一种基于CPLD+DSP的信号采集与处理系统设计

摘要

A signal acquisition and processing system is designed according to a set of test platform used by driving system of excavator training simulator.The design schemes of hardware and software of the system are described.The CPLD is used to control A/D and SRAM,and achieve high-speed data acquisition.The DSP is used for controlling the whole driving system and data access and processing.The functional tests and analysis have been carried out,including analysis on data acquisition,SPI communication test.The results show that the design of hardware and software of the system can meet the requirements.%针对一种挖掘机模拟训练器操控系统的测试平台,设计了一种信号采集与处理系统.使用复杂可编程逻辑器件CPLD来控制高速A/D转换器和存储器SRAM,实现高速数据采集；利用DSP来进行整个操控系统的控制以及数据访问和处理.阐述了系统的硬件及软件设计方案,对信号采集及SPI通信等进行了功能性测试,并加以分析.实验结果表明,该系统软硬件设计合理,满足使用要求.