本文通過(guò)設(shè)計(jì)實(shí)例介紹了一種嵌入式網(wǎng)絡(luò)打印的實(shí)現(xiàn)方案。該方案選用ATmega128 為MPU、LAN91C111 為網(wǎng)絡(luò)控制器，以通用的SPP 打印并口作為物理輸出端 口，硬件構(gòu)成上具有典型意義。軟件上精簡(jiǎn)了TCP/IP 協(xié)議棧，完成了網(wǎng)絡(luò)接口程序的設(shè)計(jì)，
構(gòu)建了嵌入式WEB 服務(wù)器。在分析網(wǎng)絡(luò)打印模型的基礎(chǔ)上，實(shí)現(xiàn)了IPP 網(wǎng)絡(luò)打印協(xié)議的基 本功能。
關(guān)鍵詞：嵌入式系統(tǒng)；打?。籌PP；LAN91C111
Abstract： A scheme of internet printing in embedded systems is presented in this paper.
Details of typical hardware mainly based on ATmega128, LAN91C111 & SPP are introduced. As for the software, the stack of TCP/IP is reduced, and meanwhile the process of network interface is given. On the basis of achieving embedded WEB server and analyzing the model of internet printing, primary function of IPP is implemented. This design of systems embedded with IPP is possessed of practical value.
Key words：Embedded System; Print; IPP; LAN91C111