摘要
介绍一种具有较高性价比和发展前景的基于ARM微处理器的嵌入式以太网的设计方案。首先介绍ARM内核的微处理器LPC2292的功能和特点,接着分析了以太网控制器芯片RTL8019的性能,给出了以ARM为基础的嵌入式系统与10Mbit/s常用以太网控制器芯片RTL8019的硬件接口电路。在软件设计上,首先介绍了μC/OS-II实时操作系统,并在此基础上给出了软件系统框架以及接收和发送数据报的执行过程,最终实现了嵌入式以太网的数据传输。
The paper mainly introduced a design of embedded Ethemet based on ARM microprocessor which has high cost performance and good prospect. The first part of the paper introduced functions and characteristics of LPC2292 with ARM kernel, then analyzed performances of Ethemet control chip and designed a hardware interface circuit based on ARM embedded system and 10Mbit/s Ethemet control chip RTL8019. On the design of the soft, the paper introduced μC/OS-Ⅱ real-time operating system and based on the former designed the profile of the soft system as well as the executive process of the receiving and sending data message, finally made the data transference of the embedded Ethernet successfully.
出处
《仪器仪表标准化与计量》
2007年第1期24-26,共3页
Instrument Standardization & Metrology
