Nexys A7 projects

Projects written with free software Vivado using VHDL (no Verilog).

Board details

Projects for the Nexys A7 board from Digilent.

Part: AMD/Xilinx XC7A100T-1CSG324C

• FPGA Features
  • Internal clock speeds exceeding 450MHz
  • On-chip analog-to-digital converter (XADC)
  • Programmable over JTAG and Flash
• System Features
  • USB-JTAG programming circuitry
  • 16 MB QSPI Flash
  • Powered from USB or any 7V-15V source
  • microSD card connector
• System Connectivity
  • 10/100 Mbps Ethernet
  • USB-UART Bridge
• Interaction and Sensory Devices
  • 3-axis accelerometer
  • PDM microphone
  • PWM audio output
  • Temperature Sensor
  • 8 digit seven-segment displays
  • USB HID for mice, keyboards, and memory sticks
  • 16 Switches
  • 16 LEDs
  • 2 tri-color LEDs
  • 12-bit VGA output
• Expansion Connectors
  • 4 Pmod connectors
  • Pmod for XADC signals

Software

Download and install Xilinx/AMD Vivado ML Standard (standard edition is free, but requires and account).

Project setup

Add the board in Vivado:

• Menu: Tools -> Vivado store
• Tab: Boards
• Click the refresh button to update the boards
• Install: Digilent Nexys A7-100T

Create project:

• Menu: File -> Project -> New
• Enter project name and location
• Select RTL project
• Select board: Nexys A7-100T
• Finish
• Open project settings
  • General:
    • Target language: VHDL
  • Bitstream
    • Enable -bin_file
• Open the hardware manager
  • Connect to the hardware
  • Add the flash program memory:
    • Click 'Add Configuration Memory Device' in the project tree
    • Select: s25fl128sxxxxxx0-spi-x1_x2_x4
    • Click OK
• Add the project files to the Vivado project

Links

Product page: https://digilent.com/reference/programmable-logic/nexys-a7/start

Reference manual: https://digilent.com/reference/programmable-logic/nexys-a7/reference-manual

AMD/Xilinx Vivado: https://www.xilinx.com/developer/products/vivado.html