Hardware Accelerated Guitar Tuner

Overview

The Hardware Accelerated Guitar Tuner is a group project created for SFU ENSC 452 - Advanced Digital System Design. This project uses the Zedboard FPGA platform.

File Hierarchy

• Vitis - The main folder containing all Vitis related code
  • audio - Audio processing core related functionality
    • src - All .c and .h files relating to the audio processing core
  • video - Video processing core related functionality
    • src - All .c and .h files relating to the video processing core
      • assets - raw .data files used for displaying visuals to GUI
  • final_tuner - The main vitis project folder
  • design_1_wrapper - The platform folder
• Vivado - The main folder containing all Vivado related functionality
  • audio_fft - The main Vivado project folder
  • ip_repo - The ip repository folder
    • custom_hps_1.0 - HDL and IP project for the custom HPS block
    • vga_controller_ip -Tutorial provided VGA controller IP
    • xilinx.com_ip_edge_detect_1.0 - Xilinx provided Edge Detect IP
    • zed_audio_ctrl - Tutorial provided audio controller IP
  • sources - Audio Tutorial provided drivers and resources
• testing_scripts - All testing and matlab related resources
  • ModelSim - ModelSim project used for verifying custom HPS block
  • sampleNotes - Repository of sample recordings used for testing
• assets - Visual assets used in the final demo version

IP Cores Used

• AXI-Stream FFT (8192 point)
• AXI DMA
• AXI GPIO
• Zedboard Audio Controller
• AXI-Stream VGA Core
• HPS Algorithm Core (custom)

Features

• Mic or Line-In input
• Continuous detection with resolution < 1 Hz
• Ability to switch between sharp and flat modes
• Frequency analysis support from 50 Hz to 500 Hz

Requirements

• Zedboard
• Vivado 2020.2
• Vitis 2020.2