用VB实现USB功能，主要是通过调用EasyD12.dll动态连接库函数,控制USBU端对 DP-51学习板24WC02时行读写控制。-VB USB functions, mainly through call EasyD12.dll DLL function, USBU-right control of DP-51 learning at the plate WC02 24 firms control read and write.

主要功能为，从USB总线读取延时参数，单片机延时发送内存缓冲区的一个字节数据到USB总线，每传送一个字节数据查询USB总线是否有停止USB总线通信命令，如有停止USB总线通信命令，则重新开始检查串口握手信号，开始下一次USB总线通信。 -Main function is to read from the USB bus delay parameters, single-chip delay sending a byte of data memory buffer to the USB bus

主程序功能为51单片机从USB总线读取两个字节数据，计算两个数据的和。另外本文还给出了CH372的主端点、辅助端点之间数据上传下传的子程序，供读者参考。 -The main program functions for 51 single-chip two bytes of data to calculate the two data and read from the USB bus. In addition, the article also gives CH372 primary end

可以通过电脑实现读写ez - usb控制芯片传输的数据,传输采用USB1.0传输速度控制。-Can read and write by PC with implementation ez-usb control transmission of data, transmission adopts USB1.0 transmission speed control.