Re: [Discuss-gnuradio] The coming deluge of CPU cycles

[Jason Hecker]

Would an extra bit of hardware such as a PCI card with PLX's PCI9030 
breaking out to the USRP with something like an 80 wire IDE cable be 
suitable for high bandwidth, low latency and lowish cost?

(http://www.plxtech.com/products/io_accelerators/PCI9030/default.htm)

You might be able to do gigabit ethernet if you just pushed out the data 
to and from the USRP in plain old ethernet frames directly to a gigabit 
ethernet port on the PC.  No IP headers and no switches in between.

I know someone who used gigabit ethernet driver chips hooked to an FPGA 
 in order to push lots of digitised SVGA video data down a long length 
of CAT5e for a KVM application.

Eric Blossom wrote:
> On Wed, Jul 26, 2006 at 10:11:14PM -0400, Nikhil wrote:
> > On 7/26/06, address@hidden <address@hidden> wrote:
> > > I'd vote for Gigabit Ethernet as an interface.  It offers the following:
> > Since you mention Gigabit Ethernet, I have to ask... are there any latency
> > issues with it?
>
> Latency with Gig E should be less than we're currently seeing with USB
> given the higher data rate.  Without a doubt, a bus-interfaced USRP
> would have lower latency, however there are lots of trade-offs.
>
> Eric
>
>
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