Revision 11:24b34deae975, committed 2020-03-03

Comitter:

jirrick

Date:

Tue Mar 03 12:20:55 2020 +0000

Parent:

10:2502b829d452

Commit message:

configure detection of rise and fall events

Changed in this revision

diff -r 2502b829d452 -r 24b34deae975 mRotaryEncoder.cpp
--- a/mRotaryEncoder.cpp	Fri Feb 26 20:18:57 2016 +0000
+++ b/mRotaryEncoder.cpp	Tue Mar 03 12:20:55 2020 +0000
@@ -2,7 +2,7 @@
 #include "mRotaryEncoder.h"
 
 
-mRotaryEncoder::mRotaryEncoder(PinName pinA, PinName pinB, PinName pinSW, PinMode pullMode, int debounceTime_us) {
+mRotaryEncoder::mRotaryEncoder(PinName pinA, PinName pinB, PinName pinSW, PinMode pullMode, int debounceTime_us, int detectRise, int detectFall) {
     m_pinA = new PinDetect(pinA);                      // interrrupts on pinA
     m_pinB = new DigitalIn(pinB);                      // only digitalIn for pinB
 
@@ -11,8 +11,12 @@
     m_pinB->mode(pullMode);
 
     // attach interrrupts on pinA
-    m_pinA->attach_asserted(this, &mRotaryEncoder::rise);
-    m_pinA->attach_deasserted(this, &mRotaryEncoder::fall);
+    if (detectRise != 0){
+        m_pinA->attach_asserted(this, &mRotaryEncoder::rise);
+    }
+    if (detectFall != 0){
+        m_pinA->attach_deasserted(this, &mRotaryEncoder::fall);
+    }
     
     //start sampling pinA
     m_pinA->setSampleFrequency(debounceTime_us);                  // Start timers an Defaults debounce time.

diff -r 2502b829d452 -r 24b34deae975 mRotaryEncoder.h
--- a/mRotaryEncoder.h	Fri Feb 26 20:18:57 2016 +0000
+++ b/mRotaryEncoder.h	Tue Mar 03 12:20:55 2020 +0000
@@ -34,6 +34,7 @@
  *     First version published Thomas Raab raabinator
  * 26.11.2010 extended by charly - pushbutton, pullmode, debounce, callback-system
  * Feb2011 Changes InterruptIn to PinDetect which does the debounce of mechanical switches
+ * Mar2020 Configurable detection of rise/fall events to account for different types of encoders (half as much dent points)
  *
  */
 class mRotaryEncoder {
@@ -45,8 +46,10 @@
     * @param pinSW Pin for push-button switch
     * @param pullmode mode for pinA pinB and pinSW like DigitalIn.mode
     * @param debounceTime_us time in micro-seconds to wait for bouncing of mechanical switches to end
+    * @param detectRise Detect rise event as new rotation
+    * @param detectFall Detect fall event as new rotation
     */
-    mRotaryEncoder(PinName pinA, PinName pinB, PinName pinSW, PinMode pullMode=PullUp, int debounceTime_us=1000);
+    mRotaryEncoder(PinName pinA, PinName pinB, PinName pinSW, PinMode pullMode=PullUp, int debounceTime_us=1000, int detectRise=1, int detectFall=1);
 
     /** destroy object
     *