[Noisebridge-discuss] cheap USB Analyzer, or signal integrity tools?

[John E]

Lattice ECP2 series could - and its a 144LQFP package.
http://www.latticesemi.com/products/fpga/ecp2/index.cfm?source=topnav
<http://www.latticesemi.com/products/fpga/ecp2/index.cfm?source=topnav>
My theory is if it will support DDR2 SDRAM, & SPI4.2 to 750mbps then its
fast enough for USB 2.0
and is only about $20 each FPGA.

Regards,
John

On Mon, Nov 8, 2010 at 9:45 AM, miloh <froggytoad at gmail.com> wrote:

>
>
> On Mon, Nov 8, 2010 at 8:28 AM, John E <neurofog at gmail.com> wrote:
>
>> What about using a FPFGA + High Speed AD Converter to make a DIY one?
>>
>> John
>>
>
> I checked opencores.org, and found a few quasi-related high speed USB
> projects, but It looks like there's a lack of good open hardware/open core
> signal analyzer projects  there (I haven't checked the forums for discussion
> yet).  A new project with the same price range as the ones linked to in this
> thread (~1-5k range) would still be more attractive if it was rooted in open
> design with *nix compatible software components.
>
> It would be great way to get more folks sharing digital design skills and
> developing drivers for things like SANE at Noisebridge.
>
>  Lets sketch it out more, it sounds like a very big project with some
> preliminary questions to answer:
>  1) Why aren't there widely known open source high frequency analyzer
> projects?
>  2) Why are the cheapest high Fq. (nS resolution) signal analyzers still
> around the  $1k price point (and why are the cheaper ones cheap)?
>
> Are there any new families of FPGA's that *are* fast enough for 2.0 and
> still affordable to work with?   Are the analyzers linked previously all
> using asics or what?
>
>
> -r. miloh
>
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