使用DVCC实验系统中的并行接口芯片8255A的B口作输入口,使工作于方式1,将PB0~PB7连接到手动开关K1~K8,将手动脉冲信号SP作为8255B口的选通信号,连接到PC2。将B品工作于方式1时的中断请求信号(PC0)连接到8255A的IR3,8255A的片选信号无需连接(系统已连接好)。8259A的CS连接地址译码输出端Y6,8259A的端口地址为60H、61H
上传时间: 2013-12-28
上传用户:xinyuzhiqiwuwu
for total beginner to learn Eclipse and Java ,step by step teach you how to develop java pragams under eclipse IDE
标签: step beginner Eclipse develop
上传时间: 2013-12-17
上传用户:yoleeson
B树
标签: 树
上传时间: 2013-12-17
上传用户:a6697238
《JavaServer Faces》 In JavaServer Faces, developers learn how to use the new JavaServer Faces framework to build real-world web applications. The book contains everything you ll need: how to construct the HTML on the front end how to create the user interface components that connect the front end to your business objects how to write a back-end that s JSF-friendly and how to create the deployment descriptors that tie everything together. This book is a complete guide to the crucial new JSF technology.
标签: JavaServer Faces developers framew
上传时间: 2016-01-02
上传用户:redmoons
Specification for conveying ITU-R System B Teletext in DVB bitstreams
标签: Specification bitstreams conveying Teletext
上传时间: 2014-02-18
上传用户:mikesering
This zip file describes how to generate a clock on the PCK pin using the PMC running under AT91RM3400DK with Green hills 3.6.1 Multi® 2000 Software Tool. Includes main.html file for help.
标签: describes the generate running
上传时间: 2013-12-11
上传用户:hgy9473
)一个PB的应用程序, 能实现以下功能: a.新增员工资料 b.修改员工资料 c.删除员工资料 d.按姓名查找员工资料(能模糊查找, 例如输入"林", 则所有姓或名中含有"林"字的 员工全列出来.) e.系统启动时, 针对今天为该员工生日的, 则自动弹出提示进行祝福. 2) 员工资料的数据必须有: 工号(为主键), 姓名, 出生日期, 入职日期, 部门, 职务 3) 数据库类型为ASA8.0
上传时间: 2016-01-03
上传用户:BIBI
This book shows how to design and implement C++ software that is more effective: more likely to behave correctly more robust in the face of exceptions more efficient more portable makes better use of language features adapts to change more gracefully works better in a mixed-language environment is easier to use correctly is harder to use incorrectly. In short, software that s just better.
标签: more effective implement software
上传时间: 2016-01-04
上传用户:huyiming139
This book is an in-depth exploration into eVB s inherent features, and how to use them to solve likely mobile application programming tasks. After reading the book the reader will be able to write applications tackling a wide array of business problems for Windows CE-powered devices, both customized and for PocketPC and Handheld PC products. This book will help ease the transition into the language, and provide a reference for even more experienced developers.
标签: exploration in-depth features inherent
上传时间: 2013-12-12
上传用户:aa54
This program shows an example of how to interface to an SPI EEPROM using SPI0 program
标签: program interface example EEPROM
上传时间: 2016-01-05
上传用户:二驱蚊器