基于USB2．0的生物信号采集系统设计

A data acquisition system based on USB2. 0 for measurement of bioelectricity

介绍了基于LISB2．0的生物信号采集系统设计原理与实现,提出了使用FPGA控制A／D转换器完成高速、高精度数据的采集和存储,同时给出了基于FX2实现高速数据传输的USB总线接口方案。按照该方案设计的生物信号采集系统可以实现不问断、大容量数据采集和传输。

The data acquisition system based on USB2. 0 for measurement of bioelectricity will be introduced in this paper. It puts forward a technique to realize high-speed and high-precision data acquisition by using FPGA to control A/D converter. Meanwhile, it describes how to realize high-speed data transfer base on FX2. Experiments proved that it is a good method to acquire and transfer mass data rapidly.