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Re: [Discuss-gnuradio] USRP and "fusb: (rd status -71) Protocol error"
From: |
Brett L. Trotter |
Subject: |
Re: [Discuss-gnuradio] USRP and "fusb: (rd status -71) Protocol error" |
Date: |
Wed, 02 May 2007 18:35:53 -0500 |
User-agent: |
Thunderbird 1.5.0.10 (Windows/20070221) |
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
>
>
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>
Could this be related to the (now fixed) FX2 power bug on the FPGA that
surfaced with the Ubuntu Feisty Fawn kernel?