基于USB3200的便携式高速数据采集仪

Designs of a Portable High-speed Data Acquisition System Based on I2S Bus

便携式是数字化仪器的发展方向之一。介绍一种基于USB3200的便携式高速数据采集仪的设计实例,数据采集仪配置AD7862芯片,可以满足多种生产现场信号的高速数据采集工作。可编程逻辑CPLD的采用,使得系统具有较强的可扩展性。详细地介绍了系统的硬件设计和软件设计,并在仿真的基础上通过对方波信号的试验分析,验证了系统设计的可行性和正确性。

Portable is one of digital instrumentation development tendencies.This paper addresses an example of high-speed data acquisition system which based on USB and I^2S bus.The using of chip AD7862 can satisfy many high-speed data acquisition of industrial fields and the application of CPLD （complex programmable logic device） makes the system adjustable.Hardware and software designs are amply introduced in the paper and through the test analysis using square wave,the feasibility and validity of this design are affirmed.