provided accordance usb interface chip programming. Io from input to the subsequent differential signal output. Gave a detailed example

firmware12.6
............\2.0d单buff
............\..........\BULKLOOP.C
............\BULKLOOP.C
............\BULKLOOP.C.bak
............\BULKLOOP.LST
............\BULKLOOP.OBJ
............\bulkloop2.hex
............\bulkloop2.iic
............\bulkloop2.M51
............\bulkloop2.Opt
............\bulkloop2.plg
............\bulkloop2.Uv2
............\bulkloop2_Opt.Bak
............\bulkloop2_Uv2.Bak
............\dscr.a51
............\dscr.LST
............\dscr.OBJ
............\Ezusb.lib
............\fw.c
............\fw.ls1
............\fw.LST
............\fw.OBJ
............\fw.SRC
............\fw.__i
............\Fx2.h
............\fx2regs.h
............\fx2sdly.h
............\STARTUP.A51
............\STARTUP.lst
............\STARTUP.OBJ
............\USBJmpTb.OBJ

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