[riot-users] RIOT Release 2014.12

Oleg Hahm oliver.hahm at inria.fr
Wed Dec 31 19:14:31 CET 2014


Dear RIOT developers and users,

once more I'm very happy to announce the next and thereby fourth official
release of the RIOT operating system:
                -----------------------------------
                *         RIOT 2014.12            *
                -----------------------------------

This release features support for a bunch of new platforms (e.g. Arduino Mega
2560, Atmel SAMR21-Xplained Pro, Airfy Beacon, and MSB-IoT), and improves
stability and functionality of already supported platforms such as the IoT-Lab
M3 node. By providing support for Atmel's ATmega 2560 MCU, RIOT is now also
available on 8-bit architectures.
We have also improved C++ support for most platforms.

Additional, various drivers for sensors and peripheral devices have been
implemented. RIOT now supports typical MCU peripherals like SPI, I²C, and ADC
on many platforms. On top of these low-level drivers, drivers for temperature,
light, and many more sensors are available.

Within the network stack, this release includes various new routing options.
It includes the first open-source implementation of the AODVv2 routing
protocol and added the non-storing mode for RPL. Moreover, we started a major
refactoring of the network stack and defined a generic interface between
network layers (netapi), a general interface for network device drivers
(netdev), and a global packet buffer.

Furthermore, RIOT supports CBOR and UBJSON, two variants of JSON with a
special focus on constrained node networks. As an external package, RIOT now
provides libfixmath for fixed point math operations.

The package for OpenWSN has also been updated and provides a much clearer
patch-set now.

You can download the RIOT release from Github, either by cloning the
repository or using the tarball:
https://github.com/RIOT-OS/RIOT/archive/2014.12.tar.gz

Happy RIOT,
Oleg
-- 
printk(KERN_DEBUG "%s: Done reprogramming Xilinx, %d bits, good luck!\n",...);
        linux-2.6.6/drivers/net/wan/lmc/lmc_main.c
-------------- next part --------------
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 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 at riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel)
* RIOT OS users list
 * users at riot-os.org (http://lists.riot-os.org/mailman/listinfo/users)
* RIOT commits
 * commits at riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits)
* Github notifications
 * notifications at 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 at riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel)
* RIOT OS users list
 * users at riot-os.org (http://lists.riot-os.org/mailman/listinfo/users)
* RIOT commits
 * commits at riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits)
* Github notifications
 * notifications at 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 at riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel)
* RIOT OS users list
 * users at riot-os.org (http://lists.riot-os.org/mailman/listinfo/users)
* RIOT commits
 * commits at riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits)
* Github notifications
 * notifications at 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.

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 at riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel)
* RIOT OS users list
 * users at riot-os.org (http://lists.riot-os.org/mailman/listinfo/users)
* RIOT commits
 * commits at riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits)
* Github notifications
 * notifications at 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.


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