1. By default, the CSMA is used. Therefore the transmission costs more time due to the backoffs.
2. The on air transmission time as well as the cc2420 buffer writing time varies according to the packet size. A small size packet requires a shorter period for transmission. You should read the CC2420TransmitP file, and do some test based on the program given in the ./apps/ Janric Liu From: tinyos-help-boun...@millennium.berkeley.edu [mailto:tinyos-help-boun...@millennium.berkeley.edu] On Behalf Of wasif masood Sent: Thursday, February 07, 2013 11:03 PM To: tinyos forum Subject: [Tinyos-help] Time to transmit in CC2420! Hi All, I know this is probably an old topic but I still couldn't find any solution to that. Well, I am using CC2420Transmit.Send interface which is connected to CC2420TransmitC. Even at this lowest level of wiring the time elapsed between the Send and SendDone signal is in 10's of milliseconds (I have tested it for both Z1 and TelosB). Is there any way I can reduce this time? Please share your expertise! Regards, Wasif Masood
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