[time-nuts] Modern HW replacement for ATOM based NTP server?

Bob Camp kb8tq at n1k.org
Tue Apr 7 21:37:49 EDT 2015


Hi

Now you need to sort out the B, the A+ and the B+ in the Raspberry world. There 
may be more that I have not yet noticed. As far as I can tell, they all are pretty limited
once you get past the tight video integration on the B and B+.

Bob

> On Apr 7, 2015, at 12:41 PM, Didier Juges <shalimr9 at gmail.com> wrote:
> 
> Is the new RPi2 any different in that regard?
> 
> On April 7, 2015 8:17:12 AM CDT, Daniel Mendes <dmendesf at gmail.com> wrote:
>> 
>> Internally the rPI is a ver awkward beast: the CPU is connected to a 
>> GPU, and the GPU is connected to the GPIOs... so lots of jitter and
>> latency.
>> 
>> It was designed to be a video decoder... the CPU is there for testing 
>> and housekeeping. It works, surelly, but it´s not designed to have low 
>> latency and jitter.
>> 
>> Daniel
>> 
>> On 07/04/2015 09:39, Hal Murray wrote:
>>> albertson.chris at gmail.com said:
>>>> In terms of performance, ARM based credit card sized computers do
>> well if
>>>> you can get the PPS to the general purpose I/O pin that interrupts
>> on an
>>>> edge.  the Pi can't do that the BeagleBone Black can and it sell for
>> $45.
>>> What/why can't the Pi do?  I have one handy that is processing a PPS
>> on a
>>> GPIO pin.
>>> 
>>> David Taylor has a web page with all the fine print on how to set it
>> up.
>>> (Thanks.)
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>> 
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
> 
> -- 
> Sent from my Motorola Droid Razr HD 4G LTE wireless tracker while I do other things.
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.



More information about the time-nuts mailing list