基于DSP的USB语音传输接口设计  

Design of Sound Signal Communication Interface of USB Based on DSP

作　　者：毛海涛[1] 申忠如[1] 都延星[1] 文会飞[1] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《现代电子技术》2003年第19期61-64,共4页Modern Electronics Technique

摘　　要：介绍了一种基于 DSP的 USB语音传输接口的设计。通过 U SB在 DSP和 PC机之间进行串行通信 ,实现 PC机对设备的命令控制及语音数据的双向传输。本设计中使用了 USB的 3种数据传输方式 :控制传输、中断传输和等时传输 。In this paper, the design of voice communication interface of USB (Universal Serial Bus) based on DSP (Digital Signal Processor) is introduced.USB can be used to exchange data between DSP and PC, through which PC can command andcontrol USB device,can transmit and receive sound isochronous data to and fromUSB device. In this design, three kinds of USB digital transmission mode have been used: control transfer,interrupt transfer,isochronous transfer. They have different roles in the design.

关 键 词：语音传输 USB DSP 串行通信 

分 类 号：TP334.7[自动化与计算机技术—计算机系统结构]