基于DSP和单片机的双CPU数据处理系统

基于现实中很多嵌入式系统要求处理器实时处理数据或者实现复杂算法的同时还要能完成各种控制任务,提出了一种基于TMS320VC5402DSP和AT89C51单片机构建的双CPU数据处理系统的设计方案,充分发挥出DSP的数据处理能力和单片机的外围接口控制能力。文中详细介绍了该系统中DSP存储器的配置以及DSP与单片机通信接口的设计,给出了软硬件的实现方法。系统还设计了液晶显示模块和键盘模块作为人机交互接口,给出了硬件接口原理图,对软件编程的实现也做了探讨。目前该方案正实施于一个舰载智能接口箱的开发项目。

Dual-cpu Data Processing System on the Basis of DSP and Singlechip

Nowadays a lot of embedded systems require processor accomplish various tasks of controlling while real-time processing data or realizing complicated algorithm.This paper has put forward a design of dual-cpu data processing system on the basis of TMS320VC5402 DSP and AT89C51 singlechip,fully giving play to the data processing ability of DSP and peripheral interface control ability of the singlechip.The article has introduced the configuration of DSP memory and the design of communication interface between DSP and singlechip in the system in detail,and it provides the implementation method of the software and hardware.This system also expands LCD and keyboard module as the human-computer interaction interface,of which the hardware interface circuit is given in the article,and the realization of software is also mentioned.This scheme is being applied to the development item of a carrier-borne intelligence interface system at present.