Hi,
I'm monitoring the data packets from the Delta app in boomerang with
Listen.java. Most packets are of length 20bytes, then a few shorter
packets of 14bytes are popping up.
1. What is the purpose of the shorter packet?
2. Can anyone clarify the packet structure below, since it seems that
there are a couple of bytes to many?
The struct of the standard header is defined here:
C:\cygwin\opt\moteiv\tos\lib\CC2420Radio\AM.h - 11bytes long where the
11th byte is the data, meaning only the first 10bytes constitutes the
header.
The struct of the MultihopMsg is defined here:
C:\cygwin\opt\moteiv\tos\lib\MultiHopLQI\MultiHop.h - also 11bytes long
and is consistent with Multihop message of 10bytes found at:
http://www.moteiv.com/support/tmote-message-format.html
20 01 08 0C FF FF FF FF 08 7D 01 00 01 00 0B 00 0B 00 FC 21 0A 00 00 00
5E 0B FF
FF 03 00 FF FF FF FF FF FF FF 7F FF 7F FF 7F packet length: 42
20 01 08 0D FF FF FF FF 08 7D 01 00 01 00 0C 00 0C 00 FC 21 0B 00 00 00
5F 0B FF
FF 03 00 FF FF FF FF FF FF FF 7F FF 7F FF 7F packet length: 42
14 01 08 0E FF FF FF FF 07 7D 01 00 01 00 0D 00 0D 00 01 00 FF FF FE FF
FF 00 00
00 00 00 packet length: 30
20 01 08 0F FF FF FF FF 08 7D 01 00 01 00 0E 00 0E 00 FC 21 0C 00 00 00
5E 0B FF
FF 03 00 FF FF FF FF FF FF FF 7F FF 7F FF 7F packet length: 42.
So what is exactly the rest of the package?
Thanks,
Mikael
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