MCUXpresso SDK Release Notes
Overview
The MCUXpresso SDK is a comprehensive software enablement package designed to simplify and accelerate application development with Arm Cortex-M-based devices from NXP, including its general purpose, crossover and Bluetooth-enabled MCUs. MCUXpresso SW and Tools for DSC further extends the SDK support to current 32-bit Digital Signal Controllers. The MCUXpresso SDK includes production-grade software with integrated RTOS (optional), integrated enabling software technologies (stacks and middleware), reference software, and more.
In addition to working seamlessly with the MCUXpresso IDE, the MCUXpresso SDK also supports and provides example projects for various toolchains. The Development tools chapter in the associated Release Notes provides details about toolchain support for your board. Support for the MCUXpresso Config Tools allows easy cloning of existing SDK examples and demos, allowing users to leverage the existing software examples provided by the SDK for their own projects.
Underscoring our commitment to high quality, the MCUXpresso SDK is MISRA compliant and checked with Coverity static analysis tools. For details on MCUXpresso SDK, see MCUXpresso-SDK: Software Development Kit for MCUXpresso.
MCUXpresso SDK
As part of the MCUXpresso software and tools, MCUXpresso SDK is the evolution of Kinetis SDK, includes support for LPC, DSC,PN76, and i.MX System-on-Chip (SoC). The same drivers, APIs, and middleware are still available with support for Kinetis, LPC, DSC, and i.MX silicon. The MCUXpresso SDK adds support for the MCUXpresso IDE, an Eclipse-based toolchain that works with all MCUXpresso SDKs. Easily import your SDK into the new toolchain to access to all of the available components, examples, and demos for your target silicon. In addition to the MCUXpresso IDE, support for the MCUXpresso Config Tools allows easy cloning of existing SDK examples and demos, allowing users to leverage the existing software examples provided by the SDK for their own projects.
In order to maintain compatibility with legacy Freescale code, the filenames and source code in MCUXpresso SDK containing the legacy Freescale prefix FSL has been left as is. The FSL prefix has been redefined as the NXP Foundation Software Library.
Development tools
The MCUXpresso SDK is compiled and tested with these development tools:
MCUXpresso IDE, Rev. 24.12
IAR Embedded Workbench for Arm, version is 9.60.3
Keil MDK, version is 5.41
MCUXpresso for VS Code v24.12
GCC Arm Embedded Toolchain 13.2.1
Supported development systems
This release supports board and devices listed in following table. The board and devices in bold were tested in this release.
Development boards |
MCU devices |
|---|---|
LPCXpresso55S36 |
LPC5534JBD100, LPC5534JBD64, LPC5534JHI48, |
MCUXpresso SDK release package
The MCUXpresso SDK release package content is aligned with the silicon subfamily it supports. This includes the boards, CMSIS, devices, middleware, and RTOS support.
Device support
The device folder contains the whole software enablement available for the specific System-on-Chip (SoC) subfamily. This folder includes clock-specific implementation, device register header files, device register feature header files, and the system configuration source files. Included with the standard SoC support are folders containing peripheral drivers, toolchain support, and a standard debug console. The device-specific header files provide a direct access to the microcontroller peripheral registers. The device header file provides an overall SoC memory mapped register definition. The folder also includes the feature header file for each peripheral on the microcontroller. The toolchain folder contains the startup code and linker files for each supported toolchain. The startup code efficiently transfers the code execution to the main() function.
Board support
The boards folder provides the board-specific demo applications, driver examples, and middleware examples.
Demo application and other examples
The demo applications demonstrate the usage of the peripheral drivers to achieve a system level solution. Each demo application contains a readme file that describes the operation of the demo and required setup steps. The driver examples demonstrate the capabilities of the peripheral drivers. Each example implements a common use case to help demonstrate the driver functionality.
RTOS
FreeRTOS
Real-time operating system for microcontrollers from Amazon
Middleware
CMSIS DSP Library
The MCUXpresso SDK is shipped with the standard CMSIS development pack, including the prebuilt libraries.
USB Type-C PD Stack
See the MCUXpresso SDK USB Type-C PD Stack User’s Guide (document MCUXSDKUSBPDUG) for more information
USB Host, Device, OTG Stack
See the MCUXpresso SDK USB Stack User’s Guide (document MCUXSDKUSBSUG) for more information.
TF-M
Trusted Firmware - M Library
PSA Test Suite
Arm Platform Security Architecture Test Suite
Mbed Crypto
Mbed Crypto library
Motor Control Software (ACIM, BLDC, PMSM)
Motor control examples.
Multicore
Multicore Software Development Kit
mbedTLS
mbedtls SSL/TLS library v2.x
Metering
Metering Library
Voice Seeker (no AEC)
VoiceSeeker is a multi-microphone voice control audio front-end signal processing solution. VoiceSeeker is not featuring acoustic echo cancellation (AEC).
Audio Voice components
Audio Voice components for MCU
Maestro Audio Framework for MCU
Maestro Audio Framework library for MCU
LVGL
LVGL Open Source Graphics Library
LittleFS
LittleFS filesystem stack
FreeMASTER
FreeMASTER communication driver for 32-bit platforms.
File systemFatfs
The FatFs file system is integrated with the MCUXpresso SDK and can be used to access either the SD card or the USB memory stick when the SD card driver or the USB Mass Storage Device class implementation is used.
emWin
The MCUXpresso SDK is pre-integrated with the SEGGER emWin GUI middleware. The AppWizard provides developers and designers with a flexible tool to create stunning user interface applications, without writing any code.
NXP ELS PKC
ELS PKC crypto library
Release contents
Provides an overview of the MCUXpresso SDK release package contents and locations.
Deliverable |
Location |
|---|---|
Boards |
INSTALL_DIR/boards |
Demo Applications |
INSTALL_DIR/boards/<board_name>/demo_apps |
Driver Examples |
INSTALL_DIR/boards/<board_name>/driver_examples |
eIQ examples |
INSTALL_DIR/boards/<board_name>/eiq_examples |
Board Project Template for MCUXpresso IDE NPW |
INSTALL_DIR/boards/<board_name>/project_template |
Driver, SoC header files, extension header files and feature header files, utilities |
INSTALL_DIR/devices/<device_name> |
CMSIS drivers |
INSTALL_DIR/devices/<device_name>/cmsis_drivers |
Peripheral drivers |
INSTALL_DIR/devices/<device_name>/drivers |
Toolchain linker files and startup code |
INSTALL_DIR/devices/<device_name>/<toolchain_name> |
Utilities such as debug console |
INSTALL_DIR/devices/<device_name>/utilities |
Device Project Template for MCUXpresso IDE NPW |
INSTALL_DIR/devices/<device_name>/project_template |
CMSIS Arm Cortex-M header files, DSP library source |
INSTALL_DIR/CMSIS |
Components and board device drivers |
INSTALL_DIR/components |
RTOS |
INSTALL_DIR/rtos |
Release Notes, Getting Started Document and other documents |
INSTALL_DIR/docs |
Tools such as shared cmake files |
INSTALL_DIR/tools |
Middleware |
INSTALL_DIR/middleware |
Known issues
This section lists the known issues, limitations, and/or workarounds.
LPCXpresso55S36 freertos_tzm examples
LPCXpresso55S36 freertos_tzm examples run fails on IAR v9.20.1 because of compiler issue. However, this issue is fixed on IAR v9.20.2.
LPCXpresso55S36 puf_v3 examples
LPCXpresso55S36 puf_v3 examples are not working in this release. This issue will be fixed in a future release.
MCUXpresso Config Tools v6.0.0 clone issue
The lib file path cannot be converted when MDK examples are cloned.
Not support to clone the TrustZone examples.
MCUXpresso IDE Rev. 11.5.x and GCC Arm Embedded 10.3-2021.x compatibility issue
Cryptolib (CSS PKC) inline ASM is not compatible with new compiler syntax in MCUXpresso IDE, Rev. 11.5.x and GCC Am Embedded 10.3-2021.x.
Support for new versions of mentioned compilers will be available in a future release.
TrustZone release example run fails in MCUXpresso IDE and ArmGCC 10-2020-q4-major
TrustZone release examples run fail in MCUXpresso IDE v11.4.1, this is IDE issue. This issue will be fixed in v11.5.0.
Examples hello_world_ns, secure_faults_ns, and secure_faults_trdc_ns have incorrect library path in GUI projects
When the affected examples are generated as GUI projects, the library linking the secure and non-secure worlds has an incorrect path set. This causes linking errors during project compilation.
Examples: hello_world_ns, hello_world_s, secure_faults_ns, secure_faults_s, secure_faults_trdc_ns, secure_faults_trdc_s
Affected toolchains: mdk, iar
Workaround: In the IDE project settings for the non-secure (_ns) project, find the linked library (named hello_world_s_CMSE_lib.o, or similar, depending on the example project) and replace the path to the library with <build_directory>/<secure_world_project_folder>/<IDE>/, replacing the subdirectory names with the build directory, the secure world project name, and IDE name.
Example prince_rom does not complete successfully after the Press any key to continue message
The prince_rom example hangs after prompting the user to press a button to continue program execution.
Examples: prince_rom
Affected toolchains: iar