Simple Parking System Verilog Implementation

This is a simple parking system simulation designed in Verilog for FPGA implementation. The system has a capacity of 4 parking spots and handles the entry and exit of vehicles, along with displaying relevant status information.

Features

• Entry Sensor: Detects when a vehicle enters the parking lot.
• Exit Sensor: Detects when a vehicle exits the parking lot.
• Full Light: Turns on when the parking lot is full.
• Door Open Light: Indicates when the parking entrance door is open.
• Capacity Management: Tracks the available parking spaces and the number of parked vehicles.
• Seven Segment Display: Shows the current parking location and capacity using a 7-segment display.

Components

1. Frequency Divider Controller

• Divides the clock signal to generate time intervals for controlling the lights and door open logic.
• Uses different frequencies for 1Hz and 2Hz operations.

2. Seven Segment Display

• Displays the current parking location and available capacity.

3. Main Parking Logic

• Manages the state transitions of the parking system, including checking entry and exit, opening doors, and managing parking spaces.

State Machine

The system uses a state machine to handle different states of operation:

• IDLE: Initial state, waiting for sensor input.
• CHECK_ENTRY: When a vehicle enters, checks if space is available.
• CHECK_EXIT: When a vehicle exits, updates the parking spots.
• FULL: The parking lot is full, and no entry is allowed.
• DOOR_OPEN: The door opens to allow entry or exit.

Requirements

• Verilog: The design is implemented in Verilog.
• FPGA: The design is intended to be synthesized and implemented on an FPGA.
• Simulation Tools: Use a Verilog simulator like ModelSim or Vivado for simulation.

Steps to Run the Project

1. Open the Verilog Files

   • Use your preferred FPGA design tool (e.g., Vivado, Quartus).

2. Synthesize and Simulate

   • Synthesize the design.
   • Simulate the system to verify its functionality.

3. Implement on FPGA

   • Deploy the synthesized design to your FPGA board.
   • Connect the required peripherals, such as:
     • 7-segment display
     • Sensors (entry/exit)

Example Simulation

• Entry Sensor:
  When the entry sensor is triggered (vehicle enters), the system checks for available parking space.

• Exit Sensor:
  When the exit sensor is triggered (vehicle exits), the system updates the parking capacity.

License

This project is open-source and available under the MIT License.

Contact

If you have any questions or suggestions, feel free to:

• Open an issue on this repository.
• Create a pull request with your contributions.