Month August 2008

Monitor showing a solid red screen

Video Bringup: Part 2

Video works! Er, sort of. After fixing the HYSNC problem, I experimented with the palette chip, just to prove it was working. With a few bytes’ worth of changes, I was able to turn everything red. The monitor was still…

First video output: vertical lines on a monitor

Video Bringup: Part 1

After an eternity of procrastination and wire-wrapping, I finally finished BMOW’s video subsystem. Well, not quite finished really: the character generator is still missing, but the all the hardware is there to support the pure graphics modes. It’s about time!…

Parts storage drawers

Loads o’ Random Stuff

Yesterday I found an interesting advertisement. A Berkeley student was moving out of the area, and was selling his entire collection of electronics and robotics parts for $50. Of course I had to pick it up, so I’m now the…

Wire Wrapping Pain

I’m beginning to really hate wire-wrapping. Sure, it’s easy to make modifications to the wiring, and the finished result will be nice and sturdy, but it’s SO SLOW to build! Now that my board is getting pretty full, it’s hard…

Video Update

I’ve been distracted by some other projects, and haven’t made as much progress on BMOW as I’d like. They were interesting distractions, at least: I worked on a crystal radio project with my daughter, and did some brainstorming about a…