Reply by Allan Herriman●February 24, 20062006-02-24
On Fri, 24 Feb 2006 04:40:21 -0600, "freechip" <freechip@hotmail.fr>
wrote:
>
>Hi
>I am working on 10 Gb Ethernet project.
>I am going to use a NIOS II in a Stratix II or a Stratix GX. I don't know
>yet.
>I have seen 2 development boards for this high bandwith.
>Normally, the interface SPI (System Packet Interface) is used between the
>fpga and a NPU.
>
>I don't use a NPU but a NIOS II in the fpga!
>So I think I can choose a development board whose within the SPI is not
>supported.
>
>Are you agree with that?
Yes. I know from experience that it is possible to implement 10GbE
interfaces without SPI-4.
If *I* was designing a 10GbE board, I would use an XFP, a 10GbE SERDES
with an XSBI to an FPGA, and avoid the MSA-300 connector that the
evaluation boards you mentioned in another thread use.
That's me though; your needs may be totally different.
MSA-300 would have been a good solution four to five years ago (when
10GbE was young), and may still be a good solution if you don't feel
confident working with 10Gb/s serial signals on your board.
Yet another option to consider is a XAUI (since this is supported by a
fewl FPGA families without needing an external SERDES), however my
reading of the market is that XFP will completely replace XAUI.
BTW, how do you expect a NIOS II to be able to keep up with sending or
receiving almost 30 million packets per second?
Regards,
Allan
Reply by freechip●February 24, 20062006-02-24
Hi
I am working on 10 Gb Ethernet project.
I am going to use a NIOS II in a Stratix II or a Stratix GX. I don't know
yet.
I have seen 2 development boards for this high bandwith.
Normally, the interface SPI (System Packet Interface) is used between the
fpga and a NPU.
I don't use a NPU but a NIOS II in the fpga!
So I think I can choose a development board whose within the SPI is not
supported.
Are you agree with that?