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

[Andy Isaacson]

On Mon, Nov 08, 2010 at 08:28:09AM -0800, John E wrote:
> What about using a FPFGA + High Speed AD Converter to make a DIY one?


It's doable, but expensive and fragile.  Hook it up wrong and your
expensive ADC goes kablooey and you're out $100 for the IC plus the time
to re-work the surface mount part (hopefully it's TQFP and not BGA).

That said, I'm very pleased -- while acknowledging it's limits -- with
the DSO Nano from Seeed Studios!  It's a Creative Commons licensed,
single channel, 1 MHz digital oscilloscope.

http://www.seeedstudio.com/depot/micro-digital-storage-oscilloscopedso-nano-p-512.html

One could imagine a desktop derivative with two channels and a faster
ADC providing almost enough functionality for USB analysis.

-andy