serial ports

Its limitations are obvious, for example, the serial ports are less, the processing speed is limited, the memory capacity is limited.

其局限性也是显而易见的，如串行口少、处理速度有限、存储容量有限。

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This will not only work with serial ports, but with any set of file descriptors.

而且这部分内容不仅适用于串口编程, 而且适用于任意的一组文件描述符.

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Common examples are switches and LEDs, serial ports, and network controllers.

一般的实例是开关、LED 、 串口和网络控制器.

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This paper presents a data acquisition system consisting of SCM, RS 232 serial ports anda computer.

介绍一种以单片机作为下位机采集数据, 并经RS232串口传输到上位机——计算机的数据采集系统的实现方法.

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The namespace includes enumerations that simplify the control of serial ports.

该命名空间包含可以简化对串行端口的控制的枚举.

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These strings are the names of the available serial ports on the computer.

这些字符串是计算机上可用串行端口的名称.

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All virtual serial ports will be able also to send data to real serial port.

所有虚拟的串口将可以发送数据到一个真实的串行端口.

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The following advantages are obtained f Busses limited in a single board, two stage adiministration by serial ports, digital system with no relation to analog system in electricity, simple construction and high speed.

系统通过串行口实行两级管理，做到了数字系统与模拟系统完全没有电的联系，总线不出板，结构简单，运算速度快。

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Generally, cameras use USB or serial ports to download images.

通常, 相机使用通用串行总线(USB) 或者串行端口来下载图像.

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Standard features such as2 serial ports, one parallel port, a diskette drive and a CD ROM drive are provided.

标准功能，如第2，串行接口，一个并行接口，软盘驱动器和CD ROM驱动器提供。

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This system is controlled by MCU, connected to computer with USB port, providing serial ports and parallel ports.

本测试系统由单片机进行控制，对外提供了串行接口和并行接口，通过USB接口与计算机连接。

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The programming on serial ports, socket , and interprocess communication in Linux is also presented.

同时详细阐述了Linux下的串口编程, 网络编程和进程间通信的实现方法.

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Implementation of Shunting Trip Plan Worksheets Printing System by using function of digital serial ports of terminal server

利用终端服务器数据串口功能实现钩打系统

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A null modem cable connected between the serial ports of the two systems is used to transmit heartbeats between the two nodes.

两个系统的串口之间的直连线缆用来在两个节点间传输heartbeat。

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The system adopts single main-station to control the serial ports under free port mode.

系统采用单主站方式，在自由口模式下控制串口。

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Using ActiveX to manage the communication of computer serial ports Research on Implementation of Communication Control CPU of Airborne Fire Control System

利用ActiveX控件实现对计算机串口的通信管理机载火控系统通信管理计算机研究

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