摘要
USB作为一种新型的接口技术,以其简单易用、速度快等特点而备受关注.但由于USB接口协议复杂,且涉及到W INDOW S操作系统的响应问题,使得USB设备的开发较困难.该文介绍基于DSP的USB接口硬件设计、软件编程及应用,详细论述了USB的固件编程及应注意的问题,并给出USB接口在M ass Storage中的应用.经实际验证,PC机能够顺利的识别USB设备并通过USB接口与其进行数据的读写交换.随着DSP在数字信号处理上的广泛应用,USB接口将在DSP开发系统中具有广泛的应用价值.
As a new technology of interface, USB is very popular for its convenience in use and rapidness in transferring data. But the development of USB is very difficult, because of the complicated interface protocol and the response to the windows operating system. In this article, the design of hardware, the software programming and application of USB interface are demonstrated. The firmware programming and relavant problems are discussed in detail. The application of USB interface in Mass Storage is given. PC can recognize devices easily and perform data reading and writing through USB interface. With the application of the DSP in the field of digital signal processing, USB interface will have a comprehensive application in the DSP development system.
出处
《应用科技》
CAS
2006年第6期60-63,共4页
Applied Science and Technology
