V001. 2017_11_30 10:21 Working code from Tuesday's lab session.

Dependencies:   mbed-rtos mbed

Fork of 2017_11_28_ELEC347_Coursework by Chris Hills

DSP Coursework ELEC347 2017-2018 Group members: Matthew Thewsey, Thomas Morris, Samuel Waggett, Christopher Hills .

main.cpp

Committer:
chills
Date:
2017-11-28
Revision:
6:a2737b51424c
Parent:
5:e49e5515488d
Child:
7:6cb27cce4c50

File content as of revision 6:a2737b51424c:

#include "mbed.h"
#include "rtos.h"
#include "Filter.hpp"


unsigned short ADC_DATA;

//Init  values for difference equation
//MBED Class Instances follows
DigitalOut SampLED(LED1);              //Digital Output  (GREEN LED is PB_3, D13 You can use an Oscilloscope on This pin to confirm sample rate)

AnalogIn  Ain(PA_1);                    //Analog Input (Signal Input 0 to +3 Volts)
AnalogOut Aout(PA_4);                   //Analog Output (Signal Input 0 to +3 Volts)

Ticker sample_timer;


float input = 0.0;
FILTER BP_filter(48000,10000,16,2);  //Create object of type Filter(Fs,Fo,Boost,Q)


void sampler(void);


int main()
{
    BP_filter.Define_Filter();
    BP_filter.Print_Filter();
    float sample_rate = (1.0/35000);
    //sample_timer.attach(&sampler,sample_rate);

    while(1) {
    }
}


void sampler(void)
{
    printf("H");
    SampLED = 1;                        //LED Indicates start of sampling

    input = Ain;
    BP_filter.setvalue(input);       //Input ADC. N.B. ADC in MBED is 0.0 to 1.0 float!!!!!!
    Aout = BP_filter.getvalue();
    

    SampLED = 0;      //LED Indicates end of sampling
}