The IEEE-1588 Precision Time Protocol requires a special Ethernet PHY chip 
that
can time stamp packets in hardware.  The LAN8710 Ethernet PHY chip used in
the BBB does not mention this capability in the data sheet, nor is it on 
the lists
I found of PHYs that do have the capability.

--- Graham

==

On Wednesday, January 21, 2015 at 1:20:48 PM UTC-6, roy.be...@gmail.com 
wrote:
>
> joining late on this thread...
>
> I don't know much about IEEE1588. just a simple question: how can I use it 
> on BeagelBone Black?
>
> Thanks!
>
> On Monday, May 5, 2014 at 6:12:34 PM UTC+3, Gerald wrote:
>>
>> The PHY does no manipulation of the data. It is just the interface.
>>
>> Gerald
>>
>>
>>
>> On Mon, May 5, 2014 at 8:23 AM, <user...@gmail.com> wrote:
>>
>>> I know that processor, AM335x used in beaglebone,  supports ieee 1588. 
>>>
>>> Does that PHY on beaglebone also support ieee 1588?
>>>
>>> because I need to do a project about ieee 1588, but I want to realize it 
>>> on beaglebone, 
>>>
>>> Thanks.
>>>
>>> -- 
>>> For more options, visit http://beagleboard.org/discuss
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>>
>>

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