Master FPGA design with VHDL : Driving an LCD Display

As part of the "FPGA Design Using VHDL" hands-on series, this module focuses on driving character LCD displays — a fundamental interface for embedded systems and user interaction.

In this course, you will:

• Learn how to read and interpret an LCD datasheet

• Understand the internal architecture of an LCD (DDRAM, CGRAM, CGROM, and instruction set)

• Design and implement a fully functional LCD controller in VHDL

• Learn how to connect and map LCD pins to your FPGA using proper I/O constraints

• Apply theoretical knowledge through practical design labs

Practice Labs

• Lab 1: Create a simple demo that displays "HELLO WORLD" using your VHDL LCD controller

• Lab 2: Generate and display a custom character (like a smiley face) on the LCD

• Lab 3: Design a configurable countdown timer displayed in real-time on the LCD, with user input through buttons and switches

By the end, you’ll have the skills to read and understand a technical datasheet and integrate LCD displays into real-world VHDL projects with structured, reusable, and synthesizable code.

Throughout the course, you'll also strengthen your understanding of Finite State Machines (FSMs) and learn to design multiple cooperating FSMs in a single FPGA system. You will practice interfacing, timing, and structuring logic for clarity and reliability — skills essential for professional digital design.

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