When a sender tranmits a message to a receiver the receiver can send an acknowledgment (ACK) message. The purpose of the ACK is to let the sender know the message was successfully received. If the CC2420_NO_ACKNOWLEDGEMENTS option is set the receiver does not send an ACK when it receives a message.
--- Renee Azhen <[EMAIL PROTECTED]> wrote: > hi, all, > I am using the collection protocol, and found that > if I use: > CFLAGS += -DCC2420_NO_ACKNOWLEDGEMENTS > CFLAGS += -DCC2420_NO_ADDRESS_RECOGNITION > in the app makfile, network almost failed, it can't > deliver any packet. > > So is there anyone know what is the usage of that > line in Makefile?? > > thanks > Sam > > > --------------------------------- > ÑÅ»¢ÓÊÏ䣬ÄúµÄÖÕÉúÓÊÏ䣡> _______________________________________________ > 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
