How SoC hardware is described in code: the fundamental difference between sequential software and parallel hardware, RTL vs behavioural vs structural design, SystemVerilog key constructs, FSMs, testbenches, assertions, and the synthesis step that turns RTL into gates.
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Fretboard Diagrams in Pelican
A walkthrough of the pelican-fretboard plugin -- chord charts, scale boxes, and tab rendered as SVGs directly from fenced code blocks, with a comparison of finger-number and interval-label views.
read moreSoC Article 08: Peripherals and I/O - Connecting the SoC to the world
A survey of the most common peripheral types found in SoCs: GPIO, UART, SPI, I2C, USB, Ethernet, DMA, and interrupt controllers, and how they connect the digital logic inside the chip to the physical world outside it.
read moreSoC Article 07: Clocking, Reset, and Power Domains
The infrastructure that makes a SoC run correctly and efficiently: PLLs for frequency synthesis, clock trees for low-skew distribution, clock domain crossings and metastability, reset sources and synchronisation, and power domains with gating and DVFS.
read moreProxmox: Disable root@pam Login and Create a Sudo User
How to harden a Proxmox VE host by disabling direct root@pam login, creating a named admin user dave@pam, and granting it passwordless sudo access.
read moreProxmox: Setting Up a New User Account with Dotfiles
After creating a non-root Proxmox user, install essential tools (git, stow, gh) and pull in your dotfiles from GitHub to get a familiar shell environment on a fresh host.
read moreCopy and Paste in a Multi-OS System
Unifying copy and paste shortcuts when working across macOS locally and RHEL remotely via OpenText Exceed. Covers terminal emulator behaviour, gVim clipboard mapping, and Karabiner-Elements rules to make Ctrl-Shift-C/V and Cmd-C/V work consistently in both directions.
read moreParametric Knob Maker for OpenSCAD
A fork of aminGhafoory's parametric-knob-maker that adds a generalised round knob module with configurable offset base, chamfers, and grip cutouts. Covers the knob() and hex_knob() modules, the key parameters, and how to combine the result with a BOSL2 screw for a complete thumbscrew assembly.
read moreRFC 2119 Requirements Keywords
RFC 2119 defines a vocabulary of requirement keywords -- MUST, SHOULD, MAY and their negatives -- widely used in IETF specifications and software engineering. This post covers the full RFC 2119 keyword set, the capitalisation convention introduced by RFC 8174, and the key differences from the IEEE normative term conventions covered in the earlier requirements writing post.
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