using tinyusb and arduino to make a USB mass storage floppy 💾 drive
woohoo, we got on-the-fly mfm decoding working so we have fluxes converted to bytes, and all the sectors are verifying right. wouldn't it be neat if we could use tinyusb's mass-storage class to make a usb floppy drive? tinyusb is an adafruit-sponsored open source usb stack that lets a microcontroller act like just about any usb device: like a keyboard or mouse or midi or disk drive. the latter is what we're most interested in - and all we have to do is tell USB MSD how many sectors we've got (18 per track, 80 tracks, 2 sides) and supply the 512 byte sectors when we get a SCSI READ10 callback…
The skinny
The skinny isn't ready yet — notes appear once the transcript is processed.