Wednesday, November 30, 2011

Re: [Discuss-gnuradio] Raw Samples from Receiver

> Is there a way of transferring the 32-bit words from the FPGA to a C++
> GR block without the UHD code modifying it?
>
>

You can use the sc16 data type, this will involve a conversion from
item32 to complex<int16> which is basically a byte swap.

You can also use the item32 data type which will just perform endianess
conversion.

Also, both options are available in GRC.

>
> Using wireshark I can see the bytes of interested, but I cannot see
> these in the UHD item32_to_fc32 function. Should I not be able to see
> the bytes as seen in wireshark (UDP payload minus VITA framing) within
> this function?
>
>

All vita payload words pass through the converter function.

-josh

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