Pyjama Cafe -- Embedded Systems!

The Library Access is a collection of courses focused on lowering the barrier to learning and mastering Embedded Systems software engineering.

Hey there, welcome back!

With BL1 having done the heavy lifting of raw architectural setup, we have arrived at BL2 (Trusted Boot Firmware).

Hello!

In Day 1, we established that TF-A operates as the gatekeeper of the system, and that the boot process is a chain of trust broken into several stages.

Hey there!

In this post, we explore what a function pointer is, what it really means for the machine, how to define it, and how to use it.

The three key skills you need to start your career as an embedded software engineer.

This note explains what a system call is, what you should imagine when trying to understand it and how you can design one.

A Quick Guide to getting up and running with the Soan Papdi FPGA board.

The Design and Deliberation I am a big believer of mental models and visualisations when it comes to learning technical concepts.

I made this project to understand how audio data can be analyzed and displayed visually.

What is so special about this course?

Embedded systems are specialized electronic setups designed to handle specific tasks by sensing environmental conditions, processing the data, and affecting the surroundings through actuators.

Course Highlights Hands-On Approach: Follow along with practical, real-time demonstrations of each step, from source code to a running system.

Let’s now actually understand the need and usage of GDB, OpenOCD, JTAG, SWD, etc.

GDB, OpenOCD, JTAG, SWD etc are terms often thrown around when it comes to debugging in an embedded environment.

ABI and Procedure call standard are backbone to safe-guard compatibility and inter-operability.

Interrupt handling is a very critical part of any architecture.

Syscalls and switching between different exception levels is a very intricate topic filled with minute details which are often overlooked.

If you’ve ever wondered how the tiny chips powering your smartphone or laptop come to life, you’re in for a treat.

ARM-A is the most prevalent architecture out there powering billions of devices.

A System on Chip (SoC) is an integrated circuit that combines multiple components of a computer or electronic system into a single chip.

Nordic nPM1300 PMIC Evaluation Board!

Bootloaders are the unsung heroes of ARM Cortex-M-based systems, ensuring reliable startup, application execution, and firmware updates.

How to learn Firmware Development Every embedded system has a CPU with firmware running on it.

Important: Planned courses are not yet ready for learners and will be added as the current recording concludes.

Most Linux device driver engineers cannot reason about how the Linux kernel boots or how a device driver is loaded.

What does a humble device like a router do?

Pulse-Code Modulation (PCM) is a method used to digitally represent analog signals, particularly audio.

Git and Gerrit are pivotal tools in the software development industry, each serving distinct yet complementary roles that enhance collaboration, code quality, and workflow efficiency.

I am going to explain the anatomy of assembly code using RISC-V as an example since it’s a clean, modern instruction set architecture (ISA) that’s easy to understand.

In this article, I want to talk about the do{..}while(0) construct in C.

various types of scopes.

Delta Timer List Efficient timer management is a crucial aspect of embedded systems, especially in applications requiring low-power operation, RTOS scheduling, or precise event timing.

Storage Classes in C Language In the C programming language, a storage class defines the scope (visibility) and life-time of variables and/or functions within a program.

Tokens In the C programming language, tokens are the smallest individual units of a program that the compiler recognizes and processes during lexical analysis, the first phase of compilation.

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The Design and Deliberation The internet is flooded with coding courses—yet none rival this.

What is so special about this course?

The Design and Deliberation As the embedded software gets more nuanced, the answer to performance and reliability usually becomes clever organization of the data and algorithms that leverage that organization.

Various Abstractions The layers of abstraction all the way down to Nature that lead us to the world of Electronics, Solid State machines and AI.

Harris & Harris Few days back I decided to implement a RISC-V rv32i CPU and deploy it on an FPGA.