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For BIOROBOTICS PROJECT
Dependencies: HIDScope MODSERIAL QEI mbed
main.cpp
- Committer:
- dbayuadi
- Date:
- 2015-10-07
- Revision:
- 0:8ccd4c66e07f
- Child:
- 1:3bae5ab25e20
File content as of revision 0:8ccd4c66e07f:
#include "mbed.h" #include "HIDScope.h" #include "QEI.h" AnalogIn emg(A0) HIDScope scope(1); Ticker get; AnalogIn pot(A1); Serial pc(USBTX, USBRX); // tx, rx volatile bool fn_go = false; double y_notch_1; double y_notch_2; double y_high; double y_low; const double Fs = 500; const double Ts = 0.002; const double gain_notch_1 = 0.912483; const double b0_notch_1 = 1.0*gain_notch_1; const double b1_notch_1 = -1.62829098849*gain_notch_1; const double b2_notch_1 = 1.0*gain_notch_1; const double a1_notch_1 = -1.49965530713; const double a2_notch_1 = 0.90720693582; double v1_notch_1 = 0, v2_notch_1 = 0; const double gain_notch_2 = 1.000000; const double b0_notch_2 = 1.0*gain_notch_2; const double b1_notch_2 = -1.63220522905*gain_notch_2; const double b2_notch_2 = 1.0*gain_notch_2; const double a1_notch_2 = -1.61200955424; const double a2_notch_2 = 0.91813588764; double v1_notch_2 = 0, v2_notch_2 = 0; const double gain_high = 0.956602; const double b0_high = 1.0*gain_high; const double b1_high = -1.99999962667*gain_high; const double b2_high = 1.0*gain_high; const double a1_high = -1.91152224950; const double a2_high = 0.91532727281; double v1_high = 0, v2_high = 0; const double gain_low = 0.003428; const double b0_low = 1.0*gain_low; const double b1_low = 2.00000000000*gain_low; const double b2_low = 1.0*gain_low; const double a1_low = -1.86528269522; const double a2_low = 0.87380140464; double v1_low = 0, v2_low = 0; double biquad(double u, double&v1,double&v2,const double a1, const double a2, const double b0, const double b1, const double b2) { double v = u - a1*v1 - a2*v2; double y = b0*v + b1*v1 + b2*v2; v2 = v1; v1 = v; return y; } void fn_activate() { fn_go = true; } void scopeSend() { y_high = biquad(emg.read(), v1_high, v1_high, a1_high, a2_high, b0_high, b1_high, b2_high); y_notch_1 = biquad(y_high, v1_notch_1, v1_notch_1, a1_notch_1,a2_notch_1,b0_notch_1, b1_notch_1, b2_notch_1); y_notch_2 = biquad(y_notch_1, v1_notch_2, v1_notch_2, a1_notch_2, a2_notch_2, b0_notch_2, b1_notch_2, b2_notch_2); y_low = biquad(y_high, v1_low, v1_low, a1_low, a2_low, b0_low, b1_low, b2_low); scope.set(0,y_low); scope.send(); } int main() { get.attach(&fn_activate,Ts); while (true) { if(fn_go == true) { scopeSend(); fn_go = false; } } }