STM32 MCUs Software development tools

Hi,After updated to STM32cubeIDE 1.18.00 I get these as errors. In 1.17.0 it was only warnings.The code still works if I ignore the errors and just press "Proceed" while debugging.Here are the logs as text (.text._close_r+0xc): warning: _close is not implemented and will always fail C:/ST/STM32CubeIDE_1.11.2/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.13.3.rel1.win32_1.0.0.202411081344/tools/bin/../lib/gcc/arm-none-eabi/13.3.1/../../../../arm-none-eabi/bin/ld.exe: C:/ST/STM32CubeIDE_1.11.2/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.13.3.rel1.win32_1.0.0.202411081344/tools/bin/../lib/gcc/arm-none-eabi/13.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard\libc_nano.a(libc_a-closer.o): note: the message above does not take linker garbage collection into account C:/ST/STM32CubeIDE_1.11.2/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.13.3.rel1.win32_1.0.0.202411081344/tools/bin

I want to change the selected toolchain for a project by clicking on "Setup STM32Cube project(s)" and selecting the desired toolchain and clicking save.I want to change from clang to gcc to test a few things.It keeps using the old toolchain (clang). Even if I delete the build folder.If I delete CMakePresets.json I get an error that the project requires a preset.If I modify CMakePresets.json I get the following warning message when building:[cmake] Manually-specified variables were not used by the project:[cmake] [cmake] CMAKE_TOOLCHAIN_FILE [cmake]In STM32CubeMX the toolchain option is greyed out.What's the proper way to change the tool chain?

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 v2.0.0 Update of Clang toolchain version 19.1.6 Update of GCC 13.3.rel1 Update of STM32CubeProgrammer to version 2.21.0 Update of ST-LINK GDB server to version 7.12.0 Update of JRE™ to version 21.0.8 Main fixed issues in 1.20.0: No fixed issue to report.  Know problems and limitations in 1.20.0: The user must specify the path of STM32CubeProgrammer/bin as argument when executing STLINK_gdbserver as shown in the example below: ST-LINK_gdbserver.exe -cp /c/ST/STM32CubeCLT/STM32CubeCLT/STM32CubeProgrammer/bin How to get STM32CubeCLT 1.20.0: Under this link  

I have installed the latest IDE in my windows 7 laptop. The installation was successful. When I open the application, I face the following error: An error has occurred. See the log file ....\configuration\.Log file:!SESSION 2025-11-22 14:02:55.630 -----------------------------------------------eclipse.buildId=Version 2.0.0java.version=21.0.8java.vendor=Eclipse AdoptiumBootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_INCommand-line arguments: -os win32 -ws win32 -arch x86_64!ENTRY org.eclipse.osgi 4 0 2025-11-22 14:02:59.045!MESSAGE Application error!STACK 1java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:C:\ST\STM32CubeIDE_2.0.0\STM32CubeIDE\configuration\org.eclipse.osgi\366\0\.cp\swt-win32-4966r5.dll: The specified procedure could not be foundno swt-win32 in java.library.path: C:\ST\STM32CubeIDE_2.0.0\STM32CubeIDE;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/ST/STM32CubeIDE_2.0.0/STM32CubeIDE//plugins/com.st.stm32cube.ide.jre.win64_3.4.100.

Hello,I can not start STM32CubeIDE_2.0.0.I have the following error:D:\ProgramFiles\STMicroelectronics\STM32CubeIDE_2.0.0\STM32CubeIDE;;.C:\Users\Mich\.swt\lib\win32\x86_64\swt-win32-4966r5.dll: La procedure specifiee est introuvableCan't load library: C:\Users\Mich\.swt\lib\win32\x86_64\swt-win32.dllCan't load library: C:\Users\Mich\.swt\lib\win32\x86_64\swt.dllC:\Users\Mich\.swt\lib\win32\x86_64\swt-win32-4966r5.dll: La procedure specifiee est introuvableIn directory .swt\lib\win32\x86_64 there is only swt-win32-4966r5.dll file.Why the installer does not put these files?Do you have any correction please?Best regardsMichel

On STM32CubeMX 6.16, STM32N6 package 1.3.0, APB frequency limit is shown as 400MHz instead of 200MHz.AHB is correctly shown as 200MHz 

Hello,I have a custom STM32H533RET6 board that I can't program.  Following advice found on the ST website I am trying to use CubeProgrammer to mass erase the flash, however it is failing to do so.I am using an STLINK-V3MINIE with Mode: Under reset and Reset Mode: Hardware resetNOTE: the guide says to use software reset, but upon connecting CubeProgrammer switches this to hardware reset. I don't understand why? I can connect to the the board and the mcu type is correctly identifiedHere is the initial connection log:11:47:25 : STM32CubeProgrammer API v2.21.0 | Windows-64Bits11:47:40:870 : UR connection mode is defined with the HWrst reset mode11:47:40:878 : ST-LINK SN : 003A003C323451093630353211:47:40:879 : ST-LINK FW : V3J16M811:47:40:879 : Board : STLINK-V3MINIE11:47:40:879 : Voltage : 2.39V11:47:40:879 : Connection to AP 0 requested and failed, Connection established with AP 111:47:40:880 : SWD freq : 8000 KHz11:47:40:880 : Connect mode: Under Reset11:47:40:880 : Reset mode

The correct declaration should be:void initialise_monitor_handles( void )This is not very important... but it generates warnings

Hello, My usual workflow is to fire devcontainers with everything I need in order to have the right tools in every development computer used by the team.What I notice with the vscode for stm32 is that now it is harded to pack the tools prior to using the containers.Configuring the installed extension is not enough because then when the container runs, every st extension downloads a lot of data from the network.Working with a lot of containers and in a huge team does not scale well because everytime a devcontaner is opened more that 2GB of data are downloaded and unpacked.This is a waste of network, disk, time resource that could be better used. There is a way for having the tools packed in a devcontainer? They are the future of reproducible builds and sharing configuration between programmers. thank you in advanceAndrea

I'm trying to find the cause of a hard fault in my code. The problem repeatedly appears after a few or more minutes after starting the  code, sometimes not at all, sometimes every time at close startup after enabling interrupts, and somethimes after a few seconds, as if it were dependent on the compilation. Somethimes watchdog re-runs code.CubeIDE, STM32G0 I tried debugger IDE and here apears something like this:   What does mean signal handler FFFFFFF1 and FFFFFF9 ? Maybe it helps me to find the problem.I dont use freertos, I dont use dynamic memory allocations. Only interrupts with 4 priority levels_Min_Heap_Size = 0x1000 ; /* required amount of heap */_Min_Stack_Size = 0x2000 ; /* required amount of stack */   

Hi ST Team,I am working on the STM32F746G-DISCO board.I have ported ThreadX with TouchGFX to this board, and I want to use the ThreadX + TouchGFX sources generated by STM32CubeIDE.However, I am facing build errors during compilation.Please find the attached photos/screenshots of the errors.I request your support in resolving this issue.If possible, please share any relevant documentation, guides, or reference links that explain how to properly integrate ThreadX with TouchGFX on this board.Thank you,

I am logged into my STM user account.I get to the download page for STM32CubeCLT (https://www.st.com/en/development-tools/stm32cubeclt.html#get-software) and I try to download the latest version for Windows.A dialog pops up with 'Log in to MyST', 'Create a MyST Account' and down in the corner 'Download as a Guest'.I click 'Log in to MyST' and the dialog just closes and no download starts. 

Hi! I have Linux Mint 22.2. How can I configure CubeIDE colors so that all windows have a white background? Various combinations of Windows->General->Appearance settings allow you to achieve a maximum white background for all windows except the one where you edit the code.Version CubeIDE 2.2.0

All related to the deadtime settings are disabled, but the Set Source of Output 2 can't be set up. It keeps constant 0, and says the deadtime is enabled? why??? @Aimen1

I get a Unhandled: on_readmemory_request not available in PyDevJsonCommandProcessor. error while debugging other python projects. This issue gets resolved when I disable the STM32Cub for Visual Studio Code Core extension and its related extensions.To reproduce: Open an existing python project or package (workspace)Launch the debug session. It tries to start the session and in a few seconds throws this error and stops the debugger.Unhandled: on_readmemory_request not available in PyDevJsonCommandProcessor.Please see https://github.com/microsoft/vscode/issues/249341#issuecomment-3064965337 

Hi,I have configured WB55 project in CubeMX but each time I reopen it, clock config isuue is displayed. When I change SMPS clock source to HSE error dissapears and I can generate project. But onviously it is not saved since next time I open it, error is back and cloc source set again to HSI. Is there way how to fix it or is it just bug in CubeMX? Thanks.David H.   

Hi, I've mostly come up to speed with the STM32 environment by way of CubeIDE (with integrated MX, prior to the recent 2.0 switch). With this most recent update, it seems like the forward-looking direction is to migrate to VScode.So, I tried that - I installed the extension and all its associated extension pack siblings. I can see the ST logo on the left of the pane, with a clock icon on it that doesn't seem to ever go away. Clicking on it reveals three panels, with clickable buttons. The top two - launching cubeMX or Finder - seem to work (albeit with a bit of a lag), but nothing in the Cube Resources pane seems to work, everything gives an error like:command 'stm32cube-ide-core.command.open-user-guide' not foundAnd there are these moving blue lines above each pane that seem to suggest something is happening int he background, but after a half hour of sitting, they don't go away. Basically, I'm fairly confused how I'm meant to be interacting with this, and how to make the leap fr

HiDeleted all my first attempts, wanted a new clean start.Then imported the "Templates" part of the ST provided "stm32cubec0-v1-4-0" examples.But it won't run nor build (greyed out).It says "The selection cannot be launched, and there are no recent lauches" (See attached)I've been looking through to make one but with no luck.The built in Help is not providing anything.

I know this sounds super nitpicky, but the app icon on macOS is not sized per Apple's human interface guidelines.Can you fix the app icon on macOS so it looks like all other macOS apps?Thanks!

Changelog Version 2.0.0 V2.0.0 implies a breaking change: CMake project generation has been moved from VS Code to STM32CubeMX v6.11.0 (and later). VS Code solution no longer has dependency on STM32CubeIDE (.cproject-files) VS Code solution no longer relies on STM32CubeIDE provided toolchains and debugger tools VS Code solution no longer has dependency on vcpkg, Added support to import STM32CubeMX v6.11.0 CMake projects and bootstrap edit/compile/debug in VS Code Added support to create empty projects Depends on STM32CubeCLT v1.15.0 for empty project creation, build and debug tools Documentation update: The User Guide has increased coverage Better OS platform support   https://marketplace.visualstudio.com/items?itemName=stmicroelectronics.stm32-vscode-extension

Hello,I have a small problem here. When I run a clean in git, the directories .vscode, .settings, and build are deleted. If the project needs to be rebuilt, the Setup STM32Cude project function has to be executed manually, and the board/device has to be specified manually again. This is very error-prone. Is there a way to start this project setup from CMake or from CMakePresets.json?For example, if no compiler was found?In CMake, the correct settings are already known.

I've burned a significant amount of time tracking down an issue, so I thought I would share in the hope of helping others and maybe improving ST's provided newlib locks.(This is probably in the wrong place, please move it as required.)I'm using the ThreadSafe files (stm32_lock.h & newlib_lock_glue.c) generated by CubeMX 6.6.1 to make newlib thread safe.I'm utilising Strategy 4: "Allow lock usage from interrupts. Implemented using FreeRTOS locks." (because I'm using FreeRTOS but also the ST USB device library which by default calls malloc from an ISR).Strategy 4 implements newlib's __retarget_lock_etc suite of hooks to lock critical sections inside newlib.To test how robust this solution is I created 3 (exact number not critical, but I had 3 LEDs for debugging...) threads which all repeatedly malloc() and free() in infinite loops.To my dismay it would not be long before a crash/instability occurred.Often the particular "canary" to be killed would be STM32_LOCK_ASSERT_VALID_NESTING_L

I've been beating my head for a while trying to use OpenOCD to download my program to the chip, and I'm getting error messages which cite a write algorithm error (errors attached below). I'm not really too sure what I'm doing wrong, and would greatly appreciate any help and insight with resolving this!TL;DR. I'm getting errors likeError: flash write algorithm aborted by target Error: error executing stm32l4 flash write algorithm Error: flash write failed = 00000088 Error: block write failed Error: error writing to flash at address 0x08000000 at offset 0x00000000in the Console log from OpenOCD.I've reproduced the error using OpenOCD with STM32CubeIDE as follows where I set up a fresh project, demonstrate that using ST-LINK (ST-LINK GDB SERVER) works, and finally demonstrate that using OpenOCD fails.I create a new project withFile > New > STM32 ProjectAnd go to "Board Selector", then select the "Commercial Part Number" to NUCLEO-U575ZI-Q.I press "Next >", then fill out the

Hi all,I am using a nucleo board F412ZG with the Middelware FreeRTOS. I use only one task for now, but I will use others in future.By the way, I set TIM2 as the timer system for FreeTOS:Now I am trying to enable pin PC8 as an external interrupt in order to detect a falling edge: When I generate the code I notice that the TIM2 interrupts is deleted, but I do not understand why. Anyone can help me?Below I leave the screens of the generated code modifies from git:      

Hello,I moved an existing project from 1.14 to 2.0.0. To be clear I created a new workspace, then a new project in 2.0.0 in order to prevent any non relevant bit taken from 1.14 (at the project level) and copied only the source files from 1.14 to 2.0.0. The linker file comes from 2.0.0, as well as the startup file (which is not relevant here).When I compile I get the error that elf has LOAD segment with RWX permissions. The linker file has the READONLY moniker where they are needed, but I have 3 functions that are running from RAM, with __attribute__ ((section(".RamFunc"))). Obviously these are executables, so it is expected to have RWX in the .data section, where .RamFunc resides.How can I get rid of this warning, please ?Even though it is not relevant, the MCU is an STM32G0B1CB.