TOD clock synchronization with NTP

[Thomas Doerfler]

Hi,

> 
> > 
> > A better solution would be an adjustable hardware clock rate but that's
> > hardly portable.
> 
> As a first implementation the above would probably work, then we can think of
> some BSP-level interface to slow-down/speed-up system time. A lot of hardware
> can do this, I believe.

Just another idea: I came over a similar issue during several 
BSP ports: currently RTEMS can only be used easily together 
with hardware timers, that are based on an input clock of a 
microsecond or and integer fraction of microseconds, because 
this is the base unit the system tick is scaled. With these 
means to slowly adjust time slips, you might possibly also 
adjust the errors that come from timer running at odd input 
frequencies...

Thomas.

> 
> --
> Sergei.

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