本文在介紹專用ATM 網(wǎng)網(wǎng)關(guān)基本功能和工作原理的基礎上，著重從硬件設計和軟件實現(xiàn)介紹了嵌入式網(wǎng)關(guān)的實現(xiàn)。本網(wǎng)關(guān)采用ARM 微處理器和FPGA 數(shù)據(jù)處理單元相結(jié)合的方法，實現(xiàn)協(xié)議轉(zhuǎn)換、OSPF 協(xié)議包處理等相關(guān)網(wǎng)關(guān)功能。
關(guān)鍵字：嵌入式系統(tǒng) 網(wǎng)關(guān) OSPF 協(xié)議

Embedded gateway based ARM and FPGA Zhang ying Lin xiaokang （The Department of Electronic Engineering ,Tsinghua University, Beijing, China 100084） Abstract： This article describes basic functions and working principle of the gateway in application-specific digital network, then gives the way to realize the gateway in hardware and software design. This gateway uses ARM mpu and FPGA to realize the functions such as protocol translation、processing of OSPF packets,etc.
Keywords： embedded system gateway OSPF protocol