Diff: EMG.h

Revision:

3:0662d78d9092

Parent:

2:84ff5b0f5406

Child:

4:963e903c2236

--- a/EMG.h	Mon Oct 12 09:33:07 2015 +0000
+++ b/EMG.h	Mon Oct 12 09:41:48 2015 +0000
@@ -2,17 +2,17 @@
 #include <cmath>
  
  
-int Fs = 512; // sampling frequency
-const double low_b1 = 1.480219865318266e-04; //filter coefficients - second order butterworth filters at 2 hz low and 25 hz high, coefficents based on Fs of 512.
-const double low_b2 = 2.960439730636533e-04;
-const double low_b3 = 1.480219865318266e-04;
-const double low_a2 = -1.965293372622690e+00; // a1 is normalized to 1
-const double low_a3 = 9.658854605688177e-01;
-const double high_b1 = 8.047897937631126e-01;
-const double high_b2 = -1.609579587526225e+00;
-const double high_b3 = 8.047897937631126e-01;
-const double high_a2 = -1.571102440190402e+00; // a1 is normalized to 1
-const double high_a3 = 6.480567348620491e-01;
+int Fs = 200; // sampling frequency
+const double low_b1 = 0.000944691843840; //filter coefficients - second order butterworth filters at 2 hz low and 25 hz high, coefficents based on Fs of 512.
+const double low_b2 = 0.001889383687680;
+const double low_b3 = 0.000944691843840;
+const double low_a2 = -1.911197067426073; // a1 is normalized to 1
+const double low_a3 = 0.914975834801434;
+const double high_b1 = 0.569035593728849;
+const double high_b2 = -1.138071187457699;
+const double high_b3 = 0.569035593728849;
+const double high_a2 = -0.942809041582063; // a1 is normalized to 1
+const double high_a3 = 0.333333333333333;
 biquadFilter highpass1(high_a2, high_a3, high_b1, high_b2, high_b3); // different objects for different inputs, otherwise the v1 and v2 variables get fucked up
 biquadFilter highpass2(high_a2, high_a3, high_b1, high_b2, high_b3);
 biquadFilter highpass3(high_a2, high_a3, high_b1, high_b2, high_b3);
@@ -34,7 +34,7 @@
 Ticker T1;
 volatile bool sample_go;
 
-DigitalOut led(LED_RED);
+
 InterruptIn cali_button(PTA4); // initialize interrupt button for calibration stuff
 double cali_fact1 = 8;
 double cali_fact2 = 8; // calibration factor to normalize filter output to a scale of 0 - 1