摘要
为了满足终端系统对处理速度、实时性和可扩展性等技术指标方面的更高需求,以高性能的32位嵌入式ARM芯片为处理器,采用嵌入式实时操作系统μC/OS-Ⅱ,设计了一种软硬件易移植、易裁减,结构优化的电子交易信息终端。根据资源需求,给出了终端系统设计的硬件结构。在硬件目标平台上移植了μC/OS-Ⅱ操作系统,构建了嵌入式软件开发平台,提出了新颖的带中间件模块设计的系统软件结构,确定了系统任务划分及优先级设定,并给出了主程序执行流程,同时阐述了系统实现的一些关键技术。通过中间件模块设计方案增强了系统软件的可移植性、可扩展性和开发效率,由此设计的终端稳定可靠。
An e-trade information terminal is designed to meet the higher requirements for processing speed,real time capability and expansibility based on the 32 bit ARM chips of high performance as processor and combining with real time operation system μC/OS-Ⅱ.According to the resource requirements,the hardware structure of terminal is proposed.How to form an embedded development platform based on μC/OS-Ⅱ.In addition,the transplantation of μC/OS-Ⅱ in ARM microprocessor is discussed.A novel middleware module architecture is put forward,which increases reuse,transplant performance and expansibility.The division of task,assignment of software priority and the execution path of main program are determined.At last,some key technologies for implementing the information terminal are expatiated.The designed terminal runs reliably.
出处
《计算机系统应用》
2011年第3期230-233,共4页
Computer Systems & Applications
基金
湖北省教育厅科技处中青年项目(Q20102202)
湖北省教育科学"十一五"规划课题(2009B422)
湖北经济学院校级科研项目(2008011)
