using the USBD12 chip, combining 89S52 achieve USBV1.1 communication. The program is running in 51 on the procedure. Using KEIL compiler. And with the use of TinyRTX

Packet : 3970965usb_rtx51.rar filelist
USB_RTX51\USB.Opt
USB_RTX51\USB.plg
USB_RTX51\USB_Uv2.Bak
USB_RTX51\MainLoop.c
USB_RTX51\USB51S.LIB
USB_RTX51\Isr.c
USB_RTX51\isr.h
USB_RTX51\MAINLOOP.H
USB_RTX51\Protozlg.c
USB_RTX51\protozlg.h
USB_RTX51\USB_Opt.Bak
USB_RTX51\USB.Uv2
USB_RTX51\MainLoop.LST
USB_RTX51\MainLoop.OBJ
USB_RTX51\Isr.LST
USB_RTX51\Isr.OBJ
USB_RTX51\Protozlg.LST
USB_RTX51\USB.lnp
USB_RTX51\USB.M51
USB_RTX51\Protozlg.OBJ
USB_RTX51\USB
USB_RTX51\USB.hex
USB_RTX51

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