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STM32CubeProgrmmer GUI 2.21.0 does not save the interface selection correctly for USB and UART

LurkingKiwi
Associate II

‎2026-02-12 4:19 PM

I am having to program a unit via UART, and every time I open the STM32CubeProgrmmer GUI the interface selector shows J-Link/Flasher.

It remembers if I choose ST-Link.

If I manually edit the "interface=" entry in config.properties to 2, STM32CubeProgrmmer opens with UART selected.

On exit, the "interface=" entry is rewritten to 1.

If I select USB as the interface, the "interface=" entry is rewritten to 2, which opens as UART the next time, and then the "interface=" entry is rewritten to 1 on the next exit.

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1 REPLY 1
Amine_Jridi
ST Employee

‎2026-02-17 8:09 AM

Hello @LurkingKiwi,

Thank you for reporting this. I have submitted a ticket to our team for resolution.

 

Internal ticket number: 227481 (This is an internal tracking number and is not accessible or usable by customers).

 

Thanks,

Amine.


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