MGLS—12032A／B液晶显示模块及与单片机的软硬件接口

文章介绍了晶显示模块MGLS－12032A／B，重点介绍其特点、接口信号定义和时序，并给出其与8031单片机的硬件接口、负压产生电路和主要接口子程序。     

液晶显示模块MGLS240128在图形显示中的应用

MGLS240128是香港精电公司生产的内藏T6963C控制器液晶显示模块。文中介绍了MGLS240128的原理及功能 ,给出了该显示模块与单片机的接口方法。同时给出了用C51语言编制的图形显示应用程序。     

多种图形液晶显示驱动控制器的分析与比较

本文对几种常用的图形液晶显示驱动控制器——SED1520、HD61202U、T6963C、SED1335、HD61830进行分析，并在此基础上进行比较，给出它们的异同点及各自的适用范围。     

基于NIOS Ⅱ的液晶显示器控制研究

NIOSⅡ嵌入式处理器以其设计灵活在嵌入式领域中得到广泛应用.着重介绍嵌入式系统中的液晶显示屏模块.比较NIOSⅡ与ARM嵌入式处理器的特点,以SED1520为例,阐述一种基于NIOSⅡ的液晶显示屏的软硬件控制方法,给出硬件原理图与部分软件代码.该方案能够有效地实现LCD的显示.对于嵌入式系统其他模块的开发具有借鉴意义.     

液晶显示模块MGLS12864T在单兵短波数字通信系统中的应用

在简要地介绍了单兵短波数字通信系统的基础上 ,给出了MGLS12864T点阵液晶显示模块与第三代数字信号处理器 (DSP)TMS320C31的硬件接口电路。介绍了在DSP控制下 ,用MGLS12864T实现汉字显示的编程技巧和软件开发流程。     

基于FPGA的液晶显示接口设计

在研究了SED1520的特性及控制命令字的基础上，利用FPGA的EAB单元及LPM兆功能生成片上ROM，并用VHDL语言编制了液晶显示接口程序，同时给出了一个液晶显示接口设计的硬件原理图及软件程序。     

液晶汉字显示的原理与设计

以液晶显示模块MGLS-12032A为例,给出了一种单片机控制的液晶汉字显示系统。首先简要介绍了MGLS-12032A的结构及其显示原理,然后叙述了单片机控制的硬件接口电路,最后对ASCII码、HZK16文件的排列标准、汉字点阵字模的提取流程进行了分析和模拟,同时给出具体的模拟结果。实践证明,该设计具有一定的使用价值和工程实践指导意义。     

液晶控制器SED1520与单片机μPSD3334D的接口及显示设计

本文采用基于SED1520控制器的GXM12232-1液晶模块与μPSD3334D单片机PA口以外围设备I/O模式连接,介绍了如何在PSDsoftExpress中进行PA口的配置。给出了用C51硬件描述语言读、写控制器和实现液晶模块显示的流程图。     

一种基于ISA总线的点阵图形式液晶显示器和键盘的接口模块

阐述了点阵图形式液晶显示器（MGLS－19264、MGLS－12864）和键盘与ISA总线的接口电路，给出了以C语言编写的控制显示器的基本函数及显示汉字和显示器配合键盘输入数字的编程方法，接口电路和函数成功的地应用于变电站微机电度管理系统的开发。     

基于FPGA的液晶显示接口设计

在小规模图形液晶显示模块上使用液晶显示驱动控制器组成液晶显示驱动和控制系统是低成本、低功耗、高集成度应用的最好选择。SED1520是当前最常用的一种液晶显示驱动控制器,图形液晶显示模     

智能通信在楼宇自控系统中的应用

随着计算机技术、控制技术、通信技术及信息技术的飞速发展,人们对生活、办公环境安全性、舒适性的要求日渐增长,智能建筑应运而生。楼宇自动化控制系统是智能建筑的一个重要组成部分。通过结合具体的智能楼宇控制工程项目,在介绍系统概况的基础上,给出了系统的总体设计方案及子系统的监控方案,具有一定的实用价值。     

Advances in millimeter-wave subsystems in Japan

The authors describe the development trends and results of millimeter-wave systems in Japan in such fields as communication, radar, and measurement systems. The applications included are the W-40G waveguide transmission communication system, an automobile traffic control system using the 60-GHz band, a collision avoidance radar system for an automobile, a plasma electron density measuring system, and satellite communication. The authors describe the development of devices such as high-power FET amplifiers, traveling wave tube amplifiers (TWTAs), IMPATT amplifiers, low-noise amplifiers, and monolithic microwave integrated circuit (MMIC) devices used in constructing the millimeter-wave systems     

Progress in electrophotography in Western Europe

A review is given of the progress in electrophotographic science and technology in Western Europe during the years 1967 to early 1971. University research work is mainly directed towards two areas: 1) the electrical and physical properties of photoconductors, such as selenium, chalcogenides, oxides, and organic materials; and 2) the sensitization of these photoconductors. Industrial research teams report on the preparation of electrophotographic layers on development and on image evaluation. A bibliography including scientific papers and patents published on this subject during said period completes this review.     

Switching conduction in ion-irradiated layers in GaAs

Experiments have been performed to investigate whether switching phenomena are observable in ion-irradiated GaAs. It is found that the V/I characteristics of H2+-and N+-irradiated layers show both negative resistance and switching from a high resistance to a low resistance state. Ion irradiation may thus be a useful method of fabricating switching devices.     

Electricity in China-generation in the People's Republic

Before the establishment of the People's Republic, China was a semi-colonial, semi-feudal society plagued by foreign interventions and internal power struggles. It was against this background that the electrical industry went through its infancy. Today, the People's Republic of China is facing an acute energy shortage, posing a problem which must be quickly overcome if the country's rapid industrialisation is to continue as planned. The author presents a brief history of power generation in China from 1949 to 1983 and examines possibilities for the future     

Telecommunications' role in national development in Ghana

Ghana has recognized the need for efficient and reliable telecommunication services. The widespread availability of these services will promote the nation's economic advancement and the decentralization of the government's activities. To achieve the objective of bringing telecommunications to all the people of Ghana, private sector participation is considered essential as a source of management skills, technology, and financing that will be required for the provision of services. In order to attract such participation, Ghana is putting in place the necessary policy, institutional, and regulatory frameworks to create an enabling environment for private sector investment in the telecommunication sector     

IT安全化安全IT化--信息安全产业发展问题与思考

信息安全在IT业中的角色演变 在当今信息时代,信息技术日新月异,信息产业已经成为拉动GDP增长的第一支柱产业,并以每年20%—30％的速度迅猛发展。其发展过程也经历了从传统IT向新型IT的转变,其中一个重要的转变因素便是信息安全。 1.传统IT与信息安全的关系。传统IT涵盖了五大类:通信、网络、计算机、软件、电子材料及元器件。这五类IT行业本身的发展一度呈现结构失衡:一方面过度投资到“信息高速公     

中国带电清洗技术的突破

一、电路故障的成因 通常,由于空气的污染和设备所处的环境及管理条件不同,空气中的灰尘、油污、酸碱及其气体、盐分、潮气、炭渍、金属尘埃、各种机械杂质等污染物质,不可避免地吸附在电路表面及其它部位,加之静电累积和在电场力的作用下,污秽的累积不断加重和变得牢固,各种污秽牢牢附着在线路表面,深层及各部位。灰尘、油污、酸碱及其气体、盐分、潮气、炭渍、金属尘埃、各种