Check Flag

Dependencies:   mbed

Revision:
0:35d70ff5c12e
Child:
1:6e9e9eafb91a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BtnEventM0.h	Mon Oct 27 13:30:40 2014 +0000
@@ -0,0 +1,132 @@
+
+
+class BtnEventM0
+{
+public:
+    int16_t pressed;
+
+    BtnEventM0(PinName pin) : _isr(pin) {
+        pressed=0;
+    }
+
+    int CheckFlag() {
+        if( pressed ) {
+            pressed=0;
+            return 1;
+        }
+        return 0;
+    }
+
+    void CheckButton() {
+        if( _isr.read() )
+            pressed = 1;
+    }
+
+    void Init() {
+        _isr.rise(this, &BtnEventM0::RisingISR);
+    }
+
+    void RisingISR() {
+        if( _isr.read() )
+            pressed = 1;
+    }
+protected:
+    InterruptIn _isr;
+};
+
+/*
+class BtnEventM02 : public BtnEventM0
+{
+public:
+    BtnEventM02(PinName pin) : BtnEventM0(pin) {
+        _tm.stop();
+        _tm.reset();
+        _state=1;
+    }
+
+    void Init() {
+        _isr.rise(this, &BtnEventM02::RisingISR);
+    }
+
+    void RisingISR() {
+        if( !_isr.read() )
+            return;
+        pressed = 1;
+        _tm.start();
+        _state = 2;
+    }
+
+    void CheckButton() {
+        if( _state==1 )
+            return;
+        if( _state==2 ) {
+            if( !_isr.read() ) {
+                _state = 1;
+                return;
+            }
+            if( _tm.read_ms()>500 ) {
+                _tm.reset();
+                _state = 3;
+                pressed = 1;
+            }
+        } else if( _state==3 ) {
+            if( !_isr.read() ) {
+                _state = 1;
+                return;
+            }
+            if( _tm.read_ms()>100 ) {
+                _tm.reset();
+                _state = 3;
+                pressed = 1;
+            }
+        }
+    }
+private:
+    int16_t _state;
+    Timer _tm;
+};
+*/
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