目前，嵌入式設(shè)備的開(kāi)發(fā)越來(lái)越受到重視，嵌入式產(chǎn)品的應(yīng)用越來(lái)越廣泛。在開(kāi)發(fā)過(guò)程所采用的操作系統(tǒng)中，VxWo&s是比較受歡迎的一種。而開(kāi)發(fā)設(shè)備驅(qū)動(dòng)程序是開(kāi)發(fā)嵌入式系統(tǒng)一個(gè)很困難的工作，因?yàn)?a target='_blank' class='arckwlink_none'>程序員必須十分清楚硬件設(shè)備信息，還要小心處理諸如
定時(shí)控制等復(fù)雜部分。本文描述了在實(shí)時(shí)操作系統(tǒng)VxWo~s下開(kāi)發(fā)設(shè)備驅(qū)動(dòng)程序，以及如何配置PCI總線(xiàn)設(shè)備等方面的研究。

Today，great research eforts have been paid to the embedded devices which are employed in many fields．Among the operating systems in the development，VxWo~s becomes very popular． While writing device drivers is one of the most dificult tasks to develop or
port operating systems． Programmers of device driver must know information about hardware such as specifications of devices and carefully describe complex
parts such as timing contro1． This paper presents some researches in writing device drivers and how to configure PCI devices in the real—time operating system，VxWo~s．