VC编写的函数发生器, 能自动产生三角波，方波，正弦波等波形，并通过USB接口传送到嵌入式控制系统-VC function generator written in, can automatically generate triangle wave, square wave, sine wave, etc., and through the USB interface to transfer to the embedded control system

基于HID的API函数编写，用VB实现的界面，能够采集USB传入的两路数据，实现正弦波的数据和相位运算-Prepared based on HID' s API functions, to achieve the interface with VB, to capture two-way USB incoming data, to achieve phase sine wave data and computing