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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...

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Histogram of one track

Here’s a histogram of one track off an amiga floppy disk.  Notice the peaks near 4us, 6us, and 8us. I’ve got this data from my logic analyzer, crunched through my little C proggie, and then graphed with...

recent status

Well, I’ve put a decent number of hours in on the project over the last couple weeks. I’ve mostly been “spinning my wheels” because I haven’t made much progress, but I think I’ve...

switching design from DRAM to ALTRAMs

So as my last couple posts alluded to, I’ve been having problems with my DRAM-based design. My controller isn’t dual-port. And I’ve been trying to wrap my head around a time-slot method for arbitration...

AFP 0.2 WIP SX code

I’ve put some work into cleaning up the SX code tonight. I’ve removed some code sections no longer needed, and added documentation where it was lacking. Code should be commented pretty good. I’ve also...