceInterrupts.h
- Committer:
- kandangath
- Date:
- 2014-02-18
- Revision:
- 8:4b3ff16d5f91
- Parent:
- 7:2d73e219dadf
File content as of revision 8:4b3ff16d5f91:
/** * Debounces an InterruptIn */ /* Example: InterruptIn up_button(p15); void onUp() { // Do Something } int main() { DebounceInterrupts upD(&onUp, &up_button, INT_FALL, 100); while(1) { ... } } */ #ifndef DEBOUNCE_INTERRUPTS_H #define DEBOUNCE_INTERRUPTS_H #include <stdint.h> #include "mbed.h" enum interruptTrigger{ INT_FALL = 0, INT_RISE = 1 }; class DebounceInterrupts { private: unsigned int _debounce_us; unsigned int _debounce_count; unsigned int _last_debounce_count; void (*fCallback)(void); void _onInterrupt(void); void _callback(void); public: DebounceInterrupts(void (*fptr)(void), /* function to be called after debounced InterruptIn */ InterruptIn *interrupt, /* InterruptIn to monitor */ const interruptTrigger& trigger, /* true: rise, false: fall */ const uint32_t& debounce_ms=10); /* stability duration required */ ~DebounceInterrupts(); /* * Get number of de-bounced interrupts * @return: debounced count */ unsigned int get_debounce(); }; #endif