Diff: main.cpp

Revision:

0:abe0bc5c43b7

Child:

1:6a8b45298e54

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Oct 21 13:51:54 2014 +0000
@@ -0,0 +1,95 @@
+#include "mbed.h"
+#include "HIDScope.h"
+#include "MODSERIAL.h"
+#include "arm_math.h"
+
+HIDScope scope(2);//is dit 4 voor 2 spieren? en hoe zit het met scope.set?
+
+AnalogIn emgB(PTB0);
+
+//*** OBJECTS ***
+float (filtered_emgB);
+float drempelwaardeB1, drempelwaardeB2, drempelwaardeB3;//B1=snelheidsstand 1, B2=snelheidsstand 2, B3=snelheidsstand 3
+int yB1, yB2, yB3;
+float B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, MOVAVG_B;//moving average objects
+
+
+//*** FILTERS ***
+arm_biquad_casd_df1_inst_f32 lowpass;
+//constants for 50Hz lowpass
+float lowpass_const[] = {0.2928920553, 0.5857841107, 0.2928920554, -0, -0.17156822136};//{a0 a1 a2 -b1 -b2} van online calculator
+float lowpass_states[4];
+
+arm_biquad_casd_df1_inst_f32 highpass;
+//constants for 10Hz highpass
+float highpass_const[] = {0.8005910267, -1.6011820533, 0.8005910267, 1.5610153913, -0.6413487154};//{a0 a1 a2 -b1 -b2}
+float highpass_states[4];
+
+//*** CALIBRATIE ***
+
+//
+
+//*** BICEP EMG ***
+void Biceps()
+{
+    uint16_t emg_valueB;
+    float emg_value_f32B;
+
+
+    //lezen
+    emg_valueB = emgB.read_u16(); // read direct ADC result, converted to 16 bit integer (0..2^16 = 0..65536 = 0..3.3V)
+    emg_value_f32B = emgB.read();
+
+
+    //filteren
+    arm_biquad_cascade_df1_f32(&highpass, &emg_value_f32B, &filtered_emgB, 1 );
+
+    arm_biquad_cascade_df1_f32(&lowpass, &filtered_emgB, &filtered_emgB, 1 );
+
+    filtered_emgB = fabs(filtered_emgB);
+
+
+    //moving average
+    B0=filtered_emgB;
+
+    MOVAVG_B=B0*0.1+B1*0.1+B2*0.1+B3*0.1+B4*0.1+B5*0.1+B6*0.1+B7*0.1+B8*0.1+B9*0.1;
+
+    B9=B8;
+    B8=B7;
+    B7=B6;
+    B6=B5;
+    B5=B4;
+    B4=B3;
+    B3=B2;
+    B2=B1;
+    B1=B0;
+
+    //naar scherm sturen
+    scope.set(0,emg_valueB);
+    scope.set(1,MOVAVG_B);
+    scope.send();
+
+
+// *** MAIN ***
+    int main() {
+
+
+
+
+        if (filtered_emgB >= drempelwaardeB1) {
+            yB1=1;
+            if (filtered_emgB >= drempelwaardeB2) {
+                yB2=1;
+                if (filtered_emgB >= drempelwaardeB3) {
+                    yB3=1;
+                } else {
+                    yB3=0;
+                }
+            } else {
+                yB2=0;
+            }
+        } else {
+            yB1=0;
+        }
+
+