From f9af3589eb41dc580df8ddf9d4bf5d5e91170ca8 Mon Sep 17 00:00:00 2001
From: scipio Jonathan Hui, Philip Levis, and David Moss
-Draft-Created: 2-Feb-2007
Draft-Version: 1.2
+
-Draft-Version: 1.4
Draft-Modified: 2007-04-09
+Draft-Modified: 2008-05-13
@@ -339,7 +339,7 @@ A TinyOS device MAY support additional 802.15.4 frame formats.Draft-Discuss: TinyOS Developer List <tinyos-devel at mail.millennium.berkeley.edu>
TinyOS has two 802.15.4 frame formats. The first format, the T-Frame, is for TinyOS networks which do not share their channel with other wireless -networking archtiectures. This frame format assumes that TinyOS can use +networking architectures. This frame format assumes that TinyOS can use every bit of the packet and does not need to state that it is a TinyOS packet. T-Frame stands for "TinyOS Frame."
The TinyOS 802.15.4 T-frame format is as follows:
@@ -361,17 +361,16 @@ for "Interoperable Frame." | 802.15.4 Header | 6lowpan | AM type | data | 802.15.4 CRC | +-------------------+---------+------------------------------+--------------+ -AM type is the same as in a T-frame. 6lowpan is the IANA-assigned code -to identify this as a TinyOS packet. At this time, the exact value of -this code has not been determined. To inform 6lowpan that this is not -a 6lowpan packet, the code used MUST be in the range of 192-55.
-The AM type 6lowpan is reserved. A TinyOS program MUST NOT use it.
+AM type is the same as in a T-frame. 6lowpan is the NALP code to identify +this as a TinyOS packet. NALP codes must be in the range of 0-63. +TinyOS uses code 63.
+The AM type 63 is reserved for both T-Frames and I-Frames. A TinyOS +program MUST NOT use it.
An implementation of the T-Frame can be found in tinyos-2.x/tos/chips/cc2420.
-An implementation of the I-Frame will soon be found in -tinyos-2.x/tos/chips/cc2420.
+An implementation of the I-Frame can be found in tinyos-2.x/tos/chips/cc2420.