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...

Resolved! "Unable to launch" error after stm32cubeide update

Hi all,I'm having an issue with a pre-existing project. It was initially built a few months ago on version 1.16 of the IDE, and confirmed to be working. I have since updated to stm32cube ide version 2.1, and am having an issue with this project not b...

Screenshot 2026-03-14 145114.png

STM32CubeIDE 1.14.0 flto build warning

Hello. I have the following problem. When I enable flto optimization in a (freshly generated) project, several dozen warnings appear during compilation.Sample warnings:Drivers/STM32L4xx_HAL_Driver/Src/subdir.mk:88: warning: pattern recipe did not upd...

SKape by Associate II
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stm32 cubeide: How to modify C language parallel compilation

How to configure parallel compilation in cubeide, that is, "j-4" "j-8" and I encountered an error in the Windows 87 code, how to solve it, I changed the path and still couldn't do it····································································...

CubeIde 2.1.0 Error with J-link

Hello,I have been using CubeIDE for some time to flash the STM32H755ZIT6 microcontroller with the J-Link Base. After the latest update, I started getting this error: Error in final launch sequence:Failed to execute MI command:target remote localhost:...

Debugger steps and runs slowly

I started learning embedded systems recently, and have been using the Nucleo-F303RE board with the STM32CubeIDE toolchain. Recently, I compiled a program and started stepping through it in the debugger. Everything worked fine as always. I started to ...