針對實時操作系統(tǒng)μC/OS-II 沒有自己的網(wǎng)絡(luò)協(xié)議棧，提出了基于ARM7TDMI 處理器的
μC/OS-II 操作系統(tǒng)上輕型PPP 協(xié)議的設(shè)計與實現(xiàn)，對μC/OS-II 與處理器相關(guān)的代碼部分進行了修改與編譯，實現(xiàn)了μC/OS-II 在ARM 開發(fā)板上移植，為PPP 協(xié)議的設(shè)計與實現(xiàn)提供了系統(tǒng)軟件開發(fā)平臺。通過編寫了PPP 協(xié)議main 主模塊、LCP 模塊、PAP 模塊、NCP 模塊和PPP 等模塊代碼，在μC/OS-II操作系統(tǒng)中實現(xiàn)了輕型PPP 協(xié)議。通過測試，驗證了ARM 開發(fā)板的PPP 協(xié)議的網(wǎng)絡(luò)通信功能。
關(guān)鍵詞 ARM；μC/OS-II；嵌入式系統(tǒng)；移植；PPP
Abstract:Aiming at the μC/OS-II Real-time operating system without its own network protocol stack,a light PPP protocol is presented and implemented in μC/OS-II based on AMR7TDMI processor. by modifying and compiling core codes related with AMR7TDMI processor, μC/OS-II is ported in ARM development board, which provides software platform for design and implementation of a PPP. In the end, the article introduces the course of design and implementation of a PPP under the software and hardware platform , including design of main module, LCP module, PAP module, NCP module and PPP module.Test result indicated that light PPP can be realized successfully in ARM development board.
Key words：ARM, μC/OS-II, embedded system,porting , PPP