RIOT-2014.01 - Release Notes
RIOT is a real-time multi-threading operating system that supports a range of devices that are typically found in the Internet of Things: from 16-bit microcontrollers to light-weight 32-bit processors.
RIOT is based on the following design principles: energy-efficiency, real-time capabilities, small memory footprint, modularity, and uniform API access, independent of the underlying hardware (this API offers partial POSIX compliance).
New features
Core
- msg_receive() with timeout
- LPM support for MSP430 based platforms
- introduced a version string
Supported platforms
Additional support for the following boards:
- TelosB
- mbed LPC1768
Sensor drivers
- drivers for the LM75A Digital temperature sensor and thermal watchdog
- SRF02 and SRF08 ultrasonic range finders
Native port
- implemented UART via I/O redirection or TCP and UNIX socket
System libraries
- Mersenne twister pseudorandom number generator
- crypto libraries
- 3des
- aes
- rc5
- skipjack
- twofish
- BSD-like package system for easy integration of external libraries
Network stack
- port of CCN lite
- POSIX socket wrapper
- integration of libcoap
- integration of OpenWSN
Further Changes
- boards and projects repositories have been integrated and are now part of the RIOT repository itself
- full refactoring of the network stack and introducing a substructure according to the modules’ functionalities
- cleaned up Makefile system and simplified binary directory
- more documentation
- various bug fixes and cleanups
Fixed Issues from the last release
##45: bit field order in the fcf may be wrong The CC2420 FIFO expects the IEEE802.15.4 FCF field in reversed bit order. With this release the byte order is now handled by the net_if module and all device specific handling is done by the driver. ##82: Setting STATUS_REPLY_BLOCKED thread to STATUS_PENDING though it is not handled yet Pull Request #569 fixed this bug by checking for STATUS_REPLY_BLOCKED in msg_receive(). ##455: sha256 is broken on MSP430 The problem was caused
Known Issues
##21: Deal with stdin in bordermultiplex.c Not all supported platforms provide a stdin in the current release. However, the implementation of the 6LoWPAN border router won’t work without stdin. ##426: Interrupt handling on MSP430 is buggy UART and timer handling is still unstable on MSP430 based platforms. ##495: native not float safe When the FPU is used when an asynchronous context switch occurs, either the stack gets corrupted or a floating point exception occurs. ##498: native is segfaulting at startup In some cases (about 5-10%) a RIOT native process crashes with a SEGFAULT at startup. ##499: native is segfaulting on heavy network usage Sending more than 100 packets per second causes a SEGFAULT in RIOT native. ##505: native on FreeBSD is broken Due to different parameter handling in FreeBSD, native is currently not working there.
For all issues and open pull requests please check the RIOT issue tracker: https://github.com/RIOT-OS/RIOT/issues