基于NiosⅡ的WTB网络节点机的设计与配置  

Design and Configuration of WTB Network Adapter Based on NiosⅡ

作　　者：王建芳[1] 夏清国[1] 

机构地区：[1]西北工业大学计算机学院,陕西西安710072

出　　处：《计算机测量与控制》2007年第11期1635-1637,1640,共4页Computer Measurement &Control

摘　　要：绞线式列车总线(WTB)是TCN制订的用于列车级车载数据通信的总线标准;根据WTB标准和实际的功能需求设计出系统框架方案,该方案采用FPGA作为核心器件,将Altera的NisoII软核处理器与WTB控制逻辑集成在单片FPGA内,并利用CPLD配置控制器从Flash存储器中读取配置文件对基于Nios II的嵌入式可编程逻辑器件FPGA进行系统配置和配置文件升级的新方案;大幅度地减小了产品的体积和重量,降低了硬件开发成本。Wire Train Bus is a specification for train-level communication proposed by IEC. As the soft-core of the system, The NiosⅡ soft-core processor and the WTB; control logic are integrated on the single FPGA. A new design approach reading the configuration files using CPLD configuration controller from Flash memory is presented to configurate and update system, Nios Ⅱ is the soft-core processor of ;he embedded system and is embedded in FPGA. It greatly arises the system speed and reduces the hardware cost.

关 键 词：绞线式列车总线 NIOS Ⅱ 介质附件单元 可编程逻辑阵列 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]