利用AD574A设计基于FPGA的高速数据采集系统

Design of High-speed Data Acquisition System Based on FPGA Usinge AD574A

在分析FPGA数据采集控制系统结构与工作原理的基础上,利用AD574A作为控制器,构建了一种基于FPGA的数据采集系统。该系统的核心电路,包含控制器、内嵌双口RAM、地址计数器3个模块,结合模数转换器件AD574A构成高精度、快速采集、存储控制系统。可以通过单片机或DSP进行数据的后续处理。并在Quartus II平台下实现FPGA内部3个功能模块,给出了时序仿真波形图。

This paper introduces the control system realization with high-precision rapid data collection and storage,in which a FPGA is the core and supplemented by the necessary AD574A ADC.Besides,digital signals can then be processed by the single-chip microcomputer or DSP.The paper focuses on the realization of three functional modules consisited in the FPGA based on Quartus II and gives the timing simulation waveforms.