Steven Swenson / FrequencyFinder

Class to determine the frequency of an input array

Dependents:   tuner

FrequencyFinder.h@0:78c2ee8ea962, 2012-11-25 (annotated)

Committer:
melangeaddict
Date:
Sun Nov 25 23:10:33 2012 +0000
Revision:
0:78c2ee8ea962
[mbed] converted /tuner/FrequencyFinder

Who changed what in which revision?

UserRevisionLine numberNew contents of line
melangeaddict 0:78c2ee8ea962 1 #pragma once
melangeaddict 0:78c2ee8ea962 2 #include "mbed.h"
melangeaddict 0:78c2ee8ea962 3 #include "FFT.h"
melangeaddict 0:78c2ee8ea962 4
melangeaddict 0:78c2ee8ea962 5 #include "NewTextLCD.h"
melangeaddict 0:78c2ee8ea962 6
melangeaddict 0:78c2ee8ea962 7 using namespace std;
melangeaddict 0:78c2ee8ea962 8
melangeaddict 0:78c2ee8ea962 9 const int size=4096;
melangeaddict 0:78c2ee8ea962 10
melangeaddict 0:78c2ee8ea962 11 class FrequencyFinder{
melangeaddict 0:78c2ee8ea962 12 public:
melangeaddict 0:78c2ee8ea962 13
melangeaddict 0:78c2ee8ea962 14 FrequencyFinder(PinName input);
melangeaddict 0:78c2ee8ea962 15 ~FrequencyFinder();
melangeaddict 0:78c2ee8ea962 16
melangeaddict 0:78c2ee8ea962 17 float find_frequency();
melangeaddict 0:78c2ee8ea962 18 void get_data();
melangeaddict 0:78c2ee8ea962 19 void take_abs();
melangeaddict 0:78c2ee8ea962 20 int find_peak();
melangeaddict 0:78c2ee8ea962 21 int find_max(int);
melangeaddict 0:78c2ee8ea962 22 void initialize_array();
melangeaddict 0:78c2ee8ea962 23 void copy_data();
melangeaddict 0:78c2ee8ea962 24
melangeaddict 0:78c2ee8ea962 25 private:
melangeaddict 0:78c2ee8ea962 26 float signal_array[size];
melangeaddict 0:78c2ee8ea962 27 int index;
melangeaddict 0:78c2ee8ea962 28 int peak;
melangeaddict 0:78c2ee8ea962 29 int frequency_final;
melangeaddict 0:78c2ee8ea962 30
melangeaddict 0:78c2ee8ea962 31 Ticker ticker;
melangeaddict 0:78c2ee8ea962 32 AnalogIn _signal_in;
melangeaddict 0:78c2ee8ea962 33 AnalogOut _dc_offset;
melangeaddict 0:78c2ee8ea962 34
melangeaddict 0:78c2ee8ea962 35 };