MCUXpresso IDE v11.3.1 Now Available

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MCUXpresso IDE v11.3.1 Now Available

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MCUXpresso IDE v11.3.1 Now Available

We are pleased to announce that MCUXpresso IDE v11.3.1 (build 5262) is now available.

This is a maintenance release that builds upon the previous MCUXpresso IDE v11.3.0 release, and we recommend that all existing users download and install this new version.


Installer Downloads 

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:


Notification of future releases 

To receive notifications about future releases, please follow : MCUXpresso IDE - Release History 


Summary of Changes - version 11.3.1 - April 2021

  • Upgraded: Newer SEGGER J-Link software (v6.98a).
  • Upgraded: Newer PEmicro plugin (v4.9.1).
  • Added: 88MW320 support.
  • Added: K32W041A support.
  • Added: i.MX RT1160 support.
  • Feature: Added MCU-Link firmware version check in MCUXpresso IDE:
    • When connecting to target, "Probes discovered" will indicate if there are debugger probes that would require update;
    • Each discovered probe will clearly indicate (by a warning icon) if a firmware update is available;
    • Tooltip on the mentioned probes will indicate the firmware's download location and its version.
  • Fixed: [RT1170] Can't download image to RT1170-EVK when SRAM_ITC_cm7 is located as the first item in RAM blocks in Memory configuration editor.
  • Fixed: [RT1170][CM4 boot] Error programming flash in SDP or empty flash situations.
  • Fixed: [RT5xx/RT6xx] wrong image type (at offset 0x24) in generated executable file.
  • Fixed: [KW38] Instruction Trace window does not pull the assembler instructions.
  • Fixed: [K32W041AM] SWO Trace not working.
  • Fixed: SDK cannot set default launch config options for Segger.
  • Fixed: Exception if the IDE is launched right after installation process, having all checkboxes for additional documentation selected.
  • Fixed: Welcome page not appearing at startup.
  • Fixed: Program and Erase Flash shortcuts from Quickstart Panel are also launching an unexpected debug session on the end of their normal operation.
  • Fixed: LinkServer: Modifying from debugger 8-bit or 16-bit data residing at addresses not aligned to 32 bits may alter data beyond the intended range up to the next 32-bit address.
Version history
Last update:
‎04-07-2021 03:33 AM
Updated by: