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Amiga Floppy

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.  In some cases, it appeared...

keith
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Latest articles

Amiga Floppy

review of timing details

I set up a couple more hardware flags on my software so I could see things like, edge detections vs rollover detections vs PC transmissions, etc. It all looks perfect to me. I took maybe a dozen different samples...

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Amiga Floppy

switched servers

Well, I’ve switched servers at my webhost.  I’ve updated WordPress and Gallery.  No major changes, but both of these updates fix security vunerabilities.  I’ve been wrapped around this for a...

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Amiga Floppy

out of the country!

I just left Amsterdam, and now am spending some time in Brussels.
I have some preliminary photos up in the gallery.

Floppy project is still on my mind!
 

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Amiga Floppy

basic schematic

I put up a rough schematic of my design.  It’s not perfect, and will be updated in the near future, but if you are interested.
Click the image below for a full size image.

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Amiga Floppy

current code plus recent progress

Although its ugly, the new code is here. This shows the entire ISR in assembly now. I do like it much better. Tonight I happened to transfer a track that has a good sector. The sector header passed checksum, as did the...

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Amiga Floppy

mail issues from the blog

I dunno how or why, but there were problems with the outbound mailing from my blog. In any even, I’ve added a new plugin, and everything is working much better. If there are any complaints, problems, etc please...

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Amiga Floppy

current results

Now that I have a portion of Marco’s old code implemented, I’ve run an output file from my SX through it. It’s one whole track from a capture of a DiskMonTools. It’s almost 14k long, which sounds...

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Amiga Floppy

too many variables

I think that’s really the problem I’ve been facing with this floppy project. Trials and tribulations indeed. Or at least trial and error, with stress on the error part. There are probably less than half-a...

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Amiga Floppy

Finals week at pitt.edu

Welp, this is finals week, so don’t expect anything new to show up until after April 28th, 2005. But, this doesn’t mean I’ve forgotten about this project! I am very much interested in moving this...

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Amiga Floppy

Timing problems still?

I think I’m still having timing related issues. I have RTCC overflowing every 1.8us which I *know* is less than the 2us bit cell(or less than half the bit cell, if you take it to be 4us), but this seems to be what...

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