Summary
Zephyr microPlatform changes for 36
Busy portion of the Zephyr v1.14 development cycle, with some regressions needing to be weeded out. No changes to MCUboot, but the samples saw adjustments for API movement, progressive erase addition and Kconfig changes to allow for OpenThread and 802.15.4 configurations.
Linux microPlatform changes for 36
Core layer updates based on the latest OE/Yocto master changes.
Zephyr microPlatform
Highlights
- Zephyr v1.14 development snapshot with fixes for a regression and a build break
- Samples have progressive erase functionality added for nRF52840 HW
Components
MCUboot
Features
Not addressed in this update
Bugs
Not addressed in this update
Zephyr
Features
MQTT library receives socket support
A new socket-based MQTT implementation was added to Zephyr including support for TLS transport.
The existing netbuf-based implementation was marked as legacy. Part of this transition changed the net_pkt-related MQTT Kconfig options from CONFIG_MQTT_ to CONFIGMQTT_LEGACY_. This will affect out-of-tree samples.
The in-tree MQTT publisher sample and related tests were transitioned to the socket-based implementation.
CoAP library plays nice with sockets
The CoAP library was split into 2 implementations chosen via Kconfig for net_pkt and socket-friendly (flat buffers are used) support. The net_pkt support was marked as deprecated which causes all sorts of warnings during the build. Samples continuing to use net_pkt support must explicitly choose the CONFIG_COAP_NET_PKT=y config.
New CoAP samples demonstrating socket support were added to samples/net/sockets/*.
So long RPL and thanks for all the fish
RPL support has been deprecated due to the maintainer being unable to continue supporting the protocol. It's possible that another maintainer can be found in the future, in which case, the protocol will be ... un-deprecated.
CMake support for images without gaps
User can now specify a Kconfig variable CONFIG_BUILD_NO_GAP_FILL to eliminate gaps in any generated hex/bin/s19 files.
This is done to support building in a multi image context, where several image files will be merged together.
Additional SoC and board support
ST's STM32L471xG SoC is now supported in Zephyr as well as Silicon Labs EFM32PG12B. The EFM32PG-STK3402A board demonstrates the EFM32PG12B SoC.
Bugs
Kernel clock timeout race condition and regression fix
Near the end of this cycle, a patch was merged to fix a race condition in the clock timeout code. This introduced a regression for some Nordic HW. We've taken an upstream patch to fix this regression.
nRF I2C speed configuration from dts and build break fix for newlibc
Another patch near the end of the cycle added DTS configuration of I2C speed for nRF. However, the use of static_assert fails when compiling with NEWLIBC. We pulled an upstream patch to fix this issue.
Python version detection on Windows fixed
When a Windows-user had both Python2 and Python3 in their path, and Python2 was earlier, the wrong python would be detected.
To fix this until CMake 3.13 release, Zephyr now has a copy of 'FindPythonInterp' which has been fixed.
shell support still evolving
Several shell-related issues were addressed in this cycle:
- Handle RX ring buffer full case
- Add initial log level for rtt and uart backends
- fix RTT backend not returning TX amount
- Fix log messages queueing for multiple instances
- migrate tests to the new shell
hawkBit and MQTT sample application
Features
introduce ERASE_PROGRESSIVELY config
Some hardware may have very long flash erase times, and this affects the stability of many samples which perform large erases. This can be fixed by progressively erasing blocks as needed. Currently, this config is enabled for nRF52840 HW.
Bugs
Only enable Bluetooth if 802.15.4 and OpenThread aren't
Allow for OpenThread and 802.15.4 configuration by not enabling Bluetooth unconditionally.
fix MQTT config selections
The netpkt-based MQTT APIs are now deprecated and moved to MQTT_LEGACY* style config settings. Adjust our sample to match that upstream change.
LWM2M sample application
Features
introduce ERASE_PROGRESSIVELY config
Some hardware may have very long flash erase times, and this affects the stability of many samples which perform large erases. This can be fixed by progressively erasing blocks as needed. Currently, this config is enabled for nRF52840 HW.
Bugs
Only enable Bluetooth if 802.15.4 and OpenThread aren't
Allow for OpenThread and 802.15.4 configuration by not enabling Bluetooth unconditionally.
Make sure we disable BT_CTLR when 802.15.4 is used
Many of the nRF52 boards automatically enable BT_CTLR. This conflicts directly with 802.15.4, so we need to disable it explicitly in the 802.15.4 sample overlay.
Fix legacy CoAP API selection
Due to the way CoAP now works, the sample needs to explicitly select it and choose what kind of support (net_pkt or sockets).
Linux microPlatform
Highlights
- U-Boot updated to the 2018.11 release.
- U-Boot-Fslc updated to the 2018.11-based release.
- Docker Compose updated to the 1.23.2 release.
- Core layer updates based on the latest OE/Yocto master changes.
Components
Meta Freescale
Features
Layer Update
Linux-fslc updated to the 4.19-based fork. U-boot-fslc updated to the 2018.11-based fork.
Bugs
Not addressed in this update
Meta Freescale 3rdparty
Features
Layer Update
Baseboard support for PICO-Pi and PICO-Hobbit.
Bugs
Not addressed in this update
Meta Intel
Features
Layer Update
Ixgbe updated to 5.5.2.
Bugs
Not addressed in this update
Meta RISC-V
Features
Layer Update
Gdb updated to use the mainline tree. Machine support for qemuriscv32.
Bugs
Not addressed in this update
Meta Updater Layer
Features
Layer Update
Sota.conf now requires usrmerge.
Bugs
Not addressed in this update
Meta 96boards
Features
Layer Update
Ptable generation fixed for HiKey.
Bugs
Not addressed in this update
Meta Virtualization
Features
Layer Update
Lxc updated to 3.0.3. Libvirt updated to v4.9.0. Openvswitch updated to 2.10.1.
Bugs
Not addressed in this update
OpenEmbedded-Core Layer
Features
Layer Update
Gstreamer1.0 updated to 1.14.4. Libva-utils updated to 2.3.0. Openssl updated to 1.1.1a. U-Boot updated to the 2018.11 release.
Bugs
Not addressed in this update
Meta LMP Layer
Features
Layer Update
Python3-docker updated to 3.6.0. Python3-docker-compose updated to 1.23.2. Python3-docker-pycreds updated to 0.4.0. Python3-requests updated to 2.20.1.
Bugs
Not addressed in this update