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Releases: RIOT-OS/RIOT

Release-2019.04

29 Apr 13:52
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RIOT-2019.04 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for a range of devices that are typically
found in the Internet of Things: 8-bit and 16-bit microcontrollers as well as
light-weight 32-bit processors.

RIOT is based on the following design principles: energy-efficiency, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with 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:

The 2019.04 release includes a number of new features including porting of
riotboot to a number of new platforms, 802.15.4 support on the nRF52, and the
ability for firmware to flash images into a separate boot slot. Support for
several new boards and new sensors was added. Additionally, this release
contains a number of bug fixes and test improvements.

About 320 pull requests with about 569 commits have been merged since the last
release and about 40 issues have been solved. 44 people contributed with code
in 88 days. Approximately 825 files have been touched with 32716 insertions
and 5149 deletions.

Notations used below:

+ means new feature/item
* means modified feature/item
- means removed feature/item

New features and changes

System libraries

+ riotboot_flashwrite: added module to reliably write a firmware image to
  flash
+ crypto: added support for chacha20poly1305 AEAD symmetric key cypher
  algorithm
* threads: added usage of thread_state_t enum to define thread states,
  instead of an integer
* random: added usage of hwrng as seed if available
+ app_metadata: added module to print application metadata
+ unaligned.h: added functions to safely read values from potentially
  unaligned pointers
+ isrpipe: split isrpipe_read_timeout to isolate xtimer dependency

Networking

* gnrc_ipv6: adapted ping6 to original-ping-like implementation
* gnrc_ipv6: allowed sending empty IPv6 packets
+ gnrc_netif_ieee802154: optional support to drop duplicate broadcast
  packets
- gnrc_pktbuf: removed deprecated gnrc_pktbuf_get_iovec() function
+ l2util: initial import of a general IPv6 over X helper module
+ NimBLE: added Bluetooth device scanner
+ NimBLE: added helper functions for address printing
* NimBLE: updated package to the latest version

Packages

+ c25519: add support (embedded x25519 crypto library)

Boards

+ Arduino nano: added support
+ nrf52832-mdk: added support
+ PhyTec reel board: added support
+ MicroPython pyboard v1.1: added support
+ Hamilton: added support
+ saml10-xpro and saml11-xpro: added riotboot support
+ nrf52: added riotboot support
+ ESP32 and stm32: added command to allow runtime configuration of uart mode
+ ESP32 and ESP8266: add support for ESP-NOW network device driver
* ESP8266: freed up RAM by moving most .rodata sections from DRAM to IROM
+ Arduino: added test to verify pin mappings
+ b-l072z-lrwan1: enabled RTT feature
+ STM32l0: added support for dual bank flashing with OpenOCD
* Autonomo: changed flasher to BOSSA
* stm32: rework common clock configuration for stm32f4
* stm32f3discovery: Fix no external low speed crystal

CPU

+ stm32l0: added riotboot support
+ stm32f0: added support for periph_pm
+ stm32f3, f7, l1 and l4: added stop and standby low power modes. All
  STM32 families now provide periph_pm
+ samd21: enabled idle modes
+ sam0: added support for RWWEE on-chip memory
+ Kinetis: added support for EA series and S9KEAZ129 MCU
+ TI CC2650: added I2C periph implementation

Device Drivers

+ i2c: added slave scan shell command
+ USB: added device driver initialization function and API definition
+ USB: added peripheral driver for sam0_common
+ nrf5x temperature sensor: added driver
+ nrf52: added initial 802.15.4 support
+ add7746 capacitance sensor: added driver
+ ds323x extremely accurate RTC: added driver
+ ltc4150 coulomb counter: added driver
+ sht2x temperature and humidity sensor: added driver
+ sds011 dust sensor: added driver
+ added high level driver for H bridge ICs to drive DC motors
* lpsxxx pressure and temperature sensor: add support for lps22hb and
  lps25hb

Build System / Tooling

+ nrf52: added support for openocd
* improved avrdude integration
+ added support for socat as a RIOT terminal
+ added script for backporting PRs during release testing
* pyterm: specified use of python3 by default
* flasher: support for flashing images at offset addresses `pyocd`, `jlink`
* Texas Instruments UniFlash: put configuration in common
* makefiles: introduce FLASHFILE
  * Use FLASHFILE for `riotboot` and `mcuboot`
  * Update flashers `avrdude`, `edbg`, `jlink`, lpc2k_pgm`, `openocd`
* makefiles/docker.inc.mk: Use directories in RIOT when possible
* make: unexport `TERM*` variables
* msba2: compile 'lpc2k_pgm' when flashing

Testing

+ documentation: added initial guide to running tests
+ Makefile.include: add a 'test/available' target
* testrunner: Fix bug matching local echo
* tests/rng: replace printf_float with fmt/print_float
* tests/bloom_bytes: replace %f with fmt/print_float
* tests/posix_semaphore: sem_timedwait should not return before abstime

Known issues

Networking related issues

#11295: RFC 3306 Unicast-Prefix-based-IPv6 Multicast with BorderRouter
#11212: POSIX TCP API: bad file descriptor
#11091: gnrc_minimal on nRF52DK do not work anymore
#11033: 6lo: RIOT does not receive packets from Linux when short_addr is set
#10969: net: netdev_driver_t::send() doc unclear
#10927: gnrc_tftp: Missing minimum length check
#10878: nrfmin can get stuck and never reach RX (while TX works)
#10861: cpu/esp8266: Tracking open problems of esp_wifi netdev driver
#10809: openthread: does not build on current Arch
#10410: Missing drop implementations in netdev_driver_t::recv
#10389: gnrc_sock_udp: Possible Race condition on copy in application buffer
#10380: netdev_ieee802154: Mismatch between radio ll address and in memory
address
#10370: gomach: Resetting netif with cli doesn't return
#10338: xbee: setting PAN ID sometimes fails
#9709: examples: failed assertion in dtls-echo example
#9656: gnrc/netif: various problems after resetting interface a second time
#8779: CC2538 RF overlapping PIN usage
#8752: mrf24j40: does not link for examples/default
#8631: at86rf2xx/kw2xrf: scalar NETOPT options checked as arrays
#8271: app/netdev: application stops working after receiving frames with
assertion or completely without error
#8242: at86rf2xx: Dead lock when sending while receiving
#8199: gcoap example request on tap I/F fails with NIB issue
#8172: gnrc_netif, gnrc_uhcpc: Replacing prefix on border router results in no
configured prefix
#8130: gcoap: can't build with network stacks other than GNRC
#8086: gnrc_rpl_p2p: port to nib and fix compile errors
#7737: pkg: libcoap is partially broken and outdated
#7474: 6lo gnrc fragmentation expects driver to block on TX
#6018: nRF52 gnrc 6lowpan ble memory leak
#5863: OSX + SAMR21-xpro: shell cannot handle command inputs larger than 64 chars
#5748: gnrc: nodes crashing with too small packet buffer
#5486: at86rf2xx: lost interrupts
#5230: gnrc ipv6: multicast packets are not dispatched to the upper layers
#5051: Forwarding a packet back to its link layer source should not be allowed
#5016: gnrc_rpl: Rejoining RPL instance as root after reboot messes up routing
#4527: gnrc_ipv6: Multicast is not forwarded if routing node listens to the
address

Timer related issues

#10545: periph_timer: systematic proportional error in timer_set
#10523: saml21 system time vs rtc
#10351: samd21/periph/rtt: Interrupt flags are not correctly cleared
#10073: xtimer_usleep wrong delay time
#9187: sys/newlib: gettimeofday() returns time since boot, not current wall time
#9052: misc issues with tests/trickle
#9049: xtimer mis-scaling with long sleep times
#8746: stm32_common/periph/rtc: current implementation broken/poor accuracy
#8388: xtimer_periodic_wakeup is not interrupt safe
#8251: telosb: xtimer config wrong when running on a tmote sky
#7347: xtimer_usleep stuck for small values
#7114: xtimer: add's items to the wrong list if the timer overflows between
_xtimer_now() and irq_disable()
#6442: cpu/native: timer interrupt issue
#6052: tests: xtimer_drift gets stuck
#5338: xtimer: xtimer_now() not ISR safe
#5103: xtimer: weird behavior of tests/xtimer_drift, bug?

Drivers related issues

#11405: nrfmin: communication not possible after multicast ping with no interval
#10559: I2C API write_regs does not fit implementation
#9546: dht: driver for dht11 sensor sometimes stuck in dht_read() on Atmel SAMR21
#9419: cpu/msp430: GPIO driver doesn't work properly
#8213: at86rf2xx: Basic mode and NETOPT_AUTOACK
#8045: stm32/periph/uart: extra byte transmitted on first transmission
#8028: diskio: failed assertion in send_cmd() on lpc2387
#4876: at86rf2xx: Simultaneous use of different transceiver types is not
supported
#3366: periph/i2c: handle NACK

Native related issues

#7206: native: race-condition in IPC
#5796: native: tlsf: early malloc will lead to a crash
#495: native not float safe
...

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Release-2019.01

15 Feb 11:04
2019.01
9876e93
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RIOT-2019.01 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for a range of devices that are typically
found in the Internet of Things: 8-bit and 16-bit microcontrollers as well as
light-weight 32-bit processors.

RIOT is based on the following design principles: energy-efficiency, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with 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:

The 2019.01 release includes a number of new features including DMA support on
all STM32 boards, WiFi with IP connectivity on ESP32 and ESP8266, and riotboot,
a simple bootloader supporting multiple firmware slots, compatible with most Arm
Cortex-M boards supported by RIOT. Support for several new boards and new sensors
was added, as well as for the new CPU architecture Armv8-M (Cortex-M23). Last
but not least, this release contains a number of bug fixes and enhances test
automation.

About 387 pull requests with about 912 commits have been merged since the last
release and about 36 issues have been solved. 54 people contributed with code
in 110 days. Approximately 1554 files have been touched with 176241 insertions
and 50593 deletions.

Notations used below:

+ means new feature/item
* means modified feature/item
- means removed feature/item

New features and changes

System libraries

+ riotboot: initial implementation of a bootloader with multi-slots
  and firmware header management
+ base64: add size estimation functions

Networking

* gnrc_ipv6: send IPv6 error messages on error
* gnrc_ipv6: refactor and improve IPv6 message reception
* gnrc_netif: refactor for easier device type integration
+ pkg_semtech-loramac: added timer calibation
* nanocoap: fix confirmable retry countdown

Packages

* gecko_sdk: bumped to version 2.5

Boards

+ added support for Kinetic USB-KW41Z
+ added support for Makerdiary nrf52840-mdk
+ added support for Microchip saml10-xpro and saml11-xpro
+ added support for Nordic nrf51-dk
+ added support for Phytec phynode-kw41z
+ added support for SODAQ SARA AFF
* b-l475e-iot01a: provide RTC and RTT features
* stm32: factorize common I2C configurations
* nucleo-l433rc/nucleo-f072rb/nucleo-f767zi: provide I2C configuration
* nucleo-l433rc: use LPUART (USB port) as stdio
* nucleo-l496zg: use LPUART (USB port) as stdio
* frdm-k64f: updated LPTMR configuration
* sensebox_samd21: add MTD configuration
* nrf51: factorize files and configurations of nrf51 based boards
* nrf52: better factorize files and configurations of nrf52 based boards

CPU

+ cortexm-common: add FPU support for cortex-m4f and cortex-m7
+ cortexm-common: added support for cortex-m23
+ added support for saml10 and saml11
+ efm32: added support for 32-bit timers
+ esp32: added esp_wifi netdev driver
+ esp8266: added esp_wifi netdev driver
+ stm32-common: add DMA support for all STM32
+ stm32-common: add LPUART driver
+ atmega-common: Add PUF SRAM feature
* nrf5x: added management of multiple exti pins in gpio driver
* nrf5x: rework UART driver to allow using multiple UARTs on nrf52840

Device Drivers

+ added support for CCS811 gas sensor
+ added support for SHT3x temperature and humidity sensor
+ added support for TPS6274x step-down dcdc converter
* periph_eeprom: added clear and erase functions

Build System / Tooling

+ added support for PyOCD programmer
+ added compile_and_test_for_board script + checks
* updated EDBG version
* testbed-support: added frdm-kw41z, pba-d-01-kw2x, samr30-xpro to
  supported archis
* pyterm: correctly catch exception when serial port is busy
* print_toolchain_version: added 'make' version

Testing

+ periph_dma: added automatic test script
+ periph_rtc: added automatic test script

Known issues

Networking related issues

#10969: net: netdev_driver_t::send() doc unclear
#10956: tests/gnrc_tcp_*: #2 not working on 6Lo-based boards
#10927: gnrc_tftp: Missing minimum length check
#10878: nrfmin can get stuck and never reach RX (while TX works)
#10861: cpu/esp8266: Tracking open problems of esp_wifi netdev driver
#10809: openthread: does not build on current Arch
#10410: Missing drop implementations in netdev_driver_t::recv
#10389: gnrc_sock_udp: Possible Race condition on copy in application buffer
#10380: netdev_ieee802154: Mismatch between radio ll address and in memory
address
#10370: gomach: Resetting netif with cli doesn't return
#10338: xbee: setting PAN ID sometimes fails
#9709: examples: failed assertion in dtls-echo example
#9656: gnrc/netif: various problems after resetting interface a second time
#8859: cc1101 work instability
#8779: CC2538 RF overlapping PIN usage
#8752: mrf24j40: does not link for examples/default
#8631: at86rf2xx/kw2xrf: scalar NETOPT options checked as arrays
#8271: app/netdev: application stops working after receiving frames with
assertion or completely without error
#8242: at86rf2xx: Dead lock when sending while receiving
#8199: gcoap example request on tap I/F fails with NIB issue
#8172: gnrc_netif, gnrc_uhcpc: Replacing prefix on border router results in no
configured prefix
#8130: gcoap: can't build with network stacks other than GNRC
#8086: gnrc_rpl_p2p: port to nib and fix compile errors
#7737: pkg: libcoap is partially broken and outdated
#7474: 6lo gnrc fragmentation expects driver to block on TX
#6018: nRF52 gnrc 6lowpan ble memory leak
#5863: OSX + SAMR21-xpro: shell cannot handle command inputs larger than 64 chars
#5849: pkg: ccn-lite: rework convenience functions
#5748: gnrc: nodes crashing with too small packet buffer
#5486: at86rf2xx: lost interrupts
#5230: gnrc ipv6: multicast packets are not dispatched to the upper layers
#5051: Forwarding a packet back to its link layer source should not be allowed
#5016: gnrc_rpl: Rejoining RPL instance as root after reboot messes up routing
#4527: gnrc_ipv6: Multicast is not forwarded if routing node listens to the
address

Timer related issues

#10545: periph_timer: systematic proportional error in timer_set
#10523: saml21 system time vs rtc
#10351: samd21/periph/rtt: Interrupt flags are not correctly cleared
#10073: xtimer_usleep wrong delay time
#9187: sys/newlib: gettimeofday() returns time since boot, not current wall time
#9052: misc issues with tests/trickle
#9049: xtimer mis-scaling with long sleep times
#8746: stm32_common/periph/rtc: current implementation broken/poor accuracy
#8388: xtimer_periodic_wakeup is not interrupt safe
#8251: telosb: xtimer config wrong when running on a tmote sky
#7347: xtimer_usleep stuck for small values
#7114: xtimer: add's items to the wrong list if the timer overflows between
_xtimer_now() and irq_disable()
#6442: cpu/native: timer interrupt issue
#6052: tests: xtimer_drift gets stuck
#5338: xtimer: xtimer_now() not ISR safe
#5103: xtimer: weird behavior of tests/xtimer_drift, bug?

Drivers related issues

#10559: I2C API write_regs does not fit implementation
#9546: dht: driver for dht11 sensor sometimes stuck in dht_read() on Atmel SAMR21
#9419: cpu/msp430: GPIO driver doesn't work properly
#8213: at86rf2xx: Basic mode and NETOPT_AUTOACK
#8045: stm32/periph/uart: extra byte transmitted on first transmission
#8028: diskio: failed assertion in send_cmd() on lpc2387
#4876: at86rf2xx: Simultaneous use of different transceiver types is not
supported
#3366: periph/i2c: handle NACK

Native related issues

#10972: examples/nanocoap_server hangs after > 256 bytes packet
#8444: release test 2018.01 RC1: tests/thread_priority_inversion, hangup
#7206: native: race-condition in IPC
#5796: native: tlsf: early malloc will lead to a crash
#495: native not float safe

Other platforms related issues

#10842: Preemption of malloc on AVR
#10258: Incorrect default $PORT building for esp32-wroom-32 on macOS
#10122: Indeterministic hard fault in _mutex_lock(), with nRF52 SoftDevice
#10076: cpu/cortexm_common: irq_enable returns the current state of interrupts
(not previous)
#8408: pkg/fatfs: linker error when build tests/pkg_fatfs_vfs for msb430 based
boards
#8052: mips: several issues
#7753: pic32-wifire: race-condition when linking in concurrent build
#7667: sam0 flashpage_write issue
#7020: isr_rfcoreerrors while pinging between CC2538DKs
#6567: periph/spi: Switching between CPOL=0,1 problems on Kinetis with software CS
#5774: cpu: cortexm_common: context switching code breaks when compiling with LTO
#4954: chronos: compiling with -O0 breaks
#4612: pkg: TLSF does not build for 16 bit platforms
#1891: newlib-nano: Printf formatting does not work properly for some numeric
types

Build system related issues

#10857: frdm-kw41z: error with SLOT_LEN handling and flasher not working
#10850: Tracking: remove harmfull use of export in make and immediate
evaluation
#10459: make: make clean all does not make sense and should be removed
#10047: Make warns to expect errors when disabling optional modules
#9913: Dependencies processing order issues
#9742: buildtest uses wrong build directory
#9645: Different build behavior between murdock and `r...

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Release-2018.10.1

05 Feb 10:00
2018.10.1
914b5a2
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RIOT-2018.10.1 - Release Notes

This is a bug fixing release for the RIOT 2018.10 release.
The following bugs were fixed:

#10757: sock_dns: fix out-of-bound errors
- sock_dns: remove out-of-place puts() call
- sock_dns: remove some magic numbers
- sock_dns: fix out-of-bound errors

#10759: 2018.10 compile fixes
- pkg/jerryscript: disable -Wconversion for llvm
- pkg/nimble: disable -Waddress-of-packed-member for llvm
- pkg/tinycrypt: update commit hash after upstream rewrote history

#10285: at86rf2xx: release framebuffer on recv with (len > 0) && (buf == NULL)
- at86rf2xx: correct framebuffer release

Release-2018.10

13 Nov 14:56
2018.10
6ab5f15
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RIOT-2018.10 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for a range of devices that are typically
found in the Internet of Things: 8-bit and 16-bit microcontrollers as well as
light-weight 32-bit processors.

RIOT is based on the following design principles: energy-efficiency, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with 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:

The 2018.10 release includes new features, like CoAP Resource Directory and
Block2, ESP32 support, rework of I2C interface, EEPROM registry,
Full and Minimal Thread Devices support in OpenThread and compliance of
LoRaWAN 1.0.2 (ABP counters stored in EEPROM). Several boards were introduced.

During the last release the board documentation was migrated from the wiki to
the RIOT API documentation to improve the
maintenance of these entries and provide a better user experience when
browsing the documentation. There were also some efforts in grouping some
modules to make them easier to access in the documentation.

There were also some efforts on refactoring, test improvements and bug fixes.

About 392 pull requests with about 914 commits have been merged since the last
release and about 20 issues have been solved. 57 people contributed with code
in 100 days. Approximately 2184 files have been touched with 211964 insertions
and 34806 deletions.

Notations used below:

+ means new feature/item
* means modified feature/item
- means removed feature/item

New features and changes

Community

+ Initial RIOT developer memo + directory structure
+ GitHub feature request template
+ 'testing' in Github PR template
* Rework and documented labeling system
* Rework MAINTAINING.md document
* Rework CONTRIBUTING.md document

Documentation

+ Add boards `slstk3401a`, `slstk3402a` and `sltb001a`
+ Migrate boards documentation to Doxygen
+ New groups under `sys` (serialization, math, memory management, hashes)
+ `arduino` docs for analog map
+ nanocoap
+ tinycbor pkg
* Drivers with `saul` support are now also part of the `drivers_saul` group

Core

+ Architecture dependent thread information
* Fix `byteorder` bebuftohs() / htobebufs() on big endian
* Make `pthread` compilable with g++

System libraries

+ Add EEPROM registration support
+ Add `arduino` time functions micros() and delayMicroseconds()
+ Add `fmt` hex byte
+ ecc: add golay(24,12) half rate and repetition code
+ tsrb: add drop function
* Change `base64` api (const + void*)
* Configure Arduino serial port at compile time
* Move `hamming256` module to generic `ecc`
* sys/auto_init: Fixed initialization of `sht1x`
* crypto/ccm: fix auth_data_len check
- Remove `cbor` module

Networking

+ cord_ep: Full CoRE Resource Directory endpoint support
+ nanocoap: add server-side Block2 support
* emb6_sock_udp: copy receive remote correctly
* ethos: Add drop frame case to recv function
* examples/gcoap: fix post/put without port number
* gnrc/6lo: set more data flag on all but last fragment
* gnrc_ipv6_nib: always configure 802.15.4 long address with IPv6 included
* gnrc_ipv6_nib: fallback to SLAAC if ARO is ignored by upstream
* gnrc_ipv6_nib: make automatic NDP packet emission (NS/RS) configurable
* gnrc_netif: fix l2addr_len > 0, but no l2addr edge-case
* gnrc_netif: reapply event flags on device reset
* gnrc_netif_ieee802154: set FCF Frame Pending when more data is expected
* gnrc_sixlowpan_frag: add page context to reassembly buffer
* gnrc_sixlowpan: refactored for better interchangability of sub-components
* gnrc_sock_[udp|ip]: read return value for _recv after release
* nanocoap: allow empty uri/location path option

Packages

+ libb2: add support (BLAKE2)
+ libhydrogen: add support
+ lora_serialization: LoRa Serialization format support
+ openthread: FTD and MTD support
+ semtech-loramac: add support for RU864 ISM band
* ccn-lite: update and adapt shell commands
* jerryscript: bump version
* littlefs: bump version to v1.6.20
* lwip: bump to version 2.1.0
* semtech-loramac: bump to version 4.4.1
* semtech-loramac: fix uninitialized datarate
* semtech-loramac: lorawan support is not considered experimental anymore
* semtech-loramac: use periph_eeprom to store lorawan configuration
* tiny-asn1: bump version
* tinycbor: Version bump to 0.5.2

Boards

+ i2c configuration for `nucleo-f070`, `nucleo-f091rc`,
  `nucleo-f722ze`, `nucleo-l476rg`, `slstk3402a`.
+ second i2c configuration for `b-l475e-iot01a`
+ esp32-mh-et-live-minikit: add support
+ esp32-olimex-evb: add support
+ esp32-wemos-lolin-d32-pro: add support
+ esp32-wroom-32: add support
+ esp32-wrover-kit: add support
+ esp8266-esp-12x: add support
+ esp8266-olimex-mod: add support
+ esp8266-sparkfun-mod: add support
+ firefly: add support for Zolertia FireFly
+ lobaro_lorabox: add support
+ openmoteb-cc2538: add support
+ samr30-xpro: add support
+ sensebox: add support for `sensebox` and `sensebox_samd21`
+ sodaq_one: add support
+ ublox-c030-u201: add support
* frdm-k64f: update ADC and `saul` configuration
* nrf52xxxdk: make reset pin work
* stm32mindev: rename to `blackpill`

CPU

+ efm32: add support for enabling/disabling DC-DC converter
+ esp32: add initial support
+ esp8266: add initial support
+ i2c: introduce and adapt new I2C interface
+ kinetis: add ADC hardware averaging configuration
+ nrf52: add PWM support
+ samr30: add initial support
+ stm32l4: add support for periph_flashpage
* Add PUF SRAM feature in `nrf5x` and `stm32` families
* atmega_common: allow defining ROM and RAM length for link
* cortexm_common/ldscript: simplify generation of firmwares in section of
  the ROM
* nrf5x_common: fix `gpio` port 1 functionality
* stm32-common: unified support for periph_i2c. I2C is now supported by
  all stm32 families (F0/1/2/3/4/7, L0/1/4)
* stm32_common: fix source selection declared as module dependencies

Device Drivers

+ drivers/ds18: add limited support for Maxim Integrated 1-Wire temperature
  sensor
+ drivers/mma7660: initial support
+ drivers/srf04: add range finder sensor
+ drivers/sx127x: add initial support for multi interrupt pins
+ drivers/tsl4531x: add support for visible light intensity sensor
+ drivers/vcnl40x10: add initial support
* drivers/*: unify driver initialization parameters scheme
* drivers/adxl345: fix driver
* drivers/at86rf2xx: add smart idle listening feature
* drivers/kw2xrf: Fix ack flag handling
* drivers/mtd_spi_nor: add 4-byte address flash support
* drivers/periph_i2c: rework API
* drivers/sx127x: return correct state when device is receiving

Build System / Tooling

+ Makefile.include: Include VERSION file for release
+ dist/tools: add lazysponge tool
+ docker: Use system GIT_CACHE_DIR if available
+ docker: allow using sudo for docker
+ make: introduce periph_gpio_irq
+ make: process include and dep for external modules
+ makefile.iotlab.single.inc.mk: add new supported nodes
* cflags: use gnu99 only if nothing else is specified (mips, msp430, native)
* docker/Makefile.include: Fix BUILDRELPATH when RIOTPROJECT is CURDIR
* docker: export RIOT_CI_BUILD_to docker
* docker: handle building in git worktree
* edbg.inc.mk: allow flashing with an offset in rom without erasing all ROM
* make: add APPDIR to info-build target
* make: provide support for listing supported and blacklisting toolchains
* make: unify app folder search (examples/*, tests/*, ...)
* makefiles/buildtests.inc.mk: fix 'clean-intermediates' not cleaning
* makefiles/docker.inc.mk: handle building in git worktree
* openocd.sh: allow flashing binary files without configuration
* pkg.mk: do not use user identity when applying patches
* pyterm: handle ctrl+d shortcut nicely

Testing

+ automatic compile tests for LLVM for selected boards
+ shellcheck: add CI check script
+ tests/bench_runtime_coreapis: add benchmark for selected core functions
+ tests/bench_sizeof_coretypes: initial include
+ tests/periph_uart: add automated testing script
+ tests/periph_eeprom: add automated testing script
+ tests/periph_flashpage: add automated testing script
* murdock: also compile with LLVM/clang
* murdock: add hook support
+ tests/arduino: add automatic test for arduino module
+ tests/libc_newlib: add test for newlib-nano inclusion
+ tests/periph_uart: add automated testing script
+ tests/gnrc_netif: add test for ULA source selection
+ tests/periph_gpio: add interrupt enable disable command
+ sock_util: Add unittest and fix detected issues

Known Issues

Networking related issues

#4527: gnrc_ipv6: Multicast is not f...

Read more

Release-2018.07

14 Aug 05:13
bb6bedd
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RIOT-2018.07 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for a range of devices that are typically
found in the Internet of Things: 8-bit and 16-bit microcontrollers as well as
light-weight 32-bit processors.

RIOT is based on the following design principles: energy-efficiency, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with 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:

The 2018.07 release includes new features, like NimBLE (ble stack),
a MQTT-SN client, SHA-1 based PRNG, an UUID implementation. The RISC-V CPU
architecture support used by the hifive1 board.
Effort was done on refactoring, documentation, test improvements and bug fixes.

During the last release, maintainers contributed by running the automated test
suites on their boards. This gave valuable feedback on the board support state,
test reliability and where to focus effort to make testing easier and more
reliable.

About 380 pull requests with about 675 commits have been merged since the last
release and about 27 issues have been solved. 45 people contributed with code
in 93 days. Approximately 1678 files have been touched with 147122 insertions
and 16060 deletions.

Notations used below:

+ means new feature/item
* means modified feature/item
- means removed feature/item

New features and changes

Community

+ Maintainers guidelines have been written and added to the repository

Documentation

+ Fix undefined doxygen groups and add a dedicated static check
+ Extend `auto_init` documentation

Core

+ core: clist_foreach() now returns break-causing node

System libraries

+ puf_sram: SRAM PUF feature to seed PRNGs cortex-m platforms
+ random: SHA-1 based PRNG
+ matstat: Integer mathematical statistics library
+ UUID: [RFC4122](https://tools.ietf.org/html/rfc4122) Unique ID library
* analog_util: Refactor, add unit test
- cbor: Deprecation of this module, use cn-cbor or tinycbor package
  instead

Networking

+ asymcute: an asynchronous MQTT-SN client
+ gnrc_ipv6: full duplicate address detection support according to
  [RFC4862](https://tools.ietf.org/html/rfc4862)
+ gnrc_ipv6: support to handle RDNSS option in neighbor discovery
+ netif.h: a network-stack agnostic API to network interfaces
+ lorawan: add example application of autonomous class A device
* sock_udp: allocate ephemeral port on sock creation when port is 0
* gnrc_netif: Enable RX and TX complete events after netdev initialization
* net/gcoap: Refine Observe re-registration
* net/nanocoap: Build message with coap_pkt_t

Packages

+ NimBLE: Bluetooth Low Energy stack used in mynewt
+ TLSF: re-enable original API to have different pools
+ LUA: Add an example with the shell
+ semtech-loramac: add support for link_check MAC command
* libcose: Use RIOT random_bytes instead of randombytes
* tweetnacl: Use RIOT random_bytes instead of randombytes
* hacl: Use RIOT random_bytes instead of randombytes

Boards

+ Nucleo boards use their marketing names
+ HiFive1 (RISC-V)
+ slstk3402a
+ stm32f429i-disc1
+ stm32l476-disco
+ nucleo-l496zg
+ stm32mindev
+ frdm-k22f, frdm-k64f, frdm-kw41z: Add bus configuration for onboard FXOS8700CQ sensor
* mulle: Fix mixed up RX TX pins on UART0

CPU

+ E310 (RISC-V)
* kinetis: GPIO: Enable the correct IRQn on CM0+
* kinetis: Refactor PIT timer driver implementation
* kinetis: Refactor RTT driver
* kinetis: Refactor clock initialization code
* kinetis: Refactor LPTMR timer implementation
* kinetis: Clean up SPI module power handling
* kinetis: Conditionally enable MCG

Device Drivers

+ periph_eeprom API with support for STM32 L0/L1 and AVR
+ AT commands parser
+ Fix periph_flashpage for iotlab-a8-m3/iotlab-m3/fox boards
+ IO1 Xplained extension: add support for light sensor and SD card, fix
  GPIOs initialization and SAUL support
+ tests/bench_timers: A comprehensive benchmark for periph_timer

Build System / Tooling

+ Correctly set the RIOT_VERSION on release archives
+ iotlab-m3/iotlab-a8-m3: fix boards flashing
+ Fix use of non completely initialized BASELIBS variable
+ newlib.mk: extract gcc include search directories for newlib-nano support
+ llvm: many compatibilities issues have been resolved
* testbed-support: use new iot-lab command names

Testing

+ Address some of the failing tests
+ New tests enabled by default in CI
+ Improve testing automation for release testing

Known Issues

Networking related issues

#4527: gnrc_ipv6: Multicast is not forwarded if routing node listens to the
address
#5016: gnrc_rpl: Rejoining RPL instance as root after reboot messes up rooting
#5051: Forwarding a packet back to its link layer source should not be allowed
#5230: gnrc_ipv6: multicast packes are not dispatched to the upper layers
#5748: gnrc: nodes crashing with too small packet buffer
#6123: gnrc: crash with (excessive) traffic in native
#7474: 6lo: gnrc fragmentation expects driver to block on TX
#7737: pkg: libcoap is partially broken and outdated
#8086: gnrc_rpl_p2p: not compiling
#8130: gcoap: can't build witth network stacks other than gnrc
#8172: gnrc_netif, gnrc_uhcpc: Replacing prefix on border router results in no
configured prefix
#8271: app/netdev: application stops working after receiving frames with
assertion or completely without error
#9616: at86rf2xx: can not correctly set channel after NETOPT_STATE_RESET
#9656: gnrc/netif: various problems after resetting interface a second time
#9573: pkg/lwip: assert on samr21-xpro
#9584: drivers/cc2420: add netopt NETOPT_MAX_PACKET_SIZE

Timer related issues

#5103: xtimer: weird behavior of tests/xtimer_drift
#5338: xtimer: xtimer_now() is not ISR safe
#6052: tests: xtimer_drift_gets_stuck
#7114: xtimer: adds items to the wrong list if the timer overflows between
_xtimer_now() and irq_disable()
#7347: xtimer_usleep stuck for small values
#8251: telosb: timer config wrong when running o a tmote sky
#9052: misc issues with tests/trickle

Native related issues

#495: native not float safe
#5796 native: tlsf: early malloc will lead to a crash
#6442: cpu/native: timer interrupt issue
#7206: native: race-condition in IPC

Other platforms related issues

#4512: pkg: tests: RELIC unittests fail on iotlab-m3
#4612: pkg: TLSF does not build for 16 bit platforms
#4872: at86rf2xx: Simultaneous use of different transceiver types is not
supported
#4954: chronos: compiling with -O0 breaks
#4866: periph: GPIO drivers are not thread tafe
#5009: RIOT is saw-toothing in energy consumption (even when idling)
#5128: some use of asm keyword might be missing volatile
#5486: at86rf2xx: lost interrupts
#5774: cpu: cortexm_common: context switching code breaks when compiling with
LTO
#5848: arduino: Race condition in sys/arduino/Makefile.include
#6018: nRF52: gnrc 6lowpan ble memory leak
#6437: periph/spi: Leftovers from SPI rework in #4780
#6567: periph/spi: Switching between CPOL=0,1 problems on Kinetis with software
CS
#6650: GPIO Port shift in cc2538 is unconsistent
#6838: Issuing a reboot on ATmega328p makes the board loop-reboot
#6874: SAMD21: possible CMSIS bug
#7020: isr_rfcoreerrors while pinging between CC2538DKs
#7667: sam0 flashpage_write issues
#7846: stm32f1: I2C read functions return bogus values with unconnected devices
#8028: diskio: failed assertion in send_cmd() on lpc2387
#8045: stm32/periph/uart: extra byte transmitted on first transmission
#8436: Kinetis PhyNode: failed to flash binary > 256K
#8444: tests/thread_priority_inversion hangup
#9616: ATmega platform issues.

Other issues

#1263: sys: the TLSF implementation contains (a) read-before-write error(s)
#4053: macros: RIOT_FILE_RELATIVE printing wrong file name for headers
#4488: making the newlib thread-safe
#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
#6120: Windows AVR Mega development makefile Error
#7220: sys/fmt: Missing tests for fmt_float,fmt_lpad
#7877: SPI connection can't read 16bit size register
#8107: crypto/ccm: bugs in the implementation of CCM mode
#9548: Many i2c bugs found with the i2c api rework but did not reach the release
#9709: examples: failed assertion in dtls-echo example

Fixed Issues from the last release (2018.04)

#8112 crypto/ccm: fix input_len checking with length_encoding
#8532 kinetis: timer_set_absolute randomly misses its target
#8778 sys/random: random_uint32_range is only uniform if range is a power of 2
bug quality defect
#9065 flashpage_write broken on iotlab-m3
#9154 cpu/lpc2387: Fixed broken SPI driver
#9451 Makefile.include: fully define BASELIBS before using its value
#9579 stm32_common: fix ram length for MCUs wi...

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Release-2018.04

11 May 16:07
2018.04
99b170d
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RIOT-2018.04 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for a range of devices that are typically
found in the Internet of Things: 8-bit and 16-bit microcontrollers as well as
light-weight 32-bit processors.

RIOT is based on the following design principles: energy-efficiency, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with 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:

The 2018.04 release includes major progress in support for current crypto
libraries. A lot of work has gone into updating drivers to RIOT's unified
configuration scheme. Support for ten new boards has been added. In our quest
to improve and automate testing, many test scripts have been fixed and
improved, and RIOT's CI now runs many tests on real hardware during its nightly
build testing. And as usual, many tiny fixes and improvements have been merged.

About 390 pull requests with about 1073 commits have been merged since the last
release and about 54 issues have been solved. 44 people contributed with code
in 98 days. Approximately 1491 files have been touched with 208426 insertions.

Notations used below:

+ means new feature/item
* means modified feature/item
- means removed feature/item

New features and changes

System libraries

- cbor: deprecated in favour of cn-cbor
+ hashes: add sha-3 implementation

Networking

* netdev: replaced "struct iovec" with iolist_t
+ nanocoap: added server-side block1 support
+ skald: a BLE advertising stack

Packages

+ cayenne-lpp: A Cayenne LPP library written in C
+ HACL*: a formally verified cryptographic library written in F*
+ qDSA: Small and Secure Digital Signatures with Curve-based
        Diffie--Hellman Key Pairs
+ libcose: Constrained node COSE library
+ cn-cbor: A constrained node implementation of CBOR in C
+ ucglib

Boards

+ arduino-mkrfox1200
+ frdm-kw41z
+ jiminy-mega256rfr2
+ mega-xplained
+ nucleo-l433rc
+ nucleo-l452re
+ slstk3401a
+ slwstk6000b
+ stk3600
+ stk3700

CPU

+ atmega1284p
+ NXP Kinetis KW41Z

Device Drivers

+ bmx055: Bosch bmx055 9-axis IMU
+ ata8520e: Microchip ATA8520E Sigfox(tm) transceiver

Build System / Tooling

+ ci: initial on-hardware test support

Known Issues

Please refer to the issue tracker at https://github.com/RIOT-OS/RIOT/issues.

Acknowledgements

We would like to thank all companies (vendors) that provided us with (their)
hardware for porting and testing RIOT-OS. Further thanks go to companies and
institutions that directly sponsored development time. And finally, big thanks
to all of you contributing in so many different ways to make RIOT worthwhile!

More information

http://www.riot-os.org

Mailing lists

IRC

  • Join the RIOT IRC channel at: irc.freenode.net, #riot-os

License

  • 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 and packages are published under a separate license.

All code files contain licensing information.

Release-2018.01

31 Jan 15:03
2018.01
e4fb634
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RIOT-2018.01 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for a range of devices that are typically
found in the Internet of Things: 8-bit and 16-bit microcontrollers as well as
light-weight 32-bit processors.

RIOT is based on the following design principles: energy-efficiency, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with 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:

The 2018.01 release includes major progress in RIOTs network communication
capabilities, i.e., rewrite of GNRC's neighbour discovery, confirmable messages
in (g)CoAP, LoRa, and GoMacH as well as updates on CCN-lite and LWIP.
Furthermore, RIOT contributes to IKEA-Hacking by bringing support for
the smart home lighting system TRADFRI (note: this will void the warranty).
Needless to say that this release also adds and updates support for several
platforms, drivers, and of course lots of enhancements to the documentation
as well as numerous bug fixes. Last but not least, RIOT now has an official
code of conduct (https://github.com/RIOT-OS/RIOT/blob/master/CODE_OF_CONDUCT.md)

More than 442 pull requests with about 865 commits have been merged since the
last release and about 96 issues have been solved. 54 people contributed with code
in 96 days. Approximately 2370 files have been touched with 223970 insertions
and 181409 deletions.

Notations used below:

+ means new feature/item
* means modified feature/item
- means removed feature/item

New features and changes

System libraries

+ event: event queue framework like libevent

Networking

+ gcoap: confirmable messages
+ nanocoap: no external package anymore
* GNRC: major rewrite of neighbour discovery
* GNRC: new API for network interface handling

Packages

+ gecko_sdk: library for EFM/EFR/EZR32 MCUs
* libcoap: git patching fixed
+ littlefs: filesystem for constraint devices
- nanocoap: now part of RIOT
* openthread: updated
+ semtech-loramac: LoRa MAC
+ umorse: morse encoder

Boards

+ acd52832
* common: restructured shared code for boards
+ b-l475e-iot01a
+ bluepill
+ ikea-tradfri
- pca10000
- pca10005
- qemu-i386
+ ruuvitag
+ sltb001a
+ teensy31
+ thingy52
- x86

CPU

+ efm32
* kinetis: unified all MCU variants
- x86

Device Drivers

+ socket_zep: emulated IEEE 802.15.4 device over a UDP for native
+ hts221
+ lc709203f
+ lis2dh12
+ rn2xx3
+ soft_spi
+ tja1042

Build System / Tooling

+ flake8: python code checker
* make: set `-Wall -Wextra` as default for all compilers and platforms
- sniffer: moved to applications repository
+ tests: add automated test scripts for many apps

Fixed Issues from the last release (2017.10)

#2143: unittests: tests-core doesn't compile for all platforms
#4499: handle of l2src_len in gnrc_ndp_rtr_sol_handle
#4822: kw2xrf: packet loss when packets get fragmented
#5005: ndp: router advertisement sent with global address
#5122: NDP: global unicast address on non-6LBR nodes disappears after a while
#5656: Possible Weakness with locking in the GNRC network stack
#5790: ND: Lost of Global IPV6 on node after sending lot of UDP frame from BR
#5944: msp430: ipv6_hdr unittests fail
#6451: Wrong value in SRF08 driver
#6502: cpu/stm32l1: RTC broken

Known Issues

Networking related issues

#5230: gnrc ipv6: multicast packets are not dispatched to the upper layers
#5858: gnrc: 6lo: potential problem with reassembly of fragments: If one frame
gets lost the reassembly state machine might get out of sync
#7035: lwIP: hangs due to sema change after a while

Timer related issues

#5103: xtimer: weird behavior of tests/xtimer_drift: xtimer_drift randomly
jumps a few seconds on nrf52
#5338: xtimer: xtimer_now() not ISR safe for non-32-bit platforms.
#6052: tests: xtimer_drift gets stuck: application freezes after ~30-200 seconds
#7114: xtimer: add's items to the wrong list if the timer overflows between
_xtimer_now() and irq_disable()

native related issues

#495: native not float safe: When FPU is used and an asynchronous context
switch occurs, either the stack gets corrupted or a floating point
exception occurs.
#6442: cpu/native: timer interrupt does not yield thread

other platform related issues

#1891: newlib-nano: Printf formatting does not work properly for some numeric
types: PRI[uxdi]64, PRI[uxdi]8 and float are not parsed in newlib-nano
#4866: not all GPIO driver implementations are thread safe: Due to non-atomic
operations in the drivers some pin configurations might get lost.
#5848: Arduino: Race condition in sys/arduino/Makefile.include
#6018: nRF52 gnrc 6lowpan ble memory leak
#6261: SAMD21: TC3 & TC4 issue when using TCC2
#6379: nrf52dk/nordic_soft_device: not working anymore
#6437: periph/spi: Leftovers from SPI rework
#6526: atmega based boards freeze when main thread is over
#6836: Issuing a reboot on ATmega328p makes the board loop-reboot
#7753: pic32-wifire: race-condition when linking in concurrent build

other issues

#1263: TLSF implementation contains (a) read-before-write error(s).
#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.
#5776: make: Predefining CFLAGS are parsed weirdly
#5863: OSX + SAMR21-xpro: shell cannot handle inputs of length >64 chars
#5962: Makefile: UNDEF variable is not working as documented

Acknowledgements

We would like to thank all companies (vendors) that provided us with (their)
hardware for porting and testing RIOT-OS. Further thanks go to companies and
institutions that directly sponsored development time. And finally, big thanks
to all of you contributing in so many different ways to make RIOT worthwhile!

More information

http://www.riot-os.org

Mailing lists

IRC

  • Join the RIOT IRC channel at: irc.freenode.net, #riot-os

License

  • 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 and packages are published under a separate license.

All code files contain licensing information.

Release-2017.10

27 Oct 10:17
2017.10
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RIOT-2017.10 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for 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, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with 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:

Most notable, this release is bringing RIOT a step closer to supporting
over-the-air-updates by containing initial support for MCUBoot.
Furthermore, it adds support for some new platforms (e.g. arduino-mkzero,
nucleos, and frdm-k22f), drivers (e.g. my9221, apa102, ds1307), and of course
a large number of bug fixes (e.g. make buildtest now working properly,
various fixes to xtimer).

About 390 pull requests with about 500 commits have been merged since the last
release and about 60 issues have been solved. 39 people contributed with code
in 113 days. 1825 files have been touched with 223454 insertions and 66146 deletions.

Notations used below:

  • means new feature/item
  • means modified feature/item
  • means removed feature/item

New features and changes

Bootloader

System libraries

  • bcd: binary coded decimal en/decoder

Networking

  • gcoap: Add URI-query strings for requests + various fixes

Packages

  • lwip: Updated to v2.0.3

Boards

  • NXP frdm-k22f
  • STM nucleo144-f722
  • Arduino arduino-mkzero
  • ti CC2650 LaunchPad
  • weio

CPU

  • NXP k22f
  • cc2538: ADC
  • stm32l4: RTC
  • samr21e18a
  • msp430: added flashpage driver
  • lpc11u34
  • stm32: unified stmclk implementations, reworked RTC
  • sam0: heavy unification and refactoring, updated vendor headers
  • sam_common: started unification of sam0 and sam3
  • cortexm: interrupt vector cleanup

Device Drivers

  • my9221 - LED controller + Seeed Studio Grove LED bar
  • apa102 - RGB LED
  • ds1307: RTC
  • SAUL support: lps331ap
  • SAUL gpio: allow configuration of initial state and low-active signals
  • sdcard_spi: added mtd interface
  • PM: fixed selection of default implementations for pm_off and pm_set_lowest

Build System / Tooling

  • make: added pkt-prepare target
  • gcc: enabled -fdiagnostics-color per default for arm and native targets
  • edbg: use as default flash tool for sam0-based boards
  • added LOSTANDFOUND.md for listing removed features

Fixed Issues from the last 3 releases (known issues missing in 2017.04 and 2017.07)

#2006: cpu/nrf51822: timer callback may be fired too early
#4841: xtimer: timer already in the list:
#4590: pkg: building relic with clang fails.
#4694: drivers/lm75a: does not build
#4902: xtimer: xtimer_set: xtimer_set does not handle integer overflows well
#5128: make: buildtest breaks when exporting FEATURES_PROVIDED var
#5207: make: buildest fails with board dependent application Makefiles
#5361: cpu/cc26x0: timer broken
#5460: cpu/samd21: i2c timing with compiler optimization
#5489: cpu/lpc11u34: ADC broken
#5799: kw2x: 15.4 duplicate transmits
#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()
#6022: pkg: build order issue
#6331: RTC alarm triggered with 1s delay
#6419: cpu/cc2538: timer broken
#6427: xtimer: infinite loop with xtimer_mutex_lock_timeout
#6501: boards/nucleo: Pin usage collision (SPI clk vs. LED0)
#6542: boards/nucle-f0xx: misconfigured timer configuration
#6904: cpu/saml21: cannot use several EXTI

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: gnrc: potential racey memory leak
#5016: gnrc_rpl: Rejoining RPL instance as root after reboot messes up routing
#5230: gnrc ipv6: multicast packets are not dispatched to the upper layers
#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
#6123: gnrc: crash with (excessive) traffic
#6519: driver/mrf24j40: broken on stm32f4discovery
#7035: lwIP: hangs due to sema change after a while
#7727: pkg: libcoap is partially broken and outdated

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

#5338: xtimer: xtimer_now() not ISR safe for non-32-bit platforms.
#6052: tests: xtimer_drift gets stuck: xtimer_drift application freezes after ~30-200 seconds
#6502: cpu/stm32l1: RTC broken
#7114: xtimer: add's items to the wrong list if the timer overflows between _xtimer_now() and irq_disable()

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
#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.
#6145: native: system reboots on SIGTRAP
#6442: cpu/native: timer interrupt does not yield thread
#7206: native: race-condition in IPC

other platform related issues

#1891: newlib-nano: Printf formatting does not work properly for some numeric types: PRI[uxdi]64,
PRI[uxdi]8 and float are not parsed in newlib-nano
#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
#4560: make: clang is more pedantic than gcc oonf_api is not building with clang (partly fixed by #4593)
#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
#5405: Eratic timings on iotlab-m3 with compression context activated
#5486: at86rf2xx: lost interrupts
#5678: at86rf2xx: failed assertion in _isr
#5944: msp430: ipv6_hdr unittests fail
#5848: arduino: Race condition in sys/arduino/Makefile.include
#6018: nRF52 gnrc 6lowpan ble memory leak
#6261: SAMD21 TC3 & TC4 issue when using TCC2
#6379: nrf52dk/nordic_soft_device: not working anymore
#6437: periph/spi: Leftovers from SPI rework
#6526: atmega based boards freeze when main thread is over
#6836: Issuing a reboot on ATmega328p makes the board loop-reboot
#7347: xtimer_usleep stuck for small values on nucleo-l1
#7753: pic32-wifire: race-condition when linking in concurrent build
#7846: stm32f1: I2C read functions return bogus values with unconnected devices

other issues

#1263: TLSF implementation conta...

Read more

Release-2017.07

14 Jul 11:38
2017.07
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RIOT-2017.07 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time capabilities and comes with support for 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, soft real-time capabilities, small memory footprint, modularity, and uniform API access, independent of the underlying hardware (with 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 fixes, code cleanup and improved documentation, as well as enhancements.
New features brought by this release include:

  • CAN support (Controller Area Network)
  • Support for CoAP OBSERVE requests
  • Basic Thread stack support (initial support for OpenThread)
  • radio duty cycling with LwMAC protocol
  • LoRa radio drivers supporting Semtech hardware

About 230 pull requests with about 442 commits have been merged since the last release and about 13 issues have been solved. 45 people contributed with code in 56 days. 1395 files have been touched with 211720 insertions and 65729 deletions.

Notations used below:

  • means new feature/item
  • means modified feature/item
  • means removed feature/item

New features and changes

API changes

  • removed conn API

System libraries

  • AES CMAC encryption
  • GCC's Stack Smashing Protector (SSP) support
  • Remove 3-DES crypto

Networking

  • CAN stack
  • CoAP OBSERVE request
  • LwMAC protocol
  • OpenThread
  • LwIP port to v2.0.2
  • NHDP port to sock API
  • removed conn API

Packages

  • OpenThread

Boards

  • Arduino MKR1000 (without WiFi)
  • Nucleo144-f412
  • Nucleo144-f746
  • Nucleo144-f767
  • NZ32-SC151 (STM32L1)
  • ST B-L072-LRWAN1 (with LoRa radio)
  • STM32F769 discovery
  • Full support for PhyNode

CPU

  • lm4120: SPI support
  • SAM3: ADC support
  • SAMD21: flashpage, ADC support
  • SAML21: ADC, I2C support
  • STM32F413vg support
  • STM32F7 family (ARM Cortex-M7)
  • STM32L0 family: I2C support
  • STM32: unified DAC support
  • STM32F1/F2/F4 clock initialization refactoring

Device Drivers

  • ADCXX1C I2C ADC support
  • BMP280 temperature/pressure sensor
  • DSP0401 4 digits 16 segment alphanumeric display
  • MMA8x5x motion detection sensor
  • Semtech SX1272 and SX1276 LoRa drivers

Build System

  • EDBG support
  • http download with caching (dlcache)
  • Use Coccinelle static code checker in CI

Special Thanks

We would 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, Nordic, OpenMote, Phytec, SiLabs, UDOO,
and Zolertia;
and also companies that directly sponsored development time:
Cisco Systems, Eïsox, Eistec, Ell-i, Engineering Spirit, Mesotic, Nordic, OTA keys and Phytec.
We also would like to thank people from Inria Chile for their work on OpenThread integration and Semtech LoRa drivers.

More information

http://www.riot-os.org

Mailing lists

IRC

  • Join the RIOT IRC channel at: irc.freenode.net, #riot-os

License

  • 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 and pkg are published under a separate license.

All code files contain licensing information.

RIOT-2017.04

10 May 10:54
2017.04
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RIOT-2017.04 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for 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, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with 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, fixes and enhancements. Among
these has been a huge cleanup regarding cppcheck and documentation, and we're
pleased to announce that all remaining doxygen and cppcheck warnings have been
fixed. We're also proud to present a Virtual File System layer and integration
of the SPIFFS file system. A lot of work has gone into support for
STMicroelectronics's Nucleo family, with RIOT now supporting 28 (up from 13)
Nucleo boards. And as always, there was a lot of under-the-hood cleanup, bug
fixing and documentation work.

About 200 pull requests with about 562 commits have been merged since the last release and about 23
issues have been solved. 32 people contributed with code in 91 days. 2697 files have been touched with
716950 insertions and 492623 deletions.

Notations used below:

  • means new feature/item
  • means modified feature/item
  • means removed feature/item

New features and changes

Core

  • full C11 atomics support
  • rmutex, a recursive mutex implementation

API changes

  • renamed NTOH*() -> ntoh*(), HTON*() -> hton*()
  • removed gpioint API, which was unnused and obsoleted by periph/gpio
  • renamed uuid module to luid

System libraries

  • VFS: virtual file system layer
  • fmt: add print_byte_hex(), fmt_lpad()
  • 3DES: removed support as 3DES is considered legacy crypto

Networking

  • emCute - a small MQTT-SN implementation
  • sock_dns: a simple DNS resolver

Packages

  • SPIFFS, the first file system supported by RIOT's VFS layer
  • jerryscript, a Javascript interpreter

Drivers

  • added dynamixel server motor driver
  • removed ltc4150 driver
  • removed smb380 driver

Build System

  • Experimental distributed building using Murdock
  • most makfiles moved from root into makefiles/
  • added submodule support

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, Nordic, OpenMote, Phytec, SiLabs, UDOO, and Zolertia; and also companies that directly
sponsored development time: Cisco Systems, Eistec, Ell-i, Enigeering Spirit, Nordic, OTAkeys and Phytec.

More information

http://www.riot-os.org
Mailing lists

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 developedby SICS).

All code files contain licensing information.