Skills Overview

Software: Quartus Prime, ModelSim

Hardware: DE1-SoC Board

Core Concepts: State Machine Design, Binary Multipliers, BCD Conversion, Digital Counters, Sequential Logic.

Technical Overview

• State Machine Control: A state machine was created to manage the control signals for the circuit. It coordinates the counting sequence and triggers the loading of the final product to the output at the correct moment.

• Custom 1-2-3-4 Counter: The design features a specialized counter that follows a 1-2-3-4 sequence, resetting to zero after completing the cycle. This counter's state dictates the timing of the entire operation.

• Timed Register Loading: An 8-bit register captures and holds the intermediate product values during the calculation. The final, stable product is only transferred from this register to the output when the counter reaches the fourth state.

• BCD Conversion for Display: The final 8-bit binary product is converted into a Binary Coded Decimal (BCD) format. This allows the result to be displayed as a two-digit decimal number on the seven-segment display.

Key Concepts on Display

Counter Components

Register Components

Top Level Components

Board Demos

State Machine Logic Worked Out 

Additional Comments

The primary challenges in this project revolved around the timing synchronization between the state machine, counter, and the BCD conversion logic. These issues were successfully resolved through iterative testing and adjustments. The project resulted in a reliable circuit where a custom counter precisely controls data flow, ensuring that the system accurately calculates and displays the final product in a BCD format