RN-1.6.0

Release Date

April 9, 2019 (Final)

March XX, 2019 (Planned)

Important Notes

Deprecated nrf52xxx-compat package is now removed from tree.

New Features

FCB2 - second generation FCB

Redesigned FCB with smaller RAM footprint, more failure resistant and better abstraction.

Global fault management

New package (sys/fault) that is intended to handle unexpected runtime failures (hardware failures, heap allocation failures, etc) and gives application means to act on those eg retry or log.

HFXO request/release API on Nordic MCU

Allows application to request HFXO and release it when no longer needed.

Initial support for Cortex-M33

Generic bus driver

General bus driver is an abstraction for using serial buses like I2C or SPI in a generic way where bus state is managed automatically to handle access form multiple threads and to multiple devices concurrently in a seamless way. This aims to replace direct calls to HAL in drivers.

Drivers

LIS2DH12 accelerometer
SSD1673 display
nRF52 TWIM
TRNG for K64F

Enhancement/Fixes to existing features

Stats support improvements

Support for persisting stats across reboots and registering stats before sysinit.

Flash driver unification on STM32

STM32 MCUs are now based on a single flash driver for the most part, leaving just the erase operation in a MCU specific flash driver.

Mbed TLS updated to version 2.14.1

Mbed TLS 2.14.0 introduces several new features like non-blocking ECC operations, CTR-DRBG using only AES-128 cipher operations, smaller salt sizes for RSASSA-PSS signatures, enabling compliance with FIPS 186-4. It also has security fixes and other features.

Mbed TLS 2.14.1 has two security issues fixed.

https://tls.mbed.org/tech-updates/releases/mbedtls-2.14.0-2.7.7-and-2.1.16-released

https://tls.mbed.org/tech-updates/releases/mbedtls-2.14.1-2.7.8-and-2.1.17-released

nrfx updated to version 1.4.0

https://github.com/NordicSemiconductor/nrfx/releases/tag/v1.4.0

Manufacturing support improvements

Support for manufacturing image version 2.0. Devices can now be manufactured with multiple images, one image per flash device. The new manufacturing image format is documented here: https://github.com/apache/mynewt-newt/blob/master/newt/mfg/README.md

Unit test improvements

The test/testutil and test/runtest packages were redesigned to make writing unit tests easier:

For self tests (tests run with newt test ), sysinit() gets called automatically at the start of each unit test.
The APIs were simplified; extraneous functionality has been marked deprecated.
Generic reusable tasks for multi-threaded tests.

Please see the following email threads for more details:

Low mbuf sanity check

Additional sanity check. If an msys pool has a low buffer count for too long, a crash is triggered. This check is disabled by default.

FCB log bookmarks optimization

Mynewt can be configured to remember the flash location of its most recent FCB log lookups. Subsequent log walks start from the closest bookmark rather than from the start of the log.

Travis CI integration improvements

Travis CI now uses Apache RAT tool for license checks.

Concurrency support improvements

Multiple drivers and subsystems have fixes for concurrent access from multiple threads.

Newt Tool enhancements

Genericize sysinit and shutdown functionality (stage, sysdown)
Support for defining logs in syscfg.yml (logcfg)
new target commands: sysinit, sysdown, dump
support for merging conflicting dependency conditionals
required Go version bumped to 1.10
new packages: flashmap, imgprod, manifest
Microsoft Windows support fixes
Support for configuring path escaping
Support for choice syscfg option - this allows to specify allowed values for specified sycfg config option
Support for range syscfg option - this allows to specify valid range (eg 1..5) for config option value

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