Re: [Discuss-gnuradio] usrp2_fft.grc hangs when executed

[Elvis Dowson]

On May 16, 2011, at 3:20 AM, Marcus D. Leech wrote:

> On 05/15/2011 07:11 PM, Elvis Dowson wrote:
>> Reducing the refresh rate to 5fps makes it a bit more responsive. A value of 
>> 10 makes it un-responsive. My sample rate is 3.125M sps using a USRP2, using 
>> the UHD drivers.
>> 
> usrp2_fft.py was written for "classic" -- did you modify it for UHD? 
> Also, you reported a decimation
>  of 16, which gives 6.25Msps with USRP2.

Yes, I modified it for UHD. A sample rate of 3.125Msps and a refresh rate of 5 
fps worked just barely. If I reduced the sample rate to 800k it worked fine at 
15fps. Anyway, my T42p laptop is pretty under powered for this type of stuff. 
:-)

Elvis Dowson