Peter P. wrote: > May I ask what type of PIC was able to write and read raw clocked bits > at 2MHz or 4MHz bit rate ? ???? What kind of floppies do you have? All the standard ones I'm aware of run at 250 or 500 kbps, including the ubiquitous 3.5" 1.44 MB size. There were some very early 5.25" and 3.5" drives that ran at 125 kbps. -- Dave Tweed -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist