255 lines
9.3 KiB
Plaintext
255 lines
9.3 KiB
Plaintext
NuttX-6.28
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----------
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The 95th release of NuttX, Version 6.28, was made on June 14, 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-6.28.tar.gz and
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apps-6.28.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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* File Systems:
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- SMART FLASH file system (contributed by Add Ken Pettit).
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* MTD (FLASH) Drivers:
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- Add support of MTD partitions via a new MTD driver that manages a
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set of MTD devices, each managing a subset of the FLASH region
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managed by the parent MTD driver.
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- Extended the MTD interface to provide an (optional) method to
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perform byte oriented writes if supported by the FLASH part.
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- M25Px driver re-architected to use the byte write capability (when
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possible) and to use 4KB sectors for the erase block size when the
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part supports it (from Ken Pettit).
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* LCD Drivers:
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- New interface definitions to support audio devices (from Ken Pettit)
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and alphanumeric, segment LCDs.
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* Wireless Drivers:
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- Added new driver for the wireless nRF24L01+ transceiver (from
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Laurent Latil).
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* Calypso:
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- Added support for the Pirelli DP-L10 phone (from Craig Comstock via
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Alan Alan Carvalho de Assis)
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* STM32:
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- Added an option to conditionally disable the "wfi" sleep mode. This
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is needed with certain JTAG debuggers to prevent the debug session
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from being disconnected (from Ken Pettit).
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- Added support for the STM32L (STM32L15X/STM32L16x) family.
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- Added STM32F103C4 and F103C8 chip support (from Laurent Latil).
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- Added a new interface function, stm32_dmacapable() that can be used
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to determine if DMA is possible from the specified memory address
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(from Petteri Aimonen)
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* STM32 Drivers:
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- If CONFIG_STM32_DMACAPABLE is defined, the STM32 SPI driver now uses
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stm32_dmacapable() to determine if it is possible to perform DMA
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from the specified address. This change is important for the STM32
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F4 which may have SPI data buffers allocated on the stack in CCM
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memory which cannot support the DMA (from Petteri Aimonen).
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* STM32 Boards:
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- Support added for the MikroElektronika Mikromedia for STM32F4
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development board (from Ken Pettit) with the MIO283QT2 LCD and
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touchscreen. Several graphics configurations are included.
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- The HY-mini STM32v board now uses the common SSD1289 driver
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and supported the card detect interrupt. Several new
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configurations also added and some removed (from Laurent Latil).
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- Support added for the R65105-based LCD that comes with some
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HY-Mini STM32v boards (from Christian Faure).
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- Added basic support for the STM32L-Discovery board. Drivers
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for the on-board segment LCD are included.
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- Added support for the STM32 Tiny development board based on the
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STM32 F103C8T6 MCU. This includes support for the nRF24L01+
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wireless on the board (from Laurent Latil).
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* Stellaris LM3S/LM4F:
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- Support added for a TI/Stellaris internal FLASH MTD driver (from Max
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Holtzberg).
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* Stellaris LM4F Boards:
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- The LM3S6965-EK now has configurations for the UDP discovery tool and
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for the TCP echo server (both from Max Holtzberg)
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* Atmel ATSAM3/4:
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- Reorganized, renamed, and updated directory structure to better
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support additional members of the SAM3/4 family.
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- Added support for both the ATSAM4S and ATSAM4L families. The
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ATSAM4S is similar to the ATSAM3U, but the ATSAM4L is quite a
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different beast, really much more akin to the AVR32s SoCs but
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with a Cortex-M4.
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* Atmel ATSAM3/4 Boards:
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- Added support for the Atmel SAM4L Xplained Pro development board.
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This board features the ATSAM4LC4C MCU (Cortex-M4 with 256KB FLASH +
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32KB SRAM).
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- Added support for the Atmel SAM4S Xplained development board. This
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board features the ATSAM4S16C MCU (Cortex-M4 with 1MB FLASH + 128KB
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SRAM).
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* PIC32MX Boards:
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- Added support for the 1602 segment LCD on-board the Sure PIC32MX
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board. This board will now also support a USB NuttX console and
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the USB monitor test program.
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* Build System:
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- Clean-up of almost all .gitignore files: Made scope of ignore to be
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only the current directory; Ignore .dSYM files in directories where
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.exe's may be built. Also, in Makefiles, clean .dSYM files in
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directories where an .exe may be built.
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- Standardize and consolidated all build-as-an-NSH-application
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configuration settings. Now only CONFIG_NSH_BUILTIN_APPS is
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sufficient to build an application, test, or or example as an NSH
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builtin application.
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- Added support for a generic ARM, ARMv6-M and ARMv7-M Windows EABI
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toolchains.
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* Libraries:
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- Added encoder/decoder logic to marshal and serialize special segment
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LCD (SLCD) commands intermixed with normal ASCII data. This is the
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similar to the encoding/decoding logic that is used to marshal
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special commands from a keyboard.
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- Add dprintf() and vdprintf() (the latter from Andrew Tridgell).
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- Add an application that may be built as an NSH builtin command that
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will erase FLASH using a flash_eraseall NSH command (from Ken Pettit).
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* Applications:
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- Added an MTD partition test/examples. Currently used with (1) the a
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simulation configuration to test MTD partitions on a RAM emulation
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of FLASH and (2) with the Mikroe STM32F4 configuration.
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- Added a test/example to verify alphanumeric, segment LCDs.
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- Added a simple single threaded, poll based TCP echo server based
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on W. Richard Stevens UNIX Network Programming Book (from Max
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Holtzberg).
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- Added several tests of the SMART block driver and file system (from
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Ken Pettit).
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- Added a runtime configuration for the UDP discover utility (from
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Max Holtzberg).
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- Added an example application to demo the nRF24L01 driver (from
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Laurent Latil).
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- New and modified NSH commands:
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Added a -h option to the df command to show the volume information
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in human readable form (from Ken Petit).
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Add a new mksmartfs command (from Ken Petit).
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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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* Audio System:
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- A complete audio subsystem include CODECs, higher level management,
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interface definitions, and audio drivers was contributed by Ken
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Pettit. This work has not been completely verified as of this
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release and so is categorized as a work-in-progress. At present,
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progress is blocked due to issues interfacing with the VS1053
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audio DAC on the Mikroe STM32F4 board.
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* kconfig-fronted Configuration:
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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 43% 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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- Modify assertion in the priority inheritance logic that is reported
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to cause false alarm assertions.
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* Kernel Build:
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- Typo in syscall proxying logic corrected by Ken Pettit.
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* Networking:
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- Poll setup/teardown logic should ignore invalid (i.e., negative)
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file descriptors (from Max Holtzberg).
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- When readahead data is available, the network poll() logic should
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set POLLIN (or POLLRDNORM), not POLLOUT (from Max Holtzberg).
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* LCD Drivers:
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- Correct power controls in the MIO283QT2 LCD driver.
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* USB Device Controller Drivers:
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- Change the default IN request buffer size from 64 to 96. This will
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avoid requests of exactly MAXPACKET size and, hence, avoid so many
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NULL packets. Also, fix the OUT request buffers size to exactly the
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max packet size. It really cannot be any other size.
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* STM32 Drivers:
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- Correct some bad STM32 F1 DMA definitions that crept into the system
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a few months ago a broke STM32 F1 DMA (from Laurent Latil)
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- Fixed an error in NULL packet handling in the STM32 F1 USB device
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controller driver: If the NULL-packet needed flag ever got set,
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then it was not being cleared and infinite NULL packets resulted.
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This only affects the CDC/ACM class and was the cause of the
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failures using the USB CDC/ACM device as a NuttX console. With this
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change the USB works well as an alternative NuttX console device for
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the STM32 F1 family.
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- Correct some bad condition compilation in the RCC logic (CONFIG_
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missing from setting names). This affects some STM32 FLASH pre-
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fetch settings (from Lorenz Meier).
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- Change for hardware flow control support for STM32. The change also
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fixes incorrect operation of USART2 and UART5 in current master
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(from Lorenz Meier and Mike Smith).
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- Fixed a backward conditional in USB OTG FS host controller driver
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that prevented detection of disconnection events (from Scott).
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* LPC17xx Drivers:
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- I2C interrupt control. Also correction for a single byte read
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timeout error (from M. Kannan).
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* Freescale Kinetis:
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- Freedom KL25Z pin multiplexing and LED control corrections (from
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Alan Carvalho de Assis)
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* PIC32MX:
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- Fix NULL packet handling in the PIC32 USB device driver. Without
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this fix the CDC/ACM driver cannot be used reliably with the PIC32
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USB. With this change the USB works well as an alternative NuttX
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console device.
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* Graphics:
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- Default priorities for NxWidget and NxWM threads should be 100,
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not 50, to be consistent with other default priorities.
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* Applications:
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- Remove the CONFIG_EXAMPLES_NXTEXT_NOGETRUN option from the NXTEXT
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example. The test logic was bad for the case where this options is
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not selected. Also, completed the empty Kconfig file.
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- C++ name mangling was occurring when this example is built as an NSH
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built-in application causing the entry to be undefined when called
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from C code.
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- Add some missing NSH library configuration values (from Lorenz
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Meier).
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