嵌入式语音通信系统中Vx Works BSP的设计实现  

Design and Implementation of VxWorks BSP in Embedded Speech Communication System

作　　者：孙敬国[1] 刘庆华[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《现代电子技术》2009年第15期122-125,130,共5页Modern Electronics Technique

基　　金：广西自然科学基金资助项目(0832007Z)

摘　　要：介绍基于实时操作系统VxWorks和微处理器MPC860构建的多通道语音实时通信系统。MPC860负责完成语音通信、语音压缩、解压缩和IP封装、解封装。基于FPGA实现的通信控制器协调语音采集和回放模块同工作在QMC(多通道时分复用)模式的SCC(串行通信控制器)串口间的通信。针对实际软硬件环境定制BSP并开发了SCC串口的QMC驱动程序。A multi- channel real- time voice communication system based on RTOS VxWorks and MPC860T is introduced in this paper. Voice communication, compression, decompression, IP encapsulation and decapsulation are accomplished by MPC860. A communication controller implemented by FPGA is used to handle the data transfer between speech acquisition and playback modules and Serial Communication Controler （SCC） working at QUICC Multi -channel Controler （QMC） mode. The BSP files are modified according to the specific software and hardware environment. The SCC QMC driver is developed.

关 键 词：多通道语音通信 MPC860T FPGA QMC VXWORKS 板级支持包 驱动程序 

分 类 号：TP311.54[自动化与计算机技术—计算机软件与理论]