Hi
The SATA type connector was installed as an option to route GTX normally
routed to AMC. Selection is by coupling capacitors placement.
The AMC-SFP adapter is another, better option. As I wrote before, my
colleague designs such thing for another project and we can use it.
Greg
On 5 July 2016 at
On Tuesday, June 28, 2016 04:00 PM, Grzegorz Kasprowicz wrote:
For Sayma board to not waste precious GTX we will add PHY with
1000Base-X. We can also route it to SATA connector and provide dedicated
SATA-SFP cables. Most of these PHYs apart from RGMII to 1000base-X offer
1000base-T, so we can als
we can use Si instead of CDCM61004RHBT
Greg
On 29 June 2016 at 04:56, Sébastien Bourdeauducq wrote:
> On Tuesday, June 28, 2016 04:02 PM, Grzegorz Kasprowicz wrote:
>
>> For synchronisation over fibre we can use existing White Rabbit core.
>> The card requires only 2 VCXO oscillators and FPGA lo
On Tuesday, June 28, 2016 04:02 PM, Grzegorz Kasprowicz wrote:
For synchronisation over fibre we can use existing White Rabbit core.
The card requires only 2 VCXO oscillators and FPGA logic. The WR core
consumes 50% of small Spartan 45T. It ensures 1ns timing accuracy.
We probably won't use Whi
abs.hk; Greg
> Kasprowicz
> > ; Slichter, Daniel H. (Fed) <
> daniel.slich...@nist.gov>
> > Subject: Re: [ARTIQ] uTCA backplane driver choices
> >
> > On Wednesday, June 22, 2016 04:47 AM, j arl wrote:
> > > Use standard RGMII to SERDES chip for Port 0 an
For synchronisation over fibre we can use existing White Rabbit core.
The card requires only 2 VCXO oscillators and FPGA logic. The WR core
consumes 50% of small Spartan 45T. It ensures 1ns timing accuracy.
On 24 June 2016 at 20:39, Slichter, Daniel H. (Fed) <
daniel.slich...@nist.gov> wrote:
> >
> On Thursday, June 23, 2016 11:09 PM, Slichter, Daniel H. (Fed) wrote:
> > One question raised by David Allcock is whether the Sayma cards can be
> > run standalone (e.g. in a smaller crate on table with no Metlino).
> > It would definitely be useful for the Sayma cards to have the
> > necessary c
On Thursday, June 23, 2016 11:09 PM, Slichter, Daniel H. (Fed) wrote:
One question raised by David Allcock is whether the Sayma cards can
be run standalone (e.g. in a smaller crate on table with no Metlino).
It would definitely be useful for the Sayma cards to have the
necessary connectivity (e.g
On Thursday, June 23, 2016 09:43 PM, j arl wrote:
Ethernet is not required on the Sayma cards.
DRTIO is the first-choice for interfacing with Sayma cards. Supporting
Ethernet on Port 0 provides risk mitigation for DRTIO
It is unlikely that Ethernet would work but not the transceiver link
10:28 PM
> To: j arl ; artiq@lists.m-labs.hk; Greg Kasprowicz
> ; Slichter, Daniel H. (Fed)
> Subject: Re: [ARTIQ] uTCA backplane driver choices
>
> On Wednesday, June 22, 2016 04:47 AM, j arl wrote:
> > Use standard RGMII to SERDES chip for Port 0 and Port 1 which works
> >
>
>
> Ethernet is not required on the Sayma cards.
DRTIO is the first-choice for interfacing with Sayma cards. Supporting
Ethernet on Port 0 provides risk mitigation for DRTIO and an alternate
interface for stand-alone operation of Sayma.
> Use standard RGMII to SERDES chip for Port 0 and Port 1
On Wednesday, June 22, 2016 04:47 AM, j arl wrote:
Use standard RGMII to SERDES chip for Port 0 and Port 1 which works
with open source Ethernet MAC. For example Micrel KSZ9021.
Ethernet is not required on the Sayma cards. It would add a relatively
small amount of cruft, except that you now ne
What differential logic is best for for the uTCA backplane? This
impacts the Ports that connect the MCH to AMC boards. The relevant
uTCA Ports are the following.
Port 0 and Port 1 for Gbit Ethernet
Port 4 for 10.3125 Gb/s GTX transceiver
Ports 5-7 for general purpose I/O
TCLKA, TCLKB and TCLKC for
I tend to go with Greg here; I think the edges on LVDS are just not as sharp as
you would like for clock distribution, and for the GTX transceiver you will
want whatever is most compatible (I don't have experience here). CML or LVPECL
would be the way to go for the others.
> -Original Me
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