摘要
首先搭建了基于ARM内核的嵌入式处理器S3C44BOX的硬件平台。围绕着该处理器的硬件电路设计包括两部分,主体电路设计和外围支持电路设计。其中,主体电路包括了系统内存单元,调试接口等。其次是该硬件平台上实时操作系统网络环境的建立。这包含两部分任务,一是ARM上实时操作系统的实现,这里详细阐述了实时操作系统UCOS-Ⅱ在ARM处理器上的实现过程。二是根据UCOS-Ⅱ支持多任务、多用户的特性,为其增加了嵌入式TCP/IP协议栈LWIP,详细讨论了实现方法。
A hardware system based on embedded CPU ARM is built in this paper, the system hardware sircuit includeing two proportions - main circuit and peripheral support circuit, is designded. The main circuit includes system memory cell, debugger interface and so on. Second, a network environment based on real - time operation system is built, it contains two proportions, one is to apply RTOS in ARM CPU,the process of posting RTOS UCOS - Ⅱ to ARM is enpatiated, the other is to adding an embedded TCP/IP protocol stack to UCOS - Ⅱ for its multi - task/user support, the detailed realization method is given.
出处
《微处理机》
2009年第1期155-160,共6页
Microprocessors
