On Apr 1, 2007, at 7:02 PM, Thang Le wrote:
From my understanding, in TinyOS 1.1.15, SendDone is invoked when the package is successfully queued at the sender. Even without any receiver, SendDone is still called.
sendDone is signaled when the packet is transmitted. The error code denotes whether or not the transmission succeeded. Reasons for failure can include the radio being turned off mid-transmission, hardware failure, etc.
You will never receive a sendDone before the packet is transmitted. That would release the packet buffer to the application, which is problematic.
Note that since sendDone denotes a data-link (single-hop) transmission, it is signaled when the packet goes one hop, not the multihop frame within arrives at its destination.
Phil _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
