本文介绍了一种在Arm 9 处理器和Linux 操作系统的嵌入式组合中实现数据终端设备与无线通信模块之间的串行通信链路复用功能的新的方法。这种方法利用Linux 伪终端功能，在数据终端设备和无线通信模块之间实现一个串行通信链路复用层，与一般的实现数据终端设备与无线通信模块之间串行通信链路复用协议TS27.010 的方法相比，更简单、灵活，并具有通用的特点。本方法已成功应用于彩信和短信功能的整合中。关键词：串行通信链路复用；伪终端；嵌入式系统Abstract： A new approach to Terminal Equipment to Mobile Station (TE-MS) multiplexerin the embedded system of CPU based on Arm 9 in combination with Linux OS is proposedin this article. By utilizing Linux pseudo terminal in the approach, a serial multiplexer layer can be implemented between terminal equipment and mobile station. Comparing to the normal method of implementing Terminal Equipment to Mobile Station (TE-MS) multiplexer protocol of TS 27.010, it is simpler and more flexible, and still universal. And it has been successfully used to integrate SMS and MMS.Keywords：TE-MS Multiplexer；Pseudo Terminal； Embedded System
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