Welcome to Tasty Business Productions! I make videos about vintage computers and electronics projects. I used to make stop motion animations, claymations, stuff with LEGOs, and my dwarf hamsters. Enjoy the videos, and leave your constructive criticism.
Ok it is over 30 years since last using serial on my Vic20 but you said only 2400 baud I am sure i got 9600 baud out of it? I might have cheated a bit as did write a buffering program in machine code?
Nice project! Out of curiosity, why did you choose a 6850 instead of a 6551? I would have thought the 6551's onboard baud rate generator would be appealing.
Rabbit Hole Computing, but no Usagi Electric... and seeing Prince of Persia tees really made me smile. I played that as a wee kid in the early '90s on a XT 286.
Historically way back when, I too had a parallel keyboard, little brother, I fought that for a little bit and the problem was keyboard bounce unfortunately said keyboard is ‘MIA’ and so I can't reconstruct what I did. I am looking for the missing keyboard, it is built into a green box that some thought was an Apple One (I wish) at the Seattle Science Museum when they held their first computer fair.
I'm sure they can, but for some reason we figured out that 31250 baud was about as fast as it'd go with any reliability. Even then, it still misses some bits sometimes. Question is if its a circuitry limitation, or the punch needs some oil. I even swapped out the Remex punch module with another, and it hung up on the same missing bit.
I used to operate and maintain these in the mid-80s for the USGS worldwide seismic network. Our chassis were about 4times larger than this one to accommodate all of the I/O cards we required. The cards were a pain to get in and out, especially if the thin, sharp metal retaining clips were bent or broken.
