[ntp:questions] Embedded solutions

Rob van der Putten rob at sput.nl
Mon Jul 7 16:39:03 UTC 2014

Hi there

Jaap Winius wrote:

> Has anyone here managed to turn a relatively cheap, ARM-based embedded
> system with a serial port into a decent stratum 1 NTP server?
> Thus far I've always attached my GPS and radio time signal receivers to
> much larger x86 hardware platforms, but those machines have other things
> to do and make the NTP server less stable than it can be. However, if I
> were to use dedicated hardware for the NTP server, I'd rather it power-
> efficient and as cheap as possible.
> I've looked at the BeagleBone Black (with an RS232 Cape)

AFAIK the BBB 232 cape doesn't support DCD, so PPS is not available.

> and the
> Wandboard (both ARM platforms),

Same problem.

> but have not had any success with them.
> There are stories stories of people who have done it with Soekris
> hardware (x86), but that's much more expensive.

AFAIK Soekris has a 'regular' serial port.


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