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Re: [Contiki-developers] How to Put TelosB sleeping/waking
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From: Bruno F. M. <bm...@es...> - 2010-10-07 18:55:26
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Hi Adam, Hi Marek, Hi List, On 2010/10/07, at 17:09, Adam Dunkels wrote: Marek's appointments give me some hints. Thanks ! > In addition to Marek's pointers to the on() and off() MAC methods, I > would just point out that in the current CVS code, as well as in > upcoming releases, the nullmac code has been split into two parts: a > nullrdc.c that implements a duty cycling layer that does not do any duty > cycling, and nullmac.c that implements a medium access control layer > (collision management, etc) that does not do any mac mechanisms. > But, Adam, sorry about my small knowledge about Contiki ! NETSTACK_RDC.off(0) put the node really in sleep mode, or just the radio ? Same question about NETSTACK_RDC.on() wakes the node, or only the radio ? These questions are important to me, because I'm working on a WSN design solution that needs to put the node sleep for a while, and wake up for another period for activities purposes, including sensing and communicate. /bruno > Bruno: I would have used either nullrdc or contikimac as the RDC layer, > and then had a process that would call NETSTACK_RDC.off(0) and > NETSTACK_RDC.on() to put the node to sleep and to wake it up, respectively. > > Use Cooja/MSPsim and the TimeLine to ensure that your code does what it > is supposed to, i.e. that the radio is actually off when you want it to > be off. > > /adam > > On 2010-10-07 17:17, Marek Bykowski wrote: >> Hello Bruno, >> >> Look at the MAC routines such as on() and off(). If I had that task I >> would try to accomplish it at the MAC layer. All the available MACs are in >> ./core/net/mac >> >> Selection of a MAC for example for Tmote Sky is in >> ./platform/sky/contiki-conf.h (or so may mix the syntax). >> >> First off as it is easiest to acquaint yourself have a look at the >> nullmac. Maybe if you don't need any MAC use nullmac. If there are more >> nodes transmitting at the same time/almost the same time use any other >> MAC as using nullmac may end up with collisions. >> >> Best luck, >> Marek >> >> >> On 7 October 2010 16:12, Bruno Filipe Marques <bm...@es... >> <mailto:bm...@es...>> wrote: >> >> Hi all, >> >> I am wondering if someone could help me on this: >> >> I need to wake a telosB node for 30 seconds for activity, then he >> must sleep for one minute to wake again for 30 seconds, and so on. >> >> Any help ? >> >> Thanks in advance, >> /bruno >> ------------------------------------------------------------ >> Bruno Filipe Marques, >> MsC in Electrical and Computer Engineering >> >> FCT PhD Schollarship (SFRH/BD/36221/2007) >> >> PhD Student @ DEEC/FEUP >> WiN, Wireless Networks >> UTM, INESC Porto, >> http://win.inescporto.pt/ >> >> Electrical Engineering Department >> School of Technology and Management >> Polytechnic Institute of Viseu, >> Portugal >> >> url: http://www.estv.ipv.pt/paginaspessoais/bmarq/ >> e-mail: bm...@es... <mailto:bm...@es...> >> >> MSN: bm...@ip... <mailto:bm...@ip...> >> Skype: bmarq2k5 >> Facebook: http://www.facebook.com/bmarq >> Twitter: http://twitter.com/bmarq2k9 >> >> >> ------------------------------------------------------------------------------ >> Beautiful is writing same markup. Internet Explorer 9 supports >> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >> Spend less time writing and rewriting code and more time creating great >> experiences on the web. Be a part of the beta today. >> http://p.sf.net/sfu/beautyoftheweb >> _______________________________________________ >> Contiki-developers mailing list >> Con...@li... >> <mailto:Con...@li...> >> https://lists.sourceforge.net/lists/listinfo/contiki-developers >> >> >> >> >> ------------------------------------------------------------------------------ >> Beautiful is writing same markup. Internet Explorer 9 supports >> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2& L3. >> Spend less time writing and rewriting code and more time creating great >> experiences on the web. Be a part of the beta today. >> http://p.sf.net/sfu/beautyoftheweb >> >> >> >> _______________________________________________ >> Contiki-developers mailing list >> Con...@li... >> https://lists.sourceforge.net/lists/listinfo/contiki-developers > > -- > Adam Dunkels <ad...@si...> | +46 70 7731614 | http://www.sics.se/~adam/ > Book: Interconnecting Smart Objects with IP - http://TheNextInternet.org > > ------------------------------------------------------------------------------ > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > _______________________________________________ > Contiki-developers mailing list > Con...@li... > https://lists.sourceforge.net/lists/listinfo/contiki-developers > ------------------------------------------------------------ Bruno Filipe Marques, MsC in Electrical and Computer Engineering FCT PhD Schollarship (SFRH/BD/36221/2007) PhD Student @ DEEC/FEUP WiN, Wireless Networks UTM, INESC Porto, http://win.inescporto.pt/ Electrical Engineering Department School of Technology and Management Polytechnic Institute of Viseu, Portugal url: http://www.estv.ipv.pt/paginaspessoais/bmarq/ e-mail: bm...@es... MSN: bm...@ip... Skype: bmarq2k5 Facebook: http://www.facebook.com/bmarq Twitter: http://twitter.com/bmarq2k9 |
