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Prep for NuttX-6.27 release
This commit is contained in:
Gregory Nutt
+235
@@ -4000,3 +4000,238 @@ Bugfixes (see the ChangeLog for details). Some of these are very important:
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was being confused with a NUL. So if a NUL was received, the
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NSH session would terminate because it thought it was the end of
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file.
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NuttX-6.27
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^^^^^^^^^^
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The 94th release of NuttX, Version 6.27, was made on April 28, 2013,
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and is available for download from the SourceForge website. Note
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that release consists of two tarballs: nuttx-6.27.tar.gz and
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apps-6.27.tar.gz. Both may be needed (see the top-level nuttx/README.txt
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file for build information).
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Additional new features and extended functionality:
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* OS Initialization:
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- Add missing registration of /dev/zero. Registration of /dev/null
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should depend upon conditional compilation. From Ken Pettit.
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* Tasking:
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- Added a new interface to set aside memory on the task's stack. This
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is used (at least in the kernel build) to hold task arguments.
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- Remove up_assert_code(). One assertion routine is enough.
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* Kernel Build:
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- Extensive changes were made to support the kernel build mode. In
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this mode, NuttX is built as a monolithic kernel. NuttX is built
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as a separate kernel mode "blob" and the applications are built
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as a separate user mode "blob". The kernel runs in kernel mode and
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the applications run in user mode (with the MPU restricting user
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mode accesses). Access to the kernel from the user blob is only
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via system calls (SVCalls).
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- Kernel build configurations for the Open1788 board and for the
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STM32F4Discovery now execute correctly.
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- Changes were made to task and thread start-up routines, signal
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handling, data structures, ARMv7-M SVCalls, stack management
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interfaces,
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* Drivers:
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- Driver for the ST7567 LCD Display Module from Univision Technology
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Inc. Contributed by Manikandan.S
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- SPI initialize functions renamed so that multiple SPI blocks can
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be initialized.
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- Extended to support the RAMTRON FM25V01 device. Contributed by
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Lorenz Meier
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- Serial drivers: TIOCSERGSTRUCT ioctls now conditioned on
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CONFIG_SERIAL_TIOCSERGSTRUCT
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* ARMv7-M (Cortex-M3/4):
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- Added support for modifiable interrupt vectors in RAM
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* nuvoTon NUC1xx:
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- Added kernel build support
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* Freescale Kinetis:
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- Add kernel build support
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- Add support for the Kinetis L family of Cortex-M0+ MCUs. Contributed
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by Alan Carvalho de Assis.
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* LPC17xx:
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- Now holds off sleep mode in the IDLE loop is DMA is in progress
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(because sleep mode will disable CPU SRAM).
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* LPC17xx Boards:
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- ZKIT-ARM-1769: Now supports the ST7567 LCD display module. Added
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an nxhello configuration for testing (Manikandan.S).
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- ZKIT-ARM-1769: Add support for both CAN1 and CAN2. Contributed by
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M.Kannan
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- Open1788: Basic support for the WaveShare Open1788 board is complete
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with working OS test, NSH, and graphics configurations.
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- Open1788: Integrated the LPC178x LCD driver with the WaveShare display.
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Touchscreen support is included, howerver, there appears to be an
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issue with the Open1788 touchscreen interrupt signal.
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- Open1788: Now supports SDRAM (used to provide the LCD framebuffer).
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- Open 1788: Reversed sense of the IDLE LCD. It is now off when the
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LPC17 is sleeping and on when awake. That is much a better visual
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indication of the dynamic CPU load
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* LPC17xx Drivers:
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- Added an LCD framebuffer driver for the LPC177x/8x family.
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- Implemented LPC17xx GPDMA support.
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- Integrated the LPC17xx GPDMA support into the SD card driver.
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- SSP driver adapted to work with the LPC178x family.
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- Separate LPC176x and LPC178x GPIO logic; this logic is too different
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to maintain in one file with conditional compilation.
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- Re-design of the GPIO logic for the LPC178x family by Rommel Marcelo.
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* LPC43xx:
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- Added kernel build support
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* STM32
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- Added support for kernel mode build.
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- Added architecure support for the STM32 F427/F437 chips. Contributed
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by Mike Smith
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* STM32 Boards
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- Added a configuration to support a kernel mode build of the OS test
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on the STM32F4Discovery
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* Stellaris LM3S/LM4F
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- Added kernel build support
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- Added support for the 7 UARTs on the LM4F120
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* Stellaris LM4F Boards
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- Added scripts and instructions to simplify use of OpenOCD with ICDI
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(JP Carballo)
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- The basic for the Stellaris LM4F120 Launchpad is complete. This
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includes support for OS test and NSH configurations. Additional
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driver development is needed.
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* Build System:
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- Directories where the same sources files are used to build different
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objects in the first and second pass kernel builds need to keep those
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objects in separate directories so that they are not constantly
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rebuilt.
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* Applications:
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- apps/system/ramtest: Add a simple memory test that can be built
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as an NSH command.
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* Tools:
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- kconfig2html is a new tool which will replace the hand-generated
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documentation of the NuttX configruation variables with auto-
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generated documentation.
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Efforts In Progress. The following are features that are partially
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implemented but present in this release. Most are expected to be fully
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available in NuttX 6.28.
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* A port to the Freescale Freedom KL25Z is complete but not yet stable
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enough. The KL25Z is a low-cost Cortex-M0+ part with 128KB of FLASH
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and 16KB of SRAM. This is is the effort of Alan Carvalho de Assis.
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* Conversion of old configurations to use the kconfig-frontends
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tool is an ongoing effort that will continue for some time.
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At this time, only 32% of the configurations have been converted
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to use the kconfig-frontends tools.
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Bugfixes (see the ChangeLog for details). Some of these are very important:
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* Tasking:
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- Fixed a critical bug: When there is pending C buffered output
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and the system is very busy, the a pthread may be blocked at
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a critical point when trying to exit. Blocking at this critical
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point would cause crashes. All entire task/thread exit logic
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paths were reviewed and failsafe mechanisms were put in place
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to assure that exitting tasks never block after task teardown
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has been started.
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* ARMv6-M:
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- Fixed parameter passing for all system call inline functions with > 3
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parameters
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- Fixed a major problem: The Cortex-M0 has no BASEPRI register but the
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logic of NuttX-6.26 was using it to manage interrupts. Switch to
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using the PRIMASK instead. This means that hardfaults will (again)
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occur when SVC instructions are executed
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* ARMv7-M:
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- Corrected Correct MPU sub-region settings for unaligned regions.
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- In exception handling with CONFIG_NUTTX_KERNEL, need to explicitly
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set and clear the privilege bit in the CONTROL
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- Fixed parameter passing for all system call inline functions with > 3
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parameters
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* Drivers:
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- Support for O_NONBLOCK was not supported in the "upper half"
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serial driver.
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- PL2303 compilation errors
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* Stellaris LM3S/4F
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- Corrected typos in alternate function definitions.
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* LPC17xx Drivers:
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- Added a work-around for an ADC errata. From Chris Taglia
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- Only one ADC pin was configured. Need to configure all that
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are in the ADC0 set. From MKannan
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* File Systems:
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- The FAT logic was not making a distinction between directory
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non-existence and file non-existence so when it you try to
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create a file in a non-existent directory, it would create a
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file with the name of the missing directory. Reported by Andrew
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Tridgell
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- Several fixes to the FAT file system from Ronen Vainish. These
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fixes mostly involve the logic to extend directory clusters for
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the case of long file names but also include a few important
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general fixes (such as for storing 32 bit FAT values)
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- mkfatfs was writing the boot code to the wrong location. From
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Petteri Aimonen
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* Networking:
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- Fixed a compilation error when socket options are are disabled.
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Reported by Daniel O'Connor
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* C Library:
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- Corrected an error in sscanf. If %n occurs in the format statement
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after the input data stream has been fully parsed, the %n format
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specifier will not be handled. Reported by Lorenz Meier
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- strchr(str, '\0') should return a pointer to the end of the string,
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not NULL. From Petteri Aimonen
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* Build System:
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- Fix naming of NuttX target if EXEEXT is defined.
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* Applications:
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- OS test: Fix timing error in non-cancelable thread test.
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- NSH: Correct the test of the skip input parameter. Was limiting the
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range to <= count. From Ken Petit.
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