Nucleus PLUS及其在S3C44B0X上的移植

Nucleus PLUS And Transplant On S3C44B0X

讨论了Nucleus PLUS的特点;提出了使用Nucleus PLUS的开发环境和一般步骤;以NucleusPLUS在S3C44B0X上的移植为例,详细介绍了典型启动程序的编写和实现方法,包括标识程序入口点、设置异常向量、软硬件初始化、改变处理器工作模式、使能中断系统、任务调度等14个步骤;提供了主要部分的源程序并作了注释说明。

The characteristics of Nucleus PLUS was introduced.The paper gives an example of Nucleus PLUS transplant based on S3C44B0X.It presents 14 steps to compile and achieve typical start-up program,including signed points of program entrance,exceptional vector setting,initialization of software and hardware,mode changing of processor,enable interrut and task attempering.In addition,the source programme of main parts is annotated detailedly.