89S52 realize use as the core of the IDE-USB adapter now realize the main function: You can read the files and copy files. Reformat your hard disk does not support the function. More slowly, however, I copy files from the local hard disk to a mobile hard drive into a speed only 50KBytes/S, because of slow single-chip, memory less, USB1.1 speed is not fast. In addition, the code written is not good enough compression packages have circuit diagram

USB-D12

.......\MASS_STORAGE.H
.......\PDIUSBD12.h
.......\USB
.......\Usb.c
.......\USB.H
.......\USB.hex
.......\USB.lnp
.......\USB.LST
.......\USB.M51
.......\USB.OBJ
.......\USB.Opt
.......\USB.plg
.......\USB.Uv2
.......\USB_Opt.Bak
.......\USB_Uv2.Bak

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