[USRP-users] Runtime error

Marcus D. Leech mleech at ripnet.com
Wed Jul 1 20:37:54 EDT 2015


On 07/01/2015 05:34 PM, Neel Pandeya via USRP-users wrote:
> Hello Ashraf Younis:
>
> Which USRP are you using? It looks like you have a B-series device, 
> and you're using USB 2.0.
>
> Your PasteBin link has gone stale. Could you please re-post it?
>
> --Neel
>
>
>
>
> On 24 June 2015 at 06:42, Ashraf Younis via USRP-users 
> <usrp-users at lists.ettus.com <mailto:usrp-users at lists.ettus.com>> wrote:
>
>     Hello, I am having trouble figuring out what is wrong with my
>     code. I run it a I get this error:
>
>     RuntimeError: 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
>     after few seconds of running it. Somtimes I don't get the error
>     but the program continues to run and it does not stop. This is its
>     output:
>
>     linux; GNU C++ version 4.8.4; Boost_105400;
>     UHD_003.009.git-186-g4082c748
>
>     -- Operating over USB 2.
>     -- Initialize CODEC control...
>     -- Initialize Radio control...
>     -- Performing register loopback test... pass
>     -- Performing CODEC loopback test... pass
>     -- Asking for clock rate 50.000000 MHz...
>     -- Actually got clock rate 50.000000 MHz.
>     -- Performing timer loopback test... pass
>     -- Tune Request: 1830.200000 MHz
>     --   The RF LO does not support the requested frequency:
>     --     Requested LO Frequency: 1830.200000 MHz
>     --     RF LO Result: 1830.199999 MHz
>     --   Attempted to use the DSP to reach the requested frequency:
>     --     Desired DSP Frequency: -0.000001 MHz
>     --     DSP Result: -0.000001 MHz
>     --   Successfully tuned to 1830.200000 MHz
>     -- 
>     Using Volk machine: ssse3_32_orc
>     Starting GSM channel scan
>     OO
>
>     Is there an error in my program or is there something that I have
>     to configure in my USRP. This is my program(I censored the
>     personal info but I used comments to describe my intentions):
>
>     http://pastebin.com/xMYh1QfU
>
Also, do simple programs like rx_samples_to_file work as expected at 
your desired sample rates?



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