Chris Hills
/
2017_11_28_ELEC347_Coursework
Test
Fork of ELEC347_CourseWork by
main.cpp
- Committer:
- mwthewsey
- Date:
- 2017-11-23
- Revision:
- 0:d39a06ca6bf1
- Child:
- 1:b088b771a591
File content as of revision 0:d39a06ca6bf1:
#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; Thread T1; Thread T2; FILTER BP_filter(35000,4000,2,2); //Create object of type Filter(Fs,Fo,Boost,Q) void sampler(void); int main() { float sample_rate = (1.0/35000) ; sample_timer.attach(&sampler,sample_rate); while(1) { sleep(); } } void sampler(void) { SampLED = 1; //LED Indicates start of sampling float 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 }