STM32 MCUs Software development tools

I used STM32CubeIDE a long time ago but then switched to another IDE. Now for some reasons I try to use again STM32CubeIDE. I want to keep my build system (command line based on makefile and arm-none-gcc) and use the IDE only for debug. Environment is windows + STM32CubeIDE v1.10 (I know it's old but I am not admin of my machine).I created a "STM32 project" and linked it to my source directory tree then I went to Debug Configurations > STM32 C/C++ Applications > New configuration. The first problem I had is that it doesn"t find the project, so I had to browse directly for the .elfThen I disabled autobuildAnd I've got the message "unsupported build configurations, MCU ARM GCC required for debug". ARM-GCC was not included in this version of STM32CubeIDE ?Am I doing it wrong ?

Hi,i have a confusing problem, i have a simple routine to compute values and it needs to return the result as a double. just before the return the value is correct but the calling routine does not get passed this value. i know there can be some alignment issues with double variables. i am using STM32CubeIDE Ver 1.18.1 To overcome i simple create a global variable and assign this the right value and it all works. however why am i not able to return the double value?any help appreciated.Mark

ST moderator edited the title to give more visibility on the issue/subject Hello, I have a board with an STM32C092KCU6 where the main clock is using the HSI48 internal oscillator but I also have an 8MHz crystal for the HSE oscillator to use for FDCAN for higher precision. When the HSE is clocking just the FDCAN module the CAN does not work. I can get the CAN to work by using HSI48 as the FDCAN clock source. I can also get the CAN to work if I use HSE as the main clock (but it is too slow) or if I enable the clock output MCO2 with HSE as its source or also if I enable the RTC module and set HSE as its source. So it seems that the HSE oscillator will only work if it is being used on FDCAN + one other place.   Osc for core CAN clk RTC clk MCO2 CAN working? HSI48 HSE - - No HSE HSE - - Yes HSI48 INT - - Yes HSI48 HSE HSE - Yes HSI48 HSE - HSE Yes HSI48 HSE - HSI48 No I first thought this was a gain margi

I am using STM32CubeMX in version 6.14.1 with STM32U585OIY6QTR selected.Trying to Setup VREFBUF Mode I can not set anything since it is greyed out.VREF should be supported by this MCU.   

Hi,I'm looking into creating a custom tool to provision our STM32H533 boards which will allow a non-trusted 3rd party to flash the firmware, configure the Option Bytes and program secret keys into the OptionByte Key storage areas.I cannot see any way to program the OB Key data via the API.  Is it possible?For reference, the CLI parameter would be -sdp secret_key_file.obkThanks in advance.Michael Waites

Hi,I have a toubles with a debuging my program.I started from the begining... so I create a empty project in VSCode for this MCU (setup is CLANG only). I build the empty program. It has 702 B. Debuging is working at this point.But after create a "data" in flash with this code: #include <stdint.h> #include <sys/cdefs.h> #define TARGET_FLASH_SIZE_B (64*1024) extern const uint8_t size_filler[TARGET_FLASH_SIZE_B]; void __attribute__((noinline)) force_data_use(void) { volatile const uint8_t *ptr = size_filler; uint8_t dummy = ptr[0]; } const uint8_t size_filler[TARGET_FLASH_SIZE_B] = { [0] = 0xAA, [TARGET_FLASH_SIZE_B - 1] = 0x55 }; int main(void) { /* Loop forever */ force_data_use(); for(;;); }​Debug can't be launched... But if you replace line 4 with:#define TARGET_FLASH_SIZE_B (63*1024)it works... So I think there is some problem with flash size erasing / flashing. The MCU has 2 kB per page and two banks. Here is DEBUG CONSOLE: STMicroe

HelloAfter upgrade STM32CubeIDE to 2.0.0 I have problem with programming multi core STM32WL55. Can download program to CM4 core, but not to CM0+. Before upgrading it worked OK. Now it generate message when programming CM0+: Erasing memory corresponding to segment 0: Erasing internal memory sectors [64 77] Download in Progress: Error: failed to download Sector[0] Error: failed to download the File Encountered Error when opening C:\ST\STM32CubeIDE_1.19.0\STM32CubeIDE\plugins\com.st.stm32cube.ide.mcu.externaltools.cubeprogrammer.win32_2.2.300.202508131133\tools\bin\STM32_Programmer_CLI.exe Error in STM32CubeProgrammer Shutting down... Exit.It suggest the software try to program sector [0] dedicated for CM4 instead sector [64] dedicated for CM0+.When I erase whole chip in Cube programmer, I can download firmware for first time.Also path suggest older version of software (C:\ST\STM32CubeIDE_1.19.0\STM32CubeIDE)

Hi @all  @stforum @stforum2  @stforum.tormod9  @stforum23 @jkn_stforum I’m using STM32U535CBTx MCU, using STM32Cube IDE.Peripherals in use:I2C1UART4LPUART1SPI2GPIO PB8, PB9, PB10 for LEDsIssue: SPI2 works fine when TRNG is disabled.After enabling TRNG, SPI2 stops working.I’ve attached both .ioc files (with TRNG enabled and disabled). Could someone please review them and suggest a solution?Could anyone please:Review my .ioc filesExplain why this happens and how to fix this issue?Suggest how to use TRNG and SPI2 togetherI have attached two .ioc files for reference:sensor nodewith TRNG.ioc – this version has the TRNG peripheral enabled.sensor node without TRNG.ioc – this version does not use TRNG and SPI2 works correctly.Please review and help identify why SPI2 stops working when TRNG is enabled.”Thanks in advance!

Hi,I'm experiencing an issue with the X-Cube-AI Pack (version 10.2.0) on Windows 10.After using the X-Cube-AI Pack, the syscalls.c file is either not generated at all, or if it already existed in the project, it gets deleted during the process.This is causing build failures since the file is required for proper compilation. I've tried this on multiple projects and observed the same behavior consistently.Could you please investigate this issue? It would be helpful if you could confirm whether this is a known problem or if there are any workarounds in the meantime.Thanks in advance for your support!Best regards

My STMCubeIDE is not opening the ioc files or creating STM32 projects, it is acting like the ioc files are text files, not using the STMCubeMX mode to open them. I'd already tried reinstalling the STMCubeIDE a few times, in the C folder and in other disk, tried checking for updates, confirming the installed plugins, deleting the folder after uninstalling the program and many other ways to fix it. Can someone help me?? Please

We are pleased to announce that STM32CubeMX 6.16.0 release is available. What is new in 6.16.0: Added support for new microcontrollers across the STM32WBA, STM32N6 and STM32H5 series and the STM32WL3x product line. The related new boards include the NUCLEO-WL3RKB1 and NUCLEO-WL3RKB2. Implemented the "Start from Board" feature for NUCLEO-WL3RKB1 and NUCLEO-WL3RKB2: Preconfigured board setup through the Start From Board feature simplifies project creation and significantly reduces development time. Released a new installer that natively supports Apple® Silicon : Native support of ARM64 for mac computers.  Implemented the memory management tool for STM32N6: This feature is designed to assist developers in configuring and optimizing the memory layout of their STM32N6 projects efficiently. Enhanced the build process using CMake: Default configuration: ST ARM CLANG with its own linker instead of GCC linker. Picolib is selected as default library for the b

Hey, I want to open a project from my peer, but i cant because the version for STMCubeMX with which it was generated is newer then mineI then do that and 'Check for Updates', which doesn't work and gives me an error. When i try to manually access the website, it doesn't work. I really don't understand what chatgpt.com has to do with any of this either. I can't seem to find any other post mentioning this, but I apologies if I'm wrong.Thanks for the help! 

Hi all,This is my first time posting here.I have a problem with STM32 VSCode Extension v3.5.1 where the DMA on my STM32 H7 (STM32H725RGV6) doesnt work.I tested this with UART TX and ADC Circular DMA mode.The function HAL_UART_Transmit_DMA() returns HAL_OK at first, and then returns HAL_BUSY for the next calls. No data was transmitted at all recieved on the serial terminal.  UART and DMA blocking functions and with IT works fine.The same setup with CubeIDE and with the older extension v2.5.1 works fine. Any input is greatly appreciated.Many thanks Steps to replicate:Start a new stm32 vscode project with STM32H7 like normal and enable uart1 (with all interrupts) and sw debug, max clock 550MHz with HSI.call HAL_UART_Transmit_DMA() and it doesnt work :)Here is my full main.c code though:/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body **************

Periodically, the Add buttons in the configurator stop working and it is impossible to change values in tasks, queues, etc. The system does not respond to mouse clicks (the editor window does not appear). However, the Delete button works. Restarting the IDE helps. It works in other configurators (GPIO, NVIC, Definition Creation).STM32CubeIDE Version: 1.19.0Build: 25607_20250703_0907 (UTC)STM32CubeU0 Firmware Package V1.3.0 / 04-June-2025X-CUBE-FREERTOS: FreeRTOS STM32Cube expansion package for STM32H5/U5/WBA/C0/U0/N6/U3 seriesWindows 11 

Hello, I'm using TouchGFX on an STM32L452RET6 with an SPI screen. The screen has integrated GRAM, so I selected the partial buffer option in STM32CubeMX. STM32CubeMX generated the partial buffer code as expected, but it also generated code for a full frame buffer, which exceeds the MCU's RAM. I need to comment out this code to reduce RAM usage. How can I prevent STM32CubeMX from generating the full frame buffer code?STM32CubeMX version: 6.15.0X-Cube -TouchGFX package and TouchGFX Designer version: 4.25.0STM32L4 Cube package version: 1.81.1

During a debugging session, when `tx_thread_create` is called with a "big" stack size (1024*10 for example) and the "serverRtos" is enabled, the debugger is disconnected with an error: "Remote communication error. Target disconnected: No error." Here the debug console logs (full log attached): Spoiler (Highlight to read)To client: {"seq":0,"type":"event","event":"output","body":{"category":"proxy","output":"RTOS proxy: Lost connection to GDB Server\r\n"}}RTOS proxy: Lost connection to GDB ServerTo client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"{\"label\":\"\",\"value\":[{\"label\":\"Driver\",\"value\":\"ThreadX\"},{\"label\":\"Kernel state\",\"value\":\"Not started\"}]}\n"}}{"label":"","value":[{"label":"Driver","value":"ThreadX"},{"label":"Kernel state","value":"Not started"}]}GDB result: 36 doneTo client: {"seq":0,"type":"response","request_seq":25,"command":"cdt-gdb-tests/executeCommand","success":true,"body":{"status":"Ok","result":

Hi I have installed the updated version V2.0.0 and tried to configure the MCU like before using GUI , but it is not supported then how to get GUI like CubeMX version to configure microcontroller, please help  

HelloI have completed the verification of read/write/sector erase/mass erase operations in the firmware based on the main() function.I have created an external loader by writing link.ld, Loader_src.c and Dev_inf.c and tested the operation. Read/write/sector erase works fine. However, only mass erase does not work.The code for the MaseErase(void) function is below, but just in case, I commented out the content and returned only LOADER_OK;, but the same symptom occurred.STM32CubeProgrammer 2.19, 2.18 versions are the same, and the message of 2.17 is successful, but the 0x90000000 area is not cleared.Is there a problem with the STM32CubeProgrammer program?Or which part of my source code should I modify?STM32CubeIDE 1.17.0STM32H747 및 STM32H743MT25QL512A

Running ST Cube IDE 1.19 on Windows 11, co-pilot autocompletions seem to be causing an issue. I see the suggestion, then a dialog pops up saying the following:An internal error occurred during: "Generating completion...".Invalid thread accessI look at the error log as I see the following:Failed to parse wmic outputException Stack Trace:org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Premature end of file.at java.xml/com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:262)at java.xml/com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:342)at com.st.stm32cube.ide.mpu.remote.serial.internal.SerialPortProviderWindows.run(SerialPortProviderWindows.java:127)at java.base/java.util.TimerThread.mainLoop(Timer.java:566)at java.base/java.util.TimerThread.run(Timer.java:516)

Hi I have used STMCubeIDE 1.11.0 (Cube 1.6.1) to generate the code for USB CDC interface for STM32G0B1.The code is as CubeMX would generate. I have not modified the code at all.When I plug the device into a PC I get "USB device not recognized" I have increased the heap and stack to be 0x1000. without any luck. What can I try to try to figure out what the issue is.Thanks,

Hi,I am developing a telemetry project using the P-L496G-CELL02 Discovery Kit. My goal is to use the X-CUBE-CELLULAR expansion package to handle the cellular modem connectivity and MQTT implementation.However, I am facing difficulties installing this package properly in STM32CubeIDE.The Issue: I went to Help > Manage Embedded Software Packages > STMicroelectronics tab and clicked "Refresh", but the X-CUBE-CELLULAR package does not appear in the list to be installed.What I have done so far:I searched the Package Manager extensively, but it is missing.I have downloaded the .zip file of the package (v6.0.0) directly from the ST website.I tried to use the "Install from Local" option in the Package Manager with this zip file, but it failed (likely because it is not formatted as a pack).Since the automatic installation is not available, what is the correct step-by-step procedure to manually install or integrate the X-CUBE-CELLULAR package into my STM32CubeIDE workspace?I want to ensure

While testing the X-CUBE-EEPROM library in STM32CubeIDE (v1.18.1), I observed the FLASH->CR register in the SFRs window. I noticed that the display for BKER (bank erase select bit) is missing in the FLASH_CR register. Please try to correct this in the next STM32CubeIDE release.

IntroSTM32CubeMX supports CMake since 6.11.0 as a tool chain option. Sometimes you want to customize your project, but you don't want generated files to be overwritten. I will reply to this post how to do these things and this will be the accepted answer. It's like a knowledge base article. Please expand it with more ideas and I will add it to that answer.Generated filesSTM32CubeMX generates:./CMakeLists.txt:This file can be customizedcmake/stm32cubemx/CMakeLists.txt: file with all cube generated source files and defines. It's an interface library. This file can not be modified as it will be overwritten when regenerating with STM32CubeMXcmake/touchgfx/CMakeLists.txt: if you have touchgfx in your project this will be added too. It's an interface library. This file can not be modified as it will be overwritten when regenerating with TouchGFX Designerpotentially more subfolders with CMakeLists.txt filesgcc-arm-none-eabi.cmake: toolchain file for gcc. Used if you use gc

STM32CubeProgrammer 2.18.0 and 2.19.0STLINK-V3SET FW V3J16M7B5S1.STM32H563RIT6 rev X. Bootloader version 0xE4.1. Connect under reset.2. Configure MCU with EDATA1_EN=1 EDATA1_STRT=0x73. Erase sectors 120–127 and fill them with byte 0xEC.4. Create a file file.bin file with 10 bytes of some data.5. STM32_Programmer_CLI.exe --connect port=SWD mode=UR speed=fast ap=1 -d file.bin 0x09001800I expect sector 121 to be erased and the first 10 bytes of it programmed with contents of file.bin.Actually, sectors 121–127 are erased and the first 10 bytes of sector 121 are programmed with contents of file.bin. I.e. it seems erase is done for the reminder of the bank instead of calculating the number of affected sectors from file length.But if you set EDATA1_EN=0 and download file.bin to 0x08002000 it works. The system only misbehaves when the flash is configured as high-cycle count flash.The problem can also be reproduced by using a .hex-file targeting these addresses. Would it pos

Starting from V2.13 the STM32CubeProgrammer_CLI adds strange empty lines into the .hex file when adding CRCs using the --safelib command.Example:...:20F9C000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF47:20F9E000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF010002010100000032B840D616:00FA000006:00FA000006:00FA000006...:00FA000006:00FA000006:020000044807AB:20FA0000D8E292E5D9D0BDBC4BA59A0800855CA4FBEF5C19E0AC58BC12F208DD16414D16DA:20FA20007C32E22F87D80DB1ACEF0F2AC0E8EA3883BA937EC9278191C221243352C16A6BDA...Each empty line has the address of the first free place into the original .hex (seme address where CRCs will be added) but no data and the number of lines seems to be equal to the number of CRC lines added.This is annoying because later I use srec_cat tool and I get lots of warnings about these empty lines! Any suggestione?Thanks!