摘要
使用实时操作系统内核来进行多任务的管理,是目前嵌入式应用的一个趋势。面向设备的嵌入式应用由于其资源有限而受到严重的限制,单核处理器已经无法很好地满足一些实际应用。在8位AVR单片机基础上设计并实现了一个面向设备的抢占式实时多任务Webit四核处理器系统,它在总体上保留了Webit2.0内核的主要特性。Webit四核处理器系统采用4个AT90S8515单片机,通过ISA总线相连,并行地处理多任务。实验结果表明其性能大大提高。
Using real-time operating system kernel to manage multi-tasking is a trend in current embedded applications, and embedded applications for the device were severely limited because of its limited resources, so single-core processor has been unable to well meet some of the practical applications, thus this paper designed and implemented a real-time multi-tasking preemptive Webit quad-core processor system is based on 8 bit AVR singlechips, and it generally retains the main features of the Webit2. 0 kernel. Webit quad-core processor system uses four AT90S8515 singlechips which are connected through the ISA bus to process multi-tasking in parallel, and experimental results show that its performance was improved greatly.
出处
《计算机科学》
CSCD
北大核心
2009年第12期235-237,277,共4页
Computer Science
基金
高等学校科技创新工程重大项目培育资金项目(708026)资助
