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Diffstat (limited to 'nuttx/Documentation/NuttX.html')
| -rw-r--r-- | nuttx/Documentation/NuttX.html | 96 |
1 files changed, 46 insertions, 50 deletions
diff --git a/nuttx/Documentation/NuttX.html b/nuttx/Documentation/NuttX.html index dd767ff36..fe9110565 100644 --- a/nuttx/Documentation/NuttX.html +++ b/nuttx/Documentation/NuttX.html @@ -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: October 18, 2010</p> + <p>Last Updated: October 26, 2010</p> </td> </tr> </table> @@ -772,10 +772,10 @@ </tr> </table> -<p><b>nuttx-5.11 Release Notes</b>: +<p><b>nuttx-5.12 Release Notes</b>: <p> - This 58<sup>th</sup> release of NuttX, Version 5.11, was made on October 1, 2010 and is available for download from the + This 59<sup>th</sup> release of NuttX, Version 5.12, was made on October 26, 2010 and 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. @@ -785,26 +785,29 @@ This is primarily a bugfix release and includes some important corrections to the code: <ul> <li> - One very important bug fixes a race condition that can occur using - semaphores that can be awakened by signals. Under this particular - race condition, a task could hang waiting for a semaphore. - </li> - <li> - Corrections to lm3s8962 port contributed by Larry Arnold. That - port is purported to work correctly with these changes in place. + Fixed an important error in the signal trampoline logic. Essentially, + interrupts are re-enabled while the signal handler executes, but the + logic to re-disable the interrupts before returning from the signal + handler trampoline was missing. Under certain circumstances, this + can cause stack corruption. This was discovered by David Hewson on + an ARM9 platform, but since the code has been leveraged, the bug has + been propogated from ARM to Cortex-M3, AVR32, M16C, SH1, ZNEO, eZ80, + Z8, and Z80 -- almost every architecture. The correction has been + incorporated for all architectures but only verified on a few. </li> </ul> </p> <p> - Plus less critical bugfixes as detailed in the ChangeLog. New features - include: + Other notable changes in NuttX-5.12 include: <ul> <li> - * A new configuration to support the mbed.org LPC1768 board (Contributed - by Dave Marples), and + A complete port for the AVR32 (AT91UC3B0256) is incorporated in the + source tree. Testing of this port is underway now. This release + was made before verifying this port in order to get the important + bugfix in place. </li> <li> - * A driver for the Atmel AT45DB161D 4Mbit SPI FLASH part. + Other miscellaneous bugfix and enhancements as noted in the ChangeLog. </li> </ul> </p> @@ -1342,7 +1345,8 @@ This port is currently under development. All code is complete for the basic NuttX port including header files for all AT91UC3* peripherals. Testing of this port is underway now. - It is hoped that the first, released AVR32 port will appear in version 5.12 of NuttX, probably near the beginning of September, 2010. + The untest AVR32 is present in the 5.12 release of NuttX. + It is hoped that the first, verified AVR32 port will be released in version 5.13 of NuttX. </p> </ul> </td> @@ -1880,28 +1884,31 @@ Other memory: </table> <ul><pre> -nuttx-5.11 2010-10-01 Gregory Nutt <spudmonkey@racsa.co.cr> - - * configs/ea3131/src/up_fillpage.c - Added new configuration item - CONFIG_PAGING_BINPATH. If CONFIG_PAGING_BINPATH is defined, then it - is the full path to a file on a mounted file system that contains - a binary image of the NuttX executable. Pages will be filled by - reading from offsets into this file that correspond to virtual - fault addresses. up_fillpage.c implements logic to perform page - files using the CONFIG_PAGING_BINPATH file. - * configs/mbed - Add configuration to support the mbed.org LPC1768 - board (Contributed by Dave Marples). - * sched/sem_wait.c and sem_waitirq.c - Eliminate a race condition - that can occur when a semaphore wait is interrupt by a signal. - (see email thread: http://tech.groups.yahoo.com/group/nuttx/message/530) - * drivers/mtd/at45db.c - Add a driver for the Atmel AT45DB161D 4Mbit - SPI FLASH part (untested on initial check-in). - * arch/arm/src/lm3s and arch/arm/include/lm3s - Corrections for the - lm3s8962 port contributed by Larry Arnold. That port is purported - to work correctly with these changes in place. - * examples/ostest/prioinherit.c - Need to reinitialize globals if - test is ran repeatedly in a loop. - * configs/ez80f910200zco - Updated to used ZDS-II 4.11.1 +nuttx-5.12 2010-10-26 Gregory Nutt <spudmonkey@racsa.co.cr> + + * arch/avr - Add a place to support AVR family processors. + * arch/avr/include/avr32 and arch/avr/src/avr32 - Add support for AVR32 + (all of the AVR32 is a work in progress). + * arch/avr/include/at91uc3 and arch/avr/src/at91uc3 - Add support + for the AT91 UC3A/B family of AVR32 MCUs. + * confgs/avr32dev1 - Add support for the Atmel AVR32DEV1 board featuring + the AT91UC3B0256 MCU. This board is produced by www.mcuzone.com. + * include/stdlib.h, lib/Makefile, lib/lib_abs.c, lib/lib_labs.c, + lib_labs.c, lib_llabs.c, lib_imaxabs.c - Add abs(), labs(), llabs(), and + imaxabs(). + * Add include/inttypes.h + * arch/hc/src/mc9s12ne64 - This hcs12 port grew a few more files. But it + is still a long way from complete. + * arch/*/src/*/*_sigdeliver.c - Fixed a serious error in the signal + trampoline logic. Essentially, interrupts are re-enabled while the + signal handler executes, but the logic to re-disable the interrupts + before returning from the signal handler trampoline was missing. Under + certain circumstances, this can cause stack corruption. This was + discovered by David Hewson on an ARM9 platform, but since the code + has been leveraged, the bug has been propogated from ARM to Cortex-M3, + AVR32, M16C, SH1, ZNEO, eZ80, Z8, and Z80 -- almost every architecture. + The correction has been incorporated for all architectures but only + verified on a few. pascal-2.0 2009-12-21 Gregory Nutt <spudmonkey@racsa.co.cr> @@ -1931,18 +1938,7 @@ buildroot-1.8 2009-12-21 <spudmonkey@racsa.co.cr> </table> <ul><pre> -nuttx-5.12 2010-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr> - - * arch/avr - Add a place to support AVR family processors. - * arch/avr/include/avr32 and arch/avr/src/avr32 - Add support for AVR32 - (all of the AVR32 is a work in progress). - * arch/avr/include/at91uc3 and arch/avr/src/at91uc3 - Add support - for the AT91 UC3A/B family of AVR32 MCUs. - * confgs/avr32dev1 - Add support for the Atmel AVR32DEV1 board featuring - the AT91UC3B0256 MCU. This board is produced by www.mcuzone.com. - * include/stdlib.h, lib/Makefile, lib/lib_abs.c, lib/lib_labs.c, - lib_labs.c, lib_llabs.c, lib_imaxabs.c - Add abs(), labs(), llabs(), and - imaxabs(). +nuttx-5.13 2010-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr> pascal-2.1 2010-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr> |