Hello , Sorry for being too cryptic. I am transmitting data telosb mote at 2.48GHz. I am able to receive the data with another telosb mote acting as a basestation. Now I want to receive the data with another hardware called usrp. I can only get the data at the usrp end if I set the sampling rate at 4MHz at the usrp. After a long time of investigation, I have realised that the data at the telosb sender end is being generated at 4MHz, and this is controlled by the the DCO even though the bandwith of the message being transmitted is less than 100KHz. I want to reduce the 4MHz of the DCO to say 1MHz or even below. I need this because I am doing extra computations at the usrp end online, not just saving the data, so it is to much computations per second.
Respectfully, H. E. Baidoo-Williams, GRA, University of Iowa From: Eric Decker [mailto:[email protected]] Sent: Saturday, September 08, 2012 12:40 AM To: Baidoo-Williams, Henry E Cc: [email protected] Subject: Re: [Tinyos-help] Help on setting the DCO to 1MHZ or below Can you please be a little bit more specific. Trying to decifer what you are saying isn't working. I've done a lot of work with the msp430 family so can probably help you but not from your description. zigbee is a radio protocol so what are you taling about with regards to sampling? <goog_830844082> On Fri, Sep 7, 2012 at 7:09 PM, Baidoo-Williams, Henry E <<goog_830844082>[email protected]<mailto:[email protected]>> wrote: Hello ,<goog_830844082> I am working on zigbee communiction between telosb and usrp. I realise that I can receive at the usrp end only if I set the sampling rate to 4MHz even though the bandwith of the data is less than 100KHz. After searching for a long time, I have realised the issue has to do with the DCO clock which is set to 4MHz. <goog_830844082> Does any one know how to reduce this setting using CFLAGS on tinyos or perhaps changing some other settings? Any help would be appreciated.<goog_830844082> <goog_830844082> Respectfully,<goog_830844082> H. E. Baidoo-Williams,<goog_830844082> GRA, University of Iowa<goog_830844082> <goog_830844082> ______________________________<goog_830844082>_________________ Tinyos-help mailing list [email protected] <goog_830844082> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help -- Eric B. Decker Senior (over 50 :-) Researcher
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