摘要： 介绍了符合USB规范1.1版的嵌入式USB设备驱动器的设计。该设计使用消息队列、信令和定时器中断，可以在几种不同的实时操作系统中实现。文中所用到的主要概念对于利用单任务架构实现的USB外设是通用的。

关键词: 嵌入式, USB设备, 驱动器, 设计

Abstract: This paper describes the design of an embedded USB device driver compliant with USB 1.1 specification. The design is implemented under several different real time operating systems using message queues, semaphores and a timer interrupt. However, the design is general enough that the key concepts applied to USB peripherals implemented using a single tasking architecture.

中图分类号: 

• TP334.7