Hello Mr. Bert Sesam,

The is one killer Floppy Drive Evaluation Board Schematic at the following web address.
http://www.smsc.com/main/tools/usb/evb97cfdc.pdf.

You might contact the manufacture of the SMSC 97CFDC integrated circuit Standard Microsystems Corporations, 300 Kennedy Drive, Hauppauge, NY 11788 to see if they have any firmware they would be willing to share. Their web address is www.smsc.com which would be another way of reaching them.

Good luck,

Charles Bannister