Tag: C programming

in Embedded, OS

SPI Interview Questions : In this article, we will explore key interview questions and answers related to the SPI (Serial Peripheral Interface) protocol. SPI is a synchronous serial communication protocol widely used in embedded systems for data exchange between microcontrollers and peripheral devices such as sensors, memory modules, and displays. Understanding SPI and being able…

What is Scheduling in QNX? | Master Scheduling Policy guide 2026

May 5, 2025

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in Embedded, QNX OS

Scheduling in QNX : In a real-time operating system like QNX Neutrino, scheduling is the brain behind who runs the CPU and when. Think of it as a smart traffic controller — it makes sure every thread (a lightweight process) gets a fair chance to run, and that critical tasks run exactly when they need…

Master Power-On Checks and Voltage Rails Beginner’s Guide 2026

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Power-On Checks and Voltage Rails Beginner’s Guide 2025 : When you build or work with electronic circuits or embedded systems, one of the first things to understand is how to safely power up your system and verify that it’s working correctly. That’s where Power-On Checks and Voltage Rails come into play. This article will guide…

Multimeter (Voltage, Current, Continuity) Master Beginner-Friendly Guide 2026

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A multimeter is a must-have tool for electronics beginners. It helps you measure voltage, current, resistance, and continuity, and is essential for diagnosing and troubleshooting circuits. 1. Understanding the Parts of a Multimeter Most digital multimeters (DMMs) include: 2. How to Set Up the Multimeter 3. Measuring Voltage What is it? Voltage is the potential…

Master TDD Test-Driven Development for Beginners: A Comprehensive Guide 2026

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TDD Test-Driven Development : is a software development process that emphasizes writing tests before writing the actual code. It may sound counterintuitive at first, but it offers numerous benefits, especially for beginners who are looking to improve code quality, reduce bugs, and develop a clear understanding of the desired functionality of their software. In this…

Master Unit Testing Frameworks: Google Test 2026

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Unit Testing Frameworks : Unit testing is a software development practice where individual units or components of a program are tested to ensure they behave as expected. In embedded systems, especially when working with complex software, it becomes critical to verify the correctness of small parts of the code independently. Unit testing frameworks help automate…

Master Static Code Analysis Using Cppcheck | Beginner-Friendly Guide 2026

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Static code analysis is a method of examining software code without executing it. It is a technique used to find potential errors, bugs, security vulnerabilities, and inefficiencies in code early in the development process. This is especially valuable in embedded systems and software development, where bugs can be costly, hard to trace, and difficult to…

Master Integration Testing Basics | Beginner-Friendly Guide (2026)

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Integration testing is a crucial step in the software development process, ensuring that different modules or components of a system work together as expected. Unlike unit testing, which tests individual components in isolation, integration testing focuses on the interaction between these components. In this tutorial, we’ll break down integration testing for beginners, explaining its importance,…

Master System Testing | Beginner-Friendly Guide 2026

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