File content as of revision 0:386f6715c066:

#include "mbed.h"
#include "MMA8451Q.h"
#if   defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
  PinName const SDA = PTE25;
  PinName const SCL = PTE24;
#elif defined (TARGET_KL05Z)
  PinName const SDA = PTB4;
  PinName const SCL = PTB3;
#elif defined (TARGET_K20D50M)
  PinName const SDA = PTB1;
  PinName const SCL = PTB0;
#else
  #error TARGET NOT DEFINED
#endif

#define MMA8451_I2C_ADDRESS (0x1d<<1)
Serial pc(USBTX, USBRX,115200);
Ticker timeout;
Ticker casovac;
int pom=1;
float a=0.95;
float predposledney=0.0;
float predposlednex=0.0;
MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
   static float x;
   
   
void attick(){
    if(pom==1){
            

        x = (acc.getAccX());
            predposledney=a*predposledney+predposlednex;

        pc.printf("%f\n\r", predposledney);
                predposlednex=x;

        }
    }
    void atstop(){pom=0;}
int main(void)

{   

    casovac.attach(&attick,0.00125);
    timeout.attach(&atstop,15.0);
    while (true) {
    
    }
}