rehsd

As a follow-up to VGA Next: 640x480 ISA Card, I now have a functional version of an ISA VGA card working. The card supports 640x480 with...

Last October (2022), I started my learning journey to develop a 286 system. See Start to an 80286 System. As of this writing, I have a...

One of my goals for my 286 system is to run MS-DOS at some point (ideally, 6.22). To get to that stage, I have some heavy lifting to do....

As a follow-up to Brainstorming... Video Card for 286 System, I am now working to get my VGA card working in my 80286 system. Initial...

Over the past couple of months, I have been working to build out a breadboard-based 80286 system. See /blog/categories/x86. I plan to...

This is part four of my blog posts on my 286 basic system build. At this stage, PS/2 keyboard input, interrupts, and LCD output are...

I recently added basic SPI support to my 80286 system with the help of a W65C22S Versatile Interface Adapter (VIA). Additional Reading...

I am researching options for a video card for my 80286 system. I will update this page as I learn more. Related: VGA Add-in Card for My...

This is part three of my blog posts on my 286 basic system build. At this stage, PS/2 keyboard input, interrupts, and LCD output are...

Current Status: RESOLVED I am currently working to get interrupts running on my 286 system. I am starting with a simple low-to-high...

Continued from 80286 Build #2 (Intel Basic System Configuration)... Initial PCBs Ordered I ordered a set of PCBs to see if I can get the...

I developed a very basic app to track my IC inventory. In this video, I share a little bit about the app and how I use it.

I am starting plans for build #2 of a '286 breadboard-based system. With this build, I hope to implement the full "basic system...

I have been working on a breadboard-based 80286 system. Recently, I made it to a nice milestone -- I can now drive a 1602 LCD! This is a...

As I come across resources that I find helpful in my '286 build, I will share them here. If you have suggested additions, please drop me...

I am spinning up a new project -- a breadboard-based 80286. I have not worked with x86 processors from a design perspective before. The...

Continued from 16-bit Processor Build - Initial Assembly... 4 September, 2022 I have assembled two new PCBs. One PCB covers add,...