/********************************************************************************

*

* integer sin function speed test programm

*

********************************************************************************/

#include "arduino.h"

#include "sin_int16.h"

void setup() {

Serial_begin(9600);

}

#define CYCLES 65535

void loop() {

Serial_print("calculating ");

Serial_printnumber(CYCLES);

Serial_print(" sin values");

unsigned int n;

unsigned long start=millis();

for(n=0;n<CYCLES;n++)

{

volatile int x=sin_int16(n);

}

unsigned long stop=millis();

unsigned long duration=stop-start;

Serial_print(" time usage:");

Serial_printnumber(duration);

Serial_println("ms");

Serial_printnumber(duration*1000/CYCLES);

Serial_print(".");

Serial_printnumber((duration*10000/CYCLES)%10);

Serial_println("us per sine calculation");

delay(1000);

}