config RT_USING_RTC
    bool "Using RTC device drivers"
    default n

    if RT_USING_RTC
        config RT_USING_ALARM
            bool "Using RTC alarm"
            default n

        if RT_USING_ALARM
            config RT_ALARM_STACK_SIZE
                int "stack size for alarm thread"
                default 2048

            config RT_ALARM_TIMESLICE
                int "timeslice for alarm thread"
                default 5

            config RT_ALARM_PRIORITY
                int "priority for alarm thread"
                default 10
        endif

        config RT_USING_SOFT_RTC
            bool "Using software simulation RTC device"
            default n
    endif