Hi Michael and Eric, thank you for replying. It's the sending side that failed and I do not know how to debug a buffer failure.. After extensive testing, it does seem like some kind of buffer problem as it always give me a few successful packet then die if I am on the 40~50Hz but no packet is sent after that.
Any idea? Thanks On Fri, Jul 22, 2011 at 5:47 PM, Michael Schippling <sc...@santafe.edu>wrote: > If you can't debug it with an LED or two...haha... > Actually I have sometimes used a scope and once > or twice have been forced to use a logic analyzer. > > You should be able to flash the LED exactly as fast as > you can execute a while-loop with a toggle in it. > > There may be a buffer failure. Are you freeing each > message buffer as soon as you are done? Is it the sending > or receiving side that dies, and how do we know? > > My speed tests using T1 and mica's of various flavors > were able to run fairly fast for-mostly-ever, although > 33/second is about the mica2 limit. > > What platform are you using? > > MS > > Eric Decker wrote: > >> >> >> On Fri, Jul 22, 2011 at 2:19 PM, Lee Carol <casab...@gmail.com <mailto: >> casab...@gmail.com>> wrote: >> >> Hi, I am writing a program that, every time a packet is sent from >> mote, LED light toggles. >> When I increase the packet sending rate to 33Hz, my mote only works >> for few seconds then stop. >> I've examined my code and everything seems to work fine. >> Wondering if LED is causing the problem and want to know how fast >> the LED can be toggled. >> >> >> probably not. Not much can go wrong with the LED. >> >> I would recommend that you get a jtag pod and dig into what is actually >> going on. trying to debug embedded systems using printfs and led while >> doable isnt the most efficient of programmer time. my not so humble >> opinion. (I've been doing embedded stuff since the 70's). >> >> >> Anyone knows? >> Thanks for viewing >> >> Carol >> >> ______________________________**_________________ >> Tinyos-help mailing list >> Tinyos-help@millennium.**berkeley.edu<Tinyos-help@millennium.berkeley.edu> >> >> <mailto:Tinyos-help@**millennium.berkeley.edu<Tinyos-help@millennium.berkeley.edu> >> > >> >> https://www.millennium.**berkeley.edu/cgi-bin/mailman/** >> listinfo/tinyos-help<https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help> >> >> >> >> >> -- >> Eric B. Decker >> Senior (over 50 :-) Researcher >> >> >> >> ------------------------------**------------------------------** >> ------------ >> >> >> ______________________________**_________________ >> Tinyos-help mailing list >> Tinyos-help@millennium.**berkeley.edu<Tinyos-help@millennium.berkeley.edu> >> https://www.millennium.**berkeley.edu/cgi-bin/mailman/** >> listinfo/tinyos-help<https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help> >> >
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