Author Archives: admin

So looking at a lot of raw data is pretty tough, but matlab handles it with ease. So the above image shows a sample amiga track from a brand new disk, just recently formatted, within the amiga.  It is basically … Continue reading →

I’ve been more active on the project than the posts have illustrated. I’ve been working on a few different things : Been trying different PLL solutions, examining how Paula does it, and actually analyzing my read data with Matlab to … Continue reading →

I should have mentioned this before, but the Amiga Forever CDs and DVDs are really pretty awesome. The original commodora-era videos, pre-installed games/environment, everything is done very nicely. I have the 2008 Premium edition and have meant to post about … Continue reading →

This isn’t by any stretch finished, but it does do what I’ve expected it to do. It responds both to differences in phase (counter is set to 0), and differences in frequency (period is adjusted in the direction of the … Continue reading →

So, as I mentioned in another post, I added Jim Thompson’s phase-jerked-loop to the project.  Phil had good luck using it with his DiscFerret, but it really didn’t help me.  My problem disks are still problem disks.  And the data … Continue reading →

I collected roughly 1,000 index pulses from the Sony MPF920-E with one common floppy inserted. The motor speed variation was very very small.  I am impressed as to the accuracy. Across 967 index pulses, all were within 56 microseconds of … Continue reading →

(this was posted to Classic Computer mailing list, please disregard if you’re on the list.  I think this is an important topic) The last two nights I’ve been busy archiving some of my Amiga floppy collection.  Most disks were written … Continue reading →

New demo video for the FPGA version of the AFP! Enjoy! (45mb download warning) FPGA implementation of AFP demo

Here are some new photos for the FPGA version of the AFP. Click for full size. Enjoy!

So tonight, I put my new FPGA implementation of the amiga floppy project to good use.  I read some more of my collection of amiga floppies. GREAT NEWS. It’s working like a champ.  As a matter of fact, I selected … Continue reading →