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:
17:96a51b236ba0
Parent:
14:da09706b92f5
Child:
18:e6e9bc6402b7
--- a/DebouncedInterrupt.cpp	Tue Feb 18 20:22:31 2014 +0000
+++ b/DebouncedInterrupt.cpp	Tue Feb 18 20:38:50 2014 +0000
@@ -17,26 +17,15 @@
     delete _din;
 }
 
-void DebouncedInterrupt::attach(void (*fptr)(void), 
-                                       const interruptTrigger& trigger,
-                                       const unsigned int& debounce_ms)
+void DebouncedInterrupt::attach(void (*fptr)(void), const unsigned int& debounce_ms)
 {
     if(fptr) {
         fCallback = fptr;
         _last_bounce_count = _bounce_count = 0;
+        _debounce_us = 1000*debounce_ms;
         
-        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;
+        _in->rise(this, &DebouncedInterrupt::_onInterrupt);
+        _in->fall(this, &DebouncedInterrupt::_onInterrupt);
     }
 }
 
@@ -54,7 +43,7 @@
 {
     _last_bounce_count = _bounce_count;
     _bounce_count = 0;
-    if(_din) {
+    if(_din->read()) {
         fCallback();
     }
 }
@@ -64,4 +53,3 @@
     _bounce_count++;
     timeout.attach_us(this, &DebouncedInterrupt::_callback, _debounce_us);
 }
-