FM demodulation with AD9361, python and PYNQ

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1) Introduction

This project provides an example of FM demodulation with AD9361, python and PYNQ. Both software and hardware implementations are explored.

2) Targeted Audience

• People interested in controlling SDR devices with python
• People interested in HLS development on Xilinx Zynq devices
• People interested in PYNQ for agile hardware development and verification

3) Hardware Platform

• ZedBoard
  • xc7z020, with abundant peripherals
• AD-FMCOMMS2-EBZ
  • AD-FMCOMMS2-EBZ is an evaluation board with AD9361 and an FMC connector.

ZedBoard and FMCOMMS2 can be connected together via the FMC interface.

4) Software Platform

• Vivado 2021.2
• Vitis HLS 2021.2
• PYNQ v2.4 with ADI 2019_R1 Linux kernel support
  • see this repository for manuals for building the kernel

5) Performance

• Software implementation
  • takes ~4.6s to demodulate 2.4M samples
• Hardware implementation
  • takes ~321ms to demodulate 2.4M samples