If you get a sendDone() event and call your next send() event quickly (within tens of milliseconds) then both radios will still be awake and you will be communicating at 100% throughput. Both radios will remain active as long as there is useful communication taking place. In this manner, multiple packets will be received during the same wake-up period.
-David -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Murray, Ben Sent: Tuesday, October 30, 2007 10:48 AM To: Tinyos help Forum (E-mail) Subject: [Tinyos-help] successive messages in LPL - do they use the preamble or do they not need to? [tos2, micaz] When using low power listening if I wish to send two packets over the radio, it is there a special way in which I can make sure they will both be sent after the same preamble such that all receiving motes that caught preamble in front of the first message also received the subsequent second message before they go to sleep again on will LPL/TOS take care of this internally? i.e. if my code look something like this: setRxSleepInterval(500) send(pkt1) --> senddone (confirming send accepted for pkt1) send(pkt2) (does this have to wait for the senddone from pkt1 or will it be put in a queue? Will a LPL node that wakes during the preamble receive both pkt1 and pkt2 during the same transmission in quick succession for (or at least during te same wake period) Many Thanks Ben **************************************************************************** *** Please consider the environment before printing this email. **************************************************************************** *** This email and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may not be divulged to any third party without the express permission of the originator. Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Thales Research & Technology (UK) Limited. **************************************************************************** *** _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
