Author: Raj Kumar
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Master ARM Cortex-M Exception Handling (2026)
What is Exception Handling in ARM Cortex-M? ARM Cortex-M Exception Handling: In ARM Cortex-M, exceptions are interrupts and system events that cause the processor to temporarily stop the main program and execute a special function (handler) to deal with it. ✅ Cortex-M CPUs have a built-in Nested Vectored Interrupt Controller (NVIC) that supports exceptions, prioritization,…
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Understanding Stack Memory in ARM Cortex-M4
Stack Memory in ARM Cortex-M4 : Stack memory is an essential part of how microcontrollers like the ARM Cortex-M4 manage temporary data, especially during function calls and interrupt handling. If you’re just starting out in embedded systems or working with ARM processors, understanding stack memory is a must. What is Stack Memory? Stack memory is…
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Master Bus Protocols and Bus Interfaces | Beginner-Friendly Guide 2026
What is a Bus? Bus Protocols and Bus Interfaces : In embedded systems and computer architecture, a bus is a communication system that transfers data between components like the CPU, memory, and peripherals. Imagine it like a highway for data where cars (data) travel between cities (devices). What is a Bus Protocol? A bus protocol…
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Master ARM Cortex Memory Map (2026)
ARM Cortex Memory Map : This article provides an in-depth exploration of the System Address Map of the ARM Cortex-M4 processor, covering the entire 4 GB memory space from 0x00000000 to 0xFFFFFFFF. Through a clear breakdown of each memory region—including Code, SRAM, Peripheral, External RAM, External Devices, Private Peripheral Bus, and Vendor-Specific Memory—readers gain a…
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What are ARM State and Thumb State in ARM Cortex M4 Processor? | Master Beginner Friendly Guide 2026
ARM State and Thumb State in ARM Cortex M4 Processor : This tutorial provides a simple, beginner-friendly explanation of ARM state and Thumb state in ARM Cortex-M processors. You’ll learn what these two instruction sets are, why Cortex-M processors only use Thumb state, and how the T-bit (Thumb bit) plays a critical role in function…
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Understanding Thread Mode, Handler Mode, Privileged & Unprivileged Modes in ARM Cortex-M4 Processor
When working with ARM Cortex-M processors like STM32, understanding the different processor modes is crucial. These modes define how the processor executes code and manages system access. In this article, we’ll break down the four essential concepts: Whether you’re building a bare-metal embedded system or working with an RTOS, this beginner-friendly guide will help you…
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Master 30 I²S Protocol Interview Questions and Answers | Beginner Fredinly Tutorial 2026
I²S Protocol Interview Questions : If you’re preparing for an embedded systems interview, especially for roles involving audio data, you’ll likely face I2S-related questions. Let’s break it down in a simple and beginner-friendly way so you can understand and answer confidently. What is I2S? I2S (Inter-IC Sound) is a serial bus interface standard used to…
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Character-Device Drivers QNX | QNX Tutorials 2026
Character-Device Drivers QNX : When you type something on your keyboard, the character-device driver is the first part of the system that reads and understands your input. The specific driver used depends on your hardware. To find out which one applies to your setup, check the documentation for devc-* drivers in the Utilities Reference. Note:…
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Master Computer Memory SSC CGL IBPS Delhi Police 2026
Published by: Govt Prep Master | https://embeddedprep.com/Category: Computer Awareness for Competitive Exams Computer Memory SSC CGL IBPS Delhi Police 2025 : When preparing for competitive exams or enhancing your computer fundamentals, understanding computer memory is crucial. It plays a vital role in system performance and program execution. This blog post presents a structured overview of…
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Master What Is Flash Memory? Types, Uses & Examples Explained | SSC CGL Computer Delhi Police 2026
Welcome to What Is Flash Memory? Types, Uses & Examples Explained SSC CGL Computer Delhi Police beginner-friendly tutorial on Flash Memory, specially crafted for students, tech enthusiasts, and aspirants preparing for competitive exams like SSC, RRB, Banking, and other government job tests. In this tutorial, you will learn:✅ What Flash Memory is and how it…