摘要
提出了一种在嵌入式CPU或MCU平台上扩展USB主机接口的方法,在给出了具体硬件电路设计的基础上,详细地论述了USB主机控制器软件的实现方案,特别介绍了主机软件系统功能和设备的列举方法。该方案设计简单,易于实现,适合于大部分嵌入式应用,软件可移植性强。通过对该方案的引用,可以简单地实现嵌入式系统对多种USB设备的支持,便于数据存储和人机交互。
A way of how to add a USB host controller on a plant of CPU or MCU was proposed. Based on the hardware design, a kind of software solution to USB host controller was explained in detail, and the function of host software system and the way of device enumation were introduced. The solution which can be used in most embedded system is simple, easy to be implemented and easy to be transplantted. By choosing the solution, embedded system can support many kinds of devices, and it will be easier to storage data and to communicate with embedded systems.
出处
《机电工程》
CAS
2008年第1期31-33,共3页
Journal of Mechanical & Electrical Engineering
