WizziLab / DebouncedInterrupt

A replacement for InterruptIn that debounces the interrupt.

Dependents:   D7A_Demo-Get-started CVtoOSCConverter EE3501keypad D7A_Localisation ... more

Fork of DebouncedInterrupt by Anil Kandangath

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) {}
}

Diff: DebouncedInterrupt.cpp

Revision:
21:34b95e1b2bf3
Parent:
19:d12a5b89ac3a
Child:
22:9733f886810a
--- a/DebouncedInterrupt.cpp	Fri Feb 21 16:50:56 2014 +0000
+++ b/DebouncedInterrupt.cpp	Tue Feb 25 07:13:29 2014 +0000
@@ -19,6 +19,12 @@
 
 void DebouncedInterrupt::attach(void (*fptr)(void), const gpio_irq_event trigger, const unsigned int& debounce_ms)
 {
+    attach(this, fptr, trigger, debounce_ms);
+}
+
+template<typename T>
+void DebouncedInterrupt::attach(T *cptr, void (*fptr)(void), const gpio_irq_event trigger, const unsigned int& debounce_ms)
+{
     if(fptr) {
         fCallback = fptr;
         _last_bounce_count = _bounce_count = 0;
@@ -28,10 +34,10 @@
         switch(trigger)
         {
             case IRQ_RISE:
-                _in->rise(this, &DebouncedInterrupt::_onInterrupt);
+                _in->rise(cptr, &DebouncedInterrupt::_onInterrupt);
                 break;
             case IRQ_FALL:
-                _in->fall(this, &DebouncedInterrupt::_onInterrupt);
+                _in->fall(cptr, &DebouncedInterrupt::_onInterrupt);
                 break;
             case IRQ_NONE:
                 reset(); // Unexpected. Clear callbacks.