v1.7.99

Zephyr v1.7.99

v1.7.0-rc1

Zephyr v1.7.0-rc1

v1.6.99

xx

Zephyr 1.6.0

We are pleased to announce the release of Zephyr kernel version 1.6.0.
This release introduces the unified Kernel replacing the separate nano-
and micro-kernels and simplifying the overall Zephyr architecture and
programming interfaces. Support for the ARM Cortex-M0/M0+ family was
added and board support for Cortex-M was expanded. Additionally, this
release adds many improvements for documentation, build infrastructure,
and testing.

Major enhancements included with the release:

• Introduced the Unified Kernel; the nano and micro kernel
  were removed.
• The legacy API is still supported but deprecated.
• Legacy tests and samples were moved to tests/legacy
  and samples/legacy.
• Unified kernel documentation was added and legacy
  nanokernel/microkernel documentation was removed.
• Added support for several ARM Cortex-M boards
• Added support for USB mass storage and access to the filesystem.
• Added native Bluetooth Controller support. Currently nRF51 & nRF52
  are supported.

A detailed list of changes since v1.5.0 by component follows:

Kernel

• Introduced the unified kernel.
• Removed deprecated Tasks IRQs.
• Removed deprecated dynamic interrupt API.
• Added DLIST to operate in all elements of a doubly-linked list.
• SLIST: Added sys_slist_get() to fetch and remove the head, also
  Added append_list and merge_slist.
• Added nano_work_pending to check if it is pending execution.
• Unified: Added support for k_malloc and k_free.
• Renamed kernel objects event to alert and memory map to memory slab.
• Changed memory pool, memory maps, message queues and event
  handling APIs.

Architectures

• ARC: Removed CONFIG_TIMER0_CLOCK_FREQ.
• ARC: Unified linker scripts.
• ARC: Removed dynamic interrupts.
• ARM: Added choice to use floating point ABI.
• ARM: Added NXP Kinetis kconfig options to configure clocks.
• ARM: Removed dynamic interrupts and exceptions.
• ARM: Atmel: Added constants and structures for watchdog registers.
• ARM: Added support for ARM Cortex-M0/M0+.
• x86: Removed dynamic interrupts and exceptions.
• x86: Declared internal API for interrupt controllers.
• x86: Changed IRQ controller to return -1 if cannot determine
  source vector.
• x86: Grouped Quark SoC's under intel_quark family.
• x86: Optimized and simplified IRQ and exception stubs.

Boards

• Renamed board Quark SE devboard to Quark SE C1000 devboard.
• Renamed board Quark SE SSS devboard to Quark SE C1000 SS devboard.
• Quark SE C1000: Disabled IPM and enabled UART0 on the
  Sensor Subsystem.
• Removed basic_cortex_m3 and basic_minuteia boards.
• Arduino 101: Removed backup/restore scripts. To restore original
  bootloader use flashpack utility instead.
• Renamed nRF52 Nitrogen to 96Boards Nitrogen.
• Added ARM LTD Beetle SoC and V2M Beetle board.
• Added Texas Instruments CC3200 LaunchXL support.
• Added support for Nordic Semiconductor nRF51822.
• Added support for NXP Hexiwear board.

Drivers and Sensors

• SPI: Fixed typos in SPI port numbers.
• Pinmux: Removed Quark dev unused file.
• I2C: Added KSDK shim driver.
• Ethernet: Added KSDK shim driver.
• Flash: Added KSDK shim driver
• I2C: Changed config parameters to SoC specific.
• QMSI: Implemented suspend and resume functions QMSI shim drivers
• Added HP206C sensor.
• Changed config_info pointers to const.
• Added support for SoCWatch driver.
• Added FXOS8700 accelerometer / magnetometer sensor driver.

Networking

• Minor fixes to uIP networking stack (This will be deprecated in 1.7)

Bluetooth

• Added native Bluetooth Controller support. Currently nRF51 & nRF52
  are supported.
• New location for Controller & Host implementations:
  subsys/bluetooth/
• Added raw HCI API to enable physical HCI transport for a
  Controller-only build.
• Added sample raw HCI apps for USB and UART.
• Added cross-transport pairing support for the Security
  Manager Protocol.
• Added RFCOMM support (for Bluetooth Classic)
• Added basic persistent storage support (filesystem-backed)
• Renamed bt_driver API to bt_hci_driver, in anticipation of
  Bluetooth radio drivers.

Build Infrastructure

• Makefile: Changed outdir into board-specific directory to avoid
  build collisions.
• Makefile: Changed to use HOST_OS environment variable.
• Makefile: Added support for third party build systems.
• Sanity: Added support to filter using environment variables.
• Sanity: Added support for multiple toolchains.
• Sanity: Added ISSM and ARM GCC embedded toolchains to the
  supported toolchains.
• Sanity: Added extra arguments to be passed to the build.
• Sanity: Removed linker VMA/LMA offset check.
• Sysgen: Added --kernel_type argument.
• Modified build infrastructure to support unified kernel.
• SDK: Zephyr: Added check for minimum required version.
• Imported get_maintainer.pl from Linux kernel.

Libraries

• libc: Added subset of standard types in inttypes.h.
• libc: Added support for 'z' length specifier.
• libc: Removed stddef.h which is provided by the compiler.
• libc: printf: Improved code for printing.
• printk: Added support for modifiers.
• Added CoAP implementation for Zephyr.
• File system: Added API to grow or shrink a file.
• File system: Added API to get volume statistics.
• File system: Added API to flush cache of an opened file.

HALs

• QMSI: Updated to version 1.3.1.
• HAL: Imported CC3200 SDK.
• Imported Nordic MDK nRF51 files.
• Imported Kinetis SDK Ethernet phy driver.
• Imported SDK RNGA driver.

Documentation

• Drivers: Improved Zephyr Driver model.
• Updated device power management API.
• Unified Kernel primer.
• Moved supported board information to the
  wiki.zephyrproject.org site.
• Revised documentation for Kernel Event logger and Timing.

Test and Samples

• Fixed incorrect printk usage.
• Removed test for dynamic exceptions.
• Added USB sample.
• Added tests and samples for CoAP client and server.
• Added philosophers unified sample.
• Removed printf/printk wrappers.
• Added Unified kernel API samples.
• Imported tinycrypt test cases for CTR, ECC DSA and ECC DH algorithm.

Deprecations

• Deprecated microkernel and nanokernel APIs.
• Removed dynamic IRQs and exceptions.
• Removed Tasks IRQs.

JIRA Related Items

• ZEP-308 - Build System cleanup and Kernel / Application build
  separation
• ZEP-334 - Unified Kernel
• ZEP-766 - USB Mass Storage access to internal filesystem
• ZEP-1090 - CPU x86 save/restore using new QMSI bootloader flow
• ZEP-1173 - Add support for bonding remove
• ZEP-48 - define API for interrupt controllers
• ZEP-181 - Persistent storage APIs
• ZEP-233 - Support USB mass storage device class
• ZEP-237 - Support pre-built host tools
• ZEP-240 - printk/printf usage in samples
• ZEP-248 - Add a BOARD/SOC porting guide
• ZEP-342 - USB DFU
• ZEP-451 - Quark SE output by default redirected to IPM
• ZEP-521 - ARM - add choice to floating point ABI selection
• ZEP-546 - UART interrupts not triggered on ARC
• ZEP-584 - warn user if SDK is out of date
• ZEP-592 - Sanitycheck support for multiple toolchains
• ZEP-605 - SMP over BR/EDR
• ZEP-614 - Port tinycrypt 2.0 test cases to Zephyr
• ZEP-622 - Add FS API to truncate/shrink a file
• ZEP-627 - Port Trickle support from Contiki into current stack
• ZEP-635 - Add FS API to grow a file
• ZEP-636 - Add FS API to get volume total and free space
• ZEP-640 - Remove dynamic IRQs/exceptions from Zephyr
• ZEP-653 - QMSI shim driver: Watchdog: Implement suspend and resume
  callbacks
• ZEP-654 - QMSI shim driver: I2C: Implement suspend and resume
  callbacks
• ZEP-657 - QMSI shim driver: AONPT: Implement suspend and resume
  callbacks
• ZEP-661 - QMSI shim driver: SPI: Implement suspend and resume
  callbacks
• ZEP-688 - unify duplicated sections of arch linker scripts
• ZEP-715 - Add K64F clock configurations
• ZEP-716 - Add Hexiwear board support
• ZEP-717 - Add ksdk I2C shim driver
• ZEP-718 - Add ksdk ethernet shim driver
• ZEP-721 - Add FXOS8700 accelerometer/magnetometer sensor driver
• ZEP-737 - Update host tools from upstream: fixdep.c
• ZEP-740 - PWM API: Check if 'flags' argument is really required
• ZEP-745 - Revisit design of PWM Driver API
• ZEP-750 - Arduino 101 board should support one configuration using
  original bootloader
• ZEP-758 - Rename Quark SE Devboard to its official name: Quark SE
  C1000
• ZEP-767 - Add FS API to flush cache of an open file
• ZEP-775 - Enable USB CDC by default on Arduino 101 and redirect
  serial to USB
• ZEP-783 - ARM Cortex-M0/M0+ support
• ZEP-784 - Add support for Nordic Semiconductor nRF51822 SoC
• ZEP-850 - remove obsolete boards basic_minuteia and
  basic_cortex_m3
• ZEP-906 - [unified] Add scheduler time slicing support
• ZEP-907 - Test memory pool support (with mailboxes)
• ZEP-908 - Add task offload to fiber support
• ZEP-909 - Adapt tickless idle + power management for ARM
• ZEP-910 - Adapt tickless idle for x86
• ZEP-912 - Finish renaming kernel object types
• ZEP-916 - Eliminate kernel object API anomalies
• ZEP-920 - Investigate malloc/free support
• ZEP-921 - Miscellaneous documentation work
• ZEP-922 - Revise documentation for Kernel Event Logger
• ZEP-923 - Revise documentation for Timing
• ZEP-924 - Revise documentation for Interrupts
• ZEP-925 - API changes to message ...

v1.6.0-rc4

Zephyr v1.6.0-rc4

v1.6.0-rc3

Zephyr v1.6.0-rc3

Zephyr 1.5.0

The Zephyr Engineering team is glad to announce the release of Zephyr
Kernel 1.5.0. This is the first release to follow the 3-month release
cadence. This release includes numerous fixes and support for major
features. Additional changes include support for new drivers, sensors,
and boards.

Major enhancements included with the release:

• TCP Support
• Integration of the Paho MQTT Library support with QoS
• Flash Filesystem Support
• Integration of the mbedTLS library for encryption
• Improved BR/EDR support (for L2CAP, in particular).
• Support for the Altera Nios II/f soft CPU architecture

A detailed list of changes since v1.4.0 by component follows:

Kernel

• Added nano_fifo_put_list() APIs, which allows queuing a list of
  elements on a nanokernel FIFO.
• Removed unused memory pool structure field.
• Enhanced memory pool code.

Architectures

• ARM: Updated to include floating point registers.

Altera Nios II/f soft CPU architecture support

:   -   Internal Interrupt Controller
    -   Avalon Timer
    -   Avalon JTAG UART (polling mode) as default for
        qemu-system-nios2, and 16550 UART as default for
        Altera MAX10.

Boards

• Added Nios II QEMU board.
• Added configuration for Altera MAX10 FPGA.

Drivers and Sensors

• Sensors: Added driver for I2C HMC5883L magnetometer.
• Sensors: Added driver for I2C TMP112 temperature sensor.
• Sensors: Added driver for MAX44009 light sensor.
• Sensors: Added driver for LPS25HB.
• HAL: Updated QMSI drivers to 1.1
• Added DMA QMSI shim driver.
• Added Quark SE USB device controller driver.
• Added suspend/resume to QMSI drivers.
• Added Guard for critical sections of the QMSI drivers.
• Added Zephyr File System API.
• Added driver for ENC28J60 Ethernet SPI module.

Networking

• TCP Support
• Connection handling fixes in IP stack.
• Allow sending zero length user data IP packet.

Network Buffers

• New net_buf_simple API for light-weight on-stack (or static)
  buffers where a net_buf (and its associated pool) is overkill. The
  net_buf API now uses as an internal implementation
  detail net_buf_simple.
• Add support for network buffer fragmentation.
• Add more net_buf big endian helpers.

Bluetooth

• Multiple fixes & improvements to the nble driver.
• New API for dealing with Out of Band data (like the local address).
• Various smaller fixes & improvements in many places.

Build and Infrastructure

• Added “qemugdb” target to start a local GDB on port 1234.
• Added script to filter known issues in the build output.
• Sanity: Added “-R” option to build all test with assertions.

Libraries

• File system: Imported Open Source FAT FS 0.12a code.
• Encryption: Imported mbedTLS library.
• Encryption: Updated tinycrypt library to 2.0.

Documentation

• Fixed all the documentations warnings during build.
• Fixed several typos, trademarks and grammar.
• Moved all the boards documentation to the wiki.
• Moved Code Contribution documentation to the wiki.
• Added package “ncurses” to the list of requirements.
• Updated Mac OS X instructions.

Test and Samples

• Samples: Replaced old debug macro to use new SYS_LOG macro.
• Added TMP112 sensor application.
• Added Quark SE power management sample application.
• Added DMA memory to memory transfer sample.
• Added sample for MAX44009 light sensor.
• Added MQTT publisher and subscriber samples.
• Added mbedTLS sample client.

JIRA Related Items

Stories

• ZEP-49 - x86: unify separate SysV and IAMCU code
• ZEP-55 - enable nanokernel test_context on ARC
• ZEP-58 - investigate use of -fomit-frame-pointer
• ZEP-60 - irq priorities should be rebased to safe values
• ZEP-69 - Extend PWM API to use arbitrary unit of time
• ZEP-203 - clean up APIs for static exceptions
• ZEP-225 - Add kernel API to put SoC to Deep Sleep (DS) State
• ZEP-226 - Update sample PMA to support device suspend/resume
• ZEP-227 - Add kernel API to put SoC to Low Power State (LPS)
• ZEP-228 - File system interface designed after POSIX
• ZEP-232 - Support for USB communications device class ACM
• ZEP-234 - provide a direct memory access (DMA) interface
• ZEP-243 - Create Wiki Structure for Boards
• ZEP-249 - nios2: Enable altera_max10 board in sanitycheck runs for
  nanokernel
• ZEP-254 - nios2: define NANO_ESF struct and populate _default_esf
• ZEP-270 - nios2: determine optimal value for PERFOPT_ALIGN
• ZEP-271 - nios2: enable microkernel & test cases
• ZEP-272 - nios2: add global pointer support
• ZEP-273 - nios2: implement flashing scripts
• ZEP-274 - nios2: document GDB debugging procedure
• ZEP-275 - nios2: scope support for instruction/data caches
• ZEP-279 - nios2: demonstrate nanokernel hello world
• ZEP-285 - FAT filesystem support on top of SPI Flash
• ZEP-289 - nios2: implement kernel_event_logger
• ZEP-291 - Driver for the ENC28J60 ethernet device
• ZEP-304 - Investigate QEMU support for Nios II
• ZEP-327 - Encryption Libraries needed for Thread support
• ZEP-340 - TLS/SSL
• ZEP-354 - Provide a DMA driver for Quark SE core
• ZEP-356 - DMA device support
• ZEP-357 - Support for the MAX44009 sensor
• ZEP-358 - Add support for TMP112 sensor
• ZEP-412 - Add driver API reentrancy support to RTC driver for LMT
• ZEP-414 - Add driver API reentrancy support to flash driver
• ZEP-415 - aaU, I want to use the NATS messaging protocol to send
  sensor data to the cloud
• ZEP-416 - MQTT client capability: QoS1, QoS2
• ZEP-424 - AON counter driver needs to add driver API reentrancy
  support
• ZEP-430 - Add driver API reentrancy support to PWM shim driver
• ZEP-434 - Driver for HMC5883L magnetometer
• ZEP-440 - Add driver API reentrancy support to WDT shim driver
• ZEP-441 - Add driver API reentrancy support to GPIO shim drivers
• ZEP-489 - nios2: handle unimplemented multiply/divide instructions
• ZEP-500 - Domain Name System client library
• ZEP-506 - nios2: support baremetal boot and XIP on Altera MAX10
• ZEP-511 - Add Deep Sleep support in PMA
• ZEP-512 - Add suspend/resume support for some core devices to enable
  Deep Sleep support in PMA
• ZEP-541 - Integrate QMSI releases to Zephyr
• ZEP-567 - netz sample code
• ZEP-568 - MQTT QoS sample app
• ZEP-573 - IoT applications must use netz API
• ZEP-590 - Update Zephyr's tinycrypt to version 2.0
• ZEP-643 - Add file system API documentation
• ZEP-650 - Quark SE: Implement PM reference application
• ZEP-652 - QMSI shim driver: RTC: Implement suspend and resume
  callbacks
• ZEP-655 - QMSI shim driver: PWM: Implement suspend and resume
  callbacks
• ZEP-658 - QMSI shim driver: GPIO: Implement suspend and resume
  callbacks
• ZEP-659 - QMSI shim driver: UART: Implement suspend and resume
  callbacks
• ZEP-662 - QMSI shim driver: Pinmux: Implement suspend and resume
  callbacks

Epic

• ZEP-278 - Enable Nios II CPU on Altera Max10
• ZEP-284 - Flash Filesystem Support
• ZEP-305 - Device Suspend / Resume infrastructure
• ZEP-306 - PWM Enabling
• ZEP-406 - Drivers shall be re-entrant

Bug

• ZEP-68 - Final image contains duplicates of some routines
• ZEP-156 - PWM Set Value API behaves incorrectly
• ZEP-158 - PWM Set Duty Cycle API does not work
• ZEP-180 - make menuconfig user provided options are ignored at
  building time
• ZEP-187 - BLE APIs are not documented
• ZEP-218 - [drivers/nble][PTS_TEST] Fix responding with the
  wrong error codes to the Prepare Write Request
• ZEP-221 - [drivers/nble][PTS_TEST] Implement Execute Write
  Request handler
• ZEP-369 - When building out of the tree, application object files
  are not placed into outdir
• ZEP-379 - _k_command_stack may be improperly initialized when
  debugging
• ZEP-384 - D2000 hangs after I2C communication with BMC150 sensor
• ZEP-401 - PWM driver turns off pin if off time is 0 in set_values
• ZEP-423 - Quark D2000 CRB documentation should include instructions
  to flash bootloader
• ZEP-435 - Ethernet/IPv4/TCP: ip_buf_appdatalen returns wrong
  values
• ZEP-456 - doc: IDT security section dissapeared
• ZEP-457 - doc: contribute/doxygen/typedefs.rst: examples files are
  broken
• ZEP-459 - doc: kconfig reference entries in HTML are lacking a title
• ZEP-460 - doc: document parameters of DEVICE* macros
• ZEP-461 - Release 1.4.0 has broken the BMI160 sample as well as an
  application based on it
• ZEP-463 - Getting started guide "next" link doesn't take you to
  "Checking Out the Source Code Anonymously" section
• ZEP-469 - Ethernet/IPv4/TCP: net_receive & net_reply in server
  mode
• ZEP-474 - ND: Neighbor cache is not getting cleared
• ZEP-475 - Issue with timer callback routine: Condition checked is
  incorrect
• ZEP-478 - Linux setup docs missing step to install curses
  development package for Fedora
• ZEP-497 - Ethernet/IPv4/TCP: failed to get free buffer
• ZEP-499 - TMP007 driver returns invalid values for negative
  temperature
• ZEP-514 - memory corruption in microkernel memory pool defrag()
• ZEP-516 - Ubuntu setup instructions missing 'upgrade' step
• ZEP-518 - SPI not working on Arduino101
• ZEP-522 - TCP/client-mode: disconnect
• ZEP-523 - FIFOs defined by DEFINE_FIFO macro use the same memory
  buffer
• ZEP-525 - srctree changes are breaking applications
• ZEP-526 - build "kernel event logger" sample app failed for
  ...