Revision 0:408abc8a3d3e, committed 2010-12-13

Comitter:

wek

Date:

Mon Dec 13 23:34:17 2010 +0000

Child:

1:3acf57259c58

Commit message:

initial revision

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DebounceIn_.h	Mon Dec 13 23:34:17 2010 +0000
@@ -0,0 +1,117 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+ 
+#ifndef DEBOUNCEIN_H
+#define DEBOUNCEIN_H
+ 
+#include "mbed.h"
+
+/** DebounceIn adds mechanical switch debouncing to DigitialIn.
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "DebounceIn.h"
+ *
+ * DebounceIn  d(p5);
+ * DigitialOut led1(LED1);
+ * DigitialOut led2(LED2);
+ *
+ * int main() {
+ *     while(1) {
+ *         led1 = d;
+ *         led2 = d.read();
+ *     }
+ * }
+ * @endcode
+ *
+ * @see set_debounce_us() To change the sampling frequency.
+ * @see set_samples() To alter the number of samples.
+ *
+ * This example shows one input displayed by two outputs. The input
+ * is debounced by the default 10ms.
+ */
+ 
+class DebounceIn : public DigitalIn {
+    public:
+    
+        /** set_debounce_us
+         *
+         * Sets the debounce sample period time in microseconds, default is 1000 (1ms)
+         *
+         * @param int i The debounce sample period time to set.
+         */        
+        void set_debounce_us(int i) { _ticker.attach_us(this, &DebounceIn::_callback, i); }
+        
+        /** set_samples
+         *
+         * Defines the number of samples before switching the shadow 
+         * definition of the pin. 
+         *
+         * @param int i The number of samples.
+         */        
+        void set_samples(int i) { _samples = i; }
+        
+        /** read
+         *
+         * Read the value of the debounced pin.
+         */
+        int read(void) { return _shadow; }
+        
+#ifdef MBED_OPERATORS
+        /** operator int()
+         *
+         * Read the value of the debounced pin.
+         */
+        operator int() { return read(); }
+#endif  
+
+        int pressed;
+        /** Constructor
+         * 
+         * @param PinName pin The pin to assign as an input.
+         */
+        DebounceIn(PinName pin, const char *name = NULL) : DigitalIn(pin, name) { _counter = 0; _samples = 10; set_debounce_us(1000); pressed = 0;};
+        
+    protected:
+        void _callback(void) { 
+            if (!DigitalIn::read()) {  // negated as button is pressed when 0 
+                if (_counter < _samples) _counter++; 
+                if ((_counter == _samples) && (_shadow == 0)) {
+                  _shadow = 1;
+                  pressed = 1;
+                } 
+            }
+            else { 
+                if (_counter > 0) _counter--; 
+                if (_counter == 0) _shadow = 0; 
+            }
+        }
+        
+        Ticker _ticker;
+        int    _shadow;
+        int    _counter;
+        int    _samples;
+};
+ 
+#endif
+ 
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DebounceIn__copy.h	Mon Dec 13 23:34:17 2010 +0000
@@ -0,0 +1,117 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+ 
+#ifndef DEBOUNCEIN_H
+#define DEBOUNCEIN_H
+ 
+#include "mbed.h"
+
+/** DebounceIn adds mechanical switch debouncing to DigitialIn.
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "DebounceIn.h"
+ *
+ * DebounceIn  d(p5);
+ * DigitialOut led1(LED1);
+ * DigitialOut led2(LED2);
+ *
+ * int main() {
+ *     while(1) {
+ *         led1 = d;
+ *         led2 = d.read();
+ *     }
+ * }
+ * @endcode
+ *
+ * @see set_debounce_us() To change the sampling frequency.
+ * @see set_samples() To alter the number of samples.
+ *
+ * This example shows one input displayed by two outputs. The input
+ * is debounced by the default 10ms.
+ */
+ 
+class DebounceIn : public DigitalIn {
+    public:
+    
+        /** set_debounce_us
+         *
+         * Sets the debounce sample period time in microseconds, default is 1000 (1ms)
+         *
+         * @param int i The debounce sample period time to set.
+         */        
+        void set_debounce_us(int i) { _ticker.attach_us(this, &DebounceIn::_callback, i); }
+        
+        /** set_samples
+         *
+         * Defines the number of samples before switching the shadow 
+         * definition of the pin. 
+         *
+         * @param int i The number of samples.
+         */        
+        void set_samples(int i) { _samples = i; }
+        
+        /** read
+         *
+         * Read the value of the debounced pin.
+         */
+        int read(void) { return _shadow; }
+        
+#ifdef MBED_OPERATORS
+        /** operator int()
+         *
+         * Read the value of the debounced pin.
+         */
+        operator int() { return read(); }
+#endif  
+
+        int pressed;
+        /** Constructor
+         * 
+         * @param PinName pin The pin to assign as an input.
+         */
+        DebounceIn(PinName pin, const char *name = NULL) : DigitalIn(pin, name) { _counter = 0; _samples = 10; set_debounce_us(1000); pressed = 0;};
+        
+    protected:
+        void _callback(void) { 
+            if (DigitalIn::read()) { 
+                if (_counter < _samples) _counter++; 
+                if ((_counter == _samples) && (_shadow == 0)) {
+                  _shadow = 1;
+                  pressed = 1;
+                } 
+            }
+            else { 
+                if (_counter > 0) _counter--; 
+                if (_counter == 0) _shadow = 0; 
+            }
+        }
+        
+        Ticker _ticker;
+        int    _shadow;
+        int    _counter;
+        int    _samples;
+};
+ 
+#endif
+ 
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Dec 13 23:34:17 2010 +0000
@@ -0,0 +1,91 @@
+#include "mbed.h"
+#include "DebounceIn_.h"
+#include <stdbool.h>
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+DebounceIn button1(p15);
+DebounceIn button2(p16);
+DebounceIn button3(p17);
+DebounceIn button4(p21);
+
+class CSimonButton {
+    _Bool pressed;
+    int button;
+  public:
+          CSimonButton();
+    _Bool IsPressed(void);
+    int   GetButton(void) {return button;};
+    void  Handle(void);
+};
+
+CSimonButton::CSimonButton() {
+    button1.mode(PullUp);
+    button2.mode(PullUp);
+    button3.mode(PullUp);
+    button4.mode(PullUp);
+  pressed = 0;
+}
+
+_Bool CSimonButton::IsPressed(void) {
+  _Bool tmp;
+  
+  tmp = pressed;
+  pressed = 0;
+  return tmp;
+}
+
+void CSimonButton::Handle(void) {
+      if  (button1.pressed) {
+        button1.pressed = 0;
+        pressed = 1;
+        button = 1;
+      }
+      if  (button2.pressed) {
+        button2.pressed = 0;
+        pressed = 1;
+        button = 2;
+      }
+      if  (button3.pressed) {
+        button3.pressed = 0;
+        pressed = 1;
+        button = 3;
+      }
+      if  (button4.pressed) {
+        button4.pressed = 0;
+        pressed = 1;
+        button = 4;
+      }
+  
+}
+
+
+uint8_t ledState;
+
+int main() {
+    CSimonButton simonButton;
+    while (1) {
+      led1 = (ledState & 0x01) ? 1 : 0;
+      led2 = (ledState & 0x02) ? 1 : 0;
+      led3 = (ledState & 0x04) ? 1 : 0;
+      led4 = (ledState & 0x08) ? 1 : 0;
+      
+      simonButton.Handle();
+      
+      if (simonButton.IsPressed()) {
+        ledState ^= 1 << (simonButton.GetButton() - 1);
+      }
+    }
+}
+/*
+int main() {
+    while(1) {
+        myled = 1;
+        wait(0.2);
+        myled = 0;
+        wait(0.2);
+    }
+}
+*/
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon Dec 13 23:34:17 2010 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e