RIOT-2016.10 - 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: 8-bit microcontrollers, 16-bit microcontrollers and 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). RIOT is developed by an international open source community which is independent of specific vendors (e.g. similarly to the Linux community) and is licensed with a non-viral copyleft license (LGPLv2.1), which allows indirect business models around the free open-source software platform provided by RIOT. About this release: =================== This release provides a lot of new features as well as it fixes several major bugs. Among these new features are the new simplified network socket API called sock, the GNRC specific CoAP implementation gcoap and several new packages: TinyDTLS, the Aversive++ microcontroller library for robotics, the u8g2 graphic library, and nanocoap. Using the new sock API an implementation of the Simple Time Network Protocol (SNTP) was also introduced, allowing for time synchronization between nodes. New platforms include the Arduino Uno, the Arduino Duemilanove, the Arduino Zero, SODAQ Autonomo, and the Zolertia remote (rev. B). The most significant bug fix was done in native which led to a significantly more robust handling of ISRs and now allows for at least 1,000 native instances running stably on one machine. About 263 pull requests with about 398 commits have been merged since the last release and about 42 issues have been solved. 37 people contributed with code in 100 days. 1006 files have been touched with 166500 insertions and 26926 deletions. Notations used below: ===================== + means new feature/item * means modified feature/item - means removed feature/item New features and changes ======================== General ------- * Verbose behavior for assert() macro Core ---- + MPU support for Cortex-M API changes ----------- + Socket-like sock API (replacing conn) * netdev2: Add Testmodes and CCA modes * IEEE 802.15.4: clean-up Intra-PAN behavior * IEEE 802.15.4: centralize default values * gnrc_pktbuf: allow for 0-sized snips + gnrc_netapi: mbox and arbitrary callback support System libraries ---------------- No new features or changes Networking ---------- + Provide sock-port for GNRC + gcoap: a GNRC-based CoAP implementation + Simple Network Time Protocol (RFC 5905, section 14) + Priority Queue for packet snips + IPv4 header definitions Packages -------- + nanocoap: CoAP header parser/builder + TinyDTLS: DTLS library + tiny-asn1: asn.1/der decoder + Aversive++ microcontroller programming library + u8g2 graphic library Platforms --------- + Support for stm32f2xx MCU family + Low power modes for samd21 CPUs + More Arduino-based platforms: + Arduino Uno + Arduino Duemilanove + Arduino Zero + More boards of ST's Nucleo platforms: + ST Nucleo F030 board support + ST Nucleo F070 board support + ST Nucleo F446 board support + SODAQ Automono + Zolertia remote rev. B Drivers ------- + W5100 Ethernet device + Atmel IO1 Xplained extension + LPD8808 LED strips * at86rf2xx: provide capability to access the RND_VALUE random value register Build System ------------ + static-tests build target for easy local execution of CI's static tests Other ----- + Provide Arduino API to Nucleo boards + Packer configuration file to build vagrant boxes + CC2650STK Debugger Support + ethos: add Ethos over TCP support Fixed Issues from the last release ================================== #534: native debugging on osx fails #2071: native: *long* overdue fixes #3341: netdev2_tap crashes when hammered #5007: gnrc icmpv6: Ping reply goes out the wrong interface #5432: native: valgrind fails Known Issues ============ Networking related issues ------------------------- #3075: nhdp: unnecessary microsecond precision: NHDP works with timer values of microsecond precision which is not required. Changing to lower precision would save some memory. #4048: potential racey memory leak: According to the packet buffer stats, flood-pinging a multicast destination may lead to a memory leak due to a race condition. However, it seems to be a rare case and a completely filled up packet buffer was not observed. #4388: POSIX sockets: open socket is bound to a specific thread: This was an inherit problem of the conn API under GNRC. Since the POSIX sockets are still based on conn for this release, this issue persists #4527: gnrc_ipv6: Multicast is not forwarded if routing node listens to the address (might still be fixable for release, see #5729, #5230: gnrc ipv6: multicast packets are not dispatched to the upper layers) #5016: gnrc_rpl: Rejoining RPL instance as root after reboot messes up routing #5055: cpuid: multiple radios will get same EUI-64 Nodes with multiple interfaces might get the same EUI-64 for them since they are generated from the same CPU ID. #5656: Possible Weakness with locking in the GNRC network stack: For some operations mutexes to the network interfaces need to get unlocked in the current implementation to not get deadlocked. Recursive mutexes as provided in #5731 might help to solve this problem. #5748: gnrc: nodes crashing with too small packet buffer: A packet buffer of size ~512 B might lead to crashes. The issue describes this for several hundret nodes, but agressive flooding with just two nodes was also shown to lead to this problem. #5858: gnrc: 6lo: potential problem with reassembly of fragments: If one frame gets lost the reassembly state machine might get out of sync ### NDP is not working properly #4499: handle of l2src_len in gnrc_ndp_rtr_sol_handle: Reception of a router solicitation might lead to invalid zero-length link-layer addresses in neighbor cache. #5005: ndp: router advertisement sent with global address: Under some circumstances a router might send RAs with GUAs. While they are ignored on receive (as RFC 4861 specifies), RAs should have link-local addresses and not even be send out this way. #5122: NDP: global unicast address on non-6LBR nodes disappears after a while: Several issues (also see #5760) lead to a global unicast address effectively being banned from the network (disappears from neighbor cache, is not added again) #5467: ipv6 address vanishes when ARO (wrongly) indicates DUP caused by outdated ncache at router #5539: Border Router: packet not forwarded from ethos to interface 6 #5790: ND: Lost of Global IPV6 on node after sending lot of UDP frame from BR Timer related issues -------------------- #4841: xtimer: timer already in the list: Under some conditions an xtimer can end up twice in the internal list of the xtimer module #4902: xtimer: xtimer_set: xtimer_set does not handle integer overflows well #5338: xtimer: xtimer_now() not ISR safe for non-32-bit platforms. #5928: xtimer: usage in board_init() crashes: some boards use the xtimer in there board_init() function. The xtimer is however first initialized in the auto_init module which is executed after board_init() #6052: tests: xtimer_drift gets stuck: xtimer_drift application freezes after ~30-200 seconds 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. #2175: ubjson: valgind registers "Invalid write of size 4" in unittests #4590: pkg: building relic with clang fails. #5796: native: tlsf: early malloc will lead to a crash: TLSF needs pools to be initialized (which is currently expected to be done in an application). If a malloc is needed before an application's main started (e.g. driver initialization) the node can crash, since no pool is allocated yet. other platform related issues ----------------------------- #1891: newlib-nano: Printf formatting does not work properly for some numberic types: PRI[uxdi]64, PRI[uxdi]8 and float are not parsed in newlib-nano #2006: cpu/nrf51822: timer callback may be fired too early #2143: unittests: tests-core doesn't compile for all platforms: GCC build-ins were used in the unittests which are not available with msp430-gcc #2300: qemu unittest fails because of a page fault #4512: pkg: tests: RELIC unittests fail on iotlab-m3 #4522: avsextrem: linker sometimes doesn't find `bl_init_clks()` #4560: make: clang is more pedantic than gcc oonf_api is not building with clang. (Partly solved by #4593) #4694: drivers/lm75a: does not build #4737: cortex-m: Hard fault after a thread exits (under some circumstances) #4822: kw2xrf: packet loss when packets get fragmented #4876: at86rf2xx: Simultaneous use of different transceiver types is not supported #4954: chronos: compiling with -O0 breaks #4866: not all GPIO driver implementations are thread safe: Due to non-atomic operations in the drivers some pin configurations might get lost. #5009: RIOT is saw-toothing in energy consumption (even when idling) #5103: xtimer: weird behavior of tests/xtimer_drift: xtimer_drift randomly jumps a few seconds on nrf52 #5361: cpu/cc26x0: timer broken #5405: Eratic timings on iotlab-m3 with compression context activated #5460: cpu/samd21: i2c timing with compiler optimization #5486: at86rf2xx: lost interrupts #5489: cpu/lpc11u34: ADC broken #5603: atmega boards second UART issue #5678: at86rf2xx: failed assertion in _isr #5719: cc2538: rf driver doesn't handle large packets #5799: kw2x: 15.4 duplicate transmits #5944: msp430: ipv6_hdr unittests fail #5848: arduino: Race condition in sys/arduino/Makefile.include #5954: nRF52 uart_write get stuck #6018: nRF52 gnrc 6lowpan ble memory leak other issues ------------ #1263: TLSF implementation contains (a) read-before-write error(s). #3256: make: Setting constants on compile time doesn't really set them everywhere #3366: periph/i2c: handle NACK #4488: Making the newlib thread-safe: When calling puts/printf after thread_create(), the CPU hangs for DMA enabled uart drivers. #4866: periph: GPIO drivers are not thread safe #5128: make: buildtest breaks when exporting FEATURES_PROVIDED var #5207: make: buildest fails with board dependent application Makefiles #5390: pkg: OpenWSN does not compile: This package still uses deprecated modules and was not tested for a long time. #5520: tests/periph_uart not working #5561: C++11 extensions in header files #5776: make: Predefining CFLAGS are parsed weirdly #5863: OSX + SAMR21-xpro: shell cannot handle command inputs larger than 64 chars #5962: Makefile: UNDEF variable is not working as documented #6022: pkg: build order issue 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 alphabeticalorder): Atmel, Freescale, Imagination Technologies, Limifrog, Nordic, OpenMote, Phytec, SiLabs, UDOO,and Zolertia; and also companies that directly sponsored development time: Cisco Systems, Eistec, Ell-i, Enigeering Spirit, Nordic, FreshTemp LLC, OTAkeys and Phytec. 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) IRC --- * Join the RIOT IRC channel at: irc.freenode.net, #riot-os License ======= * Most of the code developed by the RIOT community is licensed under the GNU Lesser General Public License (LGPL) version 2.1 as published by the Free Software Foundation. * Some external sources are published under a separate, LGPL compatible license (e.g. some files developed by SICS). All code files contain licensing information. RIOT-2016.07 - 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: 8-bit microcontrollers, 16-bit microcontrollers and 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). RIOT is developed by an international open source community which is independent of specific vendors (e.g. similarly to the Linux community) and is licensed with a non-viral copyleft license (LGPLv2.1), which allows indirect business models around the free open-source software platform provided by RIOT. About this release: =================== This release was focused primarily on fixing bugs, but also adds two new supported radio transceivers: CC2420 and CC2538. This new radio support allows to new interoperability tests with other OS, allowing code size comparison and overall network performance for platforms based on these radios. About 198 pull requests with about 325 commits have been merged since the last release and about 65 issues have been solved. 46 people contributed with code in 112 days. 632 files have been touched with 19863 insertions and 3682 deletions. Notations used below: ===================== + means new feature/item * means modified feature/item - means removed feature/item New features and changes ======================== General ---------- * No major changes or new features coming on this release. Core ---- + Introduced Mailbox IPC API (#4919) * Improved clist Network Stack --- + Introduction of netstats in several platforms. * RPL optional auto initialisation Packages --- + Added statistics for TLSF package (#5418) + Added U8g2 library for monochrome displays (#5549) * Added on-the-fly content creation for CCN-lite. Platforms --- + nrf52dk: add support for building with Nordic SoftDevice (6lo over BLE) + Added support for Libellium's waspmote-pro board. + Added support for the iotlab A8/M3 node (https://www.iot-lab.info/hardware/a8/) + Added initial and rudimentary port for TI cc2650stk "SensorTag" (#4675) + Split Zolertia Remote support into Remote Prototype A (remote-pa) and Remote Revision A (remote-reva) Drivers --- + Texas Instruments CC2538 RF driver (PR #5291) + Texas Instruments CC2420 RF driver (PR #5591) + Bosch BM180 sensor. + Added XBee optional AES encryption support System libraries --- * Several xtimer bug fixes Build System --- + Ubuntu 16.04 packaged gcc-arm-none-eabi toolchain can now be used to compile RIOT for ARM boards Other --- * Reworked UART and code factorisation for ATmega CPUs. API changes --- * Unified interface of hashing functions Fixed Issues from the last release ================================== #3824: native: gnrc: hardcore pinging crashes. #4583: cpp11: clang doesn't allow mutex_t to be used with constexpr All cpp11-* tests fail with clang. #5388: gnrc_sixlowpan_iphc_nhc: receiving NHC compressed UDP packets hits assert in IPv6 (Fixed by #5281). Known Issues ========== #3075: nhdp: unnecessary microsecond precision NHDP works with timer values of microsecond precision which is not required. Changing to lower precision would save some memory. #3086: Max. packet length for AT86RF2XX #4048: potential racey memory leak According to the packet buffer stats, flood-pinging a multicast destination may lead to a memory leak due to a race condition. However, it seems to be a rare case and a completely filled up packet buffer was not observed. #5005: ndp: router advertisement sent with global address Under some circumstances a router might send RAs with GUAs. While they are ignored on receive (as RFC 4861 specifies), RAs should have link-local addresses and not even be send out this way. #5007: gnrc icmpv6: Ping reply goes out the wrong interface #5055: cpuid: multiple radios will get same EUI-64 Nodes with multiple interfaces might get the same EUI-64 for them since they are generated from the same CPU ID. #5230: gnrc ipv6: multicast packets are not dispatched to the upper layers. (Fix exists, but was postponed) #5390: pkg: OpenWSN does not compile This package still uses deprecated modules and was not tested for a long time. 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. #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). #334: nativenet crashes when hammered Flood-pinging a native instance from more than one host (either multiple threads on the host system or multiple other native instances), leads to a SEGFAULT. #2071; WIP: native: overdue fixes #4590: pkg: building relic with clang fails. #5432: native: valgrind fails other platform related issues ----------------------------- #4560: make: clang is more pedantic than gcc oonf_api is not building with clang. (Partly solved by #4593) #4866: not all GPIO driver implementations are thread safe Due to non-atomic operations in the drivers some pin configurations might get lost. #5486: at86rf2xx: lost interrupts other issues ------------ #1263: TLSF implementation contains (a) read-before-write error(s). #2761: core: define default flags If a thread is created without the corresponding flag (CREATE_STACKTEST), the ps command will yield wrong numbers for the stack usage. #2927: core: Automatically select the lowest possible LPM mode Not all available low power modes (LPMs) are implemented for each platform and the concept of how the LPM is chosen needs some reconsideration. #2967: Makefile.features: location is not relevant for all features Provided features for the build system should be split up into a board and cpu specific part #4488: Making the newlib thread-safe When calling puts/printf after thread_create(), the CPU hangs for DMA enabled uart drivers. #4841: xtimer: timer already in the list Under some conditions an xtimer can end up twice in the internal list of the xtimer module. #5338: xtimer: xtimer_now() not ISR safe For non-32-bit platforms. 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 alphabeticalorder): Atmel, Freescale, Limifrog, Nordic, OpenMote, Phytec, SiLabs, UDOO,and Zolertia; and also companies that directly sponsored development time:Cisco Systems, Eistec, Ell-i, Enigeering Spirit, Nordic, FreshTemp LLC, and Phytec. 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) IRC --- * Join the RIOT IRC channel at: irc.freenode.net, #riot-os License ======= * Most of the code developed by the RIOT community is licensed under the GNU Lesser General Public License (LGPL) version 2.1 as published by the Free Software Foundation. * Some external sources are published under a separate, LGPL compatible license (e.g. some files developed by SICS). All code files contain licensing information. RIOT-2016.04 - 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: 8-bit microcontrollers, 16-bit microcontrollers and 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). RIOT is developed by an international open source community which is independent of specific vendors (e.g. similarly to the Linux community) and is licensed with a non-viral copyleft license (LGPLv2.1), which allows indirect business models around the free open-source software platform provided by RIOT. About this release: =================== This release adds support for two additional network stacks: lwIP and emb6. A bunch of additional protocols are now available, P2P-RPL in the GNRC network stack, Ethernet-over-Serial (ethos). Murdock, the new, blazing fast RIOT CI is now available to significantly speed up code merging procedures. This release also adds support for a number of new boards and sensors and a new tool for automated border router setup is now provided which greatly simplifies that setup for newbies as well as for old-timers. Last but not least: this release includes a number of bug fixes, mostly about stabilizing and enhancing the networking capabilities of RIOT. About 470 pull requests with about 1196 commits have been merged since the last release and 127 additional issues have been solved. 55 people contributed code in 124 days. 1521 files have been touched with ~91700 insertions and ~42200 deletions. Notations used below: ===================== + means new feature/item * means modified feature/item - means removed feature/item New features and changes ======================== General ---------- + added Makefile support for creating a "binary distribution", making it easier to create closed source applications while still complying to LGPL Testing --- + Murdock, the new RIOT CI + unified pexpect code + added various new unittests and test applications Core ---- + added thread flags, a new method to signal events in an efficient and thread safe manner + messaging is now compile-time optional, shaving off some bytes off each thread's state struct for projects not requiring it + new, simpler list implementation increases mutex and msg performance Network Stack --- + P2P-RPL (RFC6997) + netdev2_test: test framework for users of the netdev2 API Packages --- + emb6 network stack + jsmn (minimal JSON parser) + lwIP network stack + unified and streamlined git package source handling + added support for caching git repositories Platforms --- + reworked existing peripheral drivers and added SPI driver for arduino-mega2560 + added support for nRF52dk + added support for nucleo-f072 and nucleo-f103 + unified LED macros for all boards Drivers --- + ethos "ethernet over serial" driver, enabling shared uart + network communication over one serial connection + RHOM BH1750FVI ambient light sensor + ST LIS3MDL three-axis magnetic sensor + Silicon Labs Si70xx low-power temperature + humidity sensor + simplified GPIO driver interface + AES encryption for xbee radio driver + added ADC mapping to SAUL Sytem libraries --- - vtimer support was dropped completely and removed Build System --- + made build system safe for concurrent building of multiple applications + desvirt integration into the RIOT build system Other --- - simplified border router setup tool (single UART and automation script) API changes --- * at86rf2xx was moved from gnrc_netdev to the netdev2 API * genrand_* -> random_* * xtimer_remove() no longer returns whether a timer was actually removed * disableIRQ(), enableIRQ(), restoreIRQ(), inISR() -> irq_disable(), irq_enable(), irq_restore(), irq_is_in() * renamed periph/random to periph/hwrng Fixed Issues from the last release ================================== * #3109: periph/random: random_read should return unsigned int * #3970: RPL: Advertise DODAG only over the assigned interface * #4462: IPHC/NHC broken between Linux and a RIOT node with a RIOT-based border router in between. * #4608: tests/xtimer_usleep_until: unstable behaviour Known Issues ========== ---------------------- * #3075: nhdp: unnecessary microsecond precision NHDP works with timer values of microsecond precision which is not required. Changing to lower precision would save some memory. * #3086: Max. packet length for AT86RF2XX The size of the link-layer header is not dynamically calculated, but instead the maximum size is always assumed. * #4048: potential racey memory leak According to the packet buffer stats, flood-pinging a multicast destination may lead to a memory leak due to a race condition. However, it seems to be a rare case and a completely filled up packet buffer was not observed. * #5005: ndp: router advertisement sent with global address Under some circumstances a router might send RAs with GUAs. While they are ignored on receive (as RFC 4861 specifies), RAs should have link-local addresses and not even be send out this way. * #5007: gnrc icmpv6: Ping reply goes out the wrong interface * #5055: cpuid: multiple radios will get same EUI-64 Nodes with multiple interfaces might get the same EUI-64 for them since they are generated from the same CPU ID * #5230: gnrc ipv6: multicast packets are not dispatched to the upper layers * #5388: gnrc_sixlowpan_iphc_nhc: receiving NHC compressed UDP packets hits assert in IPv6 Fix already provided in #5281, but did not made it into the release due to its complexity * #5390: pkg: OpenWSN does not compile This package still uses deprecated modules and was not tested for a long time 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. * #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). * #3341 and #3824: nativenet crashes when hammered Flood-pinging a native instance from more than one host (either multiple threads on the host system or multiple other native instances), leads to a SEGFAULT other platform related issues ----------------------------- * #4560: make: clang is more pedantic than gcc oonf_api is not building with clang. * #4583: cpp11: clang doesn't allow `mutex_t` to be used with `constexpr` All cpp11-* tests fail with clang. * #4866: not all GPIO driver implementations are thread safe Due to non-atomic operations in the drivers some pin configurations might get lost other issues ------------ * #1263: TLSF implementation contains (a) read-before-write error(s) * #2761: core: define default flags If a thread is created without the corresponding flag (CREATE_STACKTEST), the ps command will yield wrong numbers for the stack usage * #2927: core: Automatically select the lowest possible LPM mode Not all available low power modes (LPMs) are implemented for each platform and the concept of how the LPM is chosen needs some reconsideration * #2967: Makefile.features: location is not relevant for all features Provided features for the build system should be split up into a board and cpu specific part * #4488: Making the newlib thread-safe When calling puts/printf after thread_create(), the CPU hangs for DMA enabled uart drivers. * #4841: xtimer: timer already in the list Under some conditions an xtimer can end up twice in the internal list of the xtimer module. * #5338: xtimer: xtimer_now() not ISR safe For non-32-bit platforms 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): Atmel, Freescale, Limifrog, Nordic, OpenMote, Phytec, SiLabs, UDOO, and Zolertia; and also companies that directly sponsored development time: Cisco Systems, Eistec, Ell-i, Enigeering Spirit, FreshTemp LLC, and Phytec. 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) IRC ----- * Join the RIOT IRC channel at: irc.freenode.net, #riot-os License ======= * Most of the code developed by the RIOT community is licensed under the GNU Lesser General Public License (LGPL) version 2.1 as published by the Free Software Foundation. * Some external sources are published under a separate, LGPL compatible license (e.g. some files developed by SICS). All code files contain licensing information. RIOT-2015.12 - 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: 8-bit microcontrollers, 16-bit microcontrollers and 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). RIOT is developed by an international open source community which is independent of specific vendors (e.g. similarly to the Linux community). About this release: =================== This release is mostly a clean-up and bug-fixing release. Besides that, it introduces SAUL, the [S]ensor [A]ctuator [U]ber [L]ayer, which offers a unified API to interact with all different types of sensors and actuators on RIOT supported hardware. Furthermore, it re-enables the support for ICN by integrating CCN-Lite as a package. A lot of new overall documentation was added and existing documentation was improved (http://riot-os.org/api/). In addition, a Vagrant (https://www.vagrantup.com/) configuration file was added to the RIOT repository in order to create reproducible and portable environments that contain all necessary toolchains. About 222 pull requests with about 631 commits have been merged since the last release and 48 additional issues have been solved. 37 people contributed code in 102 days. 980 files have been touched with ~59779 insertions and ~12115 deletions. Notations used below: ===================== + means new feature/item * means modified feature/item - means removed feature/item New features and changes ======================== General ------- Device support -------------- + SAUL [S]ensor [A]ctuator [U]ber [L]ayer Core ---- * replaced deprecated dINT()/eINT() calls by up-to-date disableIRQ()/enableIRQ()/restoreIRQ() calls throughout the whole core Network Stack ------------- + TFTP support + 6LoWPAN: Next Header Compression + leaf mode for RPL nodes * RPL: refactoring of instances and dodags (saved 1kB ROM and 0,5kB RAM) * FIB: initial source route support * change to non-blocking 6LoWPAN fragmentation * POSIX sockets: various fixes * periodic stats printing for ping6 command * convert all vtimer into xtimer calls * send router advertisements without PIOs Packages -------- + CCN-Lite as a ICN network stack + RELIC: efficient cryptography library * fix TLSF to compile with -pedantic Supported platforms ------------------- Additional support for the following boards: + weio board with NXP LPC11U34 (ARM Cortex-M0) + Silicon Labs Wireless Eval Kit SLWSTK6220A (Wonder Gecko) + STM32 Nucleo-F401 Drivers ------- + Arduino-mega2560 GPIO + Arduino pin mapping for Mega2560 and Due Network drivers --------------- + enc28j60 Ethernet chip + at86rf2xx: Add support for channel page * at86rf2xx: fix LQI reading * implement sleep mode for at86rf2xx Sensors drivers --------------- + AT30TSE75x temperature sensor + TCS3772 Color Light-to-Digital converter System libraries ---------------- + partial support for the Arduino API + lightweight semaphores + fmt: simple string formatting library + xtimer: 32-bit version of msg_recv_timeout * implicit socket binding for POSIX connect() and sendto() * posix_semaphore: make API POSIX compliant Examples -------- + microcoap/conn example + minimal GNRC networking example Build System ------------ * split the Cortex-M0 buildtest group to avoid timeout issues with Travis * split the Cortex-M4 buildtest group to avoid timeout issues with Travis Other ----- + vagrant configuration + documentation: various high-level descriptions of crucial features + IoT-LAB: create and connect to debug server * pyterm: fix problems with German umlauts as input Fixed Issues from the last release ================================== #2724: Add support for serial number passing to CMSIS boards, document it Documentation about how to discover and set the serial number of CMSIS-DAP chips is missing #3201: Odd length packet snips cause invalid check sum If an odd length packet snip occurs in a packet and is not the last snip (in the order the packet is supposed to be, not in the list's order) in a packet it will generate a wrong check sum. Known Issues ============ network related issues ---------------------- #3075: nhdp: unnecessary microsecond precision NHDP works with timer values of microsecond precision which is not required. Changing to lower precision would save some memory. #3086: Max. packet length for AT86RF2XX The size of the link-layer header is not dynamically calculated, but instead the maximum size is always assumed. #3970: RPL: Advertise DODAG only over the assigned interface gnrc_rpl seems to multicast DIOs over all interfaces, though gnrc_rpl_init expects an interface as parameter and sets the RPL-nodes multicast address only for that interface. #4048: potential racey memory leak According to the packet buffer stats, flood-pinging a multicast destination may lead to a memory leak due to a race condition. However, it seems to be a rare case and a completely filled up packet buffer was not observed. #4462: IPHC/NHC broken between Linux and a RIOT node with a RIOT-based border router in between. 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. #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). #3341 and #3824: nativenet crashes when hammered Flood-pinging a native instance from more than one host (either multiple threads on the host system or multiple other native instances), leads to a SEGFAULT. #4608: tests/xtimer_usleep_until: unstable behaviour The test starts to output "too large difference" and fails after a random period of time. other platform related issues ----------------------------- #4560: make: clang is more pedantic than gcc oonf_api is not building with clang. #4583: cpp11: clang doesn't allow `mutex_t` to be used with `constexpr` All cpp11-* tests fail with clang. other issues ------------ #2761: core: define default flags If a thread is created without the corresponding flag (CREATE_STACKTEST), the ps command will yield wrong numbers for the stack usage #2927: core: Automatically select the lowest possible LPM mode Not all available low power modes (LPMs) are implemented for each platform and the concept of how the LPM is chosen needs some reconsideration #2967: Makefile.features: location is not relevant for all features Provided features for the build system should be split up into a board and cpu specific part #3109: periph/random: random_read should return unsigned int The documentation of this function does not match corresponding implementation. #4488: Making the newlib thread-safe When calling puts/printf after thread_create(), the CPU hangs for DMA enabled uart drivers. 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): Atmel, Freescale, Limifrog, Phytec, SiLabs, and Zolertia; and also companies that directly sponsored development time: Cisco Systems, Google, Eistec, Ell-i, Engineering Spirit, FreshTemp LLC, and Phytec. 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) IRC ----- * Join the RIOT IRC channel at: irc.freenode.net, #riot-os License ======= * Most of the code developed by the RIOT community is licensed under the GNU Lesser General Public License (LGPL) version 2.1 as published by the Free Software Foundation. * Some external sources are published under a separate, LGPL compatible license (e.g. some files developed by SICS). All code files contain licensing information. RIOT-2015.09 - 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: devices based on 8-bit microcontrollers, 16-bit microcontrollers and 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). RIOT is developed by an international open source community which is independent of specific vendors (e.g. similarly to the Linux community). About this release: ============ This release introduces the GNRC network stack, a completely new, highly modularized and configurable IPv6/6LoWPAN stack. It also includes xtimer as a new timer subsystem for accurate short- and long-term timers. Moreover, peripheral drivers, board, and CPU support has been tidied up and contains about 50% less duplication in the build system. About 580 pull requests with about 2,500 commits have been merged since the last release and 120 additional issues have been solved. 62 people contributed code in 278 days. 2578 files have been touched with ~320,000 insertions and ~134,000 deletions. Loose notations used below: ============ + means new feature/item * means modified feature/item - means removed feature/item New features ============ General ------- + complete codebase now compiles with -Werror on all platforms Device support -------------- + vastly improved hardware abstraction, unified over all devices + unified most common code * complete refactoring of MSP430 and ARM7 code Core ---- + new timer subsystem: xtimer + extended atomic API by compare-and-swap, increase/decrease and set-to-one/set-to-zero functions + introduced a more energy-saving assert macro Network Stack ------------- + RFC compliant gnrc network stack (6LoWPAN, IPv6, UDP, RPL) major refactoring + 6LoWPAN ND (including SLAAC) + example applications working out of the box (gnrc_networking for the full gnrc experience, gnrc_border_router for a 6LoWPAN border router, and default for simple link layer connectivity) + explicit support for border router + auto-init for the network stack + introduction of generic interfaces (netdev, netapi) + introduction of a protocol-independent FIB + introduction of a central packet buffer + wireshark-supported protocol ZEP to send IEEE 802.15.4 frames over UDP on non-IEEE-802.15.4 devices + support for SLIP and link-layers without addresses + new low-level driver model + new nativenet based directly on ethernet + conn: general stack-independent transport layer API + POSIX sockets ported for conn + NHDP support Packages -------- + support for microCoAP + CMSIS DSP Supported platforms ------------------- Additional support for the following boards: + Zolertia ReMote + Atmel SAML21 Xplained Pro (saml21-xpro) + ST Nucleo L1 + ST Nucleo F334 + ST Nucleo F091 + Phytec phyWAVE KW22 + Eistec Mulle + Freescale Freedom FRDM-K64F + TI Stellaris Launchpad LM4F120 + LimiFrog V1 + Silabs EZR32WG Drivers ------- + various peripheral drivers (ADC, UART, timer, SPI, I²C, RTC, RTT, DAC, PWM...) + basic NVRAM driver (interface) Network drivers + native ethernet driver + ENCx24J600 ethernet driver Sensors drivers + ISL29125 RGB light sensor + PDC8544 LCD display + INA220 current and power monitor + MPU-9150 9-DOF motion sensor + LIS3DH accelerometer + TMP006 temperature sensor + MAG3110 magnetometer + MMA8652 accelerometer + DHT11/DHT22 temperature-humidity sensor + ADT7310 temperature sensor System libraries ---------------- + MD5 + Fletcher's checksum + Unified Cipher API and Block cipher operation modes: ECB, CBC, CTR and CCM + Bitfield operations + thread safe ringbuffer + vtimer compatibility layer Build System ------------ + support for the FIT IoT-LAB testbed by direct integration into the Make build system + integrated Docker support + integration of llvm's clang static analyzer + added target for the address sanitizer + indicating possible feature conflicts at compile time + unified OpenOCD script Changes ======= Core ---- * improved documentation * fixed several IPC message queue initializations - removed hwtimer Drivers ------- * optimized/remodeled GPIO interface * optimized/remodeled TIMER interface - temporarily removed CC2420 driver (awaiting last bug fixes for a rewrite) * re-implementation of the CC110x driver against the peripheral interface Network Stack ------------- * temporarily removed and currently being refactored: - TCP support - CCN-lite - AODVv2 System libraries ---------------- * new high level UART/stdio interface * better modularisation of POSIX wrapper modules - removed skipjack crypto library Packages -------- * updated CMSIS HAL to version 4.3 Other ----- * clean-up of deprecated system and network libraries * clean-up of deprecated boards and drivers Selected Issues Fixed since the Last Release ============================================ #21: Deal with stdin in bordermultiplex.c A completely new border router implementation is in place #715: test_hwtimer_wait fails on native Fixed by @benoit-canet in #2870 #861: neighbor discovery for 6LoWPAN not working GNRC implements 6LoWPAN ND in a RFC6775 compliant way #1753: vtimer_msg test crashes after ~49'20" and #1449: a removed vtimer might still get called back by hwtimer vtimer has been replaced by xtimer which does not have these issues #1870: IPv6 neighbor advertisements are malformed According to Wireshark (and reference implementations) GNRC sends well-formed neighbor advertisements #1964 and #1955: eventual problems with IoT-LAB M3 nodes in the testbed Solved by new driver versions for UART and radio #2228: samd21 stack sizes are too small The stacksize has been adapted in #2229 Known Issues ============ network related issues ---------------------- #3075: nhdp: unnecessary microsecond precision NHDP works with timer values of microsecond precision which is not required. Changing to lower precision would save some memory. #3086: Max. packet length for AT86RF2XX The size of the link-layer header is not dynamically calculated, but instead the maximum# size is always assumed. #3201: Odd length packet snips cause invalid check sum If an odd length packet snip occurs in a packet and is not the last snip (in the order the packet is supposed to be, not in the list's order) in a packet it will generate a wrong check sum. #4048: potential racey memory leak According to the packet buffer stats, flood-pinging a multicast destination may lead to a memory leak due to a race condition. However, it seems to be a rare case and a completely filled up packet buffer was not observed. 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). #3341 and #3824: nativenet crashes when hammered Flood-pinging a native instance from more than one host (either multiple threads on the host system or multiple other native instances), leads to a SEGFAULT. other platform related issues ----------------------------- #2724: Add support for serial number passing to CMSIS boards, document it Documentation about how to discover and set the serial number of CMSIS-DAP chips is missing other issues ------------ #2761: core: define default flags If a thread is created without the corresponding flag (CREATE_STACKTEST), the ps command will yield wrong numbers for the stack usage #2927: core: Automatically select the lowest possible LPM mode Not all available low power modes (LPMs) are implemented for each platform and the concept of how the LPM is chosen need some reconsideration #2967: Makefile.features: location is not relevant for all features Provided features for the build system should be split up into a board and cpu specific part #3109: periph/random: random_read should return unsigned int The documentation of this function does not match corresponding implementation. 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): Atmel, Freescale, Limifrog, Phytec, SiLabs, and Zolertia; and also companies that directly sponsored development time: Cisco Systems, Eistec, Ell-i, FreshTemp LLC, and Phytec. 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) IRC ----- * Join the RIOT IRC channel at: irc.freenode.net, #riot-os License ======= * Most of the code developed by the RIOT community is licensed under the GNU Lesser General Public License (LGPL) version 2.1 as published by the Free Software Foundation. * Some external sources are published under a separate, LGPL compatible license (e.g. some files developed by SICS). All code files contain licensing information. 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, I²C, 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 iotlab-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 Universität 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 Universität 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 Universität 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.