File list (Check if you may need any files):
USB Calu\AT89X52.H
........\config.h
........\Key.c
........\Key.h
........\keyboard.h
........\LED.h
........\My_type.h
........\PDIUSBD12.h
........\UART.c
........\UART.h
........\USB.H
........\UsbKeyBoard.c
........\UsbKeyBoard.hex
........\UsbKeyBoard.lnp
........\UsbKeyBoard.M51
........\UsbKeyBoard.plg
........\UsbKeyBoard.Uv2
........\UsbKeyBoard_Uv2.Bak
........\UsbKeyBoard_Opt.Bak
........\UsbKeyBoard.LST
........\UsbKeyBoard.OBJ
........\UART.LST
........\UART.OBJ
........\Key.LST
........\Key.OBJ
........\UsbKeyBoard
........\UsbKeyBoard.Opt
USB Calu
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