/* \This function use extern interrupt to wake up mcu from sleep mode */
void WakeUpFromPowerDown(void)
/* \This function use extern interrupt to wake up mcu from sleep mode */
void WakeUpFromPowerDown(void)
{	 
    xIntEnable(INT_LPWUP);
    xIntPrioritySet(INT_LPWUP, 1);
    SysCtlWakeUpPinEnable(xtrue);
    SysCtlWakeUpIntEnable(xtrue);
}