上位机与下位机的USB通讯，下位机采用新华龙的F340。实现了上位机与下位机的握手，可批量传送数据。,Host computer with the USB drive the next digital communications, the next crew of the new hualong F340. Achieved with the lower PC handshake machine can transmit data volume.

基于VC++开发的USB上位机测试程序！用于数据采集或传输。-Based on VC++ development of test procedures USB PC! For data collection or transfer.

在f340开发板上实现用usb控制键盘，实验通过-Implemented by the development board in f340 usb keyboard