No.  If you want guaranteed 1kHz control you need a realtime kernel.  The
lower limit on Rate/Timer are dependent entirely on your system and load
level.

Josh

On Thu, Aug 26, 2010 at 7:33 PM, Adam Leeper <aleeper@stanford.edu> wrote:

> Hello-
>
> I'm writing a node that will be my servo loop for a robot. In a previous
> implementation the timing consisted of checking the system microsecond
> counter and calling the servo update each millisecond.
>
> Can I use ros::Rate or ros::Timer to get anywhere near 1 kHz rate? If not,
> what is the practical lower limit for these?
>
> Thanks,
>
> Adam Leeper
> Stanford University
> aleeper@stanford.edu
> 719.358.3804
>
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