So I made the mistake of having an Amiga book shipped from Canada using Canada Post Expedited USA shipping. It was dropped off at a post office on Nov. 17th in Mississauga, Ontario. Now Mississauga is about 300 miles...
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quick memory check
So on bootup, I now have the hardware do a memory check. I basically take and write out a bunch of values to the memory, and then read them back and make sure they read back properly. The values written are based on...
new read routine implementation started
Last night, until 3am, I spent redoing my read routine to incorporate the method discussed in the comment of the last post. Basically, I use the time between the pulses as an indication of the data. I store 2-bit...
how the amiga reads floppies
So I’ve forever wondered, at the hardware level, how the amiga reads floppy disks. I’ve gotten bits and pieces over the years, but I’ve never really understood the bulk of it. So there are four main...
Interesting article and comments
Someone on sci.electronics.design mentioned the following article: This is a Floppy Disk Data Separator Design Guide for DP8473 which is a floppy disk controller like the infamous NEC 765 controller. It’s a...
inital results on error correction
While I have yet to actually implement the full-scale error correction as I want to, I did some manual tests today. I basically took a track that I was erroring out on, and swapped in 1-bit away values for the bad bytes...
