signal_processing/software/signal_processing/sine.c

#include "system/task_sine.h"
#include "system/data_channel.h"
#include "system/float_word.h"

#include <math.h>

#define PI 3.14

int task_sine_run( void * data ) {

    sine_config *task = (sine_config*)data;

    uint32_t data_channel_base = task->base.sink;
    data_channel_clear(data_channel_base);

    for (uint32_t i = 0; i < DATA_CHANNEL_DEPTH; ++i)
    {
        float_word res;
        res.value = task->amplitude * sin( (2*PI*task->samples_per_periode) * i + task->phase);

        data_channel_write(data_channel_base, res.word);
    }

    return 0;
}