Hi Guys, That's great, and it should work almost out of the box on AVR (the only platform dependent code I see is the power override consts). Does it used by any msp430 based platform for system or radio timer? Or is it just a possibility for the user?
Andris On Fri, Oct 19, 2012 at 9:13 PM, André Rodrigues <[email protected]> wrote: > Hi > > Janos was kind to send to me and to the list: > > " > > The code is in tos/chips/msp430/timer. Start from > LocalTimeHybridMicroC.nc, and follow the wirings from there. The most > important part is in Msp430HybridAlarmCounterP.nc, which shouldn't be > too hard to port to AVR. > > " > André > > > ----- Original Message ----- > From: Eric Decker > To: András Bíró > Cc: tinyos forum > Sent: Friday, October 19, 2012 8:09 PM > Subject: Re: [Tinyos-help] Latest sensor node platforms! > > That is why the hybrid timing is a good idea. > > I don't remember where the code is but someone that knew what they were > doing created a combination timinig system that uses the jiffies ticker > (32KiHz) combined with the 1us ticker to get reasonable long and short term > timing. > > Be careful, because sometimes the ticking is done in binary and sometimes in > decimal. Depends on the main cpu freq. > > I don't remember where the code is and am not going to go look right now. > > look on the tinyos-devel and tinyos-help mailing lists, look for Tmicro. > See mail-archive.com > > > On Fri, Oct 19, 2012 at 4:06 AM, András Bíró <[email protected]> wrote: >> >> Hi wasif, >> >> Unfortunatly that's almost impossible. Every mote's timer I've seen so >> far created it's timer on a 32768 Hz crystal. You can get us accuracy >> using the main clock (usually 4-8-16MHz), but the main clock is >> usually much more innacurate (especially if it's an RC oscillator), >> but it's usually enough for short measurements. >> >> Andris >> >> On Fri, Oct 19, 2012 at 12:00 PM, wasif masood <[email protected]> wrote: >> > >> > Sorry, I guess I was not discrete enough in my first email. I meant if >> > there >> > is something better than MSP430, more precisely a clock frequency that >> > can >> > give a timer of 1 usec granularity. >> > >> > >> > On Fri, Oct 19, 2012 at 11:44 AM, Antonio Liñán C. <[email protected]> >> > wrote: >> >> >> >> On Fri, 2012-10-19 at 11:32 +0200, wasif masood wrote: >> >> > >> >> > >> >> > thanks Antonio, but Z1 has the same resource constrainsts as that of >> >> > Telosb platform which I want to avoid for sure. >> >> >> >> Only the ram constrain, I know, but I had to include it along with the >> >> other 2 motes I have recommended to feel good about it ;-), however I'm >> >> curious about why you prefer working with non msp430-based platforms. >> >> >> >> --Antonio >> >> >> >> > On Fri, Oct 19, 2012 at 9:30 AM, Antonio Liñán C. >> >> > <[email protected]> wrote: >> >> > On Fri, 2012-10-19 at 09:14 +0200, wasif masood wrote: >> >> > > >> >> > > >> >> > > Hi all, >> >> > > >> >> > > >> >> > > I am planning to buy some nodes but now I am no longer >> >> > inclined >> >> > > towards Telosbs any more. I need some suggestions about >> >> > which platform >> >> > > to buy, I have the following criteria in mind. >> >> > > >> >> > > >> >> > > 1)- Resource Constraints > 48K RAM and 10K ROM, >> >> > >> >> > >> >> > I think you have this backwards :) >> >> > >> >> > > 2)- Reliable Hardware, something better than MSP430. >> >> > >> >> > >> >> > Why do you think is unreliable? >> >> > >> >> > > 3)- Reliable communication support, atleast CC2420 or >> >> > better. >> >> > > 4)- Not necessary confined to 802.15.4, or Zigbee >> >> > standards. >> >> > > >> >> > > >> >> > > Your suggestions would be highly appreciated. >> >> > >> >> > >> >> > Personally I would recommend you the Z1 mote (shameless >> >> > self-advertising, sorry), UCmotes and econotags (not ported >> >> > to >> >> > tinyos >> >> > but this shouldn't be too dificult). >> >> > >> >> > --Antonio >> >> > >> >> > > Regards. >> >> > > Wasif Masood >> >> > > >> >> > > >> >> > > _______________________________________________ >> >> > > Tinyos-help mailing list >> >> > > [email protected] >> >> > > >> >> > >> >> > >> >> > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > -- >> >> > Wasif Masood >> >> > >> >> > >> >> >> >> >> > >> > >> > >> > -- >> > Wasif Masood >> > >> > >> > _______________________________________________ >> > Tinyos-help mailing list >> > [email protected] >> > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > > > > -- > Eric B. Decker > Senior (over 50 :-) Researcher > > > ________________________________ > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
