兼容Tiny OS的TelosB节点加速器扩展方案设计  

Design of expansion scheme for accelerator in TelosB compatible with Tiny OS

作　　者：肖显峰 李翔宇[1] XIAO Xian-feng;LI Xiang-yu(Institute of Microelectronics,Tsinghua University, Beijing 100084, China)

机构地区：[1]清华大学微电子学研究所,北京100084

出　　处：《计算机工程与设计》2017年第2期355-361,共7页Computer Engineering and Design

基　　金：国家自然科学基金项目(61006021);北京市自然科学基金项目(4112029)

摘　　要：为满足对无线传感网络(wireless sensor network,WSN)节点高性能和低功耗的需求,提出一种兼容MSP430处理器指令集的硬件加速器扩展方案。使用标准的硬件接口方便挂接新的硬件加速器,实现对现有Tiny OS应用程序兼容的同时,支持通过扩展的Tiny OS组件调用新增的硬件加速器。按照上述方案基于OpenMSP430软核实现一个通过Wishbone总线连接AES(advanced encryption standard)硬件加速器的MSP430兼容处理器,开发对应的AES组件。在FPGA开发板上进行的软硬件仿真结果表明,该设计能够正确执行调用AES加速器的NesC应用程序,验证了方案的正确性。To meet the needs of high performance and low power consumption for the WSN(wireless sensor network),a hard-ware accelerator expansion scheme which was compatible with the instruction set of MSP430processor and Tiny OS(tiny opera-ting system)and its programs were proposed.This scheme was also capable of facilitating the porting of the operating system through adding extra components.Based on the above scheme and OpenMSP430soft-core,a compatible MSP430processor in-cluding a hardware accelerator namely,AES(advanced encryption standard)encryption IP core connected by Wishbone bus was designed and the AES function component was developed based on Tiny OS.The software and hardware simulation on a FPGA was run.Results show that this design succeeds in running the NesC application program with call of AES accelerator functions.The correctness of the scheme is verified

关 键 词：硬件加速器 无线传感网络节点 扩展方案 代理 节点移植 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]