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Introduction to process models
Introduction to process models
- 2022-02-03 08:28:33下载
- 积分:1
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在一个基于RTOS优先级,优先级反转
In a preemptive priority based RTOS, priority inversion
problem is among the major sources of deadline
violations. Priority inheritance protocol is one of the
approaches to reduce priority inversion. Unfortunately,
RTOS like uC/OS can’t support priority inheritance
protocol since it does not allow kernel to have multiple
tasks at the same priority. Although it has different ways
to avoid priority inversion such as priority ceiling
protocol, developers still have some difficulties in
programming real time applications with it. In this paper,
we redesign the uC/OS kernel to provide the ability to
support round robin scheduling and implement priority
inheritance semaphore on the modified kernel. As result,
we port new kernel with priority inheritance semaphore to
evaluation board, and evaluate the execution time of each
of the kernel service as well as verify the operations of
our implementation.-In a preemptive priority based RTOS, priority inversionproble
- 2022-03-24 17:49:36下载
- 积分:1
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关于TFT相关资料,为一些想学习TFT
关于TFT相关资料,为一些想学习TFT-LCD,及液晶显示相关技术提供方便。-Relevant information on the TFT, for some want to learn TFT-LCD, and LCD-related technology with ease.
- 2022-03-07 16:59:57下载
- 积分:1
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一个自己制作的小网页大家一起分享看看啊。希望大家多多支持...
一个自己制作的小网页大家一起分享看看啊。希望大家多多支持-1 to produce their own little web page to share with everyone see ah. I hope Members can support the
- 2022-05-28 23:55:33下载
- 积分:1
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这本书是xml从入门到精通进入XML需要细节…
本书是XML从入门到精通,详细讲述了XML的教程、实例等-the book is XML proficient from the portal to go into the detail of the XML tutorial, example
- 2022-08-02 15:48:10下载
- 积分:1
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模式程序
应用背景关键技术LDAP协议定义了与编目工作如下操作:操作连接/断开连接(绑定)允许将一个客户端与一个特定的目录对象(实际或虚拟)关联起来,以实现所有其他读/写的访问控制。为了与目录工作,客户须为对象的可分辨名称(DN)认证是命名空间的目录描述。在绑定操作请求时,客户端可能没有指定基名,在这种情况下将被连接在一个特殊的别名匿名(通常它是一个拥有最小权限的客户帐户)禁用(取消)-允许客户端的会话连接到LDAP服务器切换到验证的新的可分辨名称。的绑定命令只能验证后使用BIND服务器,否则取消绑定调用返回一个错误搜索(搜索)-从目录读取数据。手术是复杂的,需要许多参数,其中主要的是:搜索库(基于),从DIT分支开始搜索数据搜索的深度(范围)-可以有值(在增加的区域的顺序):基础,一个,分直接在基于节点搜索的基础上搜索一个搜索所有的节点,都是直接后裔的基础层次,即躺在一个水平低于他子搜索整个区域,对搜索基础相对下游(基于)搜索过滤器(searchfilter)是表达定义的目录对象属于一个范围的参数指定的搜索范围的选择标准。过滤搜索的表情写在波兰(前缀)组成的一个逻辑符号(布尔)反过来运算符和操作数,操作比较,内部的LDAP属性的值(左)与表达(右侧)用等号。
- 2023-03-29 04:15:03下载
- 积分:1
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经过几个月的设计和开发,计算机图书馆管理系统基本开发完毕。其功能基本符合需求,能够完成书籍录入,借阅,查询、统计、用户管理。并提供部分系统维护功能,使管理员能够...
经过几个月的设计和开发,计算机图书馆管理系统基本开发完毕。其功能基本符合需求,能够完成书籍录入,借阅,查询、统计、用户管理。并提供部分系统维护功能,使管理员能够方便进行数据添加和修改、数据删除等功能。 但是由于毕业设计时间较短,所以该系统还有许多不尽如人意的地方,比如联机文档比较少,用户界面不够美观,出错处理不够等多方面问题。这些都有待进一步改善。
几个月的毕业设计,使我提高了实际操作能力,从以前的理论上升到实践,从感性认识上升到理性认识,真正做到学有所用,懂得先要发现问题,分析问题,解决问题,虽然在设计过程中我也遇到一些困难,但在老师的帮助和自己的努力下,我都认真克服了,但由于时间紧触,我并不能做到尽善尽美,应该说这是一大遗憾吧,我相信这对以后会有别开生会的体验。-After several months of design and development, computer library management system completed the basic development. Its functions in line with the demand for entry to complete the book, borrow, query, statistics, user management. And to provide some system maintenance functions, allowing administrators to easily add and modify data, delete data and other functions. However, due to a shorter design time graduation, so the system is not satisfactory there are still many places, such as less-line documentation, user interface s aesthetic limitations, mistakes, etc. to deal with the issue of not enough. These are to be further improved.
Months of gradua
- 2022-06-03 01:41:31下载
- 积分:1
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高校计算机学院软件工程课程所使用的课件,利于软件工程课程的学习...
高校计算机学院软件工程课程所使用的课件,利于软件工程课程的学习-College of Computer Science Software Engineering Curriculum courseware used, in favor of software engineering courses
- 2022-03-04 00:48:58下载
- 积分:1
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截屏,以bitmap格式保存到文件。
截屏区域可自主确定
截屏,以bitmap格式保存到文件。
截屏区域可自主确定-Screenshots to bitmap format to a file. Screenshots can be self-determining regions
- 2022-02-25 16:24:24下载
- 积分:1
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ADP宏指令:
ADP提供了一种既方便又功能强大的宏指令应用方式,使人机得以经由内部宏指令(Macro Function)功能执行数值运算,逻辑判断,流程控...
ADP宏指令:
ADP提供了一种既方便又功能强大的宏指令应用方式,使人机得以经由内部宏指令(Macro Function)功能执行数值运算,逻辑判断,流程控制,数值传递,数值转换,定时器计数器,自定通讯指令操作等等,由宏指令的使用可让人机不仅和PLC联机通讯,同时由另一通讯端口来执行同其它通讯设备联机,此功能不仅提供有效的系统整合同时成为最经济便宜的硬件应用架构。而且使用宏指令也可大大的减少PLC的程序容量,让PLC的控制精度及效率最佳化。-ADP macros: ADP provides a convenient and powerful way macro applications, makes machines to be through the internal macro (Macro Function) function implementation of the numerical calculation, logic to determine, process control, value transmission, numeric conversion, timing device counters, custom communication instruction operation, etc., by the use of macros makes machines not only with PLC-line communication at the same time by another communications port to perform with other communication equipment on-line, this feature not only provides an effective system integration At the same time become the most expensive hardware, application architecture economy. And the use of macros can significantly reduce the capacity of PLC programs, so that PLC control accurac
- 2022-08-15 04:03:35下载
- 积分:1