Hi From TEP111:The data field of message_t stores the single-hop packet payload. It is TOSH_DATA_LENGTH bytes long. The default size is 28 bytes. A TinyOS application can redefine TOSH_DATA_LENGTH at compile time with a command-line option to ncc: -DTOSH_DATA_LENGTH=x.
2010/6/9 Manas Maheshwari <[email protected]> > Hi, > I am starting on tiny-os and working to build an application where my > packet payload can go from 0 to ,say, 1000 bytes. > > I understand that we need to modify the TOSH_DATA_LENGTH parameter to > make this possible. I am not able to figure out that does tiny-os would > always transmit TOSH_DATA_LENGTH ( which would not be optimal) or it > just passes this parameter and the actual payload length bytes only > ( say 30). > > Secondly are there any disadvantages of using high value for > TOSH_DATA_LENGTH, like some wasted memory(in case I am rarely > transmitting TOSH_DATA_LENGTH bytes) on the motes. > > Thanks > MM > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >
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