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GitHubUnderstanding the Heart of the STM32: The Clock System
The STM32 clock system is its heart. It uses sources like HSI/HSE and the PLL to generate the 72 MHz SYSCLK, setting the pace for the whole MCU.
Articles
16 posts, grouped by topic, newest first in each.
Low-level
Bare-metal ARM, STM32, C and assembly. 4 posts
mini-painel: A Hobby Log About Talking to a Tiny USB Screen in C
A work-in-progress hobby project in C that drives a cheap 3.5-inch USB display from a Mac. What works today, what I'm still poking at, and how to build it.
Free tools for embedded development
A detailed step-by-step guide on how to install free tools for Cortex-M development
In Portuguese
CALLs: how they use the stack
A small article about procedures (functions) and how they use the stack to pass variables. My Portuguese translation of a classic beginner tutorial.
Frontend
React internals, browser libraries and UI experiments. 3 posts
magic-cursor-wand: Give Your Pointer a Wand
A small browser library that draws chalk lines, glitter and soft clouds behind the pointer on any web page. One script tag or one function call is enough to start.
MiniReact: a tiny React-like library to see what happens under the hood
A tiny React-like library I wrote as a take-home exercise, with class components, a virtual DOM, a synchronous setState and a simple diff-and-patch step.
GeoLocation: a take-home challenge built with React, Redux and Sagas
How I turned a recruitment challenge into a small React, Redux and Next.js app that puts you and any website on a map, and the design decisions I wrote down along the way.
Tooling
Testing, automation, dotfiles and the tools around the code. 5 posts
hurl-orchestra: AI first API automation testing
Write each API test step as a small Hurl file, say which steps must pass first, and hurl-orchestra runs them in the right order and shows you which step broke.
Using GNU Make as your Dotfiles manager
It tells you how you can manage your dotfiles without any external dependencies.
The small gotcha that made me feel I know something
The moment I realized I was starting to get the Linux feeling
Migrating from TFVC to Git
How we migrated from TFVC to Git, from the point of view of a .NET developer
karma-typescript-preprocessor2: running TypeScript tests in Karma without temp files
How a small Karma plugin compiled TypeScript in memory with gulp-typescript and a single tsconfig.json, and why its name ends with a 2.
.NET
Notes from the C# and F# years. 4 posts
In Portuguese
Introduction to async and await
A short introduction to async and await in .NET. My Portuguese translation of Stephen Cleary's article.
Covariance and contravariance in C Sharp
One more of those features you use without knowing it exists.
My new challenge: Learning F Sharp
An index of the content I found on the internet about functional programming and FSharp.
Why we are staying with Microsoft's .NET stack
Why I decided not to switch stacks when the opportunity came up inside the company.