.. _zephyr_1.8: Zephyr Kernel 1.8.0 #################### We are pleased to announce the release of Zephyr kernel version 1.8.0. Major enhancements with this release include: * Tickless kernel * IP Stack improvements * Bluetooth 5.0 features * Ecosystem: Tracing, debugging support through third-party tools (openocd, Segger Systemview) * Improved build support on Mac and Windows development environments * Xtensa GCC support * Initial implementation of MMU/MPU support * Expanded device support The following sections provide detailed lists of changes by component. Kernel ****** * Use k_cycle_get_32 instead of sys_cycle_get_32 for Kernel * Added k_panic() and k_oops() APIs for Kernel * Added k_thread_create() API for Kernel * Added k_queue API for Kernel * Add tickless kernel support Architectures ************* * arm: Update core to use struct k_thread * arm: Added ARM MPU support * dts: Added ARM CMSDK support * arm: Added Initial support for NXP MPU * arm: Added Device Tree Support for nRF52832 SoC based boards * arm: Fixed nRF52840-QIAA SoC support for device tree * arm: Added Device Tree Support for nRF52840 SoC & boards * arm: Added Device Tree Support for nRF51822 SoC & boards * dts: Introduced st/mem.h for FLASH & SRAM sizes * dts: Put IRQ priority into the interrupt property * arm: Support for MKL25Z soc * arm: Added FPU support * x86: defined MMU data structures * Support for ARC EM Starter Kit version 2.3 added Boards ****** * Added qemu_xtensa board definition * Added a more informative page fault handler x86 board * xtensa: build similar to other Zephyr arches * Define MMU data structures for x86 board * Added support for board disco_l475_iot1 * Added STM32F413 Nucleo board * Added support for the CC3220SF_LAUNCHXL board * Support for new ARM board FRDM-KL25Z * arduino_101 board enable GPIO by default * boards: convert to using newly introduced integer sized types * arm: Added support for Nucleo L432KC board * arm: Added support for STM32L496G Discovery board * arm: Added support for STM32F469I-DISCO board * BBC micro:bit: Added driver & API for the 5x5 LED display Drivers and Sensors ******************* * UART interrupt-driver API is better defined * Support for pull-style console API * nRF5 IEEE 802.15.4 radio driver added * KW41Z IEEE 802.15.4 radio driver added * Added MCUX TRNG driver * Added support for the SiFive Freedom E310 pinmux driver * drivers/sensor: Convert formatter strings to use PRI defines * Added lps22hb sensor driver * Added lsm6dsl sensor driver * Added heart rate sensor driver * Added support for max30101 heart rate sensor * Added support for lis2dh accelerometer Networking ********** * HTTPS server support added * HTTP Basic-Auth support added * IPv6 fragmentation support added * Add block wise support to CoAP for well-known response * Big refactoring of network buffer handling * Start to collect TCP statistics if enabled in config * IEEE 802.15.4 security support added * DNS resolver sample application added * IPv6 multicast listener (MLDv2) support added * NATS protocol sample application added * HTTP client and server connectivity fixes * Network samples Coverity fixes * Network samples llvm compiler warning fixes * MQTT publisher connectivity fixes * 6lo IPv6 header compression fixes * CoAP connectivity fixes * DHCPv4 connectivity fixes * TCP connectivity fixes * DNS documentation and connectivity fixes * IPv6 connectivity fixes * IPv4 ARP fixes * IEEE 802.15.4 configuration tweaking fixes * Remove ORFD (Overly Reduced Function Device) 802.15.4 support * Network offloading driver fixes * Fix various memory leaks * Properly check TCP and UDP checksum before accepting packet * Start RX and TX network threads in proper order * Network samples documentation fixes and clarifications * RPL mesh routing fixes * Network link (MAC) address fixes Bluetooth ********* * Host: Added ATT and SMP packet tracking for flow control enforcement * Host: GATT database changed to a linked list in preparation for dynamic allocation * Bluetooth 5.0: The Controller reports itself as 5.0-capable * Bluetooth 5.0: Introduced Channel Selection Algorithm #2 support * Bluetooth 5.0: Added Multiple PHY support, both 2Mbit/s and long-range coded * Bluetooth 5.0: Integrated Scan Request notifications * Controller: Added Low Duty Cycle Directed Advertising support * Controller: Added Scan duplicate filtering support * Controller: Enforced complete role separation in the controller for smaller builds * Controller: Introduced Advanced Controller configuration with several new Kconfig options * Controller: Changed the radio interrupts to direct ISRs to reduce interrupt latency * Added HCI Controller to Host flow control support in both Host and Controller * BR/EDR: Added HFP (e)SCO audio channel establishment support * BR/EDR: Added support for a functional SDP server Build and Infrastructure ************************ * Support building host tools * Added separate DTS target * Added support for MSYS2 * Use -O2 instead of -Os for ARC with SDK 0.9 Libraries ********* * Added library for software driven I2C * Created a HTTP library * Added HTTP server library support * Added minimal JSON library * Update TinyCrypt to version 0.2.6 * Added minimal JSON library HALs **** * Added Atmel SAM family I2C (TWIHS) driver * Added Atmel SAM serial (UART) driver * Added WDT driver for Atmel SAM SoCs * Added Atmel SAM4S SoC support * Imported Nordic 802.15.4 radio driver * Added Initial support for NXP MPU * Updated QMSI to 1.4 RC4 * Added FPU support * Added basic support for STM32F413 * Introduced STM32F4x DMA driver * pinmux: stm32: Added support for Nucleo L432KC * Added support for STM32L496G Discovery board * Added dts for STM32F407 * Added support for STM32F4DISCOVERY Board * Added support for STM32F469XI * Added support for STM32F469I-DISCO Documentation ************* * Board documentation added for new board ports * Added a board porting guide * Added security sections to porting and user guides * Continued migration of wiki.zephyrproject.org material to website and github wiki * Improved CSS formatting and appearance of generated documents * Added breadcrumb navigation header with kernel version number * Updated getting started setup guides for Linux, Windows, and macOS * Updates and additions to follow new and updated kernel features * Broken link and spelling check scans * Removed deprecated kernel documentation (pre 1.6 release) from website (still available in git repo if needed) Tests and Samples ***************** * Added test to verify same tick timeout expiry order * Added clock_test for kernel * Added tickless tests * Added a simple CC2520 crypto dev test * Added combined observer & broadcaster app for Bluetooth samples * Added support to wait both IPv4 and IPv6 * Enabled tickless kernel option in some apps JIRA Related Items ****************** .. comment List derived from Jira query: ... * :jira:`ZEP-248` - Add a BOARD/SOC porting guide * :jira:`ZEP-339` - Tickless Kernel * :jira:`ZEP-540` - add APIs for asynchronous transfer callbacks * :jira:`ZEP-628` - Validate RPL Routing node support * :jira:`ZEP-638` - feature to consider: flag missing functionality at build time when possible * :jira:`ZEP-720` - Add MAX30101 heart rate sensor driver * :jira:`ZEP-828` - IPv6 - Multicast Join/Leave Support * :jira:`ZEP-843` - Unified assert/unrecoverable error infrastructure * :jira:`ZEP-888` - 802.15.4 - Security support * :jira:`ZEP-932` - Adapt kernel sample & test projects * :jira:`ZEP-948` - Revisit the timeslicing algorithm * :jira:`ZEP-973` - Remove deprecated API related to device PM functions and DEVICE\_ and SYS\_* macros * :jira:`ZEP-1028` - shrink k_block struct size * :jira:`ZEP-1032` - IPSP router role support * :jira:`ZEP-1169` - Sample mbedDTLS DTLS client stability on ethernet driver * :jira:`ZEP-1171` - Event group kernel APIs * :jira:`ZEP-1280` - Provide Event Queues Object * :jira:`ZEP-1313` - porting and user guides must include a security section * :jira:`ZEP-1326` - Clean up _THREAD_xxx APIs * :jira:`ZEP-1388` - Add support for KW40 SoC * :jira:`ZEP-1391` - Add support for Hexiwear KW40 * :jira:`ZEP-1392` - Add FXAS21002 gyroscope sensor driver * :jira:`ZEP-1435` - Improve Quark SE C1000 ARC Floating Point Performance * :jira:`ZEP-1438` - AIO: AIO Comparator is not stable on D2000 and Arduino101 * :jira:`ZEP-1463` - Add Zephyr Support in segger SystemView * :jira:`ZEP-1500` - net/mqtt: Test case for the MQTT high-level API * :jira:`ZEP-1528` - Provide template for multi-core applications * :jira:`ZEP-1529` - Unable to exit menuconfig * :jira:`ZEP-1530` - Hotkeys for the menu at the bottom of menuconfig sometimes doesn't work * :jira:`ZEP-1568` - Replace arm cortex_m scs and scb functionality with direct CMSIS-core calls * :jira:`ZEP-1586` - menuconfig: Backspace is broken * :jira:`ZEP-1599` - printk() support for the '-' indicator in format string (left justifier) * :jira:`ZEP-1607` - JSON encoding/decoding library * :jira:`ZEP-1621` - Stack Monitoring * :jira:`ZEP-1631` - Ability to use k_mem_pool_alloc (or similar API) from ISR * :jira:`ZEP-1684` - Add Atmel SAM family watchdog (WDT) driver * :jira:`ZEP-1695` - Support ADXL362 sensor * :jira:`ZEP-1698` - BME280 support for SPI communication * :jira:`ZEP-1711` - xtensa build defines Kconfigs with lowercase names * :jira:`ZEP-1718` - support for IPv6 fragmentation * :jira:`ZEP-1719` - TCP does not work with 6lo * :jira:`ZEP-1721` - many TinyCrypt test cases only run on ARM and x86 * :jira:`ZEP-1722` - xtensa: TinyCrypt does not build * :jira:`ZEP-1735` - Controller to Host flow control * :jira:`ZEP-1759` - All python scripts needed for build should be moved to python 3 to minimize dependencies * :jira:`ZEP-1761` - K_MEM_POOL_DEFINE build error "invalid register name" when built with llvm/icx from ISSM toolchain * :jira:`ZEP-1769` - Implement Set Event Mask and LE Set Event Mask commands * :jira:`ZEP-1772` - re-introduce controller to host flow control * :jira:`ZEP-1776` - sending LE COC data from RX thread can lead to deadlock * :jira:`ZEP-1785` - Tinytile: Flashing not supported with this board * :jira:`ZEP-1788` - [REG] bt_enable: No HCI driver registered * :jira:`ZEP-1800` - Update external mbed TLS library to latest version (2.4.2) * :jira:`ZEP-1812` - Add tickless kernel support in HPET timer * :jira:`ZEP-1816` - Add tickless kernel support in LOAPIC timer * :jira:`ZEP-1817` - Add tickless kernel support in ARCV2 timer * :jira:`ZEP-1818` - Add tickless kernel support in cortex_m_systick timer * :jira:`ZEP-1821` - Update PM apps to use mili/micro seconds instead of ticks * :jira:`ZEP-1823` - Improved Benchmarks * :jira:`ZEP-1825` - Context Switching KPI * :jira:`ZEP-1836` - Expose current ecb_encrypt() as bt_encrypt() so host can directly access it * :jira:`ZEP-1856` - remove legacy micro/nano kernel APIs * :jira:`ZEP-1857` - Build warnings [-Wpointer-sign] with LLVM/icx (bluetooth_handsfree) * :jira:`ZEP-1866` - Add Atmel SAM family I2C (TWIHS) driver * :jira:`ZEP-1880` - "samples/grove/temperature": warning raised when generating configure file * :jira:`ZEP-1886` - Build warnings [-Wpointer-sign] with LLVM/icx (tests/net/nbuf) * :jira:`ZEP-1887` - Build warnings [-Wpointer-sign] with LLVM/icx (tests/drivers/spi/spi_basic_api) * :jira:`ZEP-1893` - openocd: 'make flash' works with Zephyr SDK only and fails for all other toolchains * :jira:`ZEP-1896` - [PTS] L2CAP/LE/CFC/BV-06-C * :jira:`ZEP-1899` - Missing board documentation for xtensa/xt-sim * :jira:`ZEP-1908` - Missing board documentation for arm/nucleo_96b_nitrogen * :jira:`ZEP-1910` - Missing board documentation for arm/96b_carbon * :jira:`ZEP-1927` - AIO: AIO_CMP_POL_FALL is triggered immediately after aio_cmp_configure * :jira:`ZEP-1935` - Packet loss make RPL mesh more vulnerable * :jira:`ZEP-1936` - tests/drivers/spi/spi_basic_api/testcase.ini#test_spi - Assertion Fail * :jira:`ZEP-1946` - Time to Next Event * :jira:`ZEP-1955` - Nested interrupts crash on Xtensa architecture * :jira:`ZEP-1959` - Add Atmel SAM family serial (UART) driver * :jira:`ZEP-1965` - net-tools HEAD is broken for QEMU/TAP * :jira:`ZEP-1966` - Doesn't seem to be able to both send and receive locally via local address * :jira:`ZEP-1968` - "make mrproper" removes top-level dts/ dir, makes ARM builds fail afterwards * :jira:`ZEP-1980` - Move app_kernel benchmark to unified kernel * :jira:`ZEP-1984` - net_nbuf_append(), net_nbuf_append_bytes() have data integrity problems * :jira:`ZEP-1990` - Basic support for the BBC micro:bit LED display * :jira:`ZEP-1993` - Flowcontrol Required for CDC_ACM * :jira:`ZEP-1995` - samples/subsys/console breaks xtensa build * :jira:`ZEP-1997` - Crash during startup if co-processors are present * :jira:`ZEP-2008` - Port tickless idle test to unified kernel and cleanup * :jira:`ZEP-2009` - Port test_sleep test to unified kernel and cleanup * :jira:`ZEP-2011` - Retrieve RPL node information through CoAP requests * :jira:`ZEP-2012` - Fault in networking stack for cores that can't access unaligned memory * :jira:`ZEP-2013` - dead object monitor code * :jira:`ZEP-2014` - Default samples/subsys/shell/shell fails to build on QEMU RISCv32 / NIOS2 * :jira:`ZEP-2019` - Xtensa port does not compile if CONFIG_TICKLESS_IDLE is enabled * :jira:`ZEP-2027` - Bluetooth Peripheral Sample won't pair with certain Android devices * :jira:`ZEP-2029` - xtensa: irq_offload() doesn't work on XRC_D2PM * :jira:`ZEP-2033` - Channel Selection Algorithm #2 * :jira:`ZEP-2034` - High Duty Cycle Non-Connectable Advertising * :jira:`ZEP-2037` - Malformed echo response * :jira:`ZEP-2048` - Change UART "baud-rate" property to "current-speed" * :jira:`ZEP-2051` - Move away from C99 types to zephyr defined types * :jira:`ZEP-2052` - arm: unhandled exceptions in thread take down entire system * :jira:`ZEP-2055` - Add README.rst in the root of the project for github * :jira:`ZEP-2057` - crash in tests/net/rpl on qemu_x86 causing intermittent sanitycheck failure * :jira:`ZEP-2061` - samples/net/dns_resolve networking setup/README is confusing * :jira:`ZEP-2064` - RFC: Making net_shell command handlers reusable * :jira:`ZEP-2065` - struct dns_addrinfo has unused fields * :jira:`ZEP-2066` - nitpick: SOCK_STREAM/SOCK_DGRAM values swapped compared to most OSes * :jira:`ZEP-2069` - samples: net: dhcpv4_client: runs failed on frdm k64f board * :jira:`ZEP-2070` - net pkt doesn't full unref after send a data form bluetooth's ipsp * :jira:`ZEP-2076` - samples: net: coaps_server: build failed * :jira:`ZEP-2077` - Fix IID when using CONFIG_NET_L2_BLUETOOTH_ZEP1656 * :jira:`ZEP-2080` - No reply from RPL node after 20-30 minutes. * :jira:`ZEP-2092` - [NRF][BT] Makefile:946: recipe for target 'include/generated/generated_dts_board.h' failed * :jira:`ZEP-2114` - tests/kernel/fatal : Fail for QC1000/arc * :jira:`ZEP-2125` - Compilation error when UART1 port is enabled via menuconfig * :jira:`ZEP-2132` - Build samples/bluetooth/hci_uart fail * :jira:`ZEP-2138` - Static code scan (coverity) issues seen * :jira:`ZEP-2143` - Compilation Error on Windows 10 with MSYS2 * :jira:`ZEP-2152` - Xtensa crashes on startup for cores with coprocessors * :jira:`ZEP-2178` - Static code scan (coverity) issues seen