Biorobotics / Mbed 2 deprecated EMG_test

Script to plot both a raw EMG signal and the filtered signal in HIDscope

Dependencies:   HIDScope mbed

Diff: main.cpp

Revision:
1:f32f8eac8af1
Parent:
0:c85b764527f4
Child:
2:1d29b91bc46a
--- a/main.cpp	Mon Oct 26 14:26:22 2015 +0000
+++ b/main.cpp	Mon Oct 26 14:45:46 2015 +0000
@@ -24,7 +24,7 @@
 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 v = u - a1*v1 - a2*v2;
     double y = b0*v + b1*v1 + b2*v2;
     //values of v2 and v1 are updated, as they are passed by reference
     //they update globally
@@ -140,8 +140,8 @@
     filter_left = filter(input_left, v1_left, v2_left);
     filter_right = filter(input_right, v1_right, v2_right);
     
-    scope.set(0, input_left);
-    scope.set(1, test);
+    scope.set(1, input_left);
+    scope.set(0, filter_left);
     scope.send();
 }