with fluxengine support out of the way, we’re on to refactoring our adafruit_floppy library code to support this old-fangled 360K double-density disk http://fileformats.archiveteam.org/wiki/PC-DOS_360K_format this format was pretty common back in ze day. it’s not too different from our more common 3.5″ 1.44MB in that it has MFM encoding, two sides and FAT12 formatted. but it does have a quarter of the capacity as it has half the tracks (40 not 80) and half the sectors (9 not 18). so, a little refactoring this afternoon and now our USB mass storage example is happy to make this drive appear as a 360KB USB drive. we can access the files just fine – this may be the first time someone’s developed a USB MSD controller for these older disks, it’s like a really really heavy usb key 🙂 – video.
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