The TinyOS 1.1.3 December 2003 CVS Snapshot is online. The December 2003 snapshot features:
- BMAC: a configurable MAC layer which includes CSMA with collision avoidance, gain control, and channel filtering for channelclear decisions. B-MAC raises max theoretical bandwidth from 42 packets/sec to 53 packets/sec, and outperforms the 1.1 MAC layer by over 100% with respect to packet throughput while achieving 85% channel utilization For a list of changes see http://webs.cs.berkeley.edu/tos/dist-1.1.0/snapshot-1.1.3Dec2003cvs/doc/chan ges-1.1.3.html See http://webs.cs.berkeley.edu/tos/download.html for download and installation info. ------------------------- The intention behind these monthly snapshots is to get the latest code to the community without requiring developers to maintain an up-to-date CVS tree. A CVS snapshot release is very nearly that: a snapshot of the CVS tree in a convenient-to-install package. If you'd like the bleeding edge code and don't mind the inherent risks, upgrade to the snapshot releases as they become available. If stability is important to you, you might want to stay with the fully-tested releases or at least fully-test your apps before migrating wholesale to a snapshot release. In the upcoming February 2004 snapshot: - Tython: a new TOSSIM scripting environment that uses a Java implementation of the Python programming language. Tython allows users to write scripts to dynamically move motes, inject packets, and inspect the internal state of the simulation. Tython allows full access to the existing Java TinyOS toolchain, so users can write TinyOS messaging code, generate a corresponding Java packet object using mig, and then use Tython to inject those packets into a running simulation. Tython is compatible with the TinyViz environment; for example, if a script makes a mote move, a user can see the movement in the TinyViz visualization and its radio connectivity will be updated as expected. (TinyViz and Tython can also be run separately.) - Support for the Telos mote: the Telos mote is our latest mote design. It has an 250kbps 2.4GHz IEEE 802.15.4 Chipcon radio, 20MHz Motorola HCS08 chip w/4K RAM, integrated long-range onboard antenna, and uses USB for I/O (programming, debugging & data collection). -------------------------- As always, please use the SourceForge bug tracking system to report problems. It is at: http://sourceforge.net/tracker/?group_id=28656 For TASK bugs, please use: http://sourceforge.net/tracker/?atid=551233 _______________________________________________ Tinyos-users mailing list [EMAIL PROTECTED] http://mail.Millennium.Berkeley.EDU/mailman/listinfo/tinyos-users
