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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STM32CubeCLT 1.20.0 released

We are pleased to announce that STM32CubeCLT 1.20.0 release is available. What is new in 1.20.0: Maintenance of the previous version: Updated in accordance with STM32CubeIDE v2.0.0Update of Clang toolchain version 19.1.6Update of GCC 13.3.rel1Update ...

Aimen1 by ST Employee
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STM32CubeIDE 2.0.0 released

We are pleased to announce that STM32CubeIDE 2.0.0 release is available. STM32CubeIDE is now independent from STM32CubeMX. With this release, device configuration, previously handled within STM32CubeIDE via STM32CubeMX, is now exclusively available t...

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...

printf not working.

Hi,printf function not working in stm32cube_ide.No error on ide but also no output on uart.Please help!

VKUMA.12 by Associate II
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Float variable not working in stm32cube_ide.

Hi,Float type variable is not working in stm32cube_ide.float r = 3.14;when I debug the value of r it shows 3 and also I cross verify by using if condition.if(r==3.14)but condition fails, that means float variable not working in ide.Please help!

VKUMA.12 by Associate II
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Resolved! STM32F4 - HardFault_Handler / HAL_TIMEOUT errors

Hello!We have 2 identical custom PCB using STM32F446RE MCU, we encounter the following issues and we can't find out what is happening.I'll try to explain the best I can such problem, testing boards with simple LED blinking program:while (1) { HAL_...

C. Mart by Associate III
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Resolved! I want to use stm32CubeIDE's GCC compiler to compile my project, but the program takes up too much Flash space

The optimization options for GCC compilation are: Optimize for size(-Os),The compiled result is as follows: The size of MCU Flash resources occupied is: text+data = 47264 Byte The.ld link script is shown below: Question: In my program, the....

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Lucky Dog by Associate III
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