基于令牌仲裁的双口RAM高速数据传输技术  

The Technology of High-Speed Data Transmission Based on Dual-Port RAM in Token Arbitration Method

作　　者：鲁盈悦 江驹[1] 王新华[1] 韩胜男[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016

出　　处：《航空兵器》2014年第1期53-56,60,共5页Aero Weaponry

基　　金：航空科学基金资助项目(2012ZG52078);南京航空航天大学研究生创新基地(实验室)开放基金资助项目(kfjj120203);南京航空航天大学研究生创新实验竞赛资助项目

摘　　要：针对双CPU遥控模型直升机机载飞控系统中微处理器间高速可靠数据传输这一关键性问题,设计了双口RAM数据共享的软硬件,在基于旗语逻辑的令牌仲裁方式下,实现了DSP和单片机的双向数据通信。测试结果表明,本文所设计的双口RAM软硬件可满足机载飞控系统双CPU间高速可靠数据通信的要求,数据传输效率高,为后续机载飞控系统的开发奠定了基础,并对其他多CPU系统数据传输有很好的借鉴意义。For the key problem of high-speed reliable data transmission between microprocessors in the airborne flight control system of double CPU remote model helicopter , this paper devises both the soft-ware and the hardware of dual-port RAM data sharing system, and realizes the two-way data communica-tion between DSP and single chip processor .Test results show that the dual-port RAM system can satisfy the need of high-speed reliable data communication in the airborne flight control system with high data transfer efficiency.It has laid the foundation for the development of follow-up airborne flight control sys-tem, and is a good reference to data transmission in other multi CPU system .

关 键 词：遥控模型直升机 机载飞控系统 数据传输 令牌仲裁 

分 类 号：TN79[电子电信—电路与系统]