On 9/8/23 12:58, Anders Nelson via cctalk wrote: > Hi all, > > I just bought a very clean, DSDD 8" disk drive off eBay and it has a 50p > connector which I guess is the common Shugart type? I also found a 50p-> > 34p adaptor PCB design someone documented online. > > I haven't delved much into floppy formats (high level or low level) but I'm > somewhat familiar with filesystems from FAT12. My ultimate goal is to > create an open-source USB adaptor that reads/writes the contents of an 8" > disk but presents itself to an OS as a Mass Storage Device (block device). > Is such a thing possible? > > I once created a terrible custom format for storing data on a flash chip > which required no low-level format, but I expect a magnetic disk needs > headers/trailers to know when a track starts/stops so it can skip around. > > I checked out the KyroFlux website and it seems there are dozens of formats > that were used for 8" disks - is there a favorite format among the > community that allows full use of a 1.2MB 8" disk? > > Any pointers are appreciated!
Hard-sector or soft-sector? Easiest thing for most cases is to hook it to a legacy floppy on a PC. Call the disk a 1.2MB 5.25" and you'll be fine. --Chuck
