基于TMS320VC 5509 DSP片内USB接口的数据通信  

Data communication based on USB interface of TMS320VC 5509 DSP

作　　者：冷华[1] 李欣然[1] 李志军[1] 李村晓[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《电力自动化设备》2007年第7期87-89,105,共4页Electric Power Automation Equipment

摘　　要：采用通用串行总线(USB)用于数据信号处理(DSP)数据采集系统和后台PC机之间的大容量实时数据传输。以TMS320VC 5509 DSP芯片为基础,利用DSP芯片内部的USB模块,设计了硬件接口电路和控制软件,给出了相应的接口框图和关键代码。结合Visual C++6.0和开发平台Code Composer Studio实现了USB模块的固件设计,利用Driver Studio开发了后台PC机Windows客户驱动程序。所设计的系统已成功地应用于变电站现场的数据实时采集,满足数据采集的快速性和实时性要求。USB（Universal Serial Bus） is used in real-time mass data transfer between backstage PC and DSP-based data acquisition system. Using the internal USB module of TMS320VC 5509 DSP chip,the hardware interface circuit and control software are designed and the corresponding interface diagram and key codes are provided. The firmware of USB module is programmed with Visual C ＋＋ 6.0 on Code Composer Studio and the Windows driver is developed with Driver Studio in backstage PC. The system designed is successfully used in substation for real-time data acquisition,meeting requirements of speed and real-time performance.

关 键 词：USB TMS320VC5509 驱动程序 数据通信 负荷特性 数据采集 

分 类 号：TN919[电子电信—通信与信息系统]