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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

added version control and another command

I’ve really wanted version control for a long time.  The ability to go back and undo diverse changes across sessions is valuable.  I also feel a little safer and don’t mind doing semi-destructive edits...

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Amiga Floppy

MFMSanityCheck

While I’m hesitant to post this at all, this is a quick and dirty application I threw together, and I do mean threw, that will check for valid MFM bytes. See the previous post for the link to the actual bytes. It...

33 views
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!
 

32 views
Amiga Floppy

added commands

So I’ve added commands to support forward/backward stepping and upper and lower sides. R for Read D for Dump F/B for stepping either Forward or Backward U/L for selecting upper or lower side. I’ve tested...

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Amiga Floppy

still giving me trouble

I spent some time on the project last night.  Still no-go. The SX and the software is behaving as expected by responding to commands, transferring the buffer, so and so forth.  I’m getting garbage data from the...

32 views
Amiga Floppy

PC xfer working now, timing in order

Welp I pretty much solved the big problems I encountered over the past couple weeks. Ground issues — turned out I was attaching ground of one interface to Vdd on another interface. That was solved by actually...

31 views
Amiga Floppy

new book

I recently received “On the Edge: the Spectacular Rise and Fall of Commodore” and have read about half of the book so far.  Very interesting read.  It’s fun to read about how the various Commodores...

31 views
Amiga Floppy

reading problems

I hate leaving projects for awhile.  Any more than a few days, and you lose the focus, you lose the insight, and remembering exactly where you left off can be a pain in the butt. This time, I’ve come back to a...

31 views
Amiga Floppy

java software

I’ve been working on the Java software the last couple days. Trying to read from RXTX is producing only 3968 bytes per read.  It looks like my USB -> serial converter uses a “transfer size” of 4096...

31 views