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
I'm totally not sure if this is the same error or not, but I've gotten an error
-71 with the USRP before... but only when first plugging it in and then it
typically would not work. Is there anything else on your USB bus? I had a
webcam running on my bus also, that when I turned off and removed the error went
away. I don't know if it was a synchronization or timing issue or what. Not
sure if this is totally related or relevant, I just remember seeing -71
- George
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