Exploring RFNoC with the UHD Python API
summary
Demonstrates using the UHD 4.0 Python API to load a custom RFNoC image on a USRP N310 over SFP+ and build, configure and commit RFNoC graphs at runtime. Shows a radio→DDC→streamer path with 125 MHz input and 5 MHz output, notes an odd decimation of 25 causing passband roll‑off and fixes it by setting decim=24. Streams ~26 million samples (≈5 s), and uses Jupyter to rewire FFT and FIR blocks on the crossbar without resynthesizing the FPGA.
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chapters (5)
- 0:00Start
- 1:03About the Presenter
- 1:57RFNOC 4.0 Architecture
- 3:53The UHD Python API
- 13:37Levels of RFNOC Block Controller Abstraction
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