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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
With no aid from a microcontroller, the input signal can be generated from a soundcard or via serial ports.
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We have had pretty bad experience working with on board computers with faulty serial ports which had taken us weeks to diagnose.
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USB is becoming more common in embedded systems as a replacement solution for disappearing serial ports on the computer.
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Using a dual serial I/O pcmcia card provides two serial ports.
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Versatile, high speed logic ensures easy interfacing to serial ports on microcontrollers and digital signal processors.
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| | Using 9 sets 386 micro-computers as actual diesel engine, exciter alternator, propulsion alternator and 6 sets traction motors of DONGFENG 6 locomotive electric transmission system respectively, develop DONGFENG 6 Locomotive Micro-computer System Distributed Simulation Trial Platform. Each set solves its mathematical model by digital simulation, analogous value can be got form the AD/DA links between sets. A 386 mainframe monitor communicates with every set by serial ports, and monitoring their ... | | 以9台386微机系统分别代表东风6机车电传动系统的实际柴油机、励磁发电机、主发电机及6台电动机模块。研制出东风6机车微机系统分布式仿真测试台。各模块采用数字仿真解算数学模型.模块间用AD/DA连接,可测量各物理量的模拟量值。各模块通过串行通讯与一台386主机通讯,主机监控各模块的运行状态.记录运行曲线和数据。这种分布式的测试台结构及数字、模拟混合式的数据处理和信号传输体制能更加形象化地模拟真实的机车电传动系统.既能保证信息的高速传送.又可避免多机连接的同步问题.灵活性高.通用性强。发电机等各模块的数学模型都采用与实际相符的非线性数学模型,精度高。通过本仿真测试台可深入理解内燃机车系统动态特件.减少直接到机车上去测试的人力和物力,还可以提高控制器设计与制造的劳动生产率。 | | 文摘来源 | | An information transmission system using the resistance changing weight sensor as the measuring element is introduced in this paper. The system uses two 80C51 micro processors. By using a set of high frequency modem oh their serial ports, the wireless data tuansmission is implemented in the way of point to point communication. | | 设计出一种以电阻应变式荷重传感器作为一次测量元件的无线电子吊秤信息传输系统.该系统利用两片80C51微处理器,通过其串行口加一套高频载波调制解调器,以点对点通讯的方式,实现了测量数据的无线电传输. | | 文摘来源 | | In various industrial computer detect and control systems,the DCE composing by microcontroller often needs to extend serial Ports. The two methods of extending soft serial ports by I/O line are intaluced. The characteristic of these methods is fewer hardware, lower cost and more convenient. The paper also renders some sending and receiving communicating program in 51 language. The effect of these program is excellent. | | 在各类工业计算机测控系统中,一些以单片机为核心的前端机经常需要扩展串行口。本文介绍采用普通I/O线灵活扩展软件串行口的2种方法,这些方法有硬件省、成本低、灵活方便等特点。文中提供了经实际应用效果非常良好的实用51单片机收、发通信程序。 | | 文摘来源 | |   | | << 更多相关文摘 |
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