[ntp:questions] ESR looking for good GPS clocks

Uwe Klein uwe at klein-habertwedt.de
Tue Mar 6 11:36:24 UTC 2012

unruh wrote:
> He is suggesting that the on board gps chip have ntp on board, so that
> your computer timestamps the request, the gps chip then timestamps when
> that trequest was received and returns it. No gps chip that I know of
> has an onboard ntp server. So if you want to get a chip fab to make you
> a special purpose chip which contains a gps receiver and ntp onboard,
> you could probably do it-- but it might cost a bit more than $100 ieach
> in
> lots of 100.

All the current GPS chips are rather capable DSP enhanced microcontrollers.
Freely programmable.
The problem is getting access to sources and the toolchain.


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