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@@ -8,7 +8,7 @@
<tr align="center" bgcolor="#e4e4e4">
<td>
<h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
- <p>Last Updated: December 4, 2008</p>
+ <p>Last Updated: December 6, 2008</p>
</td>
</tr>
</table>
@@ -671,52 +671,28 @@
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</table>
-<p><b>nuttx-0.3.19</b>.
- The 31<sup>st</sup> release of NuttX (nuttx-0.3.19) is available for download
+<p><b>nuttx-0.4.0</b>.
+ The 32<sup>nd</sup> release of NuttX (nuttx-0.4.10) is available for download
from the <a href="http://sourceforge.net/project/showfiles.php?group_id=189573">SourceForge</a>
website.
The change log associated with the release is available <a href="#currentrelease">here</a>.
Unreleased changes after this release are available in CVS.
These unreleased changes are listed <a href="#pendingchanges">here</a>.
</p>
+ This release adds graphics support and a tiny windowing subsystem.
+ That new graphics subystem is documented in a <a href="NXGraphicsSubsystem.html">user manual</a>.
+ No other substantial changes were made.
+</p>
<p>
- This release includes the following new feature:
-<p>
-<ul>
- <li>Add <code>poll()</code> and <code>select()</code> APIs that may be used to monitor for data
- availability on character devices or TCP/IP sockets.
- </li>
- <li>Implemented support TCP/IP connection backlog.
- This allows <code>poll()</code>/<code>select()</code> to wake-up on new connections to a listener socket.
- </li>
- <li>Added definition of a framebuffer driver and implement framebuffer drivers for the
- simulated platform and the TI DM320 (untested as of the initial check-in).
- </li>
- <li>Partially developed a graphics framework based on the framebuffer drivers, however,
- this will not be ready for use for a few more release.
- Currently this includes only a few color conversion routines and some rasterizing functions.
- A tiny windowing system is under development but not ready for check-in yet.
- <li>Added support for fixed precision math.
- </li>
- <li>Added support for outgoing multicast packets.
- </li>
-</ul>
-<p>
- Several bugs were fixed, the most important of which are:
+ The version number was bumped up to 0.4.0 in part to reflect the new graphics subsystem,
+ but also to recognize the NuttX is approaching complete functionality. In the 0.3.x
+ versions, network support was added, Pascal P-code runtime support was added, FAT and
+ ROMFS filesystems were added, MMC/SD and USB device support were added. There were
+ also numerous extensions to the NuttShell, NuttX APIs, and architecture ports.
</p>
- <li>Fixed an important bug in the TCP/IP buffering logic.
- When TCP/IP read-ahead is enabled and not recv() is in-place when a TCP/IP packet is received,
- the packet is placed into a read-ahead buffer.
- However, the old contents of the read-ahead buffer were not being cleared and old data would
- contaminate the newly received buffer.
- </li>
- <li>Changed the behavior of the serial driver read.
- It now returns data as it is available rather than waiting for the full requested read size.
- This makes functions like <code>fgetc()</code> work much more smoothly.
- </li>
<p>
- These changes were verified only on the Neuros OSD (ARM) and the Linux simulator using a
- Linux development environment.
+ These changes were verified only on the NuttX simulation platform with X11 windows
+ simulating a device framebuffer.
Please report any errors to me.
</p>
@@ -1274,30 +1250,16 @@ Other memory:
</table>
<pre><ul>
-nuttx-0.3.19 2008-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
- * Add poll() and select() APIs (in the initial check-in, these work only with character devices)
- * Add poll() methods to /dev/null, /dev/zero, pipes, fifos, and serial drivers.
- * Add examples/poll for testing poll() and select()
- * Fix hostile behavior of getc, fgetc, getchar, etc.: the serial driver was waiting for a
- full buffer of read data before return. This means that getc would stall when it needed
- to refill the input buffer. The old behavior (read full blocks) might be useful in other
- contexts, so it is still available within the driver as a configuration option.
- * Implement poll() and select() support for TCP/IP sockets
- * Fixed an important bug in the TCP/IP buffering logic. When TCP/IP read-ahead is enabled
- and not recv() is in-place when a TCP/IP packet is received, the packet is placed into
- a read-ahead buffer. However, the old contents of the read-ahead buffer were not being
- cleared and old data would contaminate the newly received buffer.
- * Implemented support for connection backlog. The size of the backlog is specified by the
- second argument of the standard listen() API. Hooks are provided to support poll()/select()
- waiting for connections, with a subsequent call to accept() to use the backlogged connection.
- * Fixed a minor bug in accept(). It should allow the address and addresslen values to be NULL
- * Added first-cut definition for a framebuffer interface (and simulated framebuffer for testing
- purposes only)
- * Added fixed precision math support
- * Added some color converson routines into what may become a real graphics library someday.
- * Added a framebuffer driver for the DM320 (untested on initial check-in)
- * Network: add support for outgoing multicast addresses
- * Added some rasterizers to the graphics library
+nuttx-0.4.0 2008-12-06 Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
+ * Initial release of a tiny windowing system for NuttX
+ * Add fixed precision sin() and cos() (not well tested at initial check-in)
+ * Add an X11-based simulated framebuffer driver
+ * The simulated target now has an option (CONFIG_SIM_WALLTIME) that will let the simulation
+ run in more-or-less realtime.
+ * Added more more extensive window support: frames, toolbars, etc.
+ * Added support for bitmap fonts
+ * Integrated the new font support with a font test in examples/nx
+ * Add documentation for NX graphics subsystem
pascal-0.1.2 2008-02-10 Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
@@ -1325,15 +1287,7 @@ buildroot-0.1.2 2007-11-06 &lt;spudmonkey@racsa.co.cr&gt
</table>
<pre><ul>
-nuttx-0.3.20 2008-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
- * Initial release of a tiny windowing system for NuttX
- * Add fixed precision sin() and cos() (not well tested at initial check-in)
- * Add an X11-based simulated framebuffer driver
- * The simulated target now has an option (CONFIG_SIM_WALLTIME) that will let the simulation
- run in more-or-less realtime.
- * Added more more extensive window support: frames, toolbars, etc.
- * Added support for bitmap fonts
- * Integrated the new font support with a font test in examples/nx
+nuttx-0.4.1 2008-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
pascal-0.1.3 2008-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;