Laura Heus / Mbed 2 deprecated EMGmeten_2

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Dependencies:   HIDScope MODSERIAL TextLCD mbed-dsp mbed

Fork of EMGmeten by Laura Heus

Files at this revision

API Documentation at this revision

Revision 2:5d64e4c95f5c, committed 2014-10-28

Comitter:
lauradeheus
Date:
Tue Oct 28 16:37:27 2014 +0000
Parent:
1:b7a9fcf50776
Child:
3:c82170d8b6c8
Commit message:
bandpass, notch en absoluut goed werkend

Changed in this revision

EMGmeten.cpp Show annotated file Show diff for this revision Revisions of this file
MODSERIAL.lib Show annotated file Show diff for this revision Revisions of this file 
--- a/EMGmeten.cpp	Tue Oct 28 14:37:59 2014 +0000
+++ b/EMGmeten.cpp	Tue Oct 28 16:37:27 2014 +0000
@@ -1,20 +1,24 @@
 #include "mbed.h"
 #include "HIDScope.h"
+#include "arm_math.h"
+#include "MODSERIAL.h"
 
-#include "arm_math.h"
-
+//MODSERIAL pc(USBTX,USBRX);
 AnalogIn    emg(PTB1); //Analog input
 HIDScope scope(2);
 
 arm_biquad_casd_df1_inst_f32 lowpass_1; //99Hz
 arm_biquad_casd_df1_inst_f32 lowpass_2; //3Hz
 arm_biquad_casd_df1_inst_f32 highpass; //20Hz
+arm_biquad_casd_df1_inst_f32 notch; //50Hz
 float lowpass_1_const[] = {0.978030479206560 , 1.956060958413119 , 0.978030479206560 , -1.955578240315036 , -0.956543676511203};
 float lowpass_1_states[4];
 float lowpass_2_const[] = {0.002080567135492 , 0.004161134270985 , 0.002080567135492 , 1.866892279711715 , 0.875214548253684};
 float lowpass_2_states[4];
 float highpass_const[] = {0.638945525159022 , -1.277891050318045 ,  0.638945525159022 , 1.142980502539901 , -0.412801598096189};
 float highpass_states[4];
+float notch_const[] = {0.978048948305681 , 0.000000000000000 , 0.978048948305681 , 0.000000000000000 , -0.956097896611362};
+float notch_states[4];
 
 void looper()
 {
@@ -26,8 +30,10 @@
     
     arm_biquad_cascade_df1_f32(&highpass, &emg_value_f32, &filtered_emg, 1 );
     arm_biquad_cascade_df1_f32(&lowpass_1, &filtered_emg, &filtered_emg, 1 );
+    arm_biquad_cascade_df1_f32(&notch, &filtered_emg, &filtered_emg, 1);
     filtered_emg = fabs(filtered_emg);
-    //arm_biquad_cascade_df1_f32(&lowpass_2, &filtered_emg, &filtered_emg, 1 );
+    //emg_value_f32 = fabs(emg_value_f32);
+    //arm_biquad_cascade_df1_f32(&lowpass_2, &emg_value_f32, &filtered_emg, 1 );
     
     scope.set(0,emg_value);     //uint value
     scope.set(1,filtered_emg);  //processed float
@@ -40,6 +46,7 @@
     
     arm_biquad_cascade_df1_init_f32(&lowpass_1,1 , lowpass_1_const, lowpass_1_states);
     arm_biquad_cascade_df1_init_f32(&highpass,1 , highpass_const, highpass_states);
+    arm_biquad_cascade_df1_init_f32(&notch,1 , notch_const, notch_states);
     //arm_biquad_cascade_df1_init_f32(&lowpass_2,1 , lowpass_2_const, lowpass_2_states);
     
     log_timer.attach(looper, 0.005);
@@ -48,6 +55,8 @@
     {
       /*Empty!*/
       /*Everything is handled by the interrupt routine now!*/
+      //pc.baud(9600);
+      //pc.printf("filtered_emg=%f\n\r",filtered_emg);
     }
 }
     
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MODSERIAL.lib	Tue Oct 28 16:37:27 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/Sissors/code/MODSERIAL/#b04ce87dc424