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µVISION: Loading PDSC Debug Description failed for STM32F7xx

Information in this knowledgebase article applies to:

  • Keil MDK 5
  • STM32F7xx_DFP 2.10.0 and higher
  • STM32H7xx_DFP 2.1.0 and higher


After updating the STM32F7xx or STM32H7xx Device Family Pack, you might see the following error message when loading an existing project in µVision:

Loading PDSC Debug Description failed for STMicroelectronics STM32F7...

The Build Output window looks similar to this screenshot:


The Debug Description for STM32F7xx and STM32H7xx devices was updated and became incompatible to previous versions. This issue appears if you are using an STM32F7xx pack version 2.10.0 (or higher) or STM32H7xx pack version 2.1.0 (or higher) with a µVision project that was created with a previous version of these packs. Debug Description files (*.dbgconf) are automatically copied from the corresponding pack folder to your µVision project folder when a project is created.


  • Close your µVision project.
  • Delete all *.dbgconf files in your µVision project folder ProjectFolder\DebugConfig\*.dbgconf.
  • Start µVision and load your project. A Debug Description file *.dbgconf (one per µVision target) will be copied automatically from the latest installed Device Family Pack.


Last Reviewed: Wednesday, October 14, 2020

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