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Dependencies: HIDScope mbed MODSERIAL
Diff: main.cpp
- Revision:
- 6:8197f9446daf
- Parent:
- 5:b400209df739
- Child:
- 7:040591b3f019
--- a/main.cpp Wed Oct 07 11:10:36 2015 +0000
+++ b/main.cpp Wed Oct 07 11:46:29 2015 +0000
@@ -1,88 +1,17 @@
#include "mbed.h"
-#include "HIDScope.h"
#include "encoder.h"
-#include "Filter.h"
-#include "Meanvalue.h"
#include "Filterdesigns.h"
-AnalogIn emg(A0); //Analog input van emg kabels
Ticker EMGticker;
-HIDScope scope(3); //2 scopes
-
-// constante variabelen:
//Sample frequentie
double Fs = 500; //Hz
double t = 1/ Fs; // voor EMGticker
-double gem = 0.4557; // gemiddelde waarde emgsignaal
-
-//gemiddelde bepalen
-double sum = 0;
-double ymean = 0;
-int a = 0;
-int delay = 40;
-
-
-// Filter1a: 50Hz Notch
-double v1_50a = 0, v2_50a = 0;
-const double a1_50a = -1.56858163817, a2_50a = 0.96424138921;
-const double b0_50a = 1.00000000000, b1_50a = -1.61854514265, b2_50a = 1.00000000000;
-const double gain_50a = 1.000000;
-
-// Filter1b: 50Hz Notch
-double v1_50b = 0, v2_50b = 0;
-const double a1_50b = -1.61100357834, a2_50b = 0.96592171046;
-const double b0_50b = 1.00000000000, b1_50b = -1.61854514265, b2_50b = 1.00000000000;
-const double gain_50b = 0.965081;
-
-
-// Filter1: 20Hz HighPass
-double v1_HP = 0, v2_HP = 0;
-const double a1_HP = -0.76475499450, a2_HP = 0.27692273367;
-const double b0_HP = 1.00000000000, b1_HP = -2.00000000000, b2_HP = 1.00000000000;
-const double gain_HP = 0.510419;
-
-// Filter1: 5Hz LowPass
-double v1_LP = 0, v2_LP = 0;
-const double a1_LP = -1.16338171052, a2_LP = 0.42191097989;
-const double b0_LP = 1.00000000000, b1_LP = 2.00000000000, b2_LP = 1.00000000000;
-const double gain_LP = 0.064632;
-
-void EMGfilter()
-{
- //u = input waarde
- //y = output waarde
-
- double u = emg.read() - gem; // lees waarde van emg signaal uit
+void EMGfilter(){
+ Filterdesign1();
+ }
- // Op deze manier worden de waardes ingelezen in Filter. Zorg dus voor dezelfde volgorde, zodat de waardes goed uitgelezen worden!:
- // Filter(double u, double &v1, double &v2, const double a1, const double a2, const double b0, const double b1, const double b2, const double gain)
-
- // 50Hz Notch filter
- double y50a = Filter(u, v1_50a, v2_50a, a1_50a, a2_50a, b0_50a, b1_50a, b2_50a, gain_50a);
- double y50b = Filter(y50a, v1_50b, v2_50b, a1_50b, a2_50b, b0_50b, b1_50b, b2_50b, gain_50b);
-
- // High Pass filter. Tot 20Hz wordt weggefliterd
- double yHP = Filter(y50b, v1_HP, v2_HP, a1_HP, a2_HP, b0_HP, b1_HP, b2_HP, gain_HP);
-
- // Absolute waarde wordt genomen.
- double y1 = fabs(yHP);
-
- // Low Pass filter. Alles vanaf 5Hz wordt weggefilterd
- double yLP = Filter(y1, v1_LP, v2_LP, a1_LP, a2_LP, b0_LP, b1_LP, b2_LP, gain_LP);
-
- double y = 10 * yLP;
-
- double ymean = Meanvalue(y, sum, a, ymean, delay);
-
- // Plotten in HIDscope
- scope.set(0,u); //ongefilterde waarde naar scope 1
- scope.set(1,y); //gefilterde waarde naar scope 2
- scope.set(2,ymean); // gefilterde en gemiddelde waarde naar scope 3
- scope.send(); //stuur de waardes naar HIDscope
-}
-
int main(){
EMGticker.attach(&EMGfilter, t); //500Hz