McuOnEclipse Components: 31-July-2016 Release

Time for a new major update of the McuOnEclipse components, with the fillowing main features and changes:

  • FatFS component updated to R0.12 with patch 3 and exFAT support
  • Extended support for Cortex-M7
  • Extended support for Kinetis SDK V2.0
  • USB component support for Kinetis SDK V1.3
  • Improved FreeRTOS for NXP FreeRTOS TAD plugin
  • Added C++ wrappers to multiple components
  • Many smaller fixes and improvements




It comes now with support for exFAT which removes the 4 GB file size limit of FAT32 (see

FatFS R0.12

FatFS R0.12

With R0.12, several new API functions are now supported:

  • f_expand()
  • f_setlabel()
  • f_getlabel()
  • f_findfirst(), f_findnext()

Additionally block SPI block operation and SDHC access has been optimized, reaching typical 150 kByte write and 300 kByte read performance without DMA (depends on clock speed and SD card used).


I had several cases where the NXP FreeRTOS TAD plugin (see “Adding FreeRTOS Thread Awareness to GDB and Eclipse“) was not properly showing information, if the compiler has optimized variables so they were not accessible any more. I have patched the kernel and now it works fine as well on ARM Cortex-M7.

Cortex-M7 with FreeRTOS

Cortex-M7 with FreeRTOS

Support for Cortex-M7 has been cleaned up and extended in the FreeRTOS port, mainly with proper identification macros. The critical section handling in the CriticalSection component has been aligned with the FreeRTOS critical section handling and now properly supports interrupts.

Kinetis SDK

Several components including the KinetisTools one have been extended to be used with the Kinetis SDK. An application used with the TWR-KV58F220M (see “First steps: ARM Cortex-M7 and FreeRTOS on NXP TWR-KV58F220M“) using Kinetis SDK, FreeRTOS v9.0.0, Segger RTT, SystemView and Percepio trace is available on GitHub.

TWR-KV58F220M SDK Project

TWR-KV58F220M SDK Project

Additionally, now you can use the McuOnEclipse USB component/stack with the SDK v1.3. An example project is available on GitHub.

SDK USB Project

SDK USB Project


I hope this updates and features are useful for you. Changes are documented on GitHub. The release is available on SourceForge:

See “McuOnEclipse Releases on SourceForge” how to install the update.

Happy Updating:-)



18 thoughts on “McuOnEclipse Components: 31-July-2016 Release

  1. Hi Erich,
    thanks for your great components!

    One remark to this article: I think you forgot to place a link in the text. Under “Kinetis SDK”: “An application used with the TWR-KV58F220M (see “xxx”) using Kinetis SDK”.
    You intended to place some link instead of XXX, didn’t you?



  2. Your FAT example using PE explains in one picture the mistake NXP is making dumping PE: you can browse settings in an unfamiliar module quickly instead of reading 10 pages of manuals and typing on all the OR clauses of settings.


  3. Hi Erich,
    I have updated KDS 3.2 with these PE components but now PE returns the error “No type specified (Use Find)” in FAT_FileSystem component of an existing project based on a K20DN512. In the component panel the expected options of the “Use Find” are missing and the resulting value is -1. Do you have any suggestion on what to do?
    Thanks and best regards, Michael


  4. hi Erich,
    I need to use debug BDM freescale MCU (MC9S12C64), my equipment debugging is USBDM on the BDM port of MCU MC9S12C64.

    you know any sofware free to do this? the codewarrior so allows 32k in free version.

    or cracked.
    Student purposes only.

    thank you


    • Hi Rafaelo,
      I have not used USBDM with S12 devices, so I cannot help much on this. CodeWarrior for sure is a good option, but here I recommend to use the P&E Multilink, but it is not free.



  5. Hi Erich, how are you, i install this componets in kd3.0 and show me some warnings like:

    Generator: Warning: at line 135: {{DEVELOPMENT}} The symbol “SaveSymbol__REG_INIT_ONLY__” is not described in the header/comment and is not undefined at the end of included file. (file: Drivers\Kinetis\Static_FTFx_FlashConfig.prg) Cpu Processor Expert Problem

    what that means?

    Thank you for your work around mcu 🙂


    • Hi Marcela,
      have you turned on the Processor Expert debug mode? Go to Window > Preferences > Processor Expert > Component Development and check if “Enable Processor Expert Components Debug Verbose Mode” is *disabled”?
      I hope this helps,


  6. Erich,

    Thanks for all the work. It is really helpful!
    Is there a USB TMS (test and measurement class) support with the K64F freedom board?



  7. Hi Erich, thank you for the regular updates and the helpfull components, I use them in many projects.
    I think I found a copy past error in Kinetis Tools Components in routine UIDGet. The code is :
    uid->id[4] = (SIM_UIDML>>24)&0xff;
    uid->id[5] = (SIM_UIDML>>16)&0xff;
    uid->id[6] = (SIM_UIDMH>>8)&0xff;
    uid->id[7] = SIM_UIDMH&0xff;

    but should be:
    uid->id[4] = (SIM_UIDMH>>24)&0xff;
    uid->id[5] = (SIM_UIDMH>>16)&0xff;
    uid->id[6] = (SIM_UIDMH>>8)&0xff;
    uid->id[7] = SIM_UIDMH&0xff;

    I think.
    best regards,


  8. Hi Erich,

    In my application I use the PE FatFS component. To read a directory I use the component methods opendir and readdir. But what I missed is the counterpart to opendir. As a workarround I directly used f_closedir().
    For completion it would be good to have the method closedir in the FatFS component interface.



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