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Character Display System Using Seven-Segment Display and Verilog HDL

Category:

Design and FPGA Implementation of Character Display Logic for Seven-Segment Modules.

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    • 💻 Project Hardware/Software
      Verilog HDL source code for display control logic
      Testbench code for simulation
      Bitstream file and FPGA pin constraints
      RTL schematic and waveform outputs

    • 📄 Project Report
      Complete documentation including system architecture, timing diagram, code explanation, simulation results, and hardware setup.

    • 🎥 Project Demo
      Video demonstration showing character display functionality on an FPGA-connected seven-segment module.

    • 🚚 Free Delivery
      Full project bundle delivered in a structured digital format.

    • 💬 Enhanced Customer Support
      Assistance with FPGA configuration, Verilog code modification, simulation support, and report customization.

Project Overview


A seven-segment display is a widely used digital component for visual representation of numeric data in embedded systems, digital counters, clocks, and user interfaces. This project focuses on building a character display controller using Verilog HDL, capable of driving multiple seven-segment digits to display numeric or alphanumeric characters.

The objective is to develop a modular and scalable Verilog design that controls individual segments (a to g) based on input characters or binary values. The design includes segment decoding logic, digit multiplexing, and timing control to manage multiple digits using minimal I/O lines on an FPGA platform.

The project also involves simulation for functional verification, RTL schematic generation, and hardware implementation using an FPGA development board (e.g., Xilinx Spartan or Intel DE series). This hands-on experience enhances understanding of digital logic design, display interfacing, and FPGA-based prototyping.


Project Objectives

  1. Design of Segment Decoder Logic
    Implement a Verilog module to decode 4-bit BCD or ASCII input into 7-segment control signals (a–g).
    Map input values (0–9, A–F, or custom characters) to appropriate LED segments.

  2. Multi-Digit Display Control
    Implement digit multiplexing to drive multiple seven-segment displays using time division.
    Use clock division logic to enable flicker-free and efficient digit scanning.

  3. Verilog HDL Development
    Write modular Verilog code for:
    Decoder logic
    Clock divider
    Digit controller
    Display driver

  4. Simulation and Functional Verification
    Develop a testbench to simulate various inputs and verify character outputs.
    Generate simulation waveforms using tools like ModelSim or Vivado Simulator.

  5. FPGA Implementation
    Synthesize the design and implement it on an FPGA development board.
    Validate hardware output by observing character display on seven-segment modules.

  6. Learning and Application
    Learn practical HDL design principles and timing constraints in display systems.
    Apply the concept in real-time embedded applications such as digital counters, timers, and embedded HMI.

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