基于Windows CE的嵌入式开发研究 Research of Embedded Development Based on Windows CE 【摘要】 近年来基于嵌入式系统的数字化产品在全球范围内得到了突飞猛进的发展，嵌入式技术已成为一个研究热点和消费热点。而Windows CE由于它的多任务、实时性、模块化、强大的通信能力等特点，在嵌入式系统的诸多领域都有了广泛的应用。本文首先探讨了嵌入式系统的特点，分类，前景，然后对各种嵌入式操作系统和Windows CE的特点及开发工具进行分析比较，接着介绍一个我们在Microsoft Windows CE 5.0环境下基于eBoxII开发的智能家居安防保全系统eDog。eDog 可以通过摄像头将采集到的实时视频图像进行运动检测，当发现有运动产生时，通过拨打电话等多种方式自动向用户发出警报，同时将实时捕获的图像上传到ftp 服务器。文章的最后详细阐述了eDog的图像采集模块，运动图像检测模块，图像压缩模块，FTP上传模块的实现过程，并对我们所提出的运动检测算法，视频捕捉算法等做了详细的说明。
标签： Windows Development Research Embedded
上传时间： 2014-11-27
上传用户：zm7516678
There are many different (and often confusing) terms associated with clock-based devices. This application note attempts to clarify these terms, and hence serves as a comprehensive reference on clock terminology. This application note can be divided into two sections. The first section describes and distinguishes between various clock sources available today. The second section defines and distinguishes between various parameters used to describe clocks. This section also provides methods of measuring some of these parameters.
标签： clock-based associated different confusing
上传时间： 2015-12-02
上传用户：sssl
Jitter is extremely important in systems using PLL-based clock drivers. The effects of jitter range from not having any effect on system operation to rendering the system completely non-functional. This application note provides the reader with a clear understanding of jitter in high-speed systems. It introduces the reader to various kinds of jitter in high-speed systems, their causes and their effects, and methods of reducing jitter. This application note will concentrate on jitter in PLL-based frequency synthesizers.
标签： extremely PLL-based important drivers
上传时间： 2014-11-25
上传用户：asddsd
Cypress Semiconductor makes a variety of PLL-based clock generators. This application note provides a set of recommendations to optimize usage of Cypress clock devices in a system. The application note begins with recommended termination techniques for clock generators. Subsequently, power supply filtering and bypassing is discussed. Finally, the application note provides some recommendations on board layout.
标签： Semiconductor application generators PLL-based
上传时间： 2013-12-20
上传用户：水中浮云
AN FPGA-BASED IMPLEMENTATION FOR MEDIAN FILTER MEETING THE REAL-TIME REQUIREMENTS OF AUTOMATED VISUAL INSPECTION SYSTEMS
标签： IMPLEMENTATION REQUIREMENTS FPGA-BASED AUTOMATED
上传时间： 2013-12-13
上传用户：litianchu
Fractal Explorer GUI-based program for exploring and studying the most common form of fractals, chaotic systems and fractional dimension systems
标签： GUI-based exploring Explorer fractals
上传时间： 2013-11-25
上传用户：ljmwh2000
Generates Rayleigh fading processes based on autoregressive models.
标签： autoregressive Generates processes Rayleigh
上传时间： 2015-12-06
上传用户：无聊来刷下
The development of a data acquisition card based on USB bus is introduced in this article.It first describes the configuration and principle of this card in the part of hardware design,and then the application program and device driver in the part of software design.Data acquisition program in firmware is also discussed.Finally,this data acquisition card is tested and evaluated in a program developed by Lab Windows CVI,which shows that this car is stable and reliable
标签： development acquisition introduced article
上传时间： 2015-12-07
上传用户：lijianyu172
IPCAM Design document based on TI DaVinci
标签： document DaVinci Design IPCAM
上传时间： 2013-12-26
上传用户：songrui
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.
标签： priority preemptive inversion problem
上传时间： 2015-12-14
上传用户：气温达上千万的
