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....
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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