main.c

int main (void){

 startUp();

 USART_config();

 int i,j;

 uint8_t *p;

 float accel_v[3], accel, accel_c[3], accel_w;

 char acc_text[32];

 bma020_init();

 SysTick_Init();

 sendText(acc_text);

  /* Zur Kalibrierung wird der 1001 Wert verwendet*/ 

  for (j=1;j<1000;j++)

  {

    DEBUG_LED_ON; /*Während der Kalibrierung leuchtet eine LED*/

    accel_w = bma020_read_accel(accel_c);

      p=(uint8_t*)&accel_w;

  }

    DEBUG_LED_OFF;   

  while(1)

  {

    SystemCoreClockUpdate();

    for (i = 0; i < 1; i++)  

    {

      accel = bma020_read_accel(accel_v);

      sprintf(acc_text, "\nx:%f, y:%f, z:%f\n", accel_v[0]-p[0], accel_v[1]-p[1], accel_v[2]-p[2]);

      sendText(acc_text); 

      delay_us(10);

    }

  }

}