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>
#include <stdio.h>

typedef struct {
    float value;
} Result;


void generateSinusCurve(float samples_per_period, float phase, float amplitude, Result res[]) {
    float delta_phase = 2.0 * M_PI / samples_per_period;
    float current_phase = phase;

    for (int i = 0; i < DATA_CHANNEL_DEPTH; ++i) {
        res[i].value = amplitude * sinf(current_phase);
        current_phase += delta_phase;
    }
}



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 );
	float_word res;

	


//float samples_per_period = 32.0;
	float samples_per_period = task ->samples_per_periode;
   	float phase = task-> phase;
   	float amplitude = task -> amplitude;

    	Result results[DATA_CHANNEL_DEPTH];

   	 generateSinusCurve(samples_per_period, phase, amplitude, results);






for (int i = 0; i < DATA_CHANNEL_DEPTH; ++i) {
        //printf("Wert %d: %f\n", i, results[i].value);
	res.value = results[i].value;
	data_channel_write( data_channel_base, res.word);
    }

    return 0;
}