基于DM642的以太网通信接口设计

Implementation of Ethernet Communication Interface Based on DM642

基于TI公司数字媒体DSP芯片DM642,设计并实现了以太网通信软硬件接口。采用DM642片内集成的以太网接口模块EMAC/MDIO,结合片外Intel LXT971 PHY芯片,在嵌入式操作系统DSP/BIOS架构上,运用网络开发包NDK提供的TCP/IP协议栈,实现了底层硬件驱动程序的编制及其协议栈接口,完成了视频信息的以太网传输。

The Ethernet communication software and hardware based on TI digital media DSP chip DM642 were implemented. The hardware was based on EMAC/MDIO modules integrated on DM642 and the network chip Intel LXT971 PHY. Incorperating with DSP/BIOS and the TI Network developing kit （NDK） , the communication software,including hardware drivers and the TCP/IP protocal stack were implemented to transfer the video stream via the Ethernet port.