191 lines
7.1 KiB
Plaintext
191 lines
7.1 KiB
Plaintext
NuttX-6.24
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----------
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The 91st release of NuttX, Version 6.24, was made on December 20, 2012,
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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-6.24.tar.gz and
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apps-6.24.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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This release corresponds with SVN release number: r5447
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Note that all SVN information has been stripped from the tarballs. If you
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need the SVN configuration information, you should check out directly from
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SVN. Revision r5447 should equivalent to release 6.24 of NuttX 6.24:
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svn checkout -r5447 svn://svn.code.sf.net/p/nuttx/code/trunk nuttx-code
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Or (HTTP):
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svn checkout -r5447 http://svn.code.sf.net/p/nuttx/code/trunk nuttx-code
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Additional new features and extended functionality:
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* RTOS:
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- Implemented the POSIX pause() function (still has some compiance
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issues).
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- Tasking logic is extended to support the notion of address
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environments. An address environment is the key notion underlying
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"process" vs. tasks. If tasks are created with address environments
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(by binfmt), the OS will propagate that environment to child threads
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and will destroy the address environment when the "process" exists.
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- If support for the PATH variable is enabled, the OS start up logic
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will create an initial environment containing the default PATH
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setting (CONFIG_PATH_INITIAL). This initial PATH will then be
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inherited by all tasks.
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* Binfmt
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- The NuttX binary loaders have been updated to support the PATH
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environment variable. Now, if the PATH is properly defined, programs
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can be executed from mass storage using only the file name. This
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feature is added to support more standard behavior (eventually, NSH
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will support execution of programs in file systems by just entering
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the file name, perhaps in 6.25?).
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- The NXFLAT and ELF binary loaders have been extended to create
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address environments for any new tasks executed from the file system.
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This feature requires that the architecture support a memory management
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unit (MMU) and the address environment interfaces declared in
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include/nuttx/arch.h (currently, this is only supported by the z180).
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* Drivers: LCD driver for the Univision UG-2864AMBAG01 OLED
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* STM32: Support for STM32F100 high density chips contributed by Freddie
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Chopin.
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* STM32 Drivers: Added optional RS-485 direction bit control (from
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Freddie Chopin).
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* STM32 Boards:
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- Support for generic STM32F100RC board contributed by Freddie Chopin.
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- stm32f4discovery/nxlines: STM32F4Discovery support for the
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UG-2864AMBAG01 OLED.
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- stm32f4discovery/winbuild: A version of the NuttX OS test
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configured to build natively on Windows.
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- stm32f4discovery/elf: Now uses the PATH variable to find ELF
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executables.
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- configs/cloudctrl: Added for Darcy Gong's CloudController board
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* PIC32 Boards: Update the Mirtool configuration for Release 2 of the
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Mirtoo module.
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* Calypso: Add Calypso keypad driver. From Denis Cariki.
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* ZiLOG:
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- Add support for the z180 chip family and, specifically, for
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the P112 retro hardware (see http://p112.feedle.net/).
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- All ZiLOG configurations updated to use the current ZDS-II
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and/or SDCC toolchains.
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* Graphics:
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- Add a semaphore handshake so that operations on buffers from
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the NXMU client will be blocked until the NX server operates on the
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buffer data (from Petteri Aimonen).
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- nxtk_subwindowmove() and nxtk_getwindow(): Improvements to clipping
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logic from Petteri Aimonen.
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* C Library: lib/ sub-directory renamed libc/ (there is a new lib/ sub-
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directory that is used to hold all archives).
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* C++: Exception stubs from Petteri Aimonen.
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* Applications:
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- Add NSH hexdump command to dump the contents of a file (or character
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device) to the console (contributed by Petteri Aimonen).
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- Extend the NSH ifconfig command plus various DHCPC improvements
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(from Darcy Gong).
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* apps/examples:
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- ostest: Replace large tables with algorithmic prime number
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generation. This allows the roundrobin test to run on platforms
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with minimal SRAM (Freddie Chopin).
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- keypadtest: A new keypad test example contributed by Denis Carikli.
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- elf and nxflat: If CONFIG_BINFMT_EXEPATH is defined, these examples
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will now use a relative path to the program and expect the binfmt/
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logic to find the absolute path to the program using the PATH
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variable.
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* Build system:
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- New top-level Makefiles: Makefile.unix and Makefile.win (along with
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numerous changes to other make-related files). This adds basic
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support for building NuttX natively under Windows from a CMD.exe
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window (rather than in a POSIX-like environment). This build: (1)
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Uses all Windows style paths, (2) Uses primarily Windows batch
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commands from cmd.exe, with (3) a few extensions from GNUWin32.
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This capability should still be considered a work in progress
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because: (1) it has not been verfied on all targets and tools,
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and (2) still lacks some of the creature-comforts of the more
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mature environments (like a function configure.sh script and
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'make menuconfig' support).
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- Example Windows native builds for STM32F4Discovery, eZ80, z16f, z8,
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Z80, and Z180.
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- Several configurations have been converted to work the kconfig-
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frontends mconf configuration tool: stm32f4discovery/nxlines, and
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all eZ80, z16f, z8, Z80, and Z180 configurations.
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- Architectures now include a common Toolchain.defs file that can be
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used to manage toolchains in a more configurable way (most of this
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contributed by Mike Smith).
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* Build tools:
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- Renamed tools/winlink.sh to tools/copydir.sh.
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- Several new tools/scripts to support the Windows native build:
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tools/mkdeps.bat, tools/mkdeps.c, tools/link.bat, unlink.bat, and
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copydir.bat.
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- tools/incdir.sh and incdir.bat now support an -s option to generate
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system header file paths.
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- tools/b16.c: Fixed precision math conversion utility.
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Bugfixes (see the change log for details). Some of these are very important
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(marked *critical*):
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* RTOS: Fix some backward conditional compilation in the work queue
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logic (Freddie Chopin).
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* File System: Uninitialized variable caused assertions (from Lorenz
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Meier).
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* Drivers: Partial fix for STM32 OTGFS device drivers and fix for short,
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unaligned writes in the flash translation layer (drivers/mtd/ftl.c),
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both from Petteri Aimonen.
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* STM32 Drivers:
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- Qencoder driver and TIM3 driver fixes from Ryan Sundberg.
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- Fix timeout delay calculation in the STM32 OTG FS host driver.
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* LPC17xx Drivers: Resources not being properly released when I2C
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driver is un-initialized.
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* Graphics:
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- Fix logic when the mouse drags outside of the window; fix
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another "blocked message" handling case (both from Petteri Aimonen).
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- nxtk_filltrapwindow(): Correct an offset problem (also from Peterri
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Aimonen).
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- nxglib_splitline(): Correct the "fat flat line" bug.
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* C Library:
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- nrand() changes to prevent coefficients from becoming zero which
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would "lock up" the random number generate.
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- Add rounding functions to the math library (contributed by Petteri
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Aimonen).
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* Build system: Changes to MIN definitions in all limit.h header files
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to avoid integer overflows. For example from (-128) to (-127 - 1)
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(from Petteri Aimonen).
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* Applications: Modbus fixes from Freddie Chopin.
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As well as other, less critical bugs (see the ChangeLog for details)
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