STM32 MCUs Software development tools

Hey,I'm trying to flash some boards, same as i've done thousands of times with this PC and ST-Link, but Cube Programmer does not load the FlashLoader properly. I'm not using a custom loader or anything, just the default loader for my STM32F051 boards. I'll attach the logs below.I can rule out a defective ST-Link since it happens with other ST-Links as well and the boards are functional as well. A colleague is able to flash them without issues, but using the same ST-Link than him i cannot on my System. I am also able to use the ST-Link normally for flashing and debugging through probe-rs, it just malfunctions in Cube Programmer.It is also not a problem with option bytes as we never set them and all of them are in the default state, i can also confirm this in Cube Prog.I have used STM32CubeProgrammer v 2.19.1 and have since upgraded to 2.20.0 without success. The ST-Link was running Firmware Version V3J16M7B5S1, which i have upgraded to V3j16M8B5S1, again without success. My System

Hello,Dear ST,As a Big fan of yor MCU and everything based on eclipse please give possibility to disable in SFR view particular register or peripherals. Now without this possibility debugger can without my intention clears some flags (witch are cleared by reading some register) And please fix already Life View ;)  

I created a static library using STM32Cube IDE and included it in a non-library project. Both projects build with no errors or warnings, and the application that uses this library runs correctly. My next step was to create an additional static library project and include the original static library in it. I can find no way to do this in STM32Cube IDE. Can anyone point me to project properties for a static library that will allow me to use a different static library I created?

Hello EveryoneI am using the latest STM32CubeIDE i.e. 1.10.1, and I am facing a strange problem.In the register view of the Special Function Register, I have a problem.As can be seen above the RCC->CR register value is 0x30006783This means that Bit 28 and Bit 29 are set, these bits are PLLSAIRDY and PLLSAION, but here it looks like some wrong mapping is done, these two bits are not shown in the SRF viewCan someone please suggest why this is happening, am I doing something wrong?

Hi all,I'm trying to create a new STM32CubeIDE project for the STM32N6570-DK board and use the BSP drivers. For now I'm just trying to do something simple like display camera output on the onboard LCD (or something simpler like displaying text on lcd). I’ve already added the driver files and their dependencies to my project. For the conf template files, I just renamed them without changing content.To get the project to build without errors, I had to manually uncomment the following in stm32n6xx_hal_conf.h:#define HAL_DMA2D_MODULE_ENABLED #define HAL_LTDC_MODULE_ENABLEDNow, I’m following the initialization sequence from the STM32CubeN6-v1.2.0 example projects and calling the following in main.c:BSP_LCD_Init(0, LCD_ORIENTATION_LANDSCAPE);UTIL_LCD_SetFuncDriver(&LCD_Driver);UTIL_LCD_SetFont(&UTIL_LCD_DEFAULT_FONT);UTIL_LCD_SetBackColor(UTIL_LCD_COLOR_WHITE);UTIL_LCD_Clear(UTIL_LCD_COLOR_WHITE);These functions do not return errors, and I can step over them in debug mode,

I just started to look into this chip for a new project, so I decided to try to build a sample program in the Cube IDE. It seemed to work until I tried to enable I3C. Now the build system is complaining about missing files. The missing file is 'stm32h7rsxx_util_i3c.h', the error is '.../Drivers/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_util_i3c.c':20:10: fatal error: stm32h7rsxx_util_i3c.h: No such file or directory'. Where can I find this file and where do I put it? Any help is appreciated, thanks.

I'm using STM32CubeIDE version 1.19.0 and MxCube version 6.15.0.In ExtMemLoader middleware configuration there's a Memory Size option:The *** thing is that it lists C macro options that are capital letters (by naming convention) so megabits (acronym Mb) turn into megabytes (MB). But that "16MB" macro is actually 16 megabits (2 megabytes) in stm32h7rsxx_hal_xspi.h:#define HAL_XSPI_SIZE_16MB (0x00000014U) /*!< 16 Mbits ( 2 MBytes = 2^(20+1)) */That explains why I get bus fault beyond 2 MiB and wasted hour on checking everything.The XSPI configuration option for size is clearer because it writes full unit in "Mbits".Please use clear units.Another confusion comes from the "Memory Mode" option in XSPI peripheral. CubeMX allows to pick Enable or Disable. But in generated code it becomes clear that it is actually enablement of dual-memory mode or not, hence single-memory mode. Some parameters have explanation box appearing. I feel this one needs explanation box, better parameter namin

Hi everyone,I try to connect to my NUCLEO board (NUCLEO-L476RG) via STM32CubeProgrammer but I receive the following error message:I reinstalled the STM32CubeProgrammer but nothing changed. I used to write my program to the MCU flash several times using Copy/Paste .bin file directly to the following storage before:but I am not enable to program the MCU via STM32CubeProgrammer. Even I am not able to use Copy/Paste to program the MCU anymore.This is my NUCLEO development board: (NUCLEO-L476RG)Does anyone have any solution please?ThanksPeyman 

There's a bug in the latest version of stm32cubemx(6.15.0), I migrate my configuration into this version of cubemx, then generate code, and I did not notice that cubemx could change my config and stick into it.I mean, I use tim3 ch2 & ch3 to generate a fixed squrewave, so I set counter period as 5249, and ch2 & ch3 pulse as 2624, then generate code. Ch2 is fine, but ch3 pulse setting will be generated as 5249 in code. And after I save config.ioc file, then reopen it, in the ch3 pulse collumn it shows 5249, although I changed it and saved for so many time, it just remain showing this 5249 value.I'm so exhausted to find the problem, it's so unlogic and mysterious. Please follow up this bug to help other developers from this heck......p.s.I attached my ioc file for you to investigate.

Hello All, I am trying to use the SWV Statistical Profiler in STM32CubeIDE while debugging a stm32H7. I am also using ThreadX RTOS for the project.  I am getting debug output from the SWV Trace Log.  But nothing is appearing in the SWV Statistical Profiler.  The RED button is not grayed out - but it also does not log anything after pressing record when debug is paused. and then resuming.I have ITM Stimulous port 0 checked and PC Sampling and Timestamps checked, as well as EXETRC checked. I am wondering is this something that is disabled when using an RTOS?  I understand that the output will be spread between tasks. I am also running STMCubeIDE on linux. Any Help/Tips AppreciatedThanks,-Trevor         

Hello all.Im starting to work with the Nucleo L476RG board and am now at the stage i would like to bring up the CAN bus. I haven noticed there are CAN bus examples available for other Nucleo baords but not in the current STM32Cube_FW_L4_V1.18.1 for the L476. Is this available or been ported to the L476?Many thanksRich

So originally, I was using a custom bootloader and painfully sending 32 bytes over custom HID to my device. It works, but it's really slow. Not related, but I just want you to know how dumb I am... Anyway, I followed the tutorial to use DFU USB interface to patch application firmware.https://www.youtube.com/watch?v=n_LDXOQHerU I can't get the DFU programmer working on STM32 Cube Programmer because it can't erase properly. =================== STM32 Cube Programmer Fail ===================19:29:25 : UR connection mode is defined with the HWrst reset mode19:29:27 : USB speed : Full Speed (12MBit/s)19:29:27 : Manuf. ID : Demo LLC19:29:27 : Product ID : STM32 DownLoad Firmware Update19:29:27 : SN : 205C3282435819:29:27 : DFU protocol: 1.119:29:27 : Board : --19:29:27 : IAP19:29:51 : Memory Programming ...19:29:51 : Opening and parsing file: Demo_MainFirmware.bin19:29:51 : File : Demo_MainFirmware.bin19:29:51 : Size : 69.75 KB19:29:51 : Address : 0x0800C10019:29

Hi @stforum  @stforum2 @Mahmoud Ben Romdhane Good evening.I am working on an STM32F765VGT6 microcontroller using STM32CubeIDE v1.19.0 on Windows 10 Pro. The project requires enabling both Ethernet (ETH) and USB Custom HID functionalities.  On 22 July 2025, I received an email from the ST Community recommending an update to STM32CubeIDE. At that time, I was using v1.17.0, and I proceeded to update to v1.19.0 as advised.Problem Faced:Today, I encountered an issue where the middleware files related to LWIP and USB HID became corrupted, even though I was working in a different workspace.Due to this corruption, I am unable to restore my previous working code and also unable to access Ethernet and HID functionalities.This issue has occurred after updating to STM32CubeIDE v1.19.0.Now neither i can get back older version of code nor creating a new one which is working.Request for Assistance:Could you please advise on how to resolve th

Hello,I am working with STM32CubeIDE (STM32H7 project, IDE version: 1.15.1, build: 21094_20240412_1041 (UTC)) and I noticed an issue with automatically re-added include paths in my project.In my .cproject file, the following include entries keep showing up after every build or after CubeMX code generation, even though I do not use these middlewares and don’t even have them installed in my workspace: <tool id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.1384018038" name="MCU GCC Compiler" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler"> <option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel.509112497" name="Debug level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel.value.g3" valueType="enumerated"/> <option id="com.st.stm32cube.ide.mcu.gnu.manag

I am successfully using all the SWV debugging functionality in STM32CubeIDE except for the ITM functionality, as described in UM1609 and in the advanced debugging videos on youtube from ST.I have both tried overriding the "_write " function in main.cpp or replacing "__IO_putchar" with "ITM_SendChar" in syscalls.c, but I don't see any output when using printf and ITM port 0 (described in video 4 and section 4.3.5 in UM1609).I have further tested sending output to ITM port 31, as described in video 5, but still cannot see any output.Some details and further questionsSWO is left unconnected - Do I need to connect the SWO to some other pin to make ITM work?I am running at 180 MHz clock speed - Is this too fast for ITM?Does it matter if I compile for cpp rather than c?Are there any benefits to updating an ITM port, like in video 5, rather than updating a global variable and observing the execution order by looking at a graph in a SWV Data Trace Timeline Graph or in CubeMonitor?Any further s

Hi!I have a custom PCB with H7R3Z8T6 & MX25L12833F (16MB Marconix NOR-Flash) hooked up with XSPI1 (Quad SPI). I have been having a very difficult time programming the external memory with the External Loader in CubeIDE.I have followed a forum post (https://community.st.com/t5/stm32-mcus/how-to-create-an-external-flash-loader-for-an-stm32h7rs/ta-p/742005) as a guide to getting started (also https://www.st.com/content/st_com/en/support/learning/stm32-education/stm32-moocs/external_QSPI_loader.html). The only real difference between the guide and my project is I am powering the memory with 3.3V and therefore did not enable HSLV option byte.My issue is that when I flash the Appli firmware, it fails to verify: (Data mismatch found at address 0x90000002 (byte = 0x00 instead of 0x01). When I read the 0x9... register in CubeProgrammer, it is all zeros until ~0x9003XXXX, after which 0xFFFFFFFF is read (see screenshot below). The extact register where 0xFFFFFF03 is read varies, it chang

My autoomplete shows "no default proposals" when plrssing CRTL+Space and do nothin when typing "." or "->" or any other trigger...Some people solved this enabling "Parsing-based Proposals" in the "Content Assis -> Advanced" tab but mine is enabled and not working... I've tested a lot of things and the ContentAssis still not worling... Any help???Thanks

I am encountering a persistent flash programming issue on the STM32L452RE microcontroller using STM32CubeIDE and STM32CubeProgrammer. The device is connected via an ST-LINK V2 debugger using the SWD interface. The problem occurs during firmware flashing: although the flash erase operation completes successfully, the subsequent write operation fails consistently with the error message “Error finishing flash operation”. This issue is reproducible across multiple boards of the same model.Development Environment:MCU: STM32L452REIDE: STM32CubeIDE v1.15.1Debug Probe: ST-LINK V2 (latest firmware)Debug Interface: SWD at 3.3VTools also used: STM32CubeProgrammer v2.xRDP Level: 0xAA (Debug enabled, fully open)Boot Configuration:Bootloader: located at 0x08000000 (32 KB region)Application: located at 0x08008000 onwardsLinker scripts: verified for non-overlapping memory sectionsFirmware size: well within the flash limits of the deviceObservations:Using STM32CubeProgrammer:The chip is correctly detec

Hi!Can we switch the SPI Mode from Mode 1 to Mode 0 or vice versa in the same project ??For eg. If I have set the SPI Mode to Mode 1 using my IOC which is required by one of my ICs but one of my ICs works on SPI Mode 0 so can I change the mode from Mode 1 to Mode 0 using the code only to control one IC.Please reply ASAP!Thanks

I've got a project that has the following files in the tree view:All is well if I clean and build, but if I open the .ioc and "Generate Code", the tree changes to:and the project then fails to build due to a duplicate system_stm32g0xx.c file.Why is this getting added and how do I stop it?I am using STM32CubeIDE V1.18.1.

Hi Team,I am trying to use the HSE for Nucleo U5A5ZJ but I have some confusion. The document says .."HSE is the 16 MHz oscillator for the STM32 microcontroller. This clock is available depending on the targetSTM32 series microcontroller used on the Nucleo-144 board."So does this board have the external oscillator or not?In the clock configuration diagram, it defaults the Input frequency to 8MHz. Why?Even if i use this 8MHz HSE deploying the code to the board results in messages like "Target is not responding, retrying...". Can you please give some guidance.Thanks.Sandeep

I have a FreeRTOS project but I cant use xTaskCreate even though its in the paths list (see image below)Frustratingly this is the exact same set up I was using last week in a similar project that worked but today.... no dice.Why isn't the compiler finding the references? They all exist in the directories in the paths & includes list. In fact if I right click & ask to find the definition Cube quite happily opens the correct file, so why cant the compiler find them?I check that the flag for the xTaskCreate define was set correctly (it is).EDIT :: User error, I forgot to delete the GCC folders for all the other ARM_CMxx processors that I'm not using. Hence I was getting what were in fact multiple define errors.  

Hi,I am finding STM32CubeMX is hanging when generating code in my project. I have had this in the past and managed to work around it by adjusting main.c so it didn't complain however that isn't working this time. If I run it in the console I see..2025-08-20 15:48:29,933 [INFO] CodeEngine:265 - oldGeneratedFile, /Users/oconnd1/work/micro/hv_psu/hv_psu01/Core/Inc/main.h_save 2025-08-20 15:48:30,033 [INFO] CodeEngine:289 - Generated code: /Users/oconnd1/work/micro/hv_psu/hv_psu01/Core/Inc/main.h 2025-08-20 15:48:30,037 [INFO] CodeEngine:265 - oldGeneratedFile, /Users/oconnd1/work/micro/hv_psu/hv_psu01/Core/Src/main.c_save 2025-08-20 15:48:30,208 [INFO] CodeEngine:289 - Generated code: /Users/oconnd1/work/micro/hv_psu/hv_psu01/Core/Src/main.c 2025-08-20 15:48:30,215 [ERROR] ProjectBuilder:2238 - java.lang.NullPointerException: Cannot read the array length because "<local4>" is null at com.st.microxplorer.codegenerator.CodeGenerator.cleanDir(CodeGenerator.java:2746) ~[STM32CubeM

Hello allI'm trying to use the HAL library for STM32U5G9 and have encountered errors in the code, which I don't know how to solve Description Resource Path Location Type'PCD_SNG_BUF' undeclared (first use in this function) usbd_conf.c /usb_hal/Middleware/ST/USB_DEVICE/Target line 447 C/C++ Problem'USB_LP_IRQn' undeclared (first use in this function) usbd_conf.c /usb_hal/Middleware/ST/USB_DEVICE/Target line 87 C/C++ Problem'USB_LP_IRQn' undeclared (first use in this function) usbd_conf.c /usb_hal/Middleware/ST/USB_DEVICE/Target line 117 C/C++ Problem'USBWakeUp_IRQn' undeclared (first use in this function) usbd_conf.c /usb_hal/Middleware/ST/USB_DEVICE/Target line 93 C/C++ Problem'USBWakeUp_IRQn' undeclared (first use in this function) usbd_conf.c /usb_hal/Middleware/ST/USB_DEVICE/Target line 119 C/C++ Problemand these are the relevant lines  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData, 0x00, PCD_SNG_BUF, 0x0C); ///////////////////////////////////////////////// v

As described in this post during installation of CubeIDE on Ubuntu 24.04 an error is presented because libncurses5 is not available for Ubuntu 24.04. This can be worked around by using the generic installer. When attempting to upload firmware to an MCU, however, the same error message is given (it is shown as "Could not determine GBD version", but in details the missing libncurses5 is shown). The solution to a similar problem is given in this post, but the solution does not work for the CubeIDE as it requires a specific version of libncurses to be installed.Any suggestions would be greatly appreciated!