The VHDL code provided with this article (“VHDL Code Listing” at www.electronicdesign.com, Drill Deeper 19222) is an example of one way to implement the LED driver in a CPLD.

The repo contains the VHDL code and some C++ code that interfaces with the board and displays the results. If you have that particular board, it would be a good basis for a different project.

This code is intended to run on an FPGA and includes a software-only version of the AVR 8-bit microcontroller core. Essentially, you’ll simulate VHDL code that simulates AVR hardware.

Design and Simulation of 8255 Programmable Peripheral Interface Adapter Using VHDL The 8255A Programmable Peripheral Interface (PPI) implements a general-purpose I/O interface to connect ...

A new technical paper titled “Customizing a Large Language Model for VHDL Design of High-Performance Microprocessors” was published by researchers at IBM. Abstract “The use of Large Language Models ...