Thats great news Yaqube... If you made an ADF compatible one... I would buy two...
But here is what you should consider in desgn of the PCB in my opinion:
1.) That the PCB is the size of a standard Amiga Floppy drive with mounting holes to match (you would probably need threaded barrel connectors attached to the sides of the PCB to mate up with the holes), so it can be easily mounted internally.
2.)That the SD slot pertrudes slightly out of or lines up with the floppy access slot on the amiga case for true floppy replacement and easy access.
3.) That there be a fairly long cable (6-8 inch) that gets run out the floppy access hole providing the connection from a header on the PCB to the LCD and buttons to switch ADFs and scroll through them on the SD card, and reset the unit to allow for external mounting on the outside of the case with velcro or two sided tape.
4.) Maybe a visble LED light to show SD access on the PCB or on the LCD unit...
Any of us who have your ARM unit, know that you make great stuff... I am really to seeing this from you... I would definately take two...
Unfortunately you have to convert every ADF image to custom format (raw MFM data) and then store such files on an SD card. Only one drive is supported. More over write to images created from Amiga disk format files (ADF, DMS, IPF) is not supported.
I'm thinking about making my own floppy emulator supporting directly ADF images (writable) and up to 4 floppy drives (that would require some Amiga hacking since external floppy connector supports 3 or 2 (A2000, A3000 & A4000) drives, also making external drive acting as DF0: isn't simple (maybe except A4000 where you need only to change a jumper).
