針對當前工業控制、智能儀器、信息家電等領域大量嵌入式設備需要接入互聯網的現狀，提出了一種基于IP2022 單芯片的解決方案，實現了帶有RS-485 串口的嵌入式設備與以太網的連接。主要介紹了基于IP2022 芯片的硬件總體結構、系統的接口電路和軟件設計。具有體積小、功耗低、開發周期短的特點，實用價值很高。
關鍵詞：嵌入式設備；IP2022；RS-485；以太網接入
Abstract：At present many embedded equipments need to connect Internet in the field of industrial control , intelligent instrument and information appliance, etc. In allusion to the actuality, we put forward a solution based on a single chip IP2022.It realizes the connection between embedded equipment with RS485 serial interface and Ethernet. The paper mostly introduces the IP2022 chip, the hardware structure, the system’s interface circuit and
the software design. The advantages of the project are small bulk, low power waste, short development time and high practicality value.
Key words：Embedded equipment；IP2022；RS485；Ethernet connection