Diff: MAF.h

Revision:

28:2d1c7d7635d0

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+++ b/MAF.h	Fri Oct 17 09:10:53 2014 +0000
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+/* Copyright (c) <2012> MIT License
+ *
+ * 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.
+ *
+ * @section DESCRIPTION
+ *
+ * Moving Average Filter
+ *
+ *
+ */
+ 
+#ifndef MAF_H
+#define MAF_H
+
+#include "mbed.h"
+
+/** 10-Point Moving Average filter
+ *
+ * Example:
+ * @code
+ * // Update the filter with gyroscope readings
+ * #include "mbed.h"
+ * #include "ITG3200.h"
+ * #include "MAF.h"
+ * 
+ * Serial pc(USBTX, USBRX);
+ * ITG3200 gyro(p9, p10);
+ * MAF Filter();
+ * int Average;
+ * 
+ * int main() {
+ *    
+ *    gyro.setLpBandwidth(LPFBW_42HZ);
+ *
+ *     while(1){
+ *   
+ *      Average = Filter.updateInt(gyro.getGyroX());
+ *      pc.printf("%i\n",Average);
+ *      wait_ms(50);
+ * }    
+ * }
+ * @endcode
+ */
+class MAF {
+
+    public:
+    
+       /* Creates a 10-Point Moving Average Filter object
+       *
+       */   
+        MAF(void);
+        
+        /* Updates the filter
+        *  @param data new data input for the filter,returns the float average
+        */
+        float update(float data);
+        
+        /* Updates the filter
+        *  @param data new data input for the filter, returns the integer average
+        */
+        int updateInt(int data);
+    
+    private :
+    
+        float _k[10];
+        int   _a[10];
+        
+        float _result;
+        int   _resultInt;
+};
+
+#endif 
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