247 lines
8.2 KiB
Groff
247 lines
8.2 KiB
Groff
NuttX-7.3
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---------
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The 103rd release of NuttX, Version 7.3, was made on June 25, 2014,
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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-7.3.tar.gz and
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apps-7.3.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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* Core OS:
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- Dynamic loader: Framework to support Pascal P-Code as a binary
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format that can be exec'ed from a file system.
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- Dynamic Loader: Extend the binfmt interface to handle error
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conditions where format-specific clean-up is needed in the event
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of error conditions. This is needed by the P-Code binfmt.
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* Networking
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- IOB: Add a generic I/O buffer chain logic. This logic uses small,
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pre-allocated buffers that can be chained together to support
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transfers of any size, using fewer resources and also without
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committing in advance to a TCP window size. There is now only
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one I/O type used in the networking and it is these I/O buffer
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chains.
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- TCP Write Buffering: TCP write buffering logic converted to use
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I/O buffer chains.
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- TCP Read-Ahead Buffering: TCP read-ahead buffering logic converted
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to use I/O buffer chains.
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- Includes logic to support throttling of read-ahead buffering if
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the read-ahead buffering is competing with write buffering for
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I/O buffers.
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- Raw Sockets: Add support for the AF_PACKET socket family. From
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Daniel Lazlo Sitzer.
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* Common Drivers:
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- W25 Serial FLASH driver extended by Mark Whitehorn to support the
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8Mbit W25Q80BV part.
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- Add support for Fujitsu MB85RS1MT RAMTRON part. From Charles Ash.
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- Enhancements to the generic timer interface to support capture mode
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from Bob Doiron.
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- Add an rxflowcontrol method to the serial interface to better
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support RX flow control. This involves common changes in addition to minor updates to all MCU-specific serial drivers (only fully implemented for the STM32). From Jussi Kivilinna.
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* Atmel SAM4C
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- Add support for the SAM4CM family. From Max Neklyudov.
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* Atmel SAM4E/4S Drivers:
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- RTT driver from Bob Doiron. Also added high resolution RTC
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emulation using the RTT for the sub-second counter.
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* Atmel SAM4E/4S Board Support:
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- The SAM4S Xplained Pro now uses the extended timer/counter
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features. From Bob Doiron.
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- Added a touchscreen and LCD driver for the SAM4E-EK board (the LCD,
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however, not yet fully functional).
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* Atmel SAMA5:
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- Optimized, high performance, assembly language memcpy(). This is
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the same optimized memcpy() function that Mike Smith brought in
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for the ARMv7-M with minor tweaks by David Sidrane to work with
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the ARMv7-A.
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- Basic support added for the SAMA5D4 family.
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* Atmel SAMA5 Drivers:
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- SAMA5D4: New drivers unique to the SAMA5D4: XDMAC, SAIC, and
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others.
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* Atmel SAMA5 Board Support:
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- SAMA5D4-MB: Initial board support for the SAMA5D4-MB/EK boards.
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* STMicro STM32
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- Add support for the STM32152 and STM32162 Medium+ density parts
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(plus miscellaneous other improvements to the original STM32151
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logic). From Jussi Kivilinna and Sami Pelkonen.
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* STMicro STM32 Boards:
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- Support for the Olimex STM32 H405 board contributed by Martin
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Lederhilger.
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* STMicro STM32 Drivers:
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- Implement the rxflowcontrol method to the serial interface to better
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support RX flow control. From Jussi Kivilinna.
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* NXP LPC17xx Drivers:
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- Added support for the RTC, ADC, DAC, Timers, PWM and MCPWM
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drivers. From Max (himax).
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* NXP LPC17xx Boards:
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- Support for the RTC, ADC, DAC, Timers, PWM and MCPWM integrated
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in the LPCXpresso LPC1768 board support. From Max (himax).
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* Library:
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- Add support for seek-able streams.
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* Configuration/Build System:
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- Restructured network directories, header files, and naming to
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better modularize the networking and to better integrate the
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networking with the rest of NuttX.
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* Applications:
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- prun: An NSH built-in application that can be used to run
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Pascal P-Code programs either programmatically or from the NSH
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command line.
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- netpkt: A "raw" socket test from Lazlo Sitzer.
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- hex2bin: A library and built-in task to convert from
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Intel HEX to binary format. It can write the binary data to a file or it can store the binary data to memory (to support, for example, a loader).
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Bugfixes. Only the most critical bugfixes are listed here (see the ChangeLog for the complete list of bugfixes and for additional, more detailed bugfix information):
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* Core OS:
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- Dynamic Loader: Fix an error in a symbol table search function.
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Noted by Pelle Windestam.
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- Dynamic Loader: Fix a critical error in exec(); argv was not
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being passed.
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- mq_notify: Test for a valid signal number was inverted; this
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function could not have been working correctly before??? From
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eero.nurkkala.
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- Fix typo in conditional compilation: CONFIG_CLOCK_MONOTONIC vs.
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CLOCK_MONOTONIC. From Manuel Stühn.
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* Graphics
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- Fix typos in several RGB conversion macros.
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* Networking:
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- Modify TCP timeout handling to provent situations where connections
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may not be freed. From Max Holtzberg.
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- Improved TCP fallback allocation logic from Max Holtzberg. Also,
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fallback mechanism is disabled when SO_LINGER is to prevent
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deadlocks.
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- Write Buffering: Add checks from buffer allocation failures. From
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Max/Himax.
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* Network Utilities:
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- webserver: httpd_fs_open() should return OK on success and ERROR on
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failure, not 1 and 0.
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* Common Drivers:
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- Make sure that all references to up_prioritize_irq() are
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conditioned on CONFIG_ARCH_IRQPRIO. Problem noted by Mike Smith.
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- CC3000: Correct SPI mode for CC3000 is CPOL=0 CHPA=1. From Jussi
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Kivilinna.
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- CC3000: Fix a race condition in thread start-up logic. From Jussi
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Kivilinna.
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- CC3000: Additional fixes including a compilation failure if POLL is
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enabled. From Jussi Kivilinna.
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* USB Drivers:
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- CDC/ACM and PL2303 device: Reset RX head to avoid resending last
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serial data when USB cable disconnected/re-connected. From
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Lizhuoyi.
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* TI Tiva/Stellaris Boards:
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- The Nucleo-F401RE has no on-board crystals and, hence, needs to run
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with the PLL input from the on-chip HSI clock.
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* STMicro STM32 Drivers:
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- Serial: Handle configuration for the case of 8-bit data with
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parity. From Freddie Chopin.
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* Atmel SAM3/4 Boards:
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- There was a cloned error in all SAM3/4 board configurations (and
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for a few other architectures as well). Button interrupts not
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being disabled after being detached. As a result, unexpected
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interrupts could be received after the button interrupt was
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detached.
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* Atmel SAMA5:
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- Fix some critical typos in the SAMA5D3 DMA definitions.
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* STMicro STM32 Drivers
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- I2C: Add an alternative I2C implementation for the STM32 F103 that
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works around errata in that specific part. From Patrizio Simona.
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- RTCC: Add retry logic to RTC initialization. It sometimes takes
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longer for the RTC to initialize, at least as noted on an F2 part.
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From Daniel Lazlo Sitzer.
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* NXP LPC17xx Drivers
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- GPDMA: Fix an error when DMA is started: The read-modify-write
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fails when the DMA is started. This is because the value read is
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not the same as the value set (on write it is the number of
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transfers to do; on read it is the number of transfers completed).
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From Lizhuoyi.
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* Library:
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- snprintf(): If the size passed to snprintf() is zero, then
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snprintf() must write nothing, but instead return the size of the
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buffer needed to hold the entire string. From Sami Pelkonen.
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* Configuration/Build System:
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- The alternate console device CONFIG_NSH_CONDEV must not be defined
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unconditionally. This causes errors when using Telnet sessions.
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This was solved by adding CONFIG_NSH_ALTCONDEV: CONFIG_NSH_ALTCONDEV enables or disables the feature then, if
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enabled, CONFIG_NSH_CONDEV provides the alternative console
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device name.
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- Many files: Convert all old-style GCC variadic macros to the C99
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form. Recent GCC changes tightens up that behavior and can cause
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some problems (at least for the IAR compiler for some reason).
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Noted by Bob Grimes.
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- tools/configure.sh: In-place SED edit messes up permissions on
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windows. From Hannes Delago.
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* Build Tools:
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- tools/mkfsdata.pl: Apparently, the trailing the 0x00 in http
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server files is seen as a bug in javascript and images. From
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Max/Himax.
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* Other Applications:
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- I2C Tool: Fix to show the updated register address on each
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fetch (vs. showing the same starting address each time). From
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Ryan VanSickle.
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- CLE was not returning the terminating newline character. But
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reported by Max kriegleder.
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