Zephyr Kernel 1.11.0¶
We are pleased to announce the release of Zephyr kernel version 1.11.0.
Major enhancements with this release include:
Thread-level memory protection on x86, ARC and Arm, userspace and memory domains
Symmetric Multi Processing (SMP) support on the Xtensa architecture.
Initial Armv8-M architecture support.
Native development environment on Microsoft Windows.
Native build target on POSIX platforms.
POSIX PSE52 partial support.
Thread support via integration with OpenThread.
Firmware over-the-air (FOTA) updates over BLE using MCUmgr.
Lightweight flash storage layer for constrained devices.
Additional SoC, platform and driver support for many of the already supported platforms.
The following sections provide detailed lists of changes by component.
Initial Symmetric Multi Processing (SMP) support added:
SMP timer and idling support
Available on the Xtensa architecture
POSIX PSE52 support:
Timer, clock, scheduler and pthread APIs
User space and system call related changes:
Added ARC user space implementation
Added Arm user space implementation
Fixed a few MPU related issues with stack guards
Armv8-M initial architecture support, including the following cores:
New POSIX architecture for native GNU/Linux and macOS build targets:
Targets native executables that can be run on the host operating system
New native_posix board for the POSIX architecture:
Includes a template for hardware models
Adds support for console and logging
Interrupts and timers are simulated in several different configurations
Added support for the following Arm boards:
Removed Panther board support, which included boards/x86/panther and boards/arc/panther_ss
Refactored dts.fixup so common SoC-related fixes are in arch/<*>/soc and board dts.fixup is only used for board-specific items.
Drivers and Sensors¶
New LED PWM driver for ESP32 SoC
Fixed ESP32 I2C driver
Added I2C master, QSPI flash, and GPIO drivers for nios-II
Added PinMux, GPIO, serial drivers for LPC54114
Added PinMux, GPIO, serial, SPI, and watchdog drivers for sam0
Added APA102 and WS2821B led_strip drivers
Added native entropy driver
Moved some sensors to dts
Added AMG88xx, CCS811, and VL53L0x sensor drivers
Redefined SENSOR_CHAN_HUMIDITY in percent
Generic OpenThread support added
OpenThread support to nRF5 IEEE 802.15.4 driver added
NXP MCUX ethernet driver IPv6 multicast join/leave enhancements
Ethernet STM32 fixes
IEEE 802.15.4 Sub-GHz TI CC1200 chip support added
IEEE 802.15.4 test driver (upipe) hw filtering support added
IEEE 802.15.4 radio API enhancements
Net loopback driver fixes
Net management API event enhancements
IPv6 neighbor addition and removal can be monitored
Static IPv4 and DHCPv4 configuration enhancements
Bluetooth IPSP disconnect fix
Network buffer enhancements
ICMPv4 and ICMPv6 error checking fixes
Network interface address handling enhancements
Add routing support between network interfaces
LWM2M fixes and enhancements
Old legacy HTTP API removed
Old legacy ZoAP API removed
Net-app API fixes
BSD socket API fixes
Multiple fixes to the controller
Fixed potential connection transmission deadlock issue with the help of a dedicated fragment pool
Multiple fixes to Mesh support
Added test automation for Mesh (for tests/bluetooth/tester)
Build and Infrastructure¶
Native development environment on Microsoft Windows:
Uses CMake and Kconfiglib to avoid requiring an emulation layer
Package management support with Chocolatey for simple setup
Build time now comparable to Linux and macOS using Ninja
Libraries / Subsystems¶
New management subsystem based on the cross-RTOS MCUmgr:
Secure Firmware Updates over BLE and serial
Support for file system access and statistics
mcumgr cross-platform command-line tool
FCB (File Circular Buffer) lightweight storage layer:
Wear-leveling support for NOR flashes
Suitable for memory constrained devices
Updated Arm CMSIS from version 4.5.0 to 5.2.0
Updated stm32cube stm32l4xx from version 1.9.0 to 1.10.0
Updated stm32cube stm32f4xx from version 1.16.0 to 1.18.0
Added Atmel SAMD21 HAL
Added mcux 2.2.1 for LPC54114
Added HAL for VL53L0x sensor from STM
Imported and moved to nRFx 0.8.0 on Nordic SoCs
Added QSPI Controller HAL driver
Added MPU specific stack and userspace documentation
Improved docs for Native (POSIX) support
Docs for new samples and supported board
General documentation clarifications and improvements
Identify daily-built master-branch docs as “Latest” version
Addressed Sphinx-generated intra-page link issues
Updated doc generation tools (Doxygen, Sphinx, Breathe, Docutils)
Tests and Samples¶
Added additional tests and test improvements for user space testing