Building Safe and Concurrent Memory-Mapped Register Access in Rust: The mmreg Journey
Introduction
In the world of embedded Linux and hardware programming, direct memory access is both a necessity and a …
Advanced
Decoupling - Path to power integrity
Decoupling simply means the removal of undesired coupling. A simple example is a capacitor placed near power pin of an …
Selecting a PCB stack-up for EMC compliance
Good PCB stack-up is very effective in reducing differential and common mode emission from the board. It is an important …
15 PCB Layout guidelines to achieve EMC requirements
Every designer generally employs a set of PCB layout guidelines while using their engineering judgement. These …
4 Steps to Review the PCB Layout
Following the finalization of the schematic and BOM of a design, the layout phase takes off. While the layout takes a …
6 Steps of Verification for Error-free Schematic
Creating a large design from a given feature set and assuring its success in the very first iteration could be …
Why devmem2 is a Loaded Gun: Solving RCU Stalls with mmreg
In embedded Linux, devmem2 is the standard “hammer” for toggling registers. It mmaps /dev/mem for raw …