SystemsGuide
Unsafe Rust Explained and What the Keyword Really Promises
A guide to unsafe Rust: what the keyword allows, the contract it creates, how to wrap it in a safe API, how to check it with Miri and where it is actually needed.
15 min read
Topic
Systems
Close to the metal: memory layout, no_std, unsafe, FFI and the microcontroller on your desk.
Systems
Rust Panics Without Std and Choosing a Panic Handler
In no_std a panic handler is mandatory. Compare panic-halt, panic-abort, panic-probe and a custom handler, and how panic = abort and the core panic machinery fit together.
3 min read
SystemsGuide
Booting a Minimal Kernel in Rust With Bootloader and Qemu
Boot a minimal Rust kernel in QEMU: a no_std crate, the bootloader crate, a disk image, a panic handler and writing text to the serial port in a few dozen lines.
15 min read
SystemsGuide
Writing an Operating System Kernel in Rust a Roadmap
A plan for writing an operating system kernel in Rust: the order of milestones from booting to a shell, which crates help, what to read and the traps at each stage.
15 min read
Systems
RTIC Versus Embassy for Real Time Embedded Rust Compared
RTIC schedules interrupt driven tasks with compile time priorities; Embassy runs async tasks cooperatively. Compare the models, resource sharing, latency and when each fits.
3 min read
Systems
Memory Mapped Registers in Rust and Why PACs Exist
Memory mapped registers are fixed addresses you read and write with volatile access. See how a PAC generated by svd2rust wraps them safely, and how HALs build on top.
3 min read
Systems
Debugging Embedded Rust With Probe rs and Defmt Logging
Debug embedded Rust with probe-rs: defmt logging over RTT, panic-probe, breakpoints in VS Code, reading hard faults and what to check when nothing prints.
3 min read
SystemsGuide
Rust on STM32 Microcontrollers With Probe RS Tooling
Program an STM32 in Rust with probe-rs: pick the target, create a project from the cortex-m template, use embassy-stm32 or a PAC and HAL, flash, log and debug.
14 min read
SystemsGuide
Rust on the Raspberry Pi Pico With Embassy Step by Step
Blink an LED on a Raspberry Pi Pico in async Rust with Embassy: toolchain target, memory.x, probe-rs runner, the main task and a second task with a button.
15 min read
Systems
Embedded HAL Traits in Rust and Writing Portable Drivers
embedded-hal defines traits for pins, buses and delays so one sensor driver runs on any chip. Write a driver generic over I2C and see how to test it with a mock.
2 min read
Systems
No Std Rust Explained and What You Lose Without Std
no_std removes the standard library and leaves core. See what you lose, what core and alloc still give you, and how to write crates that work both ways.
2 min read
SystemsGuide
Embedded Rust From Blinking an LED to Real Firmware
A guide to embedded Rust from the first blinking LED to firmware structure: no_std, the HAL traits, runtimes, flashing, debugging and size.
15 min read
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