Re: [Discuss-gnuradio] E312 GNU Radio Error

[Nate Temple]

Hi Isai,

This error is due to generating the Python file with a different version of GNU Radio than what is running on the E3xx.

To resolve the error, you need to modify the generated Python file. 

Edit the line 46 to remove the last parameter "-1" from the zeromq.psuh_sink() call:

self.zeromq_push_sink_0_0_0 = zeromq.push_sink(gr.sizeof_gr_complex, 1, "tcp://*:9999, 100, False, -1) 

to be:

self.zeromq_push_sink_0_0_0 = zeromq.push_sink(gr.sizeof_gr_complex, 1, "tcp://*:9999, 100, False) 

There is two ZMQ Sinks/lines of code that will need this change.

Another work around is to generate the Python file with the "grcc" utility on the E3xx.

Regards,

Nate Temple

On Dec 27, 2017, at 11:25 AM, Isai <address@hidden> wrote:

Hello all,

I had a question regarding an error I am getting when trying to implement the KB example for streaming data using GNU radio. The link to the tutorial is https://kb.ettus.com/Streaming_processed_data_from_the_E31x_with_GNU_Radio_and_ZMQ . I am currently a student working on a final project that will include the use of the USRP and I very new to SDR. Any help would be greatly appreciated as I have download the .grc files straight from the tutorial ran them and got the error. I also built the GRC program by hand thinking maybe it would solve the problem but it did not. I am unsure on how to proceed, thank you for your time and help. 

-Isai Rocha

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