基于FPGA的高速数据采集系统设计

Design and Development of the High-speed Data Acquisition System Based on FPGA

为了实现高速、连续采样的数据采集系统,介绍了一种基于FPGA的高速数据采集系统的构成及技术实现。采用FPGA作为主控制器,USB2.0协议标准传输数据,设计了数据采集系统的硬件电路,包括模拟信号滤波整形电路,高速AD接口电路,USB接口电路等,实现了对数据的高速连续采集。设计了系统应用软件,包括数据采集板的FPGA程序和USB固件程序,上位机应用软件等。实验测试结果表明,系统结构灵活,性价比高,抗干扰能力强,各项指标均已达到了设计时的要求,具有广泛的实用性。

The construction and techno - realization of high - speed data acquisition system are presented. The FPGA is adopted to re- alize the design of the hardware, which includes analog signals filtering plastic circuit, high - speed AD interface circuit, USB interface circuit. The system application software design is also analyzed in detailed, which includes FPGA program design, USB firmware pro- gram, upper computer application software, etc. The experimental results show the feasibility of the designed method.