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 riot/riotbuild:latest image #9589: application/Makefile: environment settings after inclusion of Makefile.include #8913: make: use of immediate value of variables before they have their final value #8122: doxygen: riot.css modified by 'make doc' #7918: Usage of GCC extension for binary constants #6120: Windows AVR Mega development makefile Error #5848: arduino: Race condition in sys/arduino/Makefile.include #5776: make: Predefining CFLAGS are parsed weirdly #4053: macros: RIOT_FILE_RELATIVE printing wrong file name for headers

Other issues

#10800: iotlab-m3: thread tests failing #10751: Possible memset optimized out in crypto code #10731: nanocoap: incomplete response to /.well-known/core request #10639: sys/stdio_uart: dropped data when received at once #10510: xtimer_set_msg: crash when using same message for 2 timers #10468: Tinycryt upstream rewrote history in master branch #10463: stm32f4discovery isn't visible as ttyUSB after flashing with tests/leds #10341: driver_my9221 prevents further flashing of nucleo-l073rz #10206: Lua_basic example doesn't flash in b-l072z-lrwan1 #10175: No error returned from aes_init when a key with a bad size is used #10121: RIOT cannot compile with the latest version of macOS (10.14) and Xcode 10 #9882: sys/tsrb is not thread safe on AVR #9518: periph/i2c: tracking bugs and untested acks #9371: assert: c99 static_assert macro doesn't function for multiple static_asserts in the same scope #8975: dist/tools/openocd: cannot debug some stlink based boards #8653: msba2: default example fails on assert #8589: Why using -F in avrdude? #8436: Kinetis PhyNode: failed to flash binary > 256K #8107: crypto/ccm: bugs in the implementation of CCM mode #7220: sys/fmt: Missing tests for fmt_float, fmt_lpad #6874: SAMD21: possible CMSIS bug ? #6533: tests/lwip target board for python test is hardcoded to native #5218: some use of asm keyword might be missing volatile #5009: RIOT is saw-toothing in energy consumption (even when idling) #4866: periph: GPIO drivers are not thread safe #4512: pkg: tests: RELIC unittests fail on iotlab-m3 #4488: Making the newlib thread-safe #3256: make: Setting constants on compile time doesn't really set them everywhere #2346: Tracker: Reduce scope on unintended COMMON variables #1263: sys: the TLSF implementation contains (a) read-before-write error(s) #9: Manual calibration of the CC1100

Fixed Issues from the last release (2018.10)

#10947: tests/gnrc_tcp_*: not working on 6Lo-based boards #10945: net/gnrc_tcp: timeout of connection establishment #10881: core: msg_receive() on native sometimes returns without msg being re-set #10875: gnrc_ipv6: crash on heavy network load on native #10827: boards/nrf51dk: multiple external interrupts not working #10768: Build is failing with latest RIOT on windows #10761: iotlab-m3: poor ping6 performance and a possibly broken 6lo fragmentation? #10753: nanocoap: options buffer overflow #10739: sock_dns: Security issues (including remote code execution) #10723: gnrc_ipv6_nib: 6Lo-ND EUI-64 checks not portable #10701: gnrc: packet space in gnrc packet buffer is not released on very heavy load #10672: gnrc: runs full on very heavy load #10634: pyterm: weird behaviour with long lines. #10628: Can't read data from BH1750 senseor using STM32F3Discovery #10614: DEBUG stops shell if used in i2c init #10611: Board z1: BTN0_IN is not defined #10598: edbg: not compiling on OS X #10594: cpu/esp32: esp_eth is not working correctly for packet size > 255 octets #10531: ESP-now: ESP_NOW_MAX_SIZE < IPv6 minimum MTU? #10517: Arduino UART cannot set 16 bit baudrate #10508: tracking issue: bionic compile errors #10432: ESP32 toolchain linked to in doc.txt is broken #10419: gnrc_icmpv6_error: Able to bounce up to 64 ICMPv6 error messages between 2 instances #10395: stm32f103xx: I2C has no internal pullups and af config #10353: cpu/nrf5x_common: hwrng hangs #10352: lorawan-example not working #10287: docker: docker cannot access /etc/localtime on OS X #10091: Murdock fails on tests/xtimer_usleep on native #10079: Codacy: several problems (false positives) #10068: sam0_common flash write not working at least for SAML21J18B #9889: ethos: desync between ethos::last_framesize and tsrb content possible #9619: ATmega platform issues #9248: __libc_init_array() crash (newlib) #9191: Logic errors in nanocoap_get() #7877: SPI connection can't read 16 bit size register. #6123: gnrc: crash with (excessive) traffic in native

You can get the complete detail in the git history and in the release milestone Release 2019.01.

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

• RIOT OS kernel developers list devel@riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel)
• RIOT OS users list users@riot-os.org (http://lists.riot-os.org/mailman/listinfo/users)
• RIOT commits commits@riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits)
• Github notifications notifications@riot-os.org (http://lists.riot-os.org/mailman/listinfo/notifications)

IRC

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

License

• 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.

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