Hi, Marcus,

Thanks a lot for your quick reply!
Then start from where, the integers become floating point numbers?
I'd like to see how they are converted.

Thanks,
Yooxi

They are never floating-point numbers inside the FPGA or on the host interface. For UHD, they get scaled and converted inside the appropriate files. I can't tell you which specific file, but the UHD source code is available, and I'm sure Josh could tell you where the conversion between host-transport-format and gnuradio-format happens with UHD/gr-uhd.

--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org



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