Re: [Tinyos-help] Why microsecond accuracy in FTSP with telosb?

2013-10-14 Thread Janos Sallai
Yes, that's correct. Janos On Sep 27, 2013 5:17 PM, "gio919" wrote: > > Hi Janos, thank you too for the answer. > So when I created the graphs with matlab file (FtspDataAnalyzer.m) the > results were in jiffy, but in this case jiffy means millisecond, right? > > > > -- > View this message in cont

Re: [Tinyos-help] Why microsecond accuracy in FTSP with telosb?

2013-09-30 Thread gio919
Ok guys, I'm just trying to implement a microsecond-precision synchronization in the FTSP protocol with Telosb. So far I changed "TimeSyncC" strings with "TimeSync32kC". Is it enough? Let me know it, thanks to all. Giovanni -- View this message in context: http://tinyos-help.10906.n7.nabble.com

Re: [Tinyos-help] Why microsecond accuracy in FTSP with telosb?

2013-09-29 Thread gio919
wasif masood wrote > with default setting, i.e. using TimeSyncC component in the TestFtspAppC, > it is in Millisec, but you can easily replace the TimeSyncC component > with TimeSync32kC (just need to rewire the interface in TestFtspAppC) and > you will get 32Khz jiffies! Ok thank you too, if I wi

Re: [Tinyos-help] Why microsecond accuracy in FTSP with telosb?

2013-09-29 Thread wasif masood
with default setting, i.e. using TimeSyncC component in the TestFtspAppC, it is in Millisec, but you can easily replace the TimeSyncC component with TimeSync32kC (just need to rewire the interface in TestFtspAppC) and you will get 32Khz jiffies! On Sat, Sep 28, 2013 at 12:17 AM, gio919 wrote: >

Re: [Tinyos-help] Why microsecond accuracy in FTSP with telosb?

2013-09-27 Thread gio919
Hi Janos, thank you too for the answer. So when I created the graphs with matlab file (FtspDataAnalyzer.m) the results were in jiffy, but in this case jiffy means millisecond, right? -- View this message in context: http://tinyos-help.10906.n7.nabble.com/Why-microsecond-accuracy-in-FTSP-with-te

Re: [Tinyos-help] Why microsecond accuracy in FTSP with telosb?

2013-09-27 Thread Janos Sallai
The FTSP paper refers to a TinyOS 1.x-based implementation, and that one does microsecond-precision timestamping on micaz. In TinyOS 2.x, the HIL only requires millisecond-precision timing, and that's what FTSP relies on. In that case, 1 jiffy is about 1 millisecond (1/1024 second, to be specific)

Re: [Tinyos-help] Why microsecond accuracy in FTSP with telosb?

2013-09-27 Thread gio919
Yes FTSP paper on Mica2, but in readme of TestFTSP I found this: --- SUPPORTED PLATFORMS: The supported platforms are micaz, mulle, telosb, z1 and iris. So i just tryed it with

Re: [Tinyos-help] Why microsecond accuracy in FTSP with telosb?

2013-09-27 Thread Thomas Schmid
Hi, Fairly simple, the FTSP paper was based on the Mica2 (or was it the MicaZ?) which has a higher frequency crystal. You can do a similar thing with the TelosB, but you will have to change some of the code. Search the mailing list. There were long threads discussing how to do that. Cheers, - Th

[Tinyos-help] Why microsecond accuracy in FTSP with telosb?

2013-09-27 Thread gio919
Hi guys, I'm a newbie in tinyos. I read the FTSP paper and i tested FTSP following the readme to verify the accuracy. I tested the algorithm on 10 motes and on the other two motes I used BaseStation and RadiocountToLeds just like described in the readme and then I followed the readme.matlab. The l