main.cpp

00001 #include "mbed.h"
00002 #include "QEI.h"
00003 #include "HIDScope.h"
00004 HIDScope scope(2); // We’re going to send 2 channels of data
00005 Ticker AInTicker;
00006 AnalogIn pot(A1);
00007 
00008 QEI Encoder(D13,D12,NC,32);
00009 
00010 
00011 volatile float x;
00012 volatile float x_prev =0; 
00013 volatile float y; // filtered 'output' of ReadAnalogInAndFilter 
00014 volatile float z;
00015 
00016 void ReadAnalogInAndFilter()
00017 {
00018         int n_rev= Encoder.getRevolutions();
00019         int n_pulse= Encoder.getPulses();
00020         
00021         x =  n_pulse*(360/32)-(32*n_rev) ; // Capture data        scope.set(0, x);   // store data in first element of scope memory
00022       //  y =    0;// averaging filter
00023         scope.set(1, x);  // store data in second element of scope memory
00024        // x_prev = x; // Prepare for next round
00025        // z= button1;
00026        // scope.set(0,z);
00027         scope.send(); // send what's in scope memory to PC
00028 }
00029 
00030 int main()
00031 {
00032     AInTicker.attach(&ReadAnalogInAndFilter, 0.01);
00033     
00034     Encoder.reset();
00035     
00036     
00037     while (true) 
00038     {
00039         
00040         
00041         
00042         
00043        
00044     }
00045 }
00046