top of page
Search

VGA Next: 640x480 ISA Card
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....
rehsd
Dec 31, 20223 min read
646 views
5 comments


VGA for my 80286
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...
rehsd
Dec 18, 20223 min read
339 views
0 comments


Transitioning 80286 from Breadboard to PCB
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...
rehsd
Dec 13, 20222 min read
338 views
0 comments


80286 Build #2 (Intel Basic System Configuration), Part 4
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...
rehsd
Dec 8, 20221 min read
98 views
0 comments

286, SPI, and a 6522 VIA
I recently added basic SPI support to my 80286 system with the help of a W65C22S Versatile Interface Adapter (VIA). Additional Reading...
rehsd
Nov 24, 20221 min read
96 views
0 comments

Brainstorming... Video Card for 286 System
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...
rehsd
Nov 20, 20224 min read
262 views
2 comments


80286 Build #2 (Intel Basic System Configuration), Part 3
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...
rehsd
Nov 16, 20221 min read
105 views
0 comments


Working on Interrupts
Current Status: RESOLVED I am currently working to get interrupts running on my 286 system. I am starting with a simple low-to-high...
rehsd
Nov 14, 20224 min read
119 views
0 comments

80286 Build #2 (Intel Basic System Configuration), Part 2
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...
rehsd
Nov 6, 20221 min read
243 views
4 comments

80286 Build #2 (Intel Basic System Configuration)
I am starting plans for build #2 of a '286 breadboard-based system. With this build, I hope to implement the full "basic system...
rehsd
Oct 22, 20222 min read
234 views
0 comments


Driving a 1602 LCD with a 286 Processor!
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...
rehsd
Oct 18, 20224 min read
257 views
0 comments


80286 Resources
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...
rehsd
Oct 16, 20221 min read
168 views
4 comments


Start to an 80286 System
I am spinning up a new project -- a breadboard-based 80286. I have not worked with x86 processors from a design perspective before. The...
rehsd
Oct 10, 20223 min read
997 views
2 comments
bottom of page