Hi Xavier,

Using an adapter might be possible in principle, but it definitely won't
work out the box. It's probably about three orders of magnitude more design
effort to get this working vs using the on-board 1gbe :)

Sorry!
Jack

On Thu, Aug 10, 2017, 1:33 PM Xavier Bosch <bruixa.aburrid...@gmail.com>
wrote:

> Ryan,
> Thank you for your response.
> You are right, I first considered the 1 GbE port but this implies to
> restructure the data packaging, instead of using 64 bits of length, as I am
> right now. I have to change it to 8.
> Besides the fact that there is no much information on the 1 GbE port, but
> there is a tutorial for teh 10 GbE, which made it quite easy to implement
> it.
> Is not that it cannot be done, but design and test would take me a
> significant amount of time.
> If I could solve the problem using an adapter that would be great !  :-)
>
> XB
>
> On Thu, Aug 10, 2017 at 1:22 PM Ryan Monroe <ryan.m.mon...@gmail.com>
> wrote:
>
>> Why not use the 1GbE port on the ROACH2?  No need to go for 10GbE (SFP+)
>> ports
>>
>> On 08/10/2017 01:16 PM, Xavier Bosch wrote:
>>
>> Hi,
>>
>> As I explained in a previous email, I am looking for a way to send the
>> slow-throughput ROACH2 data  (~25 Mbps) to a PC without using the SPF+
>> ports on the PC side.  Mobility is important for the project that I am
>> working, so I want to be able to use any laptop for that purpose without
>> the burden of having to have a 10 GeB SPF+ card
>>
>> I first considered the 1 GbE but this implies a big reconfiguration of
>> the design sine the outputs are 8 bit instead of 64 that the 10 GbE
>> interface uses.
>>
>> Have anyone tried to use a SPF+ to 1 GbE RJ45 connector like the ones in
>> the attached picture?
>>
>> I did some research and I found that the Quad SFP+ Mezzanine board uses
>> the Vitesse VSC8488XJU chip which in theory should allow such
>> connection, as you can see in this spec. sheet
>> http://www.mouser.com/ds/2/523/microsemi_VSC8489-01_PB-883836.pdf
>>
>> So far, I tested 2 different adapters at port 0 with no luck.
>> Does anyone know if this is possible?
>> Is the 1 GbE option enable in the mezzanine board?
>>
>> Thank you,
>> XB
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>>
>> Ryan Monroe
>> PhD Student | Electrical Engineering
>> California Institute of Technology
>> Cahill 255 | 626.773.0805 <(626)%20773-0805>
>>
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