EMG filter step by step
Dependencies: HIDScope MODSERIAL mbed-dsp mbed
Diff: MAF.h
- Revision:
- 0:e24c2f32e23e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MAF.h Mon Oct 20 13:06:38 2014 +0000 @@ -0,0 +1,85 @@ +/* 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 \ No newline at end of file