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由于 Linux 在可靠性、开放性等方面表现的特点,在嵌入式系统领域正获得愈来愈广泛的应用。本文介绍了一种采用嵌入式 Linux 操作系统和 PC/104嵌入式控制 PC构建的通信管理装置的设计和实现过程。该装置具有以太网、CAN 现场总线等接口及8路标准异步串行接口,可以灵活应用于控制系统中的各个通信环节,实现异种网络间通信协议转换和数据管理功能。该装置运行可靠性高、组态和维护简捷、并且支持客户通信驱动程序二次开发。
Due to the characteristics of Linux in the reliability, openness and other aspects of performance, is gaining more and more widespread applications in the field of embedded systems. This article describes a design and implementation of a communications management appliance built using an embedded Linux operating system and a PC / 104 embedded control PC. The device has Ethernet, CAN field bus interface and 8 standard asynchronous serial interface, which can be flexibly applied to all communication links in the control system to realize the communication protocol conversion and data management functions among heterogeneous networks. The device is highly reliable, simple to configure and maintain, and supports secondary development of customer communications drivers.