RIOT-2014.12 - 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 8-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 ---- + introduced new thread_yield() and renamed the old implementation to thread_yield_higher() Supported platforms ------------------- Additional support for the following boards: + Arduino Mega 2560 (first-time support of an 8-bit platform) + HikoB Fox + Atmel samr21-Xplained Pro + OpenMote + cc2538 Developer Kit + Spark-Core + f4vi1 + Airfy-Beacon + STMF0Discovery Board + STMF3Discovery Board + STMF4Discovery Board + nrf51822 Development Kit + yunjia-nrf51822 + MSB-IoT + native on ARM platforms Drivers ------- + various peripheral drivers (ADC, UART, timer, SPI, I�C, RTC, RTT, DAC, PWM...) + MQ-3 alcohol sensor + ISL29020 light sensor + LPS331AP pressure sensor + LSM303DLHC accelerometer + L3G4200D gyroscope + servo motor + TI HDC 1000 low power humidity and temperature digital sensor + SRF02/SRF08 ultrasonic range sensors + PIR motion sensor + RGB LED Network Stack --------------- + AODVv2 + RPL non-storing mode + OF manager for RPL + Source Routing Header support + introduced netapi + introduced netdev, a general interface for network device drivers + introduced global packet buffer System libraries ---------------- + CBOR + UBJSON + color module for PWM Packages -------- + libfixmath Other ----- + C++ support for most platforms + PCAP based wireless sniffer Changes ======= Core ---- * PIDs begin with 1 * mamximum 16 priority levels for every platform * fixed sched_switch() * simplified mutex signatures * minimized size of TCB * allow hwtimer to run with more than 1MHz * imported ringbuffer from sys Supported platforms ------------------- * improved iot-lab_M3 support * major improvements on the mbed LPC1768 * improved at86rf231 radio driver * fixed hwtimer for MSP430 * added support for timer B for MSP430 * fixed thread_yield() for MSP430 * several fixes for the cc2420 * improved interrupt handling on ARM * adjusted stack sizes for Cortex platforms Network Stack --------------- * refactored CCN-lite * refactored RPL * renamed destiny to transport_layer and socket_base * several fixes for TCP * split UDP and TCP System libraries ---------------- - removed hashtable implementation Packages -------- * updated and simplified OpenWSN Other ----- * Improved and cleaned up build system * various new helper targets (like debug, distclean, reset, objdump...) * use newlib's nano specs if available * various new features and added Python 3 compatibility for pyterm * major reduction of warnings in doxygen and improved html layout Fixed Issues from the last release ================================== #426: Interrupt handling on MSP430 is buggy Several fixes by @rousselk #1798: core: first thread on runqueue is scheduled twice Was fixed along with the thread_yield() refactoring #1127: Random build fails on OSX native is building stable also on OSX now Known Issues ============ network related 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. #861: neighbor discovery for 6LoWPAN not working Duplicate address detection according to RFC 6775 is also missing. #1577: ccn-lite: populate does not work with disabled cache If cache is set to zero, the chunks cannot be loaded and therefore also not get populated. #1870: IPv6 neighbor advertisements are malformed According to Wireshark, ICMPv6 neighbor advertisements are malformed (wrong checksum or other reasons). native related issues --------------------- #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. #499: native is segfaulting on heavy network usage Sending more than 100 packets per second causes a SEGFAULT in RIOT native. #534: native debugging on osx fails Using valgrind or gdb with a nativenet target in OSX leads to "the network" being stuck (gdb) or the whole process being stuck (valgrind). #715: test_hwtimer_wait fails on native The problem appears to be lost signals and depends on the CPU speed. #787: reboot not working with open file descriptors on native If for example a tap device is in use, the reboot command fails. #862: sometimes the tap bridge does not work in native Sometimes (rather suddenly) packages are not received by a TAP and won't be received even if I reconfigure the bridge. other platform related issues ----------------------------- #1232: x86 doesn't build on OS X with clang Current version of the x86 port doesn't build for OS X with clang. #1442: setting channel is not persistent cc2420 After changing the channel via a shell command, the channel reverts back to an arbitrary value. However, this might be only a shell problem. #1753: vtimer_msg test crashes after ~49'20" dependent on the platform, vtimer stops working after some time. #1891: printf formatting does not work properly on some Cortex platforms for 64 bit numbers This problem happens mostly for the Newlib nano, which does not support 64 bit integer printing, but sometimes happens also with other toolchains. #1964 and #1955: eventual problems with IoT-LAB M3 nodes in the testbed The shell is sometimes not properly working after a reboot and the PDR is sometimes worse than expected. #2143: tests.core doesn't compile for all platforms For some missing GCC compiler builtins, the unittests do not compile for MSP430 platforms. #2228: samd21 stack sizes are too small The application examples/default for example will crash when issuing the txtsnd command other issues: -------------- #1449: a removed vtimer might still get called back by hwtimer The timer callback might still fire even after vtimer_remove() was called. #2175: valgrind registeres "Invalid write of size 4" in unittests for ubjson According to valgrind the stack gets corrupted in UBJSON. For all issues and open pull requests please check the RIOT issue tracker: https://github.com/RIOT-OS/RIOT/issues Special Thanks -------------------- We like to give our special thanks to all the companies that provided us with their hardware for porting and testing, namely the people from (in alphabetical order): airfy, Atmel, ELL-i, Intel, IoT-Lab, mbed, Phytec, and Udoo More information ================ http://www.riot-os.org Mailing lists ------------- * RIOT OS kernel developers list * devel@riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel) * RIOT OS users list * users@riot-os.org (http://lists.riot-os.org/mailman/listinfo/users) * RIOT commits * commits@riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits) * Github notifications * notifications@riot-os.org (http://lists.riot-os.org/mailman/listinfo/notifications) License ======= * All sources and binaries that have been developed at Freie Universit�t Berlin and most of the other code are licensed under the GNU Lesser General Public License version 2 as published by the Free Software Foundation. * Some external sources, especially files developed by SICS are published under a separate license. All code files contain licensing information. RIOT-2014.05 - 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 ---- + introduced explicit core/cpu interface through a set of header files + added reboot and panic functions + added a node name to the sysconfig struct + added the ability to send a message to the current thread's message queue Supported platforms ------------------- Additional support for the following boards: + Arduino Due + UDOO board + X86 via qemu + Zolertia Z1 Network stack ------------- + added net_if as abstraction layer between transceiver module and L3 protocol + added support for auto initializing of the 6LoWPAN network stack + added support for RFC5444 via oonf_api (from OLSR.org) + added a Wireshark dissector for nativenet packets + introduced low-level radio driver interface + added a default transceiver for all boards + common IEEE 802.15.4 radio driver API definition + added standard way to query CCA (Clear Channel Assessment) status + enabled nonces in interests for CCN-lite (Content Centric Networking) + added a route shell command System libraries ---------------- + added quad-precision math library (quad_math) Automated Testing ----------------- + added Travis CI based build tests + added support for a Jenkins CI server + added a unittest framework (based on embunit) + added unittests for most core functions POSIX compliance ---------------- + pthread support including + dynamic memory pool and cleanup handlers + mutexes + condition variable implementation + reader/writer lock + pthread_barrier_* functions Native ------ + added a valgrind and cachegrind targets + added profiling support Changes ======= Core ---- * initialize hwtimer automatically * optimized thread status field usage * moved oneway_malloc to sys * prefixed API functions correctly Network stack ------------- * major refactoring and decoupling * refactor use of vtimer * fixed forwarding * added IoT-LAB M3 Open Node support and dropped TelosB support temporarily for OpenWSN * moved ETX beaconing to a module on its own * various byte order and other bug fixes Drivers ------- * added low-level driver interface for unified CPU peripheral abstraction for GPIO, ADC, PWM, Timer and UART * handle race conditions preventing timers to be set correctly on MSP430 MCUs * several CC2420 fixes System libraries ---------------- * auto_init is used by default * changed function prototype for shell handlers Other ----- * cleaned up Makefile system and simplified binary directory * improved documentation for core and sys * build system uses PKG dependency * build system sets include paths automatically * black and white lists for applications and tests * add stacksize checker for DEBUG macro * styling corrections * fixed license boiler plates * set lpc2k_pgm return value correctly * 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 In some rare cases the status of a thread might falsely change to STATUS_PENDING instead of STATUS_REPLY_BLOCKED. #455: sha256 is broken on MSP430 Fixed. #498: native is segfaulting at startup Fixed by several PRs (#501, #583, and #588). #505: native on FreeBSD is broken Fixed by PR #1022. Known Issues ============ network related 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. #861: neighbor discovery for 6LoWPAN not working Duplicate address detection according to RFC 6775 is also missing. native related issues --------------------- #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. #499: native is segfaulting on heavy network usage Sending more than 100 packets per second causes a SEGFAULT in RIOT native. #534: native debugging on osx fails Using valgrind or gdb with a nativenet target in OSX leads to "the network" being stuck (gdb) or the whole process being stuck (valgrind). #715: test_hwtimer_wait fails on native The problem appears to be lost signals and depends on the CPU speed. #787: reboot not working with open file descriptors on native If for example a tap device is in use, the reboot command fails. #862: sometimes the tap bridge does not work in native Sometimes (rather suddenly) packages are not received by a TAP and won't be received even if I reconfigure the bridge. #1127: Random build fails on OSX Building for native on OSX often fails - Workaround: build using -B flag, e.g.: make -B clean all other platform related issues ----------------------------- #426: Interrupt handling on MSP430 is buggy UART and timer handling is currently unstable on MSP430 based platforms #1232: x86 doesn't build on OS X with clang Current version of the x86 port doesn't build for OS X with clang. For all issues and open pull requests please check the RIOT issue tracker: https://github.com/RIOT-OS/RIOT/issues More information ================ http://www.riot-os.org Mailing lists ------------- * RIOT OS kernel developers list * devel@riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel) * RIOT OS users list * users@riot-os.org (http://lists.riot-os.org/mailman/listinfo/users) * RIOT commits * commits@riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits) * Github notifications * notifications@riot-os.org (http://lists.riot-os.org/mailman/listinfo/notifications) License ======= * All sources and binaries that have been developed at Freie Universit�t Berlin and most of the other code are licensed under the GNU Lesser General Public License version 2 as published by the Free Software Foundation. * Some external sources, especially files developed by SICS are published under a separate license. All code files contain licensing information. 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 Release 2013.08 =============== Kernel ------ - Microkernel with a powerful messaging system - Multi-Threading with low overhead - an energy-efficient, real-time capable scheduler - small memory footprint Userspace --------- - 6LoWPAN according to RFC 4944, RFC 6282, and RFC 6775 - TCP and UDP - RPL according to RFC 6550 and RFC 6719 - High resolution and long-term timers - POSIX IO and BSD socket API - Bloom filter - SHA256 Hardware Support ---------------- - various ARM and MSP430 MCUs * ARM7 NXP LPC2387 * TI MSP430F1612 * TI CC430F6137 * ARM7 Freescale MC13224v (preliminary) * ARM Cortex-M4 STM32f407vgt6 (preliminary) * ARM Cortex-M3 STM32f103rey6 (preliminary) - radio drivers * TI CC1100 and CC1101 * TI CC2420 * Atmel AT86RF231 - sensor drivers * Sensirion SHT11 * Linear Technology LT4150 More information ================ http://www.riot-os.org Mailing lists ------------- * RIOT OS kernel developers list * devel@riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel) * RIOT OS users list * users@riot-os.org (http://lists.riot-os.org/mailman/listinfo/users) * RIOT commits * commits@riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits) * Github notifications * notifications@riot-os.org (http://lists.riot-os.org/mailman/listinfo/notifications) License ======= * All sources and binaries that have been developed at Freie Universit�t Berlin are licensed under the GNU Lesser General Public License version 2 as published by the Free Software Foundation. * Some external sources, especially files developed by SICS are published under a separate license. All code files contain licensing information. Release 2013.08 =============== Kernel ------ - Microkernel with a powerful messaging system - Multi-Threading with low overhead - an energy-efficient, real-time capable scheduler - small memory footprint Userspace --------- - 6LoWPAN according to RFC 4944, RFC 6282, and RFC 6775 - TCP and UDP - RPL according to RFC 6550 and RFC 6719 - High resolution and long-term timers - POSIX IO and BSD socket API - Bloom filter - SHA256 Hardware Support ---------------- - various ARM and MSP430 MCUs * ARM7 NXP LPC2387 * TI MSP430F1612 * TI CC430F6137 * ARM7 Freescale MC13224v (preliminary) * ARM Cortex-M4 STM32f407vgt6 (preliminary) * ARM Cortex-M3 STM32f103rey6 (preliminary) - radio drivers * TI CC1100 and CC1101 * TI CC2420 * Atmel AT86RF231 - sensor drivers * Sensirion SHT11 * Linear Technology LT4150 More information ================ http://www.riot-os.org Mailing lists ------------- * RIOT OS kernel developers list * devel@riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel) * RIOT OS users list * users@riot-os.org (http://lists.riot-os.org/mailman/listinfo/users) * RIOT commits * commits@riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits) * Github notifications * notifications@riot-os.org (http://lists.riot-os.org/mailman/listinfo/notifications) License ======= * All sources and binaries that have been developed at Freie Universit�t Berlin are licensed under the GNU Lesser General Public License version 2 as published by the Free Software Foundation. * Some external sources, especially files developed by SICS are published under a separate license. All code files contain licensing information.