欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PPT文档下载
    分享到微信 分享到微博 分享到QQ空间

    How to Code on TinyOS.ppt

    • 资源ID:376417       资源大小:1.46MB        全文页数:32页
    • 资源格式: PPT        下载积分:2000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要2000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    How to Code on TinyOS.ppt

    1、How to Code on TinyOS,Xufei Mao Advisor: Dr. Xiang-yang Li CS Dept. IIT,Outlines,What is TinyOS? Hardware & Software NesC A simple example Conclusion,So why do we need a new OS?,Traditional OS,Huge ! Multi-threaded architecture =large memory I/O model Kernel and user space separation Typically no en

    2、ergy constraints Ample available resources,Sensor Hardware Constraints,Lower Power Limited memory Slow CPU Size (Small) Limited hardware parallelisms Communication using radio Low-bandwidth Short range,Desired OS Properties,Small memory footprint Efficient in power and computation Communication is f

    3、undamental Real-time Support diverse application design,TinyOS Solution,Concurrency: uses event-driven architecture Modularity Application composed of components OS + Application compiles into single executable Communication Uses event/command model FIFO and non pre-emptive scheduling No kernel/appl

    4、ication boundary,The Hardware,Software,TinyOS (Platform) Coding language NesC (Network Embedded System C),TinyOS Memory Model,STATIC memory allocation! No heap (malloc) No function pointers No dynamic, run-time allocation Global variables Available on a per-frame basis Conserve memory Use pointers L

    5、ocal variables Saved on the stack Declared within a method,TinyOS & nesC Concepts,New Language: nesC. Basic unit of code = Component Component Process Commands Throws Events Has a Frame for storing local state Uses Tasks for concurrency Components provide interfaces Used by other components to commu

    6、nicate with this component,Components,Two type of components Module component written with code Configuration components wired together,Components,TinyOS Application (Sample),Commands/Events/Tasks,Commands Should be non-blocking i.e. take parameters start the processing and return to app; postpone t

    7、ime-consuming work by posting a task Can call commands on other components Events Can call commands, signal other events, post tasks but cannot be signal-ed by commands Pre-empt tasks, not vice-versa Tasks FIFO scheduling Non pre-emptable by other task, pre-emtable by events Used to perform computat

    8、ionally intensive work Can be posted by commands and/or events,nesC,Naming conventions nesC files extension: .nc Clock.nc : either an interface (or a configuration) ClockC.nc : a configuration ClockM.nc : a module,nesC Keywords,nesC Keywords -implementation,Interfaces,Modules,Implement one or more i

    9、nterfaces Can use one or more other interfaces,Modules (Sample),Configurations,Two components are linked together in nesC by wiring them Interfaces on user component are wired to the same interface on the provider component 3 wiring statements in nesC: endpoint1 = endpoint2 endpoint1 - endpoint2 end

    10、point1 endpoint1),Configurations (Sample),nesC Wiring Syntax,Compile & Run,Compiler processes nesC files converting them into a gigantic C file Has both your application & the relevant OS components you are using Then platform specific compiler compiles this C file Becomes a single executable Loader

    11、 installs the code onto the Mote (Mica2, Telos, etc.),Simple Example 1,Blink Application Blink.nc configuration,Simple Example 1,Blink Application BlinkM.nc module,Simple Example 2,Communication between two sensors Environment : Xubuntu + TinyOS 2.0 Hardware: TelosB sensors,Resources,Gauravs TinyOS-

    12、1.x installation howto: http:/www.cs.umass.edu/gmathur/misc/tinyos_setup.htm Tinyos-2.x installation howto (straightforward): http:/ The official TinyOS tutorial (pretty good): http:/ The offical TinyOS-2.x tutorial (very good): http:/ nesC: http:/ Docs: nesC paper: http:/none.cs.umass.edu/gmathur/t

    13、inyos/nesc-pldi-2003.pdf nesC manual: http:/none.cs.umass.edu/gmathur/tinyos/nesc-ref.pdf TinyOS abstractions: http:/none.cs.umass.edu/gmathur/tinyos/tinyosnsdi04.pdf,Reference,TinyOS Tutorial by Jeremy Gummeson, Sensors Lab, UMass-Amherst TinyOS Programming by Philip Levis nesC paper: http:/none.cs.umass.edu/gmathur/tinyos/nesc-pldi-2003.pdf,Conclusion,


    注意事项

    本文(How to Code on TinyOS.ppt)为本站会员(周芸)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开