Diff: rotary_inc.cpp

Revision:

0:ca84ed7518f5

Child:

3:28c77df7c0b6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rotary_inc.cpp	Thu Jan 02 09:30:06 2020 +0000
@@ -0,0 +1,139 @@
+#include "rotary_inc.hpp"
+
+RotaryInc::RotaryInc(PinName pinA, PinName pinB,int mode):mode_(mode){
+    measur_ = false;
+    init(pinA,pinB);
+}
+
+RotaryInc::RotaryInc(PinName pinA,PinName pinB,double circumference,int resolution,int mode)
+    :mode_(mode),resolution_(resolution),circumference_(circumference){
+    measur_ = true;
+    init(pinA,pinB);
+}
+
+void RotaryInc::init(PinName pinA,PinName pinB){
+    reset();
+    A_ = new InterruptIn(pinA,PullUp);
+    B_ = new InterruptIn(pinB,PullUp);
+    A_->rise(callback(this,&RotaryInc::riseA));
+        
+    if(mode_ == 2){
+        A_->fall(callback(this,&RotaryInc::fallA));
+    }else if(mode_ == 4){
+        A_->fall(callback(this,&RotaryInc::fallA));
+        B_->rise(callback(this,&RotaryInc::riseB));
+        B_->fall(callback(this,&RotaryInc::fallB));
+    }else{
+        mode_ = 1;
+    }
+}
+
+void RotaryInc::zero(){
+    timer_.stop();
+    timer_.reset();
+    start_frag_ = false;
+    flag_ = false;
+    last_[0] = pulse_;
+    speed_ = 0;
+    count_ = 0;
+    sum_ = 0;
+    now_ = 0;
+}
+
+void RotaryInc::calcu(){
+    if(!start_frag_){
+        timer_.start();
+        start_frag_ = true;
+        last_[0] = pulse_;
+        pre_t_[0] = 0;
+        count_ = 1;
+    }else if(flag_){
+        now_ = timer_.read();
+        timer_.reset();
+        sum_ -= pre_t_[count_];
+        pre_t_[count_] = now_;
+        sum_ += now_;
+        speed_ = (double)(pulse_ - last_[count_]) / sum_;
+        last_[count_] = pulse_;
+        if(count_ < 19){
+            count_++;
+        }else{
+            count_ = 0;
+        }
+    }else{
+        now_ = timer_.read();
+        timer_.reset();
+        pre_t_[count_] = now_;
+        sum_ += now_;
+        speed_ = (double)(pulse_ - last_[0]) / sum_;
+        last_[count_] = pulse_;
+        count_++;
+        if(count_ > 19){
+            count_ = 0;
+            flag_ = true;
+        }
+    }
+}
+
+void RotaryInc::riseA(){
+    B_->read() ? pulse_-- : pulse_++;
+    if(measur_){
+        calcu();
+    }
+}
+
+void RotaryInc::fallA(){
+    B_->read() ? pulse_++ : pulse_--;
+    if(measur_){
+        calcu();
+    }
+}
+
+void RotaryInc::riseB(){
+    A_->read() ? pulse_++ : pulse_--;
+    if(measur_){
+        calcu();
+    }
+}
+
+void RotaryInc::fallB(){
+    A_->read() ? pulse_-- : pulse_++;
+    if(measur_){
+        calcu();
+    }
+}
+
+long long RotaryInc::get(){
+    return pulse_;
+}
+
+double RotaryInc::getSpeed(){
+    if(!measur_){
+        return 0;
+    }
+    if(timer_.read_ms() > 150){
+        zero();
+    }
+    return speed_ / resolution_ / mode_ * circumference_;
+}
+
+int RotaryInc::diff(){
+    int diff = pulse_ - prev_;
+    prev_ = pulse_;
+    return diff;
+}
+    
+void RotaryInc::reset(){
+    pulse_ = 0;
+    prev_ = 0;
+    if(measur_){
+        zero();
+    }
+}
+
+RotaryInc::~RotaryInc(){
+    A_->disable_irq();
+    B_->disable_irq();
+    delete A_;
+    delete B_;
+}
\ No newline at end of file