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Sep 15, 2026 4:46 PM UTC
Question

STM32CubeMX2 Failing to Start

I am running STM32CubeMX2 (1.1.1) on a Mac (Tahoe 26.6.2) and I did (with some difficulty) get it installed and running. I configured a MCU (STM32C552CEUx) and generated an STM32CubeIDE project. No problem.

I went back and copied the .ioc2 file, renamed it, and went to configure a different system. Everything was going fine until I tried to configure some new pins after adding middle ware (FreeRTOS and basic_stdio). I could not select pin functions in the graphic mode, table mode, or through activating the associated peripheral (I2C2) and updating the GPIO there. So, I closed CubeMX2 and restarted. Now I get the splash screens showing fine, but when they go away, I just get the spinning timer in the upper-left of an empty screen.

 

In file, I can click Close Window which it will dutifully do, but then I have nothing. In view, Reload and Force Feload do not seem to do anything.  

 

Any thoughts as to how to debug this would be greatly appreciated.

12 replies

Oussama_TROUDI
ST Technical Moderator
Oct 23, 2026 3:32 PM UTC

Hello ​@intu_user_1934 
Thank you for your feedback 

We’re tracking this issue internally, and it is currently under investigation and being worked on. I will get back to you as soon as I have an update.

Regards
Oussama 

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