mbed_example / Mbed OS AnalogOut_ex_1

Additional AnalogOut example

main.cpp

Committer:
sarahmarshy
Date:
2017-06-23
Revision:
1:e758daa05e53
Parent:
0:066510b55650

File content as of revision 1:e758daa05e53:

#include "mbed.h"

const double pi = 3.141592653589793238462;
const double amplitude = 0.5f;
const double offset = 65535/2;

// The sinewave is created on this pin
AnalogOut aout(A5);

int main()
{
    double rads = 0.0;
    uint16_t sample = 0;
    
    while(1) {
        // sinewave output
        for (int i = 0; i < 360; i++) {
            rads = (pi * i) / 180.0f;
            sample = (uint16_t)(amplitude * (offset * (cos(rads + pi))) + offset);
            aout.write_u16(sample);
        }
    }
}