摘要
结合小卫星综合电子系统可靠性、实时性及数据共享的特点,分析双口RAM芯片的特性,提出了基于双口RAM的多CPU架构星载综合电子计算机应用设计方案;设计用双口RAM实现多CPU之间高速、可靠的并行数据通信和共享,使整个系统软硬件设计简单,数据充分共享,可靠性较高;给出基于双口RAM多CPU架构综合电子计算机的应用实例和实验分析,实验结果表明,该系统运行稳定可靠,具有很高的实时性和数据处理能力。
Combining with the characters of reliability,real-time and sharing-data of the synthesized electronic system of small satellite,Dual-Port RAM＇s characters are analyzed.A precept of using Dual-Port RAM to share data among Multi-CPU is put forward,and using Dual-Port RAM to carry out high-speed and reliable parallel communication and sharing data is designed.The whole system＇s software and hardware is easy to design with fully exploiting resource and higher reliability and real-time feature.An application and test analysis of Dual-Port RAM＇s Multi-CPU system in the synthesized electronic computer is offered,the results show that the system runs stably and reliably,which have highly real-time and data processing capacity.
出处
《计算机测量与控制》
北大核心
2014年第11期3744-3746,3750,共4页
Computer Measurement &Control
关键词
双口RAM
小卫星
综合电子系统
dual-port RAM
small satellite
synthesized electronic system
