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Re: [Discuss-gnuradio] How to instantiate uhd usrp sink in C++

From: ragh
Subject: Re: [Discuss-gnuradio] How to instantiate uhd usrp sink in C++
Date: Fri, 13 May 2011 16:08:59 -0700

Thanks -- that did the trick. Cheers
> Hello again,
> I am having trouble setting the io_type to the uhd_make_usrp_sink function.
> This is likely due to my unfamiliarity with C++.
> The error printed on the screen:
> "terminate called after throwing an instance of 'std::invalid_argument'
>   what(): itemsize mismatch: sig_source_c(1):0 using 8, gr uhd usrp
> sink(2):0 using 2
> Aborted"
> I am connecting the uhd_usrp_sink to a sig_source_c. Here is the troublesome
> code that I use to setup the uhd_usrp_sink:
> uhd::device_addr_t addr; //I assume this defaults to ""
> uhd::io_type_t type(2); //I want this to be COMPLEX_FLOAT32, but don't know

Well thats the problem, there is no enum w/ value 2. Use one of the
build-in enums:

Also, you can pass uhd::io_type_t::COMPLEX_FLOAT32 directly as the
second argument.


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