[ECOS] role of RTC

[Arnaud Mouiche <arnaud dot mouiche at inventel dot fr>]

we can see that each processor port defines those functions (in the 
'xxxx_misc.c' file):

- void hal_clock_initialize(cyg_uint32 period)
- void hal_clock_read(cyg_uint32 *pvalue)
- void hal_delay_us(cyg_int32 usecs)

what kind of timer should a processor use to define correctly those functions ?

what is the link between the RTC and the scheduler. If there is one, where 
is it defined ?

where is defined the time slicing of the scheduler ?

thanks for your help