The author discusses preserving retro computer floppy disks using a Saleae Logic 8 logic analyzer instead of dedicated devices like Kryoflux. They delve into the low-level details of floppy drive interfaces, including encoding schemes and signal patterns. They explain how to connect the logic analyzer to capture data from a floppy disk and control the floppy drive using a USB serial cable. The process can be automated using Python scripts. The captured data is exported in the Supercard Pro format for preservation. The author successfully tests the setup on an unimportant disk, discovering interesting details about the disk’s history. The article concludes with suggestions for improvement and a link to the Python script for reference.
https://www.chzsoft.de/site/hardware/preserving-a-floppy-disk-with-a-logic-analyzer/