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166 lines
5.2 KiB
Plaintext
166 lines
5.2 KiB
Plaintext
RIOT-2014.01 - Release Notes
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============================
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RIOT is a real-time multi-threading operating system that supports a range of
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devices that are typically found in the Internet of Things: from 16-bit
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microcontrollers to light-weight 32-bit processors.
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RIOT is based on the following design principles: energy-efficiency, real-time
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capabilities, small memory footprint, modularity, and uniform API access,
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independent of the underlying hardware (this API offers partial POSIX
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compliance).
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New features
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============
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Core
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----
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+ msg_receive() with timeout
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+ LPM support for MSP430 based platforms
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+ introduced a version string
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Supported platforms
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-------------------
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Additional support for the following boards:
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+ TelosB
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+ mbed LPC1768
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Sensor drivers
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---------------
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+ drivers for the LM75A Digital temperature sensor and thermal watchdog
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+ SRF02 and SRF08 ultrasonic range finders
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Native port
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-----------
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+ implemented UART via I/O redirection or TCP and UNIX socket
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System libraries
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----------------
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+ Mersenne twister pseudorandom number generator
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+ crypto libraries
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+ 3des
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+ aes
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+ rc5
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+ skipjack
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+ twofish
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+ BSD-like package system for easy integration of external libraries
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Network stack
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-------------
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+ port of CCN lite
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+ POSIX socket wrapper
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+ integration of libcoap
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+ integration of OpenWSN
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Further Changes
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===============
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* boards and projects repositories have been integrated and are now part of
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the RIOT repository itself
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* full refactoring of the network stack and introducing a substructure
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according to the modules' functionalities
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* cleaned up Makefile system and simplified binary directory
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* more documentation
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* various bug fixes and cleanups
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Fixed Issues from the last release
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==================================
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#83: Wrong byte order in sixlowpan
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To our best knowledge all occurrences of wrong byte order within the 6LoWPAN
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network stack are fixed now.
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#132: segfault in vtimer update shortterm
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The vtimer has been carefully evaluated and all known issues concerning this
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module are fixed.
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Known Issues
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============
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#21: Deal with stdin in bordermultiplex.c
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Not all supported platforms provide a stdin in the current release.
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However, the implementation of the 6LoWPAN border router won't work
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without stdin.
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#45: bit field order in the fcf may be wrong
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The CC2420 FIFO expects the IEEE802.15.4 FCF field in reversed bit order.
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This might break the implementation for other, upcoming radio
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transceivers.
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#82: Setting STATUS_REPLY_BLOCKED thread to STATUS_PENDING though it is not
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handled yet
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In some rare cases the status of a thread might falsely change to
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STATUS_PENDING instead of STATUS_REPLY_BLOCKED.
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#426: Interrupt handling on MSP430 is buggy
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UART and timer handling is currently unstable on MSP430 based platforms
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#455: sha256 is broken on MSP430
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For unknown reasons sha256 calculates wrong results on MSP430 based platforms.
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#495: native not float safe
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When the FPU is used when an asynchronous context switch occurs, either the
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stack gets corrupted or a floating point exception occurs.
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#498: native is segfaulting at startup
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In some cases (about 5-10%) a RIOT native process crashes with a SEGFAULT
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at startup.
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#499: native is segfaulting on heavy network usage
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Sending more than 100 packets per second causes a SEGFAULT in RIOT native.
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#505: native on FreeBSD is broken
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Due to different parameter handling in FreeBSD, native is currently not
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working there.
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For all issues and open pull requests please check the RIOT issue tracker:
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https://github.com/RIOT-OS/RIOT/issues
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Release 2013.08
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===============
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Kernel
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------
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- Microkernel with a powerful messaging system
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- Multi-Threading with low overhead
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- an energy-efficient, real-time capable scheduler
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- small memory footprint
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Userspace
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---------
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- 6LoWPAN according to RFC 4944, RFC 6282, and RFC 6775
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- TCP and UDP
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- RPL according to RFC 6550 and RFC 6719
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- High resolution and long-term timers
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- POSIX IO and BSD socket API
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- Bloom filter
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- SHA256
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Hardware Support
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----------------
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- various ARM and MSP430 MCUs
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* ARM7 NXP LPC2387
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* TI MSP430F1612
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* TI CC430F6137
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* ARM7 Freescale MC13224v (preliminary)
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* ARM Cortex-M4 STM32f407vgt6 (preliminary)
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* ARM Cortex-M3 STM32f103rey6 (preliminary)
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- radio drivers
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* TI CC1100 and CC1101
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* TI CC2420
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* Atmel AT86RF231
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- sensor drivers
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* Sensirion SHT11
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* Linear Technology LT4150
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More information
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================
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http://www.riot-os.org
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Mailing lists
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-------------
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* RIOT OS kernel developers list
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* devel@riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel)
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* RIOT OS users list
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* users@riot-os.org (http://lists.riot-os.org/mailman/listinfo/users)
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* RIOT commits
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* commits@riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits)
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* Github notifications
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* notifications@riot-os.org (http://lists.riot-os.org/mailman/listinfo/notifications)
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License
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=======
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* All sources and binaries that have been developed at Freie Universität Berlin are
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licensed under the GNU Lesser General Public License version 2 as published by the
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Free Software Foundation.
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* Some external sources, especially files developed by SICS are published under
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a separate license.
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All code files contain licensing information.
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