STM32CubeIDE (MCUs)

Ask questions on STM32CubeIDE. Discuss how to build, debug, configure, and optimize your project as well as how to use our software tools.

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STM32CubeIDE 2.1.1 released

We are pleased to announce that the minor version 2.1.1 of STM32CubeIDE is available. What is new in 2.1.1: This release covers the topics listed below: SEGGER J-Link GDB server updated to 9.24 to fix an issue with the Live Expression view during the...

Aimen1 by ST Employee
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STM32CubeCLT 1.21.0 released

We are pleased to announce that STM32CubeCLT 1.21.0 release is available. What is new in 1.21.0: Maintenance of the previous version: Updated in accordance with STM32CubeIDE v2.1.0Update of Clang/LLVM toolchainUpdate of GCC to GCC 14Update of STM32Cu...

Aimen1 by ST Employee
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STM32CubeIDE 2.0 release - early heads-up!

Starting from the release in November 2025, STM32CubeIDE and STM32CubeMX will be available exclusively in their standalone versions. STM32CubeMX will no longer be integrated inside STM32CubeIDE. Instead, the two tools will be interoperable in the sam...

Bug with single wire UART

Hey there,it's no big deal, but rather annoying. If I select one UART to be Half-Duplex the RX pin disappears from the pinout even if I select receive only. It doen't matter if I select RX only or TX only, the RX-pin won't show up again. The generate...

EKoec by Associate II
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Resolved! Printf with float produces random output

No matter what I try, something as simple as printf("%f\n", 0.0) or printf("%f\n, 3.14159265359 for some reason produces a text string representing a negative, extremely long and seemingly random number. Opening project-settings on C/C++ Build -> Set...

Resolved! How to redirect printf?

I have generated a project in CubeIDE and I wish to redirect printf's output. Alas, neither of the methods I've found by googling work: writing a custom _write() - function does nothing, writing a custom __io_putchar() does nothing. These are the met...