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

Daniel Mendes dmendesf at gmail.com
Tue Apr 7 09:17:12 EDT 2015

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.


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.)

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