I'm using

  • STM32F103C8T6
  • Atollic TrueStudio
  • STLink2.1

Error I get when debugging:

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Debug configuration set in TrueStudio:

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What worked before was in SW4STM32/Eclipse, with the following settings. I always had to change the reset mode from Connect under Reset to Software System Reset. However, this option is not available in the debug configuration of True Studio.

What can I do to use debugging successfully with STLink2.1 on Atollic TrueStudio?



1 Answer 1


I found the answer elsewhere but I will repeat it here for other people:

  • Close Atollic TrueStudio (not sure if this is needed)
  • Startup ST Utility
  • Press the Reset button and keep it pressed
  • Select Erase Chip (in Target menu)
  • Release the Reset button
  • The chip is erased
  • Close ST Utility
  • Startup Atollic TrueStudio

Debug should work now

  • 1
    \$\begingroup\$ Saved me a lot of trouble, thanks! \$\endgroup\$ Commented May 14, 2019 at 9:26

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