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Hardware Implementation of I2C (and Pong) with FPGA

This repository contains Verilog source files for a partial hardware implementation of I2C (write transaction only), and other logic required to play a basic Pong game using the DE0-Nano FPGA on a ST7567S 128x64 LCD display.

For more info, see this blogpost.

Usage

Any of the GPIOs listed below can be changed in DE0_Nano.v.

LCD connections

  • GND → LCD GND
  • 3.3V → LCD VCC
  • GPIO0_24 → LCD SCL
  • GPIO0_26 → LCD SDA (with 4.7k pull-up resistor)

Pushbutton connections

These connections are for the pushbuttons used to move the Pong paddles. Note that each pushbutton requires a pull-down resistor.

  • GPIO1_33 → Pushbutton for Paddle Left Up
  • GPIO1_31 → Pushbutton for Paddle Left Down
  • GPIO1_29 → Pushbutton for Paddle Right Up
  • GPIO1_27 → Pushbutton for Paddle Right Down