Forums

Cheap Ethernet PHY boards?

Started by radarman May 16, 2009
I have a couple of Altera dev boards - a Terasic DE2, and an old
Stratix "SmartPack"; and I really want to play with an Ethernet MAC
core. The trouble is, the DE2 has a full-blown Ethernet controller -
and the SmartPack has nothing.

I'm essentially looking for a board that has MII/GMII on one side, and
an RJ-45 connector on the other. These exist, but cost hundreds of
dollars. (the EVB-LAN8700 would be perfect, if it wasn't nearly $300!)
Does anyone know of a cheap (~$50) board that essentially does the
above? 10/100 would be fine.

If I can't find one, and have to roll one, would there be any interest
in it?
On May 16, 6:09=A0am, radarman <jsham...@gmail.com> wrote:
> I have a couple of Altera dev boards - a Terasic DE2, and an old > Stratix "SmartPack"; and I really want to play with an Ethernet MAC > core. The trouble is, the DE2 has a full-blown Ethernet controller - > and the SmartPack has nothing. > > I'm essentially looking for a board that has MII/GMII on one side, and > an RJ-45 connector on the other. These exist, but cost hundreds of > dollars. (the EVB-LAN8700 would be perfect, if it wasn't nearly $300!) > Does anyone know of a cheap (~$50) board that essentially does the > above? 10/100 would be fine. > > If I can't find one, and have to roll one, would there be any interest > in it?
Have you checked Xilinx EVMS? They have a starter kit that may be of your insterest : www.xilinx.com/s3estarterkit (~$150). - Sebastien
There is a DP83848 based module in our product range that might do
what you want. It will probably need physical adaption. There isn't
much info on our website on this but contact our sales team for more
details. Details on our website www.enterpoint.co.uk.

Price on this module approximately $40 + carraige and we do appear to
have stock.

John Adair
Enterpoint Ltd.


On 16 May, 06:09, radarman <jsham...@gmail.com> wrote:
> I have a couple of Altera dev boards - a Terasic DE2, and an old > Stratix "SmartPack"; and I really want to play with an Ethernet MAC > core. The trouble is, the DE2 has a full-blown Ethernet controller - > and the SmartPack has nothing. > > I'm essentially looking for a board that has MII/GMII on one side, and > an RJ-45 connector on the other. These exist, but cost hundreds of > dollars. (the EVB-LAN8700 would be perfect, if it wasn't nearly $300!) > Does anyone know of a cheap (~$50) board that essentially does the > above? 10/100 would be fine. > > If I can't find one, and have to roll one, would there be any interest > in it?
radarman <jshamlet@gmail.com> wrote:
(snip)
 
> I'm essentially looking for a board that has MII/GMII on one side, and > an RJ-45 connector on the other. These exist, but cost hundreds of > dollars. (the EVB-LAN8700 would be perfect, if it wasn't nearly $300!) > Does anyone know of a cheap (~$50) board that essentially does the > above? 10/100 would be fine.
The Spartan3E board has built in 10/100 PHY, supply your own MAC. That is $150, so more than $50, less than $300. -- glen
On May 16, 6:12=A0am, glen herrmannsfeldt <g...@ugcs.caltech.edu> wrote:
> radarman <jsham...@gmail.com> wrote: > > (snip) > > > I'm essentially looking for a board that has MII/GMII on one side, and > > an RJ-45 connector on the other. These exist, but cost hundreds of > > dollars. (the EVB-LAN8700 would be perfect, if it wasn't nearly $300!) > > Does anyone know of a cheap (~$50) board that essentially does the > > above? 10/100 would be fine. > > The Spartan3E board has built in 10/100 PHY, supply your > own MAC. =A0That is $150, so more than $50, less than $300. > > -- glen
I'm already set up for Altera, though the Spartan 3e board is tempting. However, I've priced the parts for a board at under $20. In particular, Micrel has a 10/100 Phy for ~$6.50, and a Magjack RJ45 with integrated magnetics goes for about $9. That's really about it, save for a few biasing resistors, bypass caps, ferrite beads, and some header strip. The PCB's will likely cost a bit, but I suspect a simple 4-layer board will suffice - which most prototype places can do for cheap. Hopefully, if the boards work, I can sell the extras to recoup a bit of the cost.