STM32CubeIDE (MCUs)

During debugging its showing pop_up notification like  Failed to enable live expression, connection failed but when i am click ok, after that its start downloading. what could be the reason for that one.   

Hello. When I press to Run (Run main.c) button, STM32CubeIDE opens random file, possibly, from current repository, for example: startup_stm32l452xx.s, core_cm4.h etc... Code is loading successful, but this side effect bothers me. I would like to disable this function. How can I do it? If you need more information about this behavior please, ask. Thank you for reading.

 Hi. I am new to STM32 microcontroller. I started with STM32Cube IDE. So far everything is good until a build of a template project failed. I changed the directory structure of template project and moved folders Src, Inc and Startup to project root and removed Core folder. Now project wouldn't build. Although it generates binaries but with errors. I have also updated the Include paths in project properties but linker keeps failing. This is not a big deal I can move everything back to its original position and it will compile and link without any issue. I am just curious that what is missing. Just want to know what is going wrong. This is the error I am getting multiple times.STM32CubeIDE_2.0.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.13.3.rel1.win32_1.0.100.202509120712/tools/bin/../lib/gcc/arm-none-eabi/13.3.1/../../../../arm-none-eabi/bin/ld.exe: STM32CubeIDE_2.0.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-st

I'm working on my first development projects on the STM32H755, which has two M7 and M4 cores. I need to display the printout on the ITM console while debugging. For example:The main.c file of M7 has the following code:..... while(1) { printf("Welcome Cortex-M7\n"); HAL_Delay(2000); } .....The same is true in the main.c file of M4 with the following code:..... while(1) { printf("Welcome Cortex-M4\n"); HAL_Delay(1000);} .....Before debugging, I configured the ITM console with SWV on the STM32CubeIDE environment, following the YouTube video:https://www.youtube.com/watch?v=Zwylu6ma9gU https://www.youtube.com/watch?v=k3mXhPZSasw Then I enabled SWD to both the M7 and M4 cores in the Debugger option with the same clock frequency (64.0 MHz), port 0 for the M7 and port 3 for the M4.Based on this configuration, during debugging, I see the "Welcome Cortex-M7" character printed, so debugging for the M7 is working correctly. However, I don't see the "Welcome Cortex-M4" character printed o

Hi,STM32CubeIDE 2.0fresh projectwithGNU Tool for STM32: 14.3.rel1 :GNU Tool for STM32: 13.3.rel1regards

Where can I download an archive of the GNU Tools for STM32 separate from the STM32Cube IDE?Alternatively where can I find your open-sourced patches that you list in the information center?

Please note that maintenance on the user authentication service is scheduled for 26 February. During this period, some disruptions may occur. The impact is limited to versions earlier than STM32CubeMX V6.16 and STM32CubeIDE V2.0.0. The service returns to normal soon after maintenance is complete. What to do if you encounter a problem If you experience issues during the maintenance window, please use st.com or try again after one hour. If the problem persists after that time, contact us through the Community for further assistance.   Update 27 February 2026: The maintenance was successfully completed as scheduled on 26 February. If you encounter any issues, please do not hesitate to contact us.    

I have unrecoverable errors building on STM32CubeIDE a project generated by STM32CubeMX.The errors arise compiling assembly .s sources for ThreadX.Versions:STM32CubeMX 6.17.0STM32CubeIDE 2.1.0Error (excerpt from build console):arm-none-eabi-gcc -mcpu=cortex-m4 -g3 -DDEBUG -c -I../Core/Inc -I../AZURE_RTOS/App -I../Drivers/STM32L4xx_HAL_Driver/Inc -I../Drivers/STM32L4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32L4xx/Include -I../Drivers/CMSIS/Include -I../Middlewares/ST/threadx/common/inc/ -I../Middlewares/ST/threadx/ports/cortex_m4/gnu/inc/ -I../Middlewares/ST/threadx/utility/low_power/ -x assembler-with-cpp -MMD -MP -MF"Middlewares/ST/threadx/ports/cortex_m4/gnu/src/tx_thread_interrupt_disable.d" -MT"Middlewares/ST/threadx/ports/cortex_m4/gnu/src/tx_thread_interrupt_disable.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/ST/threadx/ports/cortex_m4/gnu/src/tx_thread_interrupt_disable.o" "../Middlewares/ST/threadx/ports/cortex_m4/gnu/sr

Hi,I have project for STM32F405 created manually. Project is using fixed GCC 4.92014q4.After updating STM32CubeIDE to version 1.14.0 i got warnings shown below.Compiler option "Cyclomatic Complexity" is disabled.File "subdir.mk" contains this rule:# Each subdirectory must supply rules for building sources it contributes Src/%.o Src/%.su Src/%.cyclo: ../Src/%.c Src/subdir.mk How to remove this warnings?

Hello, I am beginner with STM32.I have some radiosonde boards with an STM32L051R6T6. I use STM32CUBE IDE V2.0.0When I start a project, select the appropriate MCU, there is no Core directory and no ".IOC" file.So, it is impossible to access to the GPIOs.I've tried some ways to do that and allways unseccessfull. Please, have you an idea ? NoticeI use also an STM32F103C8T6 board.  I've create my own GPIO lib, my own I2C lib,  and I can compile, flash, debug and run my program. Thank you and sorry for my english  Retired 

I've successfully set up a docker container building my project using the headless script. I've also successfully generated a Windows version of the compile_commands.json using the setting inside the properties menu. But I need a version of this that's from the linux build, because I want to lint inside the docker container for continuous integration. I've looked at what gets changed inside the .settings folder when that setting is changed in the normal non headless IDE ("generateCDB=true"), and I've tried simply building the code with that folder and the files in it in the same place in linux, but compile_commands.json is not generated.

I have a project where if I right click on the project in the project explorer, the IDE just hangs. I've tried opening the project in a different workspace, so it's not (I think) a workspace issue. Other workspaces/projects are just fine. Anyone experienced this? Know of a way to fix it? v1.16 on Mageia Linux, using KDE, not using Wayland. Thanks.  

Hi,I want to know what software versions and licenses are part of the STM IDE v1.18.0. For Version v2.1.0 I have found these release Notes which list everything nicelyhttps://www.st.com/resource/en/release_note/rn0114-stm32cubeide-release-v200-stmicroelectronics.pdfOn the STMCubeIDE Download Page / Documentation / Release Notes only lists the most recent Release Note:https://www.st.com/en/development-tools/stm32cubeide.html?ecmp=tt9470_gl_link_feb2019&rt=rn&id=RN0114# How can I find this information for v1.18.0? 

Hi, I am trying to debug my STM32N6570-DK board, i followed the steps listed under 4.1.3 (Debugging the application) in the getting started instruction list (https://www.st.com.cn/resource/en/application_note/an6265-getting-started-with-stm32n6-mcus-in-stm32cubeide-stmicroelectronics.pdf). When i try to debug the application, it starts normally (code uploads to the external memory), but when i click resume to start the program, the debugger loses connection and eventually exits debug mode. The program I am trying to debug was made using TouchGFX, it's configured as an FreeRTOS project. This is the output the debugger gives to me:Starting server with the following options:Persistent Mode : DisabledLogging Level : 1Listen Port Number : 61234Status Refresh Delay : 15sVerbose Mode : DisabledSWD Debug : EnabledInitWhile : EnabledWaiting for debugger connection...Debugger connectedWaiting for debugger connection...Debugger connectedWaiting for debugger connection...Target is not respond

Can anyone help to find the error in the code because it is not able to print anything on the console. I have also try to change the pins of UART but then also it is not be to print anything on the console. 

Hi im trying to make up a iot curtain right now and using stm32f411re with nodemcu to connect them to my wifi.i am testing all the sensors and wifi sector separated so non of the sensors are connected to stm32 right now just nodemcu and stm32. so i have tested to make a webpage to have a button to light up ld2 led and when i modified the code like below, the mcu still connected to wifi, gave the IP address to connect, but webpage gives me ERR_CONNECTION_REFUSED how do i solve this problem?

hi im making a project to detact rain and sunlight to give decision to close the curtain refusing the user to change the value of the curtain closed. i am currently using NUCLEO-F411RE board with NodeMCU v3 using the NodeMCU just as middle man to connect them into my home wifi. Currently, the problem is everything seems working fine until securing the connection between STM and wifi router, but when i use my phone or laptop to get connection to the webpage that STM builds, ERR_CONNECTION_REFUSED occurs. I have tested that both board is working fine, i have disconnected all the sensors as i am just testing on the wireless connection. I have attached the main.c file the ESP8266 file and the ringbuffer file so that it might be easier for me to get some help

Started project (using STM32CubeMX) with STM32C011J4M6 (SO8 package, 16K flash).Using STM32CubeIDEVersion: 1.19.0Build: 25607_20250703_0907 (UTC)Application now requires >16K (flash (code+flash data space) so replaced MCU part with STM32C011J6M6 (SO8 package, 32K flash).After adding content to project source code (a font file, taking the expected total flash space over 16384 bytes) build does not complete.I believe the root cause is that I've not told STM32CubeIDE of change to the larger-flash version of the chip (same family, just larger flash).What file(s) need to be edited to enable the larger flash size (or do I need to revert to STM32CubeMX and then splice the now under-development project source code into the new project? C:/ST/STM32CubeIDE_1.19.0/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: (MY PROJECT NAME).elf section `.d

I am using STM32Cube IDE version 1.4.1 where I'm debugging 1st the CM4 Core which is getting debugged and then I tried to debug CM0+ core which is not going into debug mode and showing the error :Target unknown error 32Error in initializing ST-LINK device.Reason: Unknown. Please check power and cabling to target.I tried this tooLaunching the configurationsLaunch the Cortex®‑M4 configuration to download both the Cortex®‑M0+ and Cortex®‑M4 images.Resume the Cortex®‑M4 core until the C2BOOT bit is set in power control register 4 (PWR_CR4) to enablethe Cortex®‑M0+.Launch the Cortex®‑M0+ configuration using the arrow next to the debug icon. The Cortex®‑M0+ is in therunning mode and the user can halt it after the debugger is started.The core CM4 got into debugged mode but then the Core CM0+ is showing :Debugger ConnectedWaiting for debugger connection...Debugger ConnectedWaiting for debugger connection....Debugger ConnectedWaiting for debugger connection...Why is it so?Where is the problem.

Hi I am just getting started with STM32CubeIDE for a project I am doing at my university!I have made an account and installed the software, and I got the board (NUCLEO-L552ZE-Q), I wanted to start a new project with the board to try and blink and LED.But somehow I cant find it anywhere where to create a new project that is not an empty project because I want my board automatically connected to my project, because I have read some online where they said a question "Initialize all peripherals with their default Mode?" will appear once you created a new project and want to connect the board.The alternatives I get when pressing Create/Import STM32 Project is:1. STM32CubeIDE Empty Project2. C++ Project3. C project4. STM32 CMake ProjectPlease let me know if I have done something wrong with the installation or if there is something I missed.Thanks in advance!

We are pleased to announce that STM32CubeIDE 2.1.0 release is available. What is new in 2.1.0: Added support of STM32C5 series Added support of new microcontrollers across the STM32WBA, STM32WL, STM32H5, STM32U3 and STM32F7 series Added support of new boards: NUCLEO-C542RC, NUCLEO-C562RE, NUCLEO-C5A3ZG, NUCLEO-WBA25CE1, NUCLEO-H5E5ZJ, STM32H5F5J-DK, and NUCLEO-U3C5ZI-Q Support of auto-refresh on imported projects (created initially outside CubeIDE): The updated project source code is auto refreshed at STM32CubeIDE side Support of CMake presets: Providing an easy way to configure the CMake-based project using a JSON file Support of GCC 14 toolchain as default toolchain: Libncurses5 is no longer needed for GDB on Linux Support of Apple® Silicon with ARM64 architecture: Performance enhancement Update to STARM-Clang 21.1.1: Improving code quality, diagnostics and standards conformance Main fixed issues in 2.1.0: Refer to the STM32 microcontroller wiki at: https://wiki.st

I am developing in C++ using STM32CubeIDE on an STM32L476.I’m trying to use Cppcheck to verify the quality of my code, but the analysis fails with errors and I can’t get it to run successfully.I have specified all the defines and include directories that are set in CubeIDE.When the CPU is specified, certain internally determined macros and include directories are required, and it appears the errors are occurring because those are missing.I am using the following options.CPU "Cortex-M4(0)"Core "0"Floating-point unit "FPv4-SP-D16"Floating-point ABI "Hardware implementation (mfloat-abi=hard)"Instruction set "Thumb2"Runtime library "Reduced C, reduced C++ (--specs=nano.specs)"Enable "Use float with printf from newlib-nano (-u _printf_float")Toolchain is ""GNU Tools for STM32(13.3rel1)I am using CubeIDE on Windows.The installation directory is left at its default (C:\ST). Which definitions and include directories should I add? 

1. Environment DetailsBoard: NUCLEO-F446RE (Cortex-M4)IDE: STM32CubeIDE Version 2.0.0Debugger: Integrated ST-LINK/V2-1Firmware Version: V2J46M33OS: Windows (Process path: C:\Users\salai\...)2. Problem DescriptionI am encountering a persistent debugger crash where the session terminates immediately after launch. Additionally, I am unable to rebuild the project due to a file lock on the .elf binary.Symptom A: Debugger Disconnection Upon clicking the "Debug" button, the console shows the GDB server starting, but it immediately terminates with: arm-none-eabi-gdb <terminated, exit value: 0> ST-LINK (ST-LINK GDB server) <terminated, exit value: 0>Symptom B: Build Error When attempting a "Clean" or "Build," the console reports: rm: can't remove '1_SYSTICK_TIMER.elf': Permission denied make: [makefile:79: clean] Error 1 (ignored)Symptom C: No Source Available After a full chip erase, the debugger points to 0xfffffffe with the message: No source available for "<signal handler cal

I recently updated to Linux Mint 22 (Cinnamon 6.8, kernel 6.8.0, Ubuntu 24.04) by means of the "generic Linux" version. (I had tried without success the Debian package and was advised to use the "generic" instead).The software works and compiles OK as long as you do not try to launch or debug the result. At this point it stops complaining that it cannot find gdb because libncurses.so.5 is not installed.  The problem lies in the fact that  libncurses5 is deprecated and non longer available (you can get libncurses5-dev but that is of no avail).At this point I reverted to the old 1.10 version that I still had, and found the same problem.  The only solution seems to be an upgrade of STM32CubeIDE to libncurses6.Do you have any solution or a forecast for such an upgrade? I hate thinking of switching to  a different processor line.Tranks

Hello, I installed STM32CubeIDE and attempted to set up my first project as you can see in the three attachments.Based on YouTube videos, I expected to see the MCU outline so I can assign functions to the pins.  As you can see in one of the screenshots, I'm getting a message stating that "There is no active editor that provides an outline"I did the following to try and address this, with no luck...   *  Uninstalled and Reinstalled STM32CubeIDE, including manually deleting folders that were not removed by the automated removal process.  To be safe, I used a different project folder name but this didn't help.  *  Installed STM32 on a second Windows 11 laptop but saw the exact same problemI didn't bother trying older versions of STM32CubeIDE because I read in a different post that this did not solve the problem for the other user.Any help is appreciated.