nartc_alarm: Example for Alarm on Real Time Clock Driver 

This example demonstrates how the alarm event works on the real time 
clock driver (RTC). 

The RTC alarm clock driver is only available on NS9630 and NS9215.

If BSP_INCLUDE_RTC_DRIVER in bsp_drivers.h is set to TRUE, the real time clock driver 
should be initialized and linked in Standard Time function in C library.
Otherwise, this example will initialize the RTC and link in Standard Time 
Function in C library. NET+OS currently supports RTC only in NS9360 and
NS9215.

Note for ConnectCore9P 9215 development board users, the development board 
ships from the factory with the battery is disabled.  To enable the 
battery, place a jumper across the development board at J2.

User is responsible to update the initial time even if BSP_INCLUDE_RTC_DRIVER is 
enabled.

This example sets up an alarm with relative time specified in gAlarmRelTime table
and absolute time (3 times).

The example displays current time every 20 seconds.

The application uses the following files located in the
netos\src\linkerScripts directory.  These files are generated
when the BSP is built.

bootldr.dat     bootloader configuration file used to generate the
                file image.bin.  It controls the information placed
                in the bootloader header of the image.

image.ldr       GNU linker script used to build an image that can
                be debugged and used with the bootloader.
                
customize.ldr   Customizable GNU linker script
