Another World

Exploring the Game Boy Sound System: A Deep Dive into Audio Emulation

Understanding and emulating the Nintendo Game Boy's sound hardware with detailed code examples

By Lester Knight Chaykin

Posted on October 14, 2025 12:22 AM · 2 minute read

The Nintendo Game Boy, a handheld gaming console released in 1989, is not only famous for its iconic games but also for its unique sound system. In this post, we will explore the technical intricacies of the Game Boy’s sound hardware and demonstrate how to emulate its audio capabilities using modern programming techniques. Our focus will be on the four sound channels: two square wave channels, one wave channel, and one noise channel, which together create the distinctive chiptune sounds.... [Read More]

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Exploring Power Electronics with a Buck Converter Design

Designing and Implementing a Buck Converter for Efficient Voltage Regulation

By Lester Knight Chaykin

Posted on October 13, 2025 12:17 AM · 2 minute read

In the expansive field of power electronics, buck converters stand out due to their efficiency and ubiquity in applications ranging from battery charging to powering various electronics. In this post, we will delve into the design, simulation, and practical implementation of a buck converter, providing a comprehensive guide to its working principles, design choices, and debugging processes. [Read More]

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Exploring the AHB-Lite Bus Protocol: An FPGA Implementation Guide

A step-by-step guide to implementing the AMBA AHB-Lite protocol in an FPGA environment

By Lester Knight Chaykin

Posted on October 12, 2025 12:17 AM · 2 minute read

In today’s post, we’ll dive deep into the world of system bus architecture, focusing on the AMBA AHB-Lite protocol—a simplified version of the Advanced High-performance Bus (AHB) that is commonly used in high-speed microcontroller units within embedded systems. Our goal is to implement this protocol in an FPGA using VHDL. This guide will cover the design rationale, implementation details, and the debugging process, providing a thorough understanding of the protocol and its application in hardware design. [Read More]

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Mastering SPI Communication with Raspberry Pi and Arduino

A Deep Dive into Setting Up and Debugging SPI Interfaces Between Two Popular Platforms

By Lester Knight Chaykin

Posted on October 11, 2025 12:20 AM · 2 minute read

Serial Peripheral Interface (SPI) is a common communication protocol used in embedded systems for interfacing microcontrollers with various peripherals like sensors, memory devices, and other microcontrollers. In this post, we will explore how to set up and debug an SPI communication link between a Raspberry Pi and an Arduino, two of the most popular platforms in electronics and hobbyist projects. [Read More]

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Exploring FPGA-Based PID Controller Design for Real-Time Applications

A technical walkthrough of implementing a Proportional-Integral-Derivative (PID) controller on an FPGA

By Lester Knight Chaykin

Posted on October 10, 2025 12:21 AM · 2 minute read

In this post, we delve into the design and implementation of a Proportional-Integral-Derivative (PID) controller using Field-Programmable Gate Arrays (FPGA). PID controllers are fundamental in control systems for maintaining an expected output despite various external changes. FPGAs, with their parallel processing capabilities, offer an excellent platform for implementing these controllers to achieve real-time performance. [Read More]

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Exploring CAN Bus: Implementing Robust Vehicle Communication Systems

A deep dive into setting up and coding for Controller Area Network (CAN) communication between microcontrollers

By Lester Knight Chaykin

Posted on October 9, 2025 12:21 AM · 2 minute read

Introduction [Read More]

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Mastering UART Communication with STM32

A deep dive into implementing UART communication for STM32 microcontrollers

By Lester Knight Chaykin

Posted on October 8, 2025 12:21 AM · 2 minute read

UART (Universal Asynchronous Receiver/Transmitter) is a crucial communication protocol in embedded systems, particularly for STM32 microcontrollers. This post delves into the nuts and bolts of implementing UART communication, using the STM32 as a case study. We’ll cover everything from setting up the hardware to the intricacies of the software implementation, providing a comprehensive guide on how to efficiently set up UART communication for your STM32 projects. [Read More]

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