/* Gets the value of SysTick Calibration Value Register. 
This register contains of TENMS, which can be used to set Systick 10ms value. */
unsigned long xSysTickCalibrGet(void)
/* Gets the value of SysTick Calibration Value Register. 
This register contains of TENMS, which can be used to set Systick 10ms value. */
unsigned long xSysTickCalibrGet(void)
{
    return(xHWREG(NVIC_ST_CAL));
}