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) {}
}

Files at this revision

API Documentation at this revision

Revision 25:2163ebb21aef, committed 2017-04-26

Comitter:
Jeej
Date:
Wed Apr 26 11:02:18 2017 +0000
Parent:
24:4e095ebbcfad
Child:
26:2df374d23986
Commit message:
Use mbed callback

Changed in this revision

DebouncedInterrupt.cpp Show annotated file Show diff for this revision Revisions of this file
DebouncedInterrupt.h Show annotated file Show diff for this revision Revisions of this file 
--- a/DebouncedInterrupt.cpp	Thu Nov 19 17:43:15 2015 +0000
+++ b/DebouncedInterrupt.cpp	Wed Apr 26 11:02:18 2017 +0000
@@ -7,7 +7,7 @@
 DebouncedInterrupt::DebouncedInterrupt(PinName pin)
 {
     _in = new InterruptIn(pin);
-    _din = new DigitalIn(pin);
+    _din = new DigitalIn(pin, PullUp);
     _timeout = new Timeout;
 }
 
@@ -31,10 +31,10 @@
         switch(trigger)
         {
             case IRQ_RISE:
-                _in->rise(this, &DebouncedInterrupt::_onInterrupt);
+                _in->rise(callback(this, &DebouncedInterrupt::_onInterrupt));
                 break;
             case IRQ_FALL:
-                _in->fall(this, &DebouncedInterrupt::_onInterrupt);
+                _in->fall(callback(this, &DebouncedInterrupt::_onInterrupt));
                 break;
             case IRQ_NONE:
                 reset(); // Unexpected. Clear callbacks.
@@ -76,10 +76,10 @@
         if (_timeout_expired) {
             _timeout_expired = false;
             _fAttach.call();
-            _timeout->attach_us(this, &DebouncedInterrupt::_callback, _debounce_us);
+            _timeout->attach_us(callback(this, &DebouncedInterrupt::_callback), _debounce_us);
         }
     }
     else {
-        _timeout->attach_us(this, &DebouncedInterrupt::_callback, _debounce_us);
+        _timeout->attach_us(callback(this, &DebouncedInterrupt::_callback), _debounce_us);
     }
 }

--- a/DebouncedInterrupt.h	Thu Nov 19 17:43:15 2015 +0000
+++ b/DebouncedInterrupt.h	Wed Apr 26 11:02:18 2017 +0000
@@ -4,7 +4,6 @@
 
 #include <stdint.h>
 #include "mbed.h"
-#include "FunctionPointer.h"
 
 /**
 typedef enum {
@@ -65,9 +64,9 @@
     // Start monitoring the interupt and attach a callback
     void attach(void (*fptr)(void), const gpio_irq_event trigger, const uint32_t debounce_ms=10, bool immediate=false);
     
-    template<typename T>
-    void attach(T* tptr, void (T::*mptr)(void), const gpio_irq_event trigger, const uint32_t debounce_ms=10, bool immediate=false) {
-        _fAttach.attach(tptr, mptr);
+    template<typename T, typename M>
+    void attach(T *obj, M method, const gpio_irq_event trigger, const uint32_t debounce_ms=10, bool immediate=false) {
+        _fAttach.attach(callback(obj, method));
         _last_bounce_count = _bounce_count = 0;
         _debounce_us = 1000*debounce_ms;
         _trigger = trigger;
@@ -75,10 +74,10 @@
         switch(trigger)
         {
             case IRQ_RISE:
-                _in->rise(tptr, &DebouncedInterrupt::_onInterrupt);
+                _in->rise(callback(this, &DebouncedInterrupt::_onInterrupt));
                 break;
             case IRQ_FALL:
-                _in->fall(tptr, &DebouncedInterrupt::_onInterrupt);
+                _in->fall(callback(this, &DebouncedInterrupt::_onInterrupt));
                 break;
             case IRQ_NONE:
                 reset(); // Unexpected. Clear callbacks.
@@ -97,6 +96,6 @@
     unsigned int get_bounce();
 protected:
 //    https://github.com/mbedmicro/mbed/blob/master/libraries/mbed/api/FunctionPointer.h
-    FunctionPointer _fAttach;
+    Callback<void()> _fAttach;
 };
 #endif
\ No newline at end of file