This document is a USB interface chip CH371 driver interface! Directly to the HEX file generated by the compiler writers can achieve the PC and the next bit machine communication!

USB
...\USB
...\USB.c
...\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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