Matthew Thewsey / Mbed 2 deprecated ELEC347_Coursework_NonVariable

Non-variable (TESTEDandWORKING)

Dependencies:   mbed-rtos mbed

Fork of ELEC347_Coursework by CMST

main.cpp@0:d39a06ca6bf1, 2017-11-23 (annotated)

Committer:
mwthewsey
Date:
Thu Nov 23 10:41:18 2017 +0000
Revision:
0:d39a06ca6bf1
Child:
1:b088b771a591
Initial publish. (not working);

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mwthewsey 0:d39a06ca6bf1 1 #include "mbed.h"
mwthewsey 0:d39a06ca6bf1 2 #include "rtos.h"
mwthewsey 0:d39a06ca6bf1 3 #include "Filter.hpp"
mwthewsey 0:d39a06ca6bf1 4 unsigned short ADC_DATA;
mwthewsey 0:d39a06ca6bf1 5
mwthewsey 0:d39a06ca6bf1 6 //Init values for difference equation
mwthewsey 0:d39a06ca6bf1 7 //MBED Class Instances follows
mwthewsey 0:d39a06ca6bf1 8 DigitalOut SampLED(LED1); //Digital Output (GREEN LED is PB_3, D13 You can use an Oscilloscope on This pin to confirm sample rate)
mwthewsey 0:d39a06ca6bf1 9
mwthewsey 0:d39a06ca6bf1 10 AnalogIn Ain(PA_1); //Analog Input (Signal Input 0 to +3 Volts)
mwthewsey 0:d39a06ca6bf1 11 AnalogOut Aout(PA_4); //Analog Output (Signal Input 0 to +3 Volts)
mwthewsey 0:d39a06ca6bf1 12
mwthewsey 0:d39a06ca6bf1 13 Ticker sample_timer;
mwthewsey 0:d39a06ca6bf1 14 Thread T1;
mwthewsey 0:d39a06ca6bf1 15 Thread T2;
mwthewsey 0:d39a06ca6bf1 16
mwthewsey 0:d39a06ca6bf1 17 FILTER BP_filter(35000,4000,2,2); //Create object of type Filter(Fs,Fo,Boost,Q)
mwthewsey 0:d39a06ca6bf1 18
mwthewsey 0:d39a06ca6bf1 19 void sampler(void);
mwthewsey 0:d39a06ca6bf1 20
mwthewsey 0:d39a06ca6bf1 21
mwthewsey 0:d39a06ca6bf1 22 int main()
mwthewsey 0:d39a06ca6bf1 23 {
mwthewsey 0:d39a06ca6bf1 24
mwthewsey 0:d39a06ca6bf1 25
mwthewsey 0:d39a06ca6bf1 26 float sample_rate = (1.0/35000) ;
mwthewsey 0:d39a06ca6bf1 27 sample_timer.attach(&sampler,sample_rate);
mwthewsey 0:d39a06ca6bf1 28
mwthewsey 0:d39a06ca6bf1 29
mwthewsey 0:d39a06ca6bf1 30
mwthewsey 0:d39a06ca6bf1 31 while(1) {
mwthewsey 0:d39a06ca6bf1 32 sleep();
mwthewsey 0:d39a06ca6bf1 33 }
mwthewsey 0:d39a06ca6bf1 34 }
mwthewsey 0:d39a06ca6bf1 35
mwthewsey 0:d39a06ca6bf1 36
mwthewsey 0:d39a06ca6bf1 37 void sampler(void)
mwthewsey 0:d39a06ca6bf1 38 {
mwthewsey 0:d39a06ca6bf1 39
mwthewsey 0:d39a06ca6bf1 40 SampLED = 1; //LED Indicates start of sampling
mwthewsey 0:d39a06ca6bf1 41
mwthewsey 0:d39a06ca6bf1 42 float input = Ain;
mwthewsey 0:d39a06ca6bf1 43 BP_filter.setvalue(input); //Input ADC. N.B. ADC in MBED is 0.0 to 1.0 float!!!!!!
mwthewsey 0:d39a06ca6bf1 44 Aout = BP_filter.getvalue();
mwthewsey 0:d39a06ca6bf1 45
mwthewsey 0:d39a06ca6bf1 46
mwthewsey 0:d39a06ca6bf1 47 SampLED = 0; //LED Indicates end of sampling
mwthewsey 0:d39a06ca6bf1 48 }
mwthewsey 0:d39a06ca6bf1 49