Re: [Discuss-gnuradio] USRP and "fusb: (rd status -71) Protocol error"

[Eric Blossom]

On Wed, May 02, 2007 at 06:35:53PM -0500, Brett L. Trotter wrote:
> Eric Blossom wrote:
> > On Thu, May 03, 2007 at 07:27:33AM +1000, stevie.glass wrote:
> >   
> >> Hi
> >>
> >> I've a rev 3 USRP which has the Flex2400 and TVRX daughtercards installed.
> >> At one time the setup worked well - altho I've let it lie a while. This
> >> week I've swapped out a TVRX and replaced it with the DBSRX in
> >> preparation for a new project.
> >>
> >> When I run usrp_fft.py things are fine for a few moments but inevitably
> >> the program crashes with:
> >>
> >> fusb: (rd status -71) Protocol error
> >>
> >> repeatedly written to the terminal. Similar story for usrp_oscope.py and
> >> most other examples.
> >>     
> >
> > I have in the past seen this, but mostly when I've powered down a USRP
> > while the application was still running.
> >
> > You may want to try a different USB cable.  It might be flaky.
> >
> > Eric
> 
> Could this be related to the (now fixed) FX2 power bug on the FPGA that
> surfaced with the Ubuntu Feisty Fawn kernel?

Could be, but I don't think so.

Eric