Numero Uno / Mbed 2 deprecated EMG_Filter

Basic emg filter setup

Dependencies:   HIDScope mbed biquadFilter

Fork of EMG_Filter by Maarten Ganseij

Files at this revision

API Documentation at this revision

Revision 2:85984e2aee8d, committed 2015-09-25

Comitter:
mganseij
Date:
Fri Sep 25 08:19:05 2015 +0000
Parent:
1:55620051895b
Commit message:
CHanging some filter code

Changed in this revision

biquadFilter.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file 
diff -r 55620051895b -r 85984e2aee8d biquadFilter.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/biquadFilter.lib	Fri Sep 25 08:19:05 2015 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/tomlankhorst/code/biquadFilter/#e3bf917ae0a3

diff -r 55620051895b -r 85984e2aee8d main.cpp
--- a/main.cpp	Thu Sep 24 09:45:37 2015 +0000
+++ b/main.cpp	Fri Sep 25 08:19:05 2015 +0000
@@ -2,6 +2,7 @@
 #include "HIDScope.h"
 #include <cstring>
 #include <cmath>
+#include "biquadFilter.h"
 
 AnalogIn input1(A0); // first EMG input
 AnalogIn input2(A1); // second EMG input
@@ -60,7 +61,10 @@
     memmove(outputs_previous, outputs_current, sizeof(outputs_previous)); // same for this output
     for(int n = 0; n <= 3; n++)
     {
-        outputs_current[n] = fabs(high_b1*inputs_current[n] + high_b2*inputs_previous[n] + high_b3*inputs_previous2[n] - high_a2*outputs_previous[n] - high_a3*outputs_previous2[n]) * (low_b1*inputs_current[n] + low_b2*inputs_previous[n] + low_b3*inputs_previous2[n] - low_a2*outputs_previous[n] - low_a3*outputs_previous2[n]);
+        outputs_current[n] = high_b1*inputs_current[n] + high_b2*inputs_previous[n] + high_b3*inputs_previous2[n] - high_a2*outputs_previous[n] - high_a3*outputs_previous2[n];
+        outputs_current[n] = fabs(outputs_current[n]);
+        outputs_current[n] = (low_b1*inputs_current[n] + low_b2*inputs_previous[n] + low_b3*inputs_previous2[n] - low_a2*outputs_previous[n] - low_a3*outputs_previous2[n]);
+        outputs_current[n] = outputs_current[n];
     }
 }