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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head> <title>TinyOS 1.1.4 Significant Changes</title></head><body bgcolor="#f8f8ff" link="#005bb7" vlink="#005bb7"><table border="0" hspace="4" cellspacing="2" width="100%" cellpadding="3"> <tbody> <tr bgcolor="#e0e0ff"> <td width="100%"> <font face="tahoma,arial,helvetica"><b><big><big>Significant Changes in TinyOS between v1.1.3 and 1.1.4</big></big></b> </font> <p> <font face="tahoma,arial,helvetica">Last updated 5 February2004 </font> </p> </td> </tr> </tbody></table><p></p><i>Note: While minor releases deliver TinyOS additions andimprovements to the community more quickly, they do so with lesstesting. If your environment requires stability, consider using theprevious major release (TinyOS 1.1.0) or, at the very least, testing yourapplications carefully with the new release before migrating wholesaleto 1.1.3.</i></p><p> This document outlines the changes that have occured in TinyOSsince the last snapshot release (1.1.3) and the current minor release (1.1.4). The major changes in 1.1.4 include the new tython scripting environment plus various bug fixes.<p><table border="0" hspace="4" cellspacing="2" width="100%" cellpadding="3"> <tbody> <tr bgcolor="#e0e0ff"> <td width="100%"><nobr><b><font face="arial,helvetica">TinyOS</font></b></nobr></td> </tr> </tbody></table></p><p>TinyOS 1.1.3 includes <b>Tython</b>. Tython is a TOSSIM scripting environment that uses a Javaimplementation of the Python programming language. Tython allows usersto write scripts to do things such as dynamically move motes, injectpackets, and inspect the internal state of the simulation. Tythonallows full access to the existing Java TinyOS toolchain, so users canwrite a piece of TinyOS messaging code, generate a Java packet objectfrom it using mig, then use Tython to inject those packets into arunning simulation. <P>Tython is integrated with the TinyViz environment;this means that, for example, if a script makes a mote move, a usercan see the movement in the TinyViz visualization and its radioconnectivity will be updated as expected. TinyViz and Tython can berun separately from one another.<p>For more information about Tython, please see the User Manual in the doc/tython directory.</p><table border="0" hspace="4" cellspacing="2" width="100%" cellpadding="3"> <tbody> <tr bgcolor="#e0e0ff"> <td width="100%"><nobr><b><font face="arial,helvetica">Systems</font></b></nobr></td> </tr> </tbody></table><p>The 1.1.2 minor release of task-tinydb is <i>expected</i> to be released simultaneously with TinyOS 1.1.4. The 1.1.2 task-tinydb snapshot will include numerous bug fixes and upgrades. For more information on TinyDB, please see documentation in the doc/ directory. </p><b><font size=4><a href="index.html">Index ></a></font></b> </p></body></html>
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