I was not sure how to upgrade the UHD, so I updated my OS and it seemed to
work. Just to be sure we're talking about the  same thing, this is the full
description of the error;
terminate called after throwing an instance of 'uhd::assertion_error'
  what():  AssertionError: accum_timeout < _timeout
  in uint64_t radio_ctrl_core_3000_impl::wait_for_ack(bool)
  at /home/ashraf/uhd/host/lib/usrp/cores/radio_ctrl_core_3000.cpp:230


On Tue, Jun 16, 2015 at 10:15 AM, Marcus Müller <[email protected]>
wrote:

>  Dear Ashraf,
>
> that error is not very common. It means that your PC didn't get an "OK"
> from the USRP in time.
> Did you get "O", or "U", or "S" printed to your console?
> If you did, did upgrading UHD help?
>
> If it didn't, please contact [email protected].
>
> Best regards,
> Marcus
>
>
> On 06/16/2015 03:58 PM, Ashraf Younis wrote:
>
> I see, I will try to update my system and hope that it works. Thank you.
>
> On Tue, Jun 16, 2015 at 9:31 AM, madengr <[email protected]> wrote:
>
>> Well googling that error points to something with the B200.  I ran it last
>> night with latest UHD/GR and it runs fine.  Python has no issues with 1000
>> length list of floats.
>> Lou
>>
>>
>> Ashraf Younis wrote
>> > Amazing, this seems to do what I needed. Thank you. It seems my list is
>> > too
>> > big because I get a RuntimeError: AssertionError: accum_timeout <
>> > _timeout.
>>
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://gnuradio.4.n7.nabble.com/Scanning-desired-frequenies-tp54189p54210.html
>>  Sent from the GnuRadio mailing list archive at Nabble.com.
>>
>> _______________________________________________
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>>
>
>
>
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