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MCUXpresso IDE

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First Release v1.00 : 22nd February 2019


Please find attached a document detailing how to create, build and debug LPC55xx multicore applications using the LPC55S69-EVK LPCXpresso55S69 Development Board with MCUXpresso IDE v10.3.1 and MCUXpresso SDK v2.5.0



MCUXpresso IDE Support

We are pleased to announce that MCUXpresso IDE v10.3.1 (build 2233) is now available.


This is a maintenance release that builds upon the previous MCUXpresso IDE v10.3.0 release, and we recommend that all existing users download and install this new version.


To download the installers for all platforms, please login to our download site via:



MCUXpresso IDE v10.3.1 will be the last release to be compatible with both 32-bit and 64-bit versions of Windows. Future releases will only be compatible with 64-bit versions of Windows. (The MacOS and Ubuntu versions of MCUXpresso IDE are already 64-bit only.)


Summary of Changes - version 10.3.1 - February 2019

  • Improvements to support for i.MX RT600 MCUs
  • Improvements to support for LPC5500 MCUs
  • Added managed linker script and LinkServer debug support for i.MX RT1015
  • Fixed issue with permissions within IDE installation directory on MacOS and Ubuntu which could cause failure of FreeRTOS TAD plugin and also prevent installation and update of third party plugins (e.g. from Eclipse Marketplace)
    Managed linker script mechanism now includes libgcc.a in the list of libraries to be linked against when using Redlib
    (to resolve any runtime support functions generated by compiler that have no specific implementation in Redlib)
  • Improved error checking in Memory Configuration Editor
  • Managed Linker Script settings in Project Properties now more thoroughly checks alignment / region size when calculating "Default" stack size - preventing potential issues with incorrect stack alignment
  • Fixed issue with handling of "preinclude file" option when importing "Connectivity" example projects available in SDKs for certain MCUs (such as Kinetis KW devices)
  • Fixed issue with the SDK project wizards such that new projects could, in some circumstances, inherit memory configuration information from a previous instance of the project wizard
  • Fixed issue when importing SDK example projects that could cause projects to lose part of their configuration
  • Fixed issue with "Select All" option failing when trying to add SDK Middleware components to a project with some SDKs
  • Improved handling of incorrect SDKs
  • Fixed issue with Project Properties right-click menu which could cause it to fail to display for non-SDK projects
  • Various fixes to SDK Editor / Creator
  • Binary Utilities options are now disabled in certain cases for "CDT virtual nodes" in the Project Explorer view (when such nodes are pointing to "files" that don't actually exist in the file system)
  • Fixed issue in Fault Views which could cause certain fault registers to be displayed when they were not valid for the
    current fault
  • Fixed issue with the display of registers in their "natural" format in the Register view. This in particular means that floating point registers will now be displayed in floating point format by default instead of hex
  • Fixed issue with display of Registers View when the target is running
  • Fixed issue with the handling of Peripherals View for SDK-based multicore MCUs
  • Fixed issue with "Resume All" button being enabled even when all debug sessions are already running
  • Enhanced Global Variables view to allow live variables update to be started/stopped whilst target is paused
  • Fixed issue with LinkServer debug which could cause connection failures when debugging MCUs (such as LPC8xx) which use the "-vc" debug option by default
  • Fixed issue with LinkServer flash driver handling causing unnecessary memory accesses to be made, which could cause flash programming failures with some very RAM limited MCUs
  • Fixed issue with LinkServer related to debugging applications in RAM, which could prevent correct setting of breakpoints
  • Fixed issue with LinkServer attaching to projects running in RAM
  • Improved LinkServer debug connections to RT10xx devices to avoid occasional "wire ack" fault that could occur when resetting MCU at the end of flash programming
  • LinkServer debug connections now default to using the same Peripheral View service as used by SEGGER and P&E debug connections. The LinkServer native service can currently be reenabled via a preference, though this functionality will be removed in a future release
  • Fixed issue that could cause LinkServer debug to occasionally slow down
  • Improved LinkServer command line programming stability
  • IDE now displays double precision registers in Register View with SEGGER and P&E Micro debug connections by default (where available on MCU)
  • Upgraded to a later version of the P&E Micro plugin (v3.9.9)
  • Upgraded to a later version of the SEGGER software (v6.42b)

The following article is a step-by-step tutorial how to use the NXP MCUXpresso SDK & IDE to create a SD card bootable image on i.MX RT. It features the i.MX RT1050-EVK(B) but is with minor changes applicable to any other i.MX RT device:

Tutorial: Booting the NXP i.MX RT from Micro SD Card

  • Creating a project running in RAM
  • Generating S19 file
  • Running application in RAM
  • Creating SD card boot image with Flashloader and elftosb
  • Loading image to SD card with MfgTool
  • Booting i.MX from SD card image


I hope you find it useful,


Updated v1.02  1st March 2019


Please find attached a document detailing various features related to using the iMXRT1060-EVK evaluation board with MCUXpresso IDE v10.3.x and SDK v2.5, including details of how to enable SWO trace on this MCU.


Updated to include a section on the MIMXRT1064 EVK.


Also attached are:


  • an example project demonstrating how SWO trace features may be enabled
  • an updated LinkServer (CMSIS-DAP) flash driver for the iMXRT1064 containing a fix for Mass Erase




MCUXpresso IDE Support

We are pleased to announce that MCUXpresso IDE v10.3.0 (build 2200) is now available.


This is a major new version of the IDE, and contains many new features and enhancements over the previous v10.2.1 and earlier releases. The attached presentation, recommended viewing for all users (new or experienced), provides an overview of many of the major changes, as well as things to be aware of when upgrading from an earlier release:



To download the installers for all platforms, please login to our download site via: 


Additional information can be found in the updated User Guide and other documentation, which can be accessed from the built in help system available via IDE's Help menu and in PDF form from within the installation directory or downloaded from:


Summary of Changes - version 10.3.0 - December 2018


  • Major restructure of product installation structure to allow future minor product updates to be potentially delivered via Eclipse Software Update mechanism
  • Upgraded supplied GNU ARM Embedded Toolchain to GCC7 2018q2-update
  • Added support for MCUXpresso SDK v2.5.0
  • Upgraded integrated version of MCUXpresso Config Tools to v5
  • IDE now provides a workspace preference to allow the location of the SDK Drag&Drop installation folder to be changed. However by default a central 'mcuxpresso' folder is still used. Current install location label displayed in the "Installed SDKs" View
  • IDE now generates part support information from installed SDKs into the workspace rather than into a central 'mcuxpresso' folder, improving behavior when multiple IDE instances are being used
  • New "Faults" view compatible with LinkServer, P&E and SEGGER debug connections implemented (replacing the previous "vectpc" pseudo-register in Registers view for LinkServer debug connections). This view provides a decoding of the Cortex-M cpu's fault registers and stack backtrace to assist the user in tracking down the cause of hard faults and other processor exceptions
  • New implementation of the "Registers" View, allowing categorisation of certain registers groups, as well as providing
    access to additional CPU registers for P&E and SEGGER debug connections
  • SWO Trace now supported via SEGGER J-Link and P&E Micro debug probes (in addition to LinkServer LPC-Link2 debug connections). 
  • NXP LPC-LINK2 CMSIS-DAP firmware soft-loaded by IDE updated to v5.224, providing noticeable performance improvements over previous v5.183. For standard (debug+SWO) firmware, flash programming speed increases of typically ~10% along with increases in SWO trace speed. For Non-bridged firmware (debug only), flash programming speed increases of typically ~20%
  • Project Explorer View enhanced to emphasise currently selected project, along with displaying its current build configuration
  • Editing Memory Configuration for projects is now done in place rather than spawning separate editing dialog
  • IDE now only creates a debug launch configuration for the current build configuration when a project is debugged (if one does not yet exist), rather than for all build configurations
  • New SDK creator wizard to create a "board SDK" from an existing project (with settings modified using the MCUXpresso Config Tools). This "board SDK" can then be used to create new projects for custom boards
  • Package associated with an SDK project can now be modified via the MCU entry of the project's "Project Settings" virtual nodes in the Project Explorer view
  • IDE now supports additional build configurations being specified in SDK example definition files
  • Added Linux Tools Libhover to preinstalled plugins (providing tooltips for standard C library calls)
  • Upgraded to a later version of the P&E Micro plugin (v3.8.3)
  • Upgraded to a later version of the SEGGER software (v6.40)
  • Updated FreeRTOS TAD plugin to v1.0.8
    • Support heap using Newlib (identified as heap #6)
    • Support FreeRTOS 10.1.1
    • Fix highlight of free section in Heap Usage view
  • Windows version of IDE now uses "busybox" (from "GNU MCU Eclipse Windows Build Tools" project) , to provide a Unix-like layer for GCC tools to run under, rather than the "msys" package used by previous releases
  • Modified order of entries added to local shell's path when building projects under Windows - providing small improvement in build speeds
  • Additional LinkServer flash drivers provided for RT1060 and RT1064
  • Preliminary LinkServer support for LPC55xx devices
  • Added basic support for Cortex-M33 secure projects
  • Added support for Cortex-M33 No DSP variant
  • LinkServer debug executable now allows probe selection by serial number (mainly intended for command line flash programming operations)
  • Redlib updates
    • Fixed snprintf() / vsnprintf() to prevent hard fault when NULL buffer passed
    • Fixed issue with number sequences generated by rand()
  • Made ordering of C Libraries in drop down lists consistant across various menus
  • Allow user to only choose valid FPU settings in the Architecture tab of Project Settings
  • "Quick Settings" option now allows reconfiguring multiple projects (where projects have compatible settings)
  • Fixed issue that could cause a project to lose modifications to its memory configuration
  • Grouped SDK actions under new "SDK Management" entry of Project Explorer popup menu
  • Fixed issue that could cause a project's list of associated SDK components to be lost
  • Fixed issue with sorting of boards in SDK project wizards not taking any current selection into account
  • Fixed issue with default peripherals.c/h files being automatically (and incorrectly) added during SDK example import
  • Fixed issue with Import of >1 SDK examples sometimes failing to correctly pickup some IDE default settings
  • Fixed issue with SDK Project Component Manager when adding components with conditional sources to an existing project
  • Improved handling of C library family setting when importing multiple SDK examples
  • Fixed issue that could cause the IDE to block if requested to change the SDK associated with a project
  • Fixed issue with SDKs become unusable after cancelling an unzipping operation
  • Fixed issue with SDK New Project Wizard when no board selected which could cause wrong header files to be generated
  • Fixed issue with SDK New Project Wizard such that main.c file always included the BOARD_InitDebugConsole() call even when the debug console component is not selected
  • Fixed issue with handling of derived peripherals containing '_' in name
  • Implemented partial workaround for underlying Eclipse issue that can cause a "Target Not Available" dialog if starting a debug session with the Disassembly view open
  • Fixed issue with SEGGER launch configurations failing to reset MCU after programming flash
  • Fixed issue with launch configurations created using standard Eclipse functionality, as opposed to automatically created using MCUXpresso IDE
  • Enhanced handling of additional bespoke launch configurations
  • Fixed issue with sorting in Probe selection dialog
  • Fixed long standing issue with LinkServer launch configuration tabs changing order every time the launch config editor is open
  • Fixed issue that could cause the launch configuration selection dialog to be displayed twice in some circumstances
  • Fixed longstanding issue with that prevented Instruction Trace and SWO Trace being used together
  • Fixed issue with Instruction Trace Config view not correctly loading saved configuration files
  • GUI Flash Tool will now automatically select the highlighted binary file from Project Explorer View

First Release


Please find attached a document detailing various features related to using the iMXRT1020-EVK evaluation board with MCUXpresso IDE v10.2.1 and SDK v2.4.




MCUXpresso IDE Support

We are pleased to announce that MCUXpresso IDE v10.2.1 (build 795) is now available.


This is a maintenance release that builds upon the previous MCUXpresso IDE v10.2.0 release, and we recommend that all existing users download and install this new version.


To download the installers for all platforms, please login to our download site via:

Summary of Changes - version 10.2.1 - July 2018

  • Fixed issue in New Project Wizard when switching between a board and a generic device (or vice versa)
  • Fixed issue with floating point settings when importing SDK example projects for Cortex-M7 based MCUs
  • Fixed issue with notification of missing dependencies when Add/Remove Component used with SDK v2.4 packages
  • Improved options to handle part selection when project importing in cases where associated SDK is not installed
  • Fixed issue which could prevent a renamed project from being debugged in some circumstances
  • Resolved various issues with user interface of GUI Flash Tool
  • Resolved issue with workspace preferences when trying to configure the Debug perspective to be used for debugging projects (instead of the default Develop perspective)
  • Improved reliability of LinkServer debug sessions via enhancements to the way the IDE connects to the server process, as well as enhancements in the server itself
  • Improved the IDE's display of the LinkServer "RedlinkServer" console
  • Fixed issue with LinkServer "Disconnect behavior" always using "cont", even when configured to use another disconnect option
  • Option to terminate debug session added to IDE's LinkServer error dialog
  • Fixed issue with handling of number formats for entries in Global Variables view
  • Live Global Variable graphing no longer inserts spurious zero entry when target paused
  • Fixed issue with enumerated bitfield handling in the Peripheral Register viewer
  • Fixed issue with display of PriMask, BasePri, FaultMask and Control special registers in Registers view for LinkServer debug sessions. This change also now allows these registers to be edited
  • Fixed issue with LinkServer erroneously setting VTOR in some circumstances after programming flash
  • Fixed issue with zoom function on SWO Interrupt Trace view
  • Fixed issue with Instruction Trace view, which could prevent profile information being displayed in source and disassembly views in some circumstances
  • Fixed issue with Instruction Trace Config view, which prevented a modified configuration being saved
  • Preliminary LinkServer SPI flash drivers that self-configure using JEDEC SFDP information read from the device are now included for i.MX RT1020 (QSPI) and RT1050 (QSPI and Hyperflash)
  • Example device specific flash driver projects provided for i.MX RT1020 and RT1050. These can be used as a starting point for writing flash drivers for custom boards fitted with flash devices that do not support SFDP information
  • Updated FreeRTOS TAD plugin to v1.0.6
    • Fixed issues with Pause button
    • Added more verbose log for determining heap type
    • Removed problematic heap identification from available variables
  • Fixed issue which prevented the P&E Micro plugin updating from the P&E update server
  • Upgraded to a later version of the P&E Micro plugin (v3.5.6)
  • Upgraded to a later version of the SEGGER software (v6.32h)

We are pleased to announce that MCUXpresso IDE v10.2.0 (build 759) is now available.


This is a major new version of the IDE, and contains many new features and enhancements over the previous v10.0 and v10.1 releases. The attached presentation, recommended viewing for all users (new or experienced),  provides an overview of many of the major changes, as well as things to be aware of when upgrading from an earlier release:



To download the installers for all platforms, please login to our download site via: 


Also note that the MCUXpresso IDE User Guide has been further extended for this release, for both new and improved features, and we recommend that even experienced users take a little time to go through it. The User Guide and other documentation can be accessed from the built in help system available via IDE's Help menu and in PDF form from within the installation directory or downloaded from:


Summary of Changes - version 10.2.0 - May 2018

  • Upgraded Eclipse to Oxygen.3a / CDT 9.4.3. Amongst other improvements, this typically delivers a noticeable increase in build speeds
  • Upgraded supplied GNU ARM Embedded Toolchain to GCC7(2017q4-major)
  • Upgraded integrated version of MCUXpresso Config Tools to v4.1
  • Pro Edition discontinued. All IDE functionality now enabled out of the box without any further activation or purchase
  • Mac OS X version of product now fully 64-bit
  • Quickstart Panel redesigned and now provides direct access to various operations for specific debug solutions
  • Added support for project Virtual Nodes in Project Explorer View, providing improved access to project information and settings
  • Added support for MCUXpresso SDK v2.4.0
  • Improved handling of relationship between a project and its associated SDK package, for instance allowing user to select an appropriate, alternate installed SDK package if the originally associated SDK is no longer installed
  • Fixed issue with handling of non-Latin characters in username when creating SDK support folders
  • SDK-based projects can now be converted to have ‘local SDK part support’, allowing improved project sharing (such projects no longer require the full associated SDK to be installed in order to build/debug)
  • SDK Documentation now accessible from within Installed SDKs View
  • Enhanced accessibility of SDK Manifest information directly from within IDE Views
  • Naming scheme used when importing SDK example projects simplified, leading to shorter, more legible filenames (also helping to avoid filename length issues when building projects on Windows)
  • Include paths added on SDK project creation are now created project relative (reducing the size of the -I options passed to gcc), except in the case where "copy sources" is deselected.
  • Projects can now be imported into a Workspace by dragging and dropping a folder (or zip) containing one or more projects into the Project Explorer View
  • Projects can also be exported by dragging from the Project Explorer View directly to an OS filer window
  • Added support for refreshing projects to pull in files from a newer SDK than the one they were created with
  • Enhanced display of SDK components in dialogs such as the New Project Wizard by allowing full-height scalable columns
  • Fixed a minor issue with semihosting hard fault handler generated by project wizards, failing to set return value correctly
  • Fixed an issue with the SDK new project wizard failing to set some compiler options correctly, meaning that project build size increased, as unused functions in project sources were not removed by the linker by default
  • Projects created against SDK v2.4.0 packages will now link with the "--sort-section=alignment" option (generally, unless overridden by SDK settings)
  • Improved structure and content of static library projects created by the SDK new project wizard
  • Enhanced support for project local LinkServer debug scripts
  • Added support for project local LinkServer flash drivers
  • Global data placement override added to Managed Linker Script properties, allowing global data to be located in RAM regions other than the first listed in the memory configuration
  • Managed Linker Script properties enhanced to allow user-specified input sections to be listed in specific memory regions in the generated linker script
  • Managed Linker Script page in Project Properties reorganized to give better layout of related options
  • Fixed an issue with validation of heap and stack region sizes on the Managed Linker Script page in Project Properties
  • Support for "Plain load images" added to the managed linker script mechanism - for use with LPC540xx MCUs. This allows an image to be placed into flash but relocated to RAM by the bootrom for execution
  • Instruction Trace functionality now available with P&E Micro and SEGGER debug connections, as well as with LinkServer connections
  • New "GUI Flash Tool", replacing and extending the functionality previously provided by the LinkServer GUI Flash Programmer. This also supports use with P&E Micro and SEGGER debug connections, as well as LinkServer connections
  • Global Variables View now offers the ability, with LinkServer debug connections, to display a live trace of values, either as text or graphically
  • Memory addresses can now be added as expressions to the Global Variables View
  • Fixed various issues with the Peripheral Register viewer, including incorrect display of peripherals defined using the SVD "cluster" tag, and failure to display certain bitfields correctly in some circumstances. Also, bitfield display ordering within registers is now identical for all probe types
  • Enhanced filter mechanism provided by the Peripheral Register viewer
  • For LinkServer and SEGGER debug connections, a hardware breakpoint is now used by default (where Cortex-M hardware allows) for the default temporary breakpoint on main(), improving support for debugging images that are relocated into RAM at boot time
  • Fixed an issue with LinkServer debug connections, which caused the IDE's Debug View to always display "(Stopped)" in thread status (even when running) when FreeRTOS thread awareness was not in use
  • Fixed an issue with LinkServer's "vectpc" pseudo-register in the Register View (used to provide CPU status information when exceptions such as hard faults are triggered)
  • Further improvements to the performance of standard LinkServer semihosting
  • "Mailbox semihosting" mechanism now available for images linked with the Redlib C library and debugged via a LinkServer debug connection. This offers a major increase in bandwidth / performance compared to standard, breakpoint-based semihosting, as the target is no longer halted to transfer data. It requires the image to be linked against a new Redlib variant, and comes at the cost of a small increase in code size and RAM requirements
  • New Terminal View available, allowing UART output from target MCU to be displayed within the IDE rather than requiring a separate host terminal application
  • Removed automatic definition of bitband memory aliases in the LinkServer debug connection on Cortex-M3/M4/M7 parts, as these could prevent debugging in situations where a project contained similar regions in its memory configuration
  • LinkServer SPIFI flash drivers that self-configure using JEDEC SFDP information read from the device are now included for the LPC18xx, LPC43xx, LPC546xx, and LPC540xx families
  • LinkServer QSPI flash driver provided for MIMXRT1050-EVK and EVKB boards. Note that these boards require modification to use QSPI device rather than default Hyperflash device
  • Upgraded to a later version of the P&E Micro plugin (v3.5.3)
  • Upgraded to a later version of the SEGGER software (v6.32a)
  • Updated SEGGER gdbserver detection on Mac / Linux to take into account changes made by SEGGER to filenames on these platforms (in J-Link v6.30 and later)
  • Added the LPC804 MCU to pre-installed part support
  • Extended the Eclipse headless build mechanism to use the environment variable "MCUXPRESSOIDE_SDK_INSTALL" to point to the SDK install directory (primarily to support use of build servers)
  • Optional, anonymous usage information is now collected by the main IDE, as well as the integrated Config Tools
  • Updated the FreeRTOS TAD plugin to v1.0.4. Changes include:
    • Fixed Heap 5 issue with displaying large free blocks
    • Fixed Heap 5 issue with calculating wrong size of heap
    • Fixed issue with task stack showing overflow when usStackDepth is greater than 2048
    • Fixed a heap identification issue
    • Fixed an issue with Queue View when no queue has been registered

We are pleased to announce that MCUXpresso IDE v10.1.1 (build 606) is now available.


This is a minor update to the MCUXpresso IDE v10.1.0 release, the main changes being to fix a small number of SDK handling related issues.


To download the installer for all platforms, please login to our download site via:


Overview of Changes - version 10.1.1 - released Jan 2018

  • Fixed an issue seen when importing a single SDK example, in which example-specific settings could in some circumstances be overridden by IDE defaults
  • Fixed an issue with SDK example import failing to set the correct memory definition in a generated project, in a situation where there is an example-specific memory configuration and also one in the manifest for the board itself

Now updated to v201


We have updated the attached document detailing various features relating to using the iMXRT1050-EVK(B) evaluation board with MCUXpresso IDE v10.2.1 and SDK v2.4.x.


Also attached are the following:


  • a connect script file (RT1050_SDRAM_Init.scp) to enable the on board SDRAM
    • This LinkServer connect script can be used to enable the on-board SDRAM prior to debug operations directly to this memory region. Please see the attached document for more details.
  • a connect script file (RT1050_Debug_Connect.scp)
    • this LinkServer connect script may assist users who experience problems obtaining debug control of this board. Again, please see the attached document for more details.
  • a folder containing the required header source files to enable boot from QSPI
    • these files are only for use with boards modified to use the onboard QSPI device




MCUXpresso IDE Support

We are pleased to announce that MCUXpresso IDE v10.1.0 (build 589) is now available.


This incorporates many new features, as well as enhancements based on feedback that we have received since the original MCUXpresso IDE v10.0.0 launch back in March.

To download the installer for all platforms, please login to our download site via: 


Note - the MCUXpresso IDE User Guide has been considerably extended for this release, for both new and improved features, and we recommend that even experienced users take a little time to go through it. The User Guide and other documentation can be accessed from the built in help system available via IDE's Help menu and in PDF form from within the installation directory or downloaded from:


Overview of Changes - version 10.1.0 - Nov 2017

  • MCUXpresso Config Tools now integrated within the IDE, for use with SDK based projects
  • Upgraded supplied GNU ARM Embedded Toolchain to GCC 6 update 2
  • Increased default max heap space of Eclipse environment requested by the IDE
  • Additional Eclipse Features supplied within IDE installation:
    • Eclipse Marketplace Client
    • Eclipse XML Editors and Tools
    • Eclipse XPath Developer Tools
    • Eclipse XSL Developer Tools
  • Fixed issue with Memory Configuration Editor when all memory blocks deleted
  • Parallel building of projects now also enabled for "release" build configuration (previously this was only done for "debug" builds)
  • Managed linker scripts now generate _HeapSize and _StackSize symbols when configured for "MCUXpresso Style" Heap and Stack placement
  • Managed linker scripts now generate _image_start, _image_end and _image_size symbols giving location and size of main text block (including initial values of RW data sections)
  • Added "Information" option to Binary Utilities menu to run arm-eabi-readelf utility
  • Enhancements to IDE's SDK handling for SDK v2.3.0 packages and manifests
  • SDK default folder mechanism updated to provide a versioning subdirectory, to prevent clash of installed SDKs if IDE v10.0.x is used after SDKs are installed into IDE v10.1.0
  • Improvements to Installed SDKs view. IDE will now show which manifest is in use and the handling of decorators (icons) to reflect SDK state has been enhanced
  • Improved handling of imported project when no matching SDK part support installed
  • Provided Delete option for when a newer version of a specific SDK is imported and replaced an older version
  • New SDK Add/Remove Component Manager allowing addition and removal of drivers, RTOS and many Middleware components to existing projects. Note some functionality only available when used with SDK v2.3.0 packages
  • SDK new project wizard now provides Middleware component selection (for use with SDK v2.3.0 packages)
  • IDE now supports SDK component categorization (where provided by SDK)
  • Projects using linked references to SDKs sources now export with only relative include paths (to an environment variable) so simplifying project sharing
  • Improved interaction between SDK and IDE over project settings (for SDK v2.3.0 packages). This allows, for instance, better syncronization in the Advanced setting page when importing examples. Also allows for projects which require specific settings such as Newlib or floating point printf
  • Enhancements to the SDK Wizard Advanced Setting page, including
    • Redirect printf/scanf to ITM option now disabled for Cortex-M0+ cpu in multicore MCUs
    • C++ project selection in project wizard now prevents selection of Redlib
  • Improved multicore SDK project handling, including enhancements within the SDK new project and import example(s) wizards
  • Enhancements to SDK handling allowing removal of "Reload" part support function, leaving only "Recreate"
  • Filter functionality for Importing SDK Examples enhanced so that now filters on any part of the example path, not just the
    leaf name of the example
  • New Project Wizard improved to better handle situation where user uses "back" button
  • Fixed issue with export of examples.xml file
  • Fixed issue that in some circumstances importing multiple examples could cause some projects to fail to build
  • Changes made to the SDK new project wizard's default board button position and its selection
  • Pressing SHIFT at same time as clicking on the Quickstart Panel's Debug option will now force a debug probe re-discovery
  • Fixed issue with IDE failing to display Peripheral View for a peripheral which is enabled but where some, but not all, of the registers are not accessible (for instance SPI peripheral in slave mode on Kinetis parts)
  • Added alternate ("non-enhanced") Peripheral View service for use with LinkServer that works in the same way as the Peripheral View services provided for SEGGER and P&E debug connections. This is disabled (via a preference) by default, as it is largely intended for internal testing purposes.
  • Fixed issues with Peripheral View for SEGGER and P&E debug probes, plus LinkServer in non-enhanced peripheral mode:
    • LPC17xx and LPC12xx peripherals can now be displayed
    • Display state no longer lost when execution restarted
    • Selecting peripheral register value no longer triggers an error
  • Semihosting HardFault handler now automatically included in new/imported SDK projects. This allows semihosted applications to continue execution without debug tools attached
  • AllStop mode option is now saved if a LinkServer launch configuration is created manually for the connected probe (as
    opposed to using the Quickstart Panel Debug option)
  • LinkServer multicore debug auto-core select now works correctly for Cortex-M0+ core on LPC541xx MCUs (using pre-installed part support)
  • Fixed issue with deleting JTAG/SWD configurations (for LinkServer connections, typically to multicore MCUs) actually deleting the launch configuration files.
  • Fixed issue with IDE's Register View when debugging multicore MCUs such that it displayed Cortex-M4 registers, but referenced them as being for the Cortex-M0+
  • For LinkServer debug sessions, failed debug sessions now report specific session that failed (useful when debugging more than one target)
  • Various functional enhancements to LinkServer GUI flash programmer. Dialog window also now resizable.
  • Fixed LinkServer (redlinkserver) script TIME function on Mac and Linux. Also corrected time resolution for this function on all 3 host platforms
  • Fixed clock setup issue with LinkServer LPC5411x and LPC546xx flash drivers, which could occasionally cause programming failures. This fix also provides noticeable increase in programming performance on these parts
  • Upgraded to a later version of the SEGGER software (v6.20d)
  • Upgraded to a later version of the P&E Micro plugin (v3.1.8)
  • Enhanced gdbserver console for SEGGER debug connection to quote invoked J-Link command when path contains spaces
  • Added support for Environment variables in JLink options
  • Improved SEGGER server handling to link consoles created to project being debugged
  • Improved SEGGER debug reset handling
  • Improved automatic LPC MCU part matching mechanism for P&E Micro debug launch configurations
  • Added LPC802 MCU to pre-installed part support
  • Added LPC8N04 MCU to pre-installed part support

MCUXpresso IDE v10.0.2 (build 411) is now available.


To download the installer for all platforms, please visit:


For users migrating from the current v10.0.0 release of MCUXpresso IDE, we recommend that new debug launch configurations are used:


Delete existing launch configurations


Sometimes the contents or options specified in the debug launch configurations used by MCUXpresso IDE can change between versions. Thus when moving to a new version of the MCUXpresso IDE, we would recommend deleting any existing debug launch configurations within your project. These files are typically named "<projectname> <debug solution>Debug.launch" and "<projectname> <debug solution>Release.launch".


The easiest way to do this is to right click on a project in Project Explorer and select:


Launch Configurations -> Delete Launch Configurations


from the context sensitive menu. The IDE will then automatically create a fresh set of launch configurations the next time that you start a debug session. Note: you may need to reapply any modifications you made to your launch configurations in your previous version of MCUXpresso IDE.


Release Notes v10.0.2 (July 2017)


  • Fixed an issue where an MCU provided in both SDK and pre-installed support (e.g. LPC5411x) could in some circumstances erroneously reselect part support for a project from the wrong source
  • Solved an issue with attempting to install a non-IDE-compatible SDK into a non-default location
  • Solved some issues with creating projects in non-default locations
  • Fixed an issue with the Properties view displaying information for the wrong device in some circumstances (for pre-installed parts)
  • Fixed an issue with incorrect dependency selection in project wizards in some circumstances when switching between boards
  • It is now possible to create makefile projects for SDK MCUs
  • Enhanced the Memory Configuration Editor to give an error if there is no RAM defined for a project
  • Enhanced the Heap & Stack Editor to allow heap size to be set to zero
  • Added a "Create Srecord" option to the Binary Utilities menu
  • Implemented a port auto-discovery mechanism for LinkServer, SEGGER and P&E Micro debug sessions, to improve concurrent debug session behavior
  • Improved editing of launch configurations via double-click, and also improved their presentation in the Project Explorer
  • Fixed some issues with manually generated launch configurations (including non-stop setting)
  • Added probe icons in the "Launch Configuration Selection" dialog
  • Fixed a failure to display registers for certain peripherals in Peripheral View for SDK-based MCUs
  • Resolved an issue with Peripherals failing to display if a '_' character was used in a register name
  • Fixed some issues with the semihosting console:
    • Space/newline characters were occasionally lost when printing only a single character
    • Empty strings were sometimes mishandled
  • Fixed an issue with "Terminate All" in some circumstances when multiple debug connections were active   
  • Improved synchronization of the state of MCUXpresso IDE's blue debug button on the toolbar with the one on the Quickstart Panel, particularly when moving between tabs
  • Stopped the Registers view triggering a null pointer error when an n/a value was clicked
  • Fixed a LinkServer issue with the setting of watchpoints when debugging Cortex-M0/M0+ based MCUs
  • Fixed an issue with auto-core selection when debugging triple-core LPC43xx devices
  • Fixed an issue with display of performance counters in LinkServer SWO Trace
  • LinkServer FreeRTOS Thread Aware Debug is now only available in all-stop debug connections, not in non-stop.  However, FreeRTOS TAD views are still available for non-stop connections
  • Fixed an issue with LinkServer debug connections losing target control when an attempt was made to use more hardware breakpoint units than were implemented by the MCU
  • Fixed an issue where peripherals could fail to be displayed in LinkServer debug connections in some circumstances
  • Enhanced LinkServer support for debugging RAM-only projects
  • Reduced the startup time for LinkServer debug sessions
  • Improved the performance of LinkServer semihosting
  • Enhanced LinkServer to allow restricted parsing of the MCU debug AP bus, allowing support for MCUs with incomplete Coresight implementations
    • Debug of Kinetis KL28 MCUs is now supported via LinkServer
  • Fixed an issue with MCUXpresso IDE mistakenly attempting to use JTAG instead of SWD connections for certain CMSIS-DAP probes with multicore MCUs that have no JTAG support in hardware
  • Fixed an issue with MCUXpresso IDE in some circumstances trying to make a LinkServer multicore debug connection to a slave core without correctly selecting the core
  • Fixed the Save button for the LinkServer SWO Trace ITM console
  • LinkServer no longer leaves the MCU's CPU in debug mode when terminating a debug connection (so semihosted I/O will now hard fault, rather than causing the CPU to enter debug)
  • Made various improvements to the LinkServer GUI flash programmer
  •  Upgraded to a later version of the SEGGER software (v6.16b)
  •  Improved SEGGER support, including:
    • Support for concurrent debugging via multiple SEGGER probes
    • Improved SEGGER launch configuration UI, providing more options directly and adding a new Startup tab
    • Fixed an issue with terminating a debug session when multiple SEGGER debug sessions are active
    • Enhanced automatic part selection for SEGGER debug connections of pre-installed MCUs
    • Changed the SEGGER device dropdown to accept free-form text
    • Fixed an issue seen when debugging with an external SEGGER GDB server, which triggered telnet console issues
    • SEGGER server errors now appear in the dialog when debug connections fail
    • Fixed a server shutdown when a debug session was terminated to leave the board in a running state
  • Upgraded to a later version of the P&E Micro plugin (v3.0.3)
  • Improved P&E Micro support, including:
    • Support for concurrent debugging via multiple P&E Micro probes
    • Fixed an issue with the Quickstart Teminate/Build/Debug button when used with P&E Micro debug connections
  • Various other bug-fixes and UI tweaks, including:
    • Quickstart Panel floating point options made device specific        
    • Added a link to the Error Log view in the invalid SDK exception error dialog
    • Fixed a LinkServer semihosting input issue (e.g. scanf  needing extra carriage returns)
    • Fixed an issue with handling the LPC5411x SDK versus preinstalled support board selection
    • Removed non-stop Probe Discovery options that had been presented for the LinkServer GUI Flash Programmer Mass erase function
    • Added an option to the Project Wizard to allow import of "miscellaneous" files from SDK project structure and SDK components into the generated project
    • Fixed an issue with library project creation pulling in startup code
  • Changed the name of the Linux installer from .run to .bin to avoid issues with the Flexera download system
  • Fixed the Linux P&E Micro udev rules setup for users who have Kinetis Design Studio installed
  • Documentation fixes and minor enhancements to reflect product changes
  • Enhancements to LPC84x support, including ROM divide support  in the new project wizard
  • Added PN7xxxx to the list of pre-installed MCUs  
  • Added QN9080-specific LinkServer debug support


Version 10.0.0 (Mar 2017)

  • First release

The link below is a step-by-step tuturial how to use the LPC800-DIP board with the MCUXpresso IDE:

MCUXpresso IDE: Blinky the NXP LPC800-DIP Board | MCU on Eclipse 




The MCUXpresso IDE has flexible ways how to use 'disconnect' and 'terminate'. Read more about this in

MCUXpresso IDE: Terminate and Disconnect a Debug Session | MCU on Eclipse 



Enjoy :-)


I have completed an article (external link) describing how existing Kinetis Design Studio projects can be imported and used in the MCUXpresso IDE:

MCUXpresso IDE: Importing Kinetis Design Studio Projects | MCU on Eclipse 


I hope this is useful,