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rehsd
Dec 31, 20223 min read
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....
619 views5 comments
rehsd
Dec 18, 20223 min read
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...
318 views0 comments
rehsd
Dec 13, 20222 min read
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...
325 views0 comments
rehsd
Dec 8, 20221 min read
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...
96 views0 comments
rehsd
Nov 24, 20221 min read
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...
94 views0 comments
rehsd
Nov 20, 20224 min read
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...
231 views2 comments
rehsd
Nov 16, 20221 min read
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...
104 views0 comments
rehsd
Nov 14, 20224 min read
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...
117 views0 comments
rehsd
Nov 6, 20221 min read
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...
240 views4 comments
rehsd
Oct 22, 20222 min read
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...
224 views0 comments
rehsd
Oct 18, 20224 min read
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...
244 views0 comments
rehsd
Oct 16, 20221 min read
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...
164 views4 comments
rehsd
Oct 10, 20223 min read
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...
928 views2 comments
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