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<tr align="center" bgcolor="#e4e4e4">
<td>
<h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
<p>Last Updated: October 6, 2011</p>
<p>Last Updated: November 12, 2011</p>
</td>
</tr>
</table>
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</tr>
</table>
<p><b>nuttx-6.10 Release Notes</b>:
<h2>NuttX-6.11 Release Notes</h2>
<p>
The 77<sup>th</sup> release of NuttX, Version 6.10, was made on October 6, 2011, and is available for download from the
The 78<sup>th</sup> release of NuttX, Version 6.11, was made on November 12, 2011, and is available for download from the
<a href="http://sourceforge.net/projects/nuttx/files/">SourceForge</a> website.
Note that release consists of two tarballs: <code>nuttx-6.10.tar.gz</code> and <code>apps-6.10.tar.gz</code>.
Note that the release consists of two tarballs: <code>nuttx-6.11.tar.gz</code> and <code>apps-6.11.tar.gz</code>.
Both may be needed (see the top-level <code>nuttx/README.txt</code> file for build information)
The change log associated with the release is available <a href="#currentrelease">here</a>.
Unreleased changes after this release are available in SVN.
These unreleased changes are also listed <a href="#pendingchanges">here</a>.
</p>
<p>
This release includes a few new features and several important bug fixes.
The new features (some still incomplete) include:
This release is a maintenance release that includes a few new features
and some important bugfixes. New features include:
</p>
<ul>
<li><b>USB Device</b>.
CDC ACM serial class device-side driver
<li><b>NX Graphics</b>.
New interfaces to read from graphics memory.
</li>
<li><b>RTC</b>.
Now supports hi-res and lo-res hardware RTC. The lo-res RTC runs at 1Hz.
<li><b>Drivers</b>.
The AT24xx FLASH drivers will now support clustering of blocks to achieve a larger, more usable block size for FAT.
</li>
<li><b>STM32 I2C driver</b>.
Now supports faster, polled mode of operation. Added an I2C trace capability.
<li><b>STM32</b>.
LCD color corrections.
</li>
<li><b>ADS7843E touchscreen driver</b>.
As used on the SAM3U-EK development board.
<li><b>PIC32</b>.
Board configuration for the Microchip PIC32 Ethernet Starter kit (not yet verified),
new GPIO support library,
button and LED support for the Sure Electronics PIC32MX board.
A lot of progress has been made on the PIC32 NuttX port, but it is still not ready for prime time.
</li>
<li><b>AT91SAM3U SPI driver</b>.
To support the ADS7843E toucscreen
</li>
<li><b>X11 Support on simulation target</b>.
Build errors in the X11 windows for the simulated target have been correct.
Added support for a simulated touchscreen on the X11 window (based on mouse inputs).
</li>
<li><b>System Timer</b>.
Added support for a 64-bit system timer.
</li>
<li><b>TIFF Support</b>.
Added a TIFF library (currently used for storing LCD screen shots).
</li>
<li><b>LCD Support</b>.
Added a test to verify that we read and write correct to LCD GRAM memory.
</li>
<li><b>I2C tool</b>.
Extended to support to include a verify command and repititions and auto-address increment for most commands.
</li>
<li><b>USB terminal example</b>.
Line oriented serial bridge connects a host USB serial terminal to a host UART serial terminal.
</li>
<li><b>Build System</b>.
<code>apps/Makefile</code> will now include external directories in the application build.
<li><b>NXP LPC3152</b>.
Board configuration for the Embedded Artists EA3152.
</li>
</ul>
<p>
Bugfixes, order roughly on decreasing criticality include the following.
The first two bugs are consider critical.
The first two bugfixes are considered critical.
</p>
<ul>
<li><b>Message Queues</b>.
Correct errors in<code>mq_timedsend()</code> and <code>mq_timedrecieve()</code>.
</li>
<li><bFAT></b>.
Writes that cross sector boundaries, stray write into the FAT, and a FAT long file name issue.
</li>
<li><b>NXFFS</b>.
Added a missed error check. Files cannot be opened for writing if they are already opened for reading.
Corrected critical bugs in initialization, some full FLASH handling,
and errors in certain cases where the FLASH is repacked.
</li>
<li><b>Library</b>.
<code>fopen()</code> for append modse was not appending.
<li><b>ARM EABI</b>.
Fix stack aligment required for passing floating point values.
</li>
<li><b>STM32 I2C driver</b>.
Correct another conflict between concurrent FSMC and I2C1 accesses. Fixed some bad error detection logic.
<li><b>Build system</b>.
Fix build issues when g++ is used as the compiler.
</li>
<li><b>STM32 SDHC driver</b>.
Interrupts were being left disabled.
<li><b>NX Graphics</b>.
Bitmap error handling, correct RGB color conversion macros, Error when the background window is released.
</li>
<li><b>STM32</b>.
RTC build fixes, LCD color corrections.
</li>
<li><b>C Library</b>.
<code>fclose()</code> return value.
</li>
<li><b>Simulation target</b>.
build fixes.
</li>
</ul>
<p>
@ -1281,15 +1266,20 @@
<tr>
<td><br></td>
<td>
<b>NXP LPC315x</b>.
<b>NXP <a href="http://ics.nxp.com/products/lpc3000/lpc313x.lpc314x.lpc315x/">LPC315x</a></b>.
Support for the NXP LPC315x family has been incorporated into the code base as of NuttX-6.4.
Support has added for the Embedded Artists EA3152 board in NuttX-6.11.
</p>
<ul>
<p>
<b>STATUS:</b>
The MCU support logic is present but as of this writing has not been verified on hardware.
Because of the high degree of compatibility between the LPC313x and LPC315x family, it
Basic support is in place for both the LPC3152 MCU and the EA3152 board.
Verification of the port was deferred due to tool issues
However, because of the high degree of compatibility between the LPC313x and LPC315x family, it
is very likely that the support is in place (or at least very close).
At this point, verification of the EA3152 port has been overcome by events and
may never happen.
However, the port is available for anyone who may want to use it.
</p>
</ul>
</td>
@ -1985,10 +1975,10 @@
<ul>
<p>
<b>STATUS:</b>
This port is code complete and has begun testing.
Testing is, unfortunately, delayed until I obtain some additional test equipment
(you can't use PICkit 2 with the PIC32; you need PICkit 3. And, to make things worse,
my PICKit3 just hangs when I try to debug).
This port is code complete and partially testing.
Initial testing was, unfortunately, delayed due to test equipment issues.
In the mean time, I received the Sure Electronics and the Microchip PIC32 Ethernet Starter kit.
I expect that this port will be functional when those other ports are functional, but I have not revisited this.
</p>
</ul>
</td>
@ -2009,9 +1999,9 @@
<ul>
<p>
<b>STATUS:</b>
This port is code complete and has begun testing.
I hope to use the on-board LEDs to work around the debug problems with the PCL Logic board (see above).
Update: Work on this board has stalled due to higher priority tasks.
This port is code complete and has considerable test testing.
The port for this board was nearly complete in NuttX 6.11, but still requires a few bug fixes before it will be ready for prime time.
Work is ongoing as time permits and I expect a solid port for this board in NuttX 6.12.
</p>
</ul>
</td>
@ -2032,7 +2022,8 @@
<p>
<b>STATUS:</b>
This port was started a shelved... The Starter Kit (even with the MEB) has no serial port.
I will have to come up with a different bring-up strategy to work with this board.
I will have to come up with a different bring-up strategy to work with this board (probably using
an external MAX2232 board for UART support).
</p>
</ul>
</td>
@ -2615,93 +2606,64 @@ Other memory:
</table>
<ul><pre>
nuttx-6.10 2011-10-06 Gregory Nutt &lt;gnutt@nuttx.org&gt;
nuttx-6.11 2011-11-12 Gregory Nutt &lt;gnutt@nuttx.org&gt;
* lib/stdio/lib_fopen.c: Fix an error in fopen(); the file pointer was not
being positioned at the end of the file when the &quot;a&quot; and &quot;a+&quot; modes are
used. There are other issues with the &quot;a+&quot; modes (see the top-level TODO
list).
* drivers/usbdev/cdc_serial.c and include/nuttx/usb/cdc.h and cdc_serial.h:
Add support for the CDC ACM serial device class.
* fs/fat/fs_fat32.c: Fix a critical bug in the write logic: It a tiny write
cross a sector boundary, then two sector writes will occur. The first part
in the first sector may be written to the wrong sector number.
* fs/fat/fs_fat32util.c: Fix a stray write into the FAT (always sector 964 on
FAT32). This bug will cause some lost chains. I'm sure this bug could
corrupt files but at present, the only thing I have seen is that before
fixing this bug, the Windows chkdsk utility would report these lost chains.
* arch/arm/src/stm32/stm32_i2c.c: Driver can now operate in a faster polled
mode (at the expense of using more cpu cycles).
* arch/arm/src/stm32/stm32_i2c.c: Add trace debug capability. Enabled with
CONFIG_I2C_TRACE.
* arch/arm/src/stm32/stm32_i2c.c: Fix another bug where I2C conflicts with FSMC
being enabled. That time at the tail end of the transaction where there is
an unfinished stop condition.
* sched/mq_timedreceive.c and sched/mq_timedsend.c: The count of threads
waiting on the message queues was not being decremented after a timeout.
This would cause the accounting logic to become out of sync and the, perhaps,
an assertion to be triggered. This is an important bug and fixes a
potential crash when using mq_timedreceived() and mq_timedsend().
* sched/mq_sndinternal.c: Related to the above, the send logic was incrementing
the wrong counter when it waited as part of the mq_timedsend.c logic.
* fs/fat: Fix an error in the long file name logic: If the long file name
is an even multiple of 13 bytes in length, then it should not include a
NULL terminating character. Fix contributed by Kaushal Parikh.
* configs/sim/nx11: Created a separate configuration to build the NX
example using the a simulated framebuffer driver on an X11 window. This
example has been verified on Ubuntu 9.09 (it does not work on Cygwin).
* arch/sim/src/up_touchscreen.c and up_x11eventloop.c: Adds support for a
simulated NuttX touchscreen device using mouse/pointer feedback from an
x11 window.
* configs/sim/touchscreen: Adds a configuration to verify the simulated
touchscreen driver (Does not work on Cygwin).
* configs/sam3u/touchscreen: This is the configuration that I plan to use
to verify the SAM3U-EK touchscreen driver. However, as of this writing,
there is no touchscreen driver for the board.
* CONFIG_RTC_HIRES: Add an option to support either a high-resolution RTC
that completely replaces the system timer tick but may overflow and lose
time when the MCU is off and also for a low-resolution (1 sec/tick) RTC
that can run until 2106 with no overflow. But in this latter case, higher
resolution time must come from the system timer.
* CONFIG_SYSTEM_UTC: Removed support for the UTC system timer. It just
doesn't do enough to be worth the CPU cycles or the complexity.
* CONFIG_SYSTEM_TIME16: Added support for an optional 64-bit system timer.
* fs/fat/fs_fat32util.c: Add support for FAT date/time stamps; Enabled via
CONFIG_FS_FATTIME.
* arch/arm/src/sam3u/sam3u_spi.c: Add an SPI driver for the AT91SAM3U.
* drivers/input/ads7843e.c and include/nuttx/input/ads7843e.h: Add a
driver for the TI ADS7843E touchscreen controller.
* fs/nxffs/nxffs_open.c: Fix an error when a file is open for writing; since
the file will get deleted it is already exists, there must be a check if
there are other open references to the file.
* arch/arm/src/stm32/stm32_sdio.c: Fixed an error where during SDHC
initialization interrupts were not being re-enabled. Caused more subtle
errors than you would think.
* arch/arm/src/stm32/stm32_i2c.c: Fixed an error where I2C timeouts appeared
to be successful transfers.
* configs/sim/nsh2: Add another simulated NSH configuration. This one
supports X11 graphics, C++, and exercises graphic functions as built-in
commands.
* arch/arm/stm32/Make.defs: Don't build stm32_rtc.c if CONFIG_RTC is not
selected. Doing so will cause errors if other configuration dependencies
are not met.
* configs/stm3210e-eval/src/up_lcd.c: Color corrections for SPFD5408B LCD
do not work with R61580 LCD.
* configs/pic32-starterkit: Beginning of a configuration for the Microchip
PIC32 Ethernet Starter Kit. Hmmm.. I don't have a clue how to test this
with no serial port?!
* lib/stdio/lib_fclose.c: fclose() always returns an error (EOF) when it
closes a read-only file. This is because it calls flush() which will
fail on read-only files. No harm is done other that a bad value is
returned.
* arch/sim/src/Makefile: Correct build issue for sim/nsh2 target. Old
libboard.a was not being cleaned.
* arch/mips/src/pic32mx/pic32mx-gpio*.c: Add GPIO support for the PIC32MX.
* configs/sure-pic32mx/src/up_leds.c and up_buttons.c: Add button and LED
support for the Sure Electronics PIC32MX board.
* configs/ea3152: Add a configuration for the Embedded Artists LPC3152
daughter board (with the same base-board used with configs/ea3131)
* graphics/nxmu/nx_getrectangle.c, graphics/nxsu/nx_getrectangle.c,
graphics/mxtk/nx_getwindow.c, graphics/nxmu/nx_gettoobar.c: New
interfaces to read from graphics memory
* graphics/nxbe/nxbe_bitmap.c: Fix an error in the error handling that
can cause valid bitmaps to fail to render.
* include/nuttx/rgbcolors.h: Fix errors in some 16- and 8-bit color
conversion macros.
* tools/incdir.sh: Fix issues when g++ is used as the compiler. It was
not being recognized and handled properly.
* graphics/nxsu/nx_releasebkgd.c: Fix a bad cast that was causing
problems with the background window was released.
* fs/nxffs/nxffs_pack.c: Correct a critical bug in the NXFFS file system:
When repacking the filesystem, there was a missing check to see if an
inode structure would fit at the end of a block. This is a rare case
if the block size is large, but can be common for tiny block sizes
and results in a crash and file system corruption.
* fs/nxffs/nxffs_initialize.c: Fix an initialize error. If the FLASH
is on power-up, NXFFS will fail to initialize correctly.
* fs/nxffs/nxffs_write.c and nxffs_pack.c: Fix an error that can occur
when attempt to write to FLASH volume that is completely full but
has no value inodes on it.
* drivers/mtd/at24xx.c: Now supports a configurable block size that
supports using "clusters" of AT24 pages as blocks. This allows bigger
block sizes and more efficient use of EEPROM when the AT24 is used to
support a file system (such as NXFFS). (Contributed by Hal Glenn).
* include/nuttx/rgbcolors.h: More fixes to RGB color conversion
macros.
* arch/arm/src/common/up_createstack.c and up_usestack.c: For ARM EABI
the stack must be aligned to 8-byte boundaries. This is necessary for
passing aligned floating point values under EABI. Fix contributed by
David Sidrane.
* Numerous changes and fixes to the PIC32 interrupt handing logic. The
PIC32 port is almost complete but still not ready for prime time.
apps-6.10 2011-10-06 Gregory Nutt &lt;gnutt@nuttx.org&gt;
apps-6.11 2011-11-12 Gregory Nutt &lt;gnutt@nuttx.org&gt;
* apps/system/i2c: Add repitition and address auto-incrementing so that
and command can be executed numerous times. Add a new verify command
that will write to a register, read from register, and verify that
returned value.
* apps/graphics/tiff: Add a library that can be used to create TIFF files.
* apps/examples/tiff: Add a unit test for the TIFF file creation logic
* apps/examples/lcdrw: Add a test to verify if you can or can or read
data from an LCD correctly.
* apps/examples/usbterm: A USB terminal example.. more of a USB chat or
serial bridge: Data received on local console echoed via USB serial;
data received on USB serial is echoed on the local console.
* apps/examples/touchscreen: Add a simple, generic test for any
touschscreen driver.
* Makefile: The apps/ Makefile now checks for an apps/external directory
or symbolic link. If such a directory/link exists (and has a Makefile),
it will be added to the apps/ build. This allows external directories
to be included into the apps/ build by simply creating a symbolic link.
There were no major changes to the apps package in NuttX 6.11
pascal-1.0 2011-05-15 Gregory Nutt &lt;gnutt@nuttx.org&gt;
@ -2744,24 +2706,9 @@ buildroot-1.10 2011-05-06 &lt;gnutt@nuttx.org&gt;
</table>
<ul><pre>
nuttx-6.11 2011-xx-xx Gregory Nutt &lt;gnutt@nuttx.org&gt;
nuttx-6.12 2011-xx-xx Gregory Nutt &lt;gnutt@nuttx.org&gt;
* arch/arm/stm32/Make.defs: Don't build stm32_rtc.c if CONFIG_RTC is not
selected. Doing so will cause errors if other configuration dependencies
are not met.
* configs/stm3210e-eval/src/up_lcd.c: Color corrections for SPFD5408B LCD
do not work with R61580 LCD.
* configs/pic32-starterkit: Beginning of a configuration for the Microchip
PIC32 Ethernet Starter Kit. Hmmm.. I don't have a clue how to test this
with no serial port?!
* lib/stdio/lib_fclose.c: fclose() always returns an error (EOF) when it
closes a read-only file. This is because it calls flush() which will
fail on read-only files. No harm is done other that a bad value is
returned.
* arch/sim/src/Makefile: Correct build issue for sim/nsh2 target. Old
libboard.a was not being cleaned.
apps-6.11 2011-xx-xx Gregory Nutt &lt;gnutt@nuttx.org&gt;
apps-6.12 2011-xx-xx Gregory Nutt &lt;gnutt@nuttx.org&gt;
pascal-3.1 2011-xx-xx Gregory Nutt &lt;gnutt@nuttx.org&gt;