Diff: main.cpp

Revision:

0:6863633bf8a4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Mar 24 11:22:30 2017 +0000
@@ -0,0 +1,89 @@
+#include "mbed.h"
+#include "DFT.h"
+#include "LookupTables.h"
+#include "complexmath.h"
+#include <math.h>
+
+
+AnalogIn emg1(A0);
+Serial pc(USBTX, USBRX);
+AnalogIn emg2(A1);
+AnalogIn emg3(A2);
+AnalogIn emg4(A3);
+Ticker  ADCTimer;
+bool fftflag = false;
+int counter;
+int PSDmag1;
+int PSDmag2;
+int PSDmag3;
+int PSDmag4;
+float sampleddataemg1[1024];
+float sampleddataemg2[1024];
+float sampleddataemg3[1024];
+float sampleddataemg4[1024];
+
+
+void sampling()
+{
+    while (fftflag == false) {
+        sampleddataemg1[counter] = emg1;
+        sampleddataemg2[counter] = emg2;
+        sampleddataemg3[counter] = emg3;
+        sampleddataemg4[counter] = emg4;
+        counter++;
+        if (counter >= 1024) {
+            counter =0;
+            pc.printf ("EMG data from A0 :[");
+            for (int i=0; i<1024; i++) 
+                pc.printf ("%f,\t",sampleddataemg1[i]);
+            //pc.printf ("EMG data from A3 :[");
+            //for (int i=0; i<1024; i++) 
+            //    pc.printf ("%f,\t",sampleddataemg4[i]);
+            fftflag = true;
+            performFFT(sampleddataemg1, 1024);
+            //pc.printf ("done 1");
+            performFFT(sampleddataemg2, 1024);
+            //pc.printf ("done 2");
+            performFFT(sampleddataemg3, 1024);
+            //pc.printf ("done 3");
+            performFFT(sampleddataemg4, 1024);
+            pc.printf ("\r\n\r\n\r\n post data from A0 :[");
+            for (int i=0; i<1024; i++) 
+                pc.printf ("%f,\t",sampleddataemg1[i]);
+            //pc.printf ("post data from A3 :[");
+            //for (int i=0; i<1024; i++) 
+            //    pc.printf ("%f,\t",sampleddataemg4[i]);
+            //pc.printf ("EMG data from A1 :[");
+            //for (int i=0; i<1024; i++) 
+            //    pc.printf ("%f,\t",sampleddataemg2[i]);
+            //pc.printf ("EMG data from A2 :[");
+            //for (int i=0; i<1024; i++) 
+            //    pc.printf ("%f,\t",sampleddataemg3[i]);
+            //pc.printf ("EMG data from A3 :[");
+            //for (int i=0; i<1024; i++) 
+            //    pc.printf ("%f,\t",sampleddataemg4[i]);   
+             PSDmag1 = calcPSD(sampleddataemg1, 512);
+             pc.printf ("summed magnitude of A0: %d\r\n",PSDmag1);  
+             PSDmag2 = calcPSD(sampleddataemg2, 512);
+             //pc.printf ("summed magnitude of A1: %d\r\n",PSDmag2);  
+             PSDmag3 = calcPSD(sampleddataemg3, 512);
+             //pc.printf ("summed magnitude of A2: %d\r\n",PSDmag3);  
+             PSDmag4 = calcPSD(sampleddataemg4, 512);
+             //pc.printf ("summed magnitude of A3: %d\r\n",PSDmag4);  
+            fftflag = false; // this need to be false for continuous operation, now it is a one-shot kill
+        }
+    }
+}
+
+
+int main()
+{
+    ADCTimer.attach(&sampling, 0.1/1024);
+    pc.baud(19200);
+    while(1) {
+    }
+
+
+
+
+}