Previously, I wrote an article on an Introduction to Zephyr , a popular RTOS ( the most popular RTOS?) in the embedded systems space today, ...
Hello World with Zephyr OS
Grandpa, Tell Me The Story Again About The A20 Gate
After my previous article on the keyboard controller interface , there was a global public outcry (well, OK, there was Rothman ) absolutely ...
The Keyboard Controller Interface, 0x60/0x64
The original IBM PC (1981), and its immediate successor, the IBM PC/XT (1983), had keyboards limited to unidirectional communication: data ...
Guide to the SWEBOK v4.0 Has Been Released
The Guide to the Software Engineering Body of Knowledge (SWEBOK) v4.0 was released on October 15, 2024. The Guide is a publication of the ...
Generating EDKII Build Reports
This article describes how the EDK2 build reporting system works. I think it's a little known topic; most people just run a build and s...
From .c to SPI: How Code Becomes Firmware
There is a long and complex series of steps that turn your EFI source code into bits sitting on a SPI part. Ever wonder how that works? I ...
VS Code Plugin for UEFI: Edk2Code
One of the challenges of EDK2 development is its domain specificity. By that, I mean that EDK2 is laser-focused on one, and only one, thing...
Pardon the Interruption... A Brief History of Interrupts
One of the most overloaded terms in the computer industry is interrupt . As in: IRQ5, NMI, APIC, LINT[1:0] , INT 13h , INTR , INT and IN...
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