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2015.12: added release notes
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| 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. | ||
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| 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). | ||
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| RIOT is developed by an international open source community which is | ||
| independent of specific vendors (e.g. similarly to the Linux community). | ||
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| 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. | ||
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| 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. | ||
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| Notations used below: | ||
| ===================== | ||
| + means new feature/item | ||
| * means modified feature/item | ||
| - means removed feature/item | ||
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| New features and changes | ||
| ======================== | ||
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| General | ||
| ------- | ||
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| Device support | ||
| -------------- | ||
| + SAUL [S]ensor [A]ctuator [U]ber [L]ayer | ||
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| Core | ||
| ---- | ||
| * replaced deprecated dINT()/eINT() calls by up-to-date disableIRQ()/enableIRQ()/restoreIRQ() | ||
| calls throughout the whole core | ||
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| 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 | ||
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| Packages | ||
| -------- | ||
| + CCN-Lite as a ICN network stack | ||
| + RELIC: efficient cryptography library | ||
| * fix TLSF to compile with -pedantic | ||
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| 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 | ||
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| Drivers | ||
| ------- | ||
| + Arduino-mega2560 GPIO | ||
| + Arduino pin mapping for Mega2560 and Due | ||
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| Network drivers | ||
| --------------- | ||
| + enc28j60 Ethernet chip | ||
| + at86rf2xx: Add support for channel page | ||
| * at86rf2xx: fix LQI reading | ||
| * implement sleep mode for at86rf2xx | ||
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| Sensors drivers | ||
| --------------- | ||
| + AT30TSE75x temperature sensor | ||
| + TCS3772 Color Light-to-Digital converter | ||
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| 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 | ||
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| Examples | ||
| -------- | ||
| + microcoap/conn example | ||
| + minimal GNRC networking example | ||
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| 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 | ||
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| 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 | ||
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| Fixed Issues from the last release | ||
| ================================== | ||
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| #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. | ||
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| Known Issues | ||
| ============ | ||
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| 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. | ||
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| 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. | ||
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| 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. | ||
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| 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. | ||
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| 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. | ||
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| More information | ||
| ================ | ||
| http://www.riot-os.org | ||
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| Mailing lists | ||
| ------------- | ||
| * RIOT OS kernel developers list | ||
| * [email protected] (http://lists.riot-os.org/mailman/listinfo/devel) | ||
| * RIOT OS users list | ||
| * [email protected] (http://lists.riot-os.org/mailman/listinfo/users) | ||
| * RIOT commits | ||
| * [email protected] (http://lists.riot-os.org/mailman/listinfo/commits) | ||
| * Github notifications | ||
| * [email protected] (http://lists.riot-os.org/mailman/listinfo/notifications) | ||
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| IRC | ||
| ----- | ||
| * Join the RIOT IRC channel at: irc.freenode.net, #riot-os | ||
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| License | ||
| ======= | ||
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| * 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). | ||
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| All code files contain licensing information. | ||
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| RIOT-2015.09 - Release Notes | ||
| ============================ | ||
| RIOT is a real-time multi-threading operating system that supports a range of | ||
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