DM642的USB接口及其研究 主要用于用单片机的USB接口实时跟踪 -DM642' s USB port and its research is mainly used with MCU USB interface to real-time tracking

使用VC编程，通过usb口把外来信号传输到VC，用波形把传入的信号曝光，常用于工业生产线上-Using VC programming, through the usb port to external signals to VC, the waveform of the incoming signal exposure, commonly used in the industrial production line