STM32 MCUs Software development tools

When using MX to generate the ioc-file and then importing it to CubeIDE, it is tricky to make it work.Such as trying to make a pin an output pin. In this case on the STM32H563 where I want to use PE2 (on pin 1) and PE3 (on pin2) as output pins. when generated it is not possible to change the output of these port pins. Why is that a problem when the compilation is ok and the debuger does not protest?Is there any specific setup that has to be done manually? Iried that but then the compiler objected.How make such a simple action work in such a complicated environment?  

      在32位中，字的单位应该要*4吧？为什么这里直接是按字节赋值？？？坑死我了 Translation: "In 32-bit, the word unit should be * 4, right? Why is it assigned directly by byte here? ? ?"   Edited by ST moderator to be inline with the community rules. In next time please write in English as it's an international community. Thank you for your understanding.

When I upgraded to STM32CubeMx version 6.15.0, my project that uses FatFs added a call to HAL_SD_Init() inside MX_SDMMC1_SD_Init() when I regenerated code:This is incorrect behavior because the FatFs library calls HAL_SD_Init() from BSP_SD_Init if the SD card is present, based on the configured Detect_SDIO pin in the CubeMx Platform settings.  The newly generated code in version 6.15 causes the ErrorHandler() to be called on power-up if there is no SD card attached.I'm using an STM32H7B3.  I attached an example ioc file that shows this issue.  The code was correct in version 6.14 

Dear STMicroelectronics Support Team,I hope this message finds you well.I am currently working with an STM32WB series microcontroller and using STM32CubeMX (version [insert version number]) for configuration.While setting up the project, I noticed that the STM32_WPAN middleware component is grayed out and cannot be selected or enabled.I have verified that the correct MCU/board is chosen and that the project is properly configured for wireless features. However, the WPAN stack remains unavailable in the MX configuration interface.Details:MCU/Board: STM32WB5MMGHx STM32CubeMX Version: 6.15.0STM32Cube Firmware Package:  v1.23.0IPCC : ActivatedHSEM : ActivatedRCC : HSE + LSERF : Activate RFObserved behavior: “STM32_WPAN” option is grayed out and cannot be selected.Expected behavior: The STM32_WPAN middleware should be selectable to configure wireless stack features.Could you please advise what might cause this and how I can enable or access the WPAN middleware in CubeMX?Thank

I may have found a CubeMX migration bug. I'm using version 6.14.1.I am developing a product based on the STM32G0B1 subfamily. The original MCU is STM32G0B1KBU6 which has 128K Flash.I need more flash, so I need to migrate the source code to the STM32G0B1KEU6, which has 512K Flash. The other functionality (e.g. pin outs, peripherals) are identical.To migrate the CubeMX project, This procedure was followed:https://community.st.com/t5/stm32-mcus/how-to-switch-from-one-stm32-to-another-using-stm32cubemx/ta-p/49884That post, which was posted by an ST Employee, was updated on August 6, 2025 (less than three months ago).I was able to import my existing KBU6 CubeMX project into a new project that targeted the KEU6 MCU. When I clicked GENERATE CODE, it eventually gave me this error dialog:EclipsecAn error has occurred. See the log fileC:\Users\XXXXX\.stm32cubeide\workspace_7364571360629961633\metadata\.log.That log file fairly short, it's at the bottom of this post. I was still able to

When generating code with CubeMx version 6.15.0 there is a bug.No ClockPrescaler setting is found in the generaded code at the UART'SMCU: STM32H563Peripherals: USART1,2,3 and LPUART1When you generated the Code, a ClockPrescaler was not generated  (missing).The Code goes in Error-Handler, because Prescaler is 1 by default. /** * @brief LPUART1 Initialization Function * @PAram None * @retval None */ static void MX_LPUART1_UART_Init(void) { /* USER CODE BEGIN LPUART1_Init 0 */ /* USER CODE END LPUART1_Init 0 */ /* USER CODE BEGIN LPUART1_Init 1 */ // #### THIS WAS NOT GENERATED by STM32CubeMX: #### // #### Code goes in Error_Handler #### hlpuart1.Init.ClockPrescaler = UART_PRESCALER_DIV16; /* USER CODE END LPUART1_Init 1 */ hlpuart1.Instance = LPUART1; hlpuart1.Init.BaudRate = 9600; hlpuart1.Init.WordLength = UART_WORDLENGTH_8B; hlpuart1.Init.StopBits = UART_STOPBITS_1; hlpuart1.Init.Parity = UART_PARITY_NONE; hlpuart1.Init.Mode = UART_MODE_TX_RX; hlpu

The STMcube IDE1.18.0  updates live expression very fast. How can I reduce the update rate, if possible?How to accurately read ADC value for sensor calibration in this case ? 

HelloHRTIM´s ADC Triggers post scalers on STM32G474 have 5 bits (0..31) , but in CubeMX you can set 10 bits (0..1048575). Upper bits are trimed so it can be confusing when you set value above 31. My versions:STM32CubeMX Version: 6.15.0-RC7 Build: 20250701-1659 (UTC)STM32Cube MCU Package for STM32G4 Series  1.6.1STM32CubeIDE Version: 1.19.0

I have followed all the instructions to creating a project in MXCube and importing it into VS Code, however there is no option to select STM32F100VBT6 (Or any MCU in the F1 series for that matter). Is the STM32F1 series not supported? 

I'm porting some code over from an STM32F407 processor to an STM32F072 processor. The code uses the low-level driver to change the baudrate. It all works on the 407 but with the 072 I get the following error:In file included from ../Core/Src/main.c:24:../Drivers/STM32F0xx_HAL_Driver/Inc/stm32f0xx_ll_usart.h: In function 'LL_USART_EnableInStopMode':../Drivers/STM32F0xx_HAL_Driver/Inc/stm32f0xx_ll_usart.h:619:3: warning: implicit declaration of function 'ATOMIC_SET_BIT' [-Wimplicit-function-declaration]619 | ATOMIC_SET_BIT(USARTx->CR1, USART_CR1_UESM);There are several similar errors, the compiler does not seem to be able find the header for the ATOMIC macros. How do I include those without changing any of the files in the HAL? The HAL version that I have is STM32Cube_FW_F0_V1.11.5.   

When I select IO pin swap in CubeMX, the LL SPI initialization code does not update the pin swap register.Using H5 Nucleo board and LL HAL.  Easy workaround if you know to look for it. 

Hi,We have a large project that already defines several cmake presets, and we would like to reuse them in VS Code  STM32CubeIDE extensions.RegardsUwe

Hi every one,I want to program STM32H745 nucleo-144 using VS Code, after i generate the code using Cube MX with Toolchain "make file". But when i try to build the code this happen "Something went wrong during the build process: 1".Can any one help me.Thanks.

Trying to find a solution here. I have 2x STM32MP157 devices. I'm trying to do a cascade program here where the one device is put into DFU mode with the boot pins the a linux image is loaded to the other MPU and the image can be flashed via the CLI tool.for this part the DFU is only available on the OTG port and I dont have outside world access since they are connected to each MPU.  I see there are linux tool but those are x86_64 and not arm64. I see there is a MacOSarm64 but can't install that on debian/Yocto currently I can program with windows or linux(x86) with"STM32_Programmer_CLI -c port=usb1 -w .\FlashLayout_emmc_usb.tsv"  I need to be able to do this on an embedded system since I cant flash the eMMC  before SMT process. 

Hello,I am looking up on how to capture printf output using ITM on my stm32H723ZG board. Most tutorials I see online are using some sort of IDE. I tried using CubeMX and it works there but I would like to use gdb/openocd since that is my preferred way of debugging.I am wondering how is it possible to enable printf output using gdb/openocd combo? What setup needs to be done on the gdb side and on the openocd side?Code wise, I know I have to implement the _write function which I have done below for GCC. int _write(int fd, char *ptr, int len){ size_t i; for(i=0; i<len;i++){ ITM_SendChar(ptr[i]); } return len; }  Also i added in the --specs=nosys.specs flag in my makefileDo i need to setup some ITM hardware as well? Part of the confusion for me is that when i used CubeMx it doesn't seem to generate any additional ITM setup code so I not sure if I need to do.Here is what I have for my gdbscript: target extended-remote localhost:3333 file build/bare_metal.elf

Hello all, I recently install CubeIDE and I want to do a blinky example on the User led for the nucleo-U545REI see that the GPIO for the USER LED is PA5 So in cubeIDE, I open CubeMX, configure PA5 PIN TO GPIO_OUTPUT and try to generate the code by clicking on the button "Device configuration tool Code Generation", but nothing happens Can someone explain me why the generation is not working ? Thanks

Hi im using Nucleo-g431, in my laptop code generation is happening with respect to change in ioc file cubeide, but same code i shared to another laptop but there change in ioc file , it is not reflecting in code. code generation is not happening with the current change in ioc. but in ioc changes are there. both the systems are same version of cubeide 1.19.0.  what to do for this.regards,srinath

I have a custom PCB with an blank, unflashed STM32L4R and my goal is to flash it with firmware via the ST-LINK on my NUCLEO board that hosts another STM32L4R. The only pins I connected for debugging/flashing purposes is USB_DM and USB_DP, the rest, like NRST, SDWIO, SWCLK, SWO, BOOT0 are left unconnected. I am able to jump those pins to my ST-LINK or my USB device, however, my current method of flashing is jumping NRST, SWDIO, SWCLK, and SWO to my ST-LINK and programming it using STM32CubeIDE and STM32CubeProgrammer. I disconnected the jumpers on the ST-LINK that connect it to the NUCLEO MCU, which in theory should allow my PCB STM32 to become the target, however, I am getting launch sequence errors within STM32CubeIDE as well as "Target Not Found" errors in STM32CubeProgrammer. I included screenshots below and I tried switching modes and such, but nothing is working. I have connected CN5 Pin 1 to 3.3V, CN5 Pin 2 to PA14 on my PCB MCU, CN5 Pin 3 to ground, CN5 Pin 4 to PA13 on my targe

Hello,I’m currently working with an STM32F429I-Discovery board and an MT9M001 camera module,and my goal is to display the camera image on the built-in LCD (ILI9341) using LTDC + DMA2D + DCMI.When I select STM32F429I-Discovery in the STM32CubeIDE “Board Selector” and create a new project,the project is still generated as a regular MCU project (STM32F429ZIT6).Because of this, the LTDC pins (such as PI9 and PI10) are not automatically assigned,and I get red warnings or conflicts in the LTDC configuration.In particular, I’m facing the following issues:PA4: LTDC_VSYNC conflicts with DCMI_HSYNCPC6: LTDC_HSYNC conflicts with DCMI_D0Pins like PI9 (VSYNC) and PI10 (HSYNC) do not appear in the Pinout view at allI also tried official examples such as DCMI_CaptureMode and LTDC_Display_2Layers,but these are made for the STM324x9I-EVAL board,and because the Discovery board has a different LCD and pin configuration,I couldn’t get them to work properly.I’m still a beginner with STM32 and currently lea

When I try and enable UART5 in the  .n657_dk2.ioc file,  the development system seems to go into an infinite loop with the mouse cursor spinning endlessly.Bug1: To replicate,1- open the n657_dk2.ioc file2- goto the connectivity section3- enable UART5 in FSBL4- change mode to Asynchronous5- set Hardware Flow control to RTS/CTS.system hangs....Bug 2: if you try and save the file, it corrupts the file and you cannot edit the .ioc file anymore..ioc file attachedIMPORTANT!!! I need a fast work around so I can go to layout this week.... 

I need to obtain old version  GNU TOOLS fot STM   7-2018-q2.  Where can i find it? without instaling old version of CUBEIDE?

When the TouchGFX Graphics Application is selected, the supplementary TouchGFX code is generated; however, the TouchGFX library itself is not included in the project. I tried all available code generators, but none of them added the library.

Hi,When configuring a DMA channel in Circular mode with the LL code generator for STM32H523, the generated initialization code is incorrect.It creates a DMA Link Node (LL_DMA_LinkNodeTypeDef) on the stack, which is invalid since the DMA continuously accesses this structure. The link node should be placed in persistent memory instead.Additionally, the generated code does not set the source address, destination address, or block length when the link node is created, although these can be manually set later.Regards,Peter

why do I get these:Project setup failed with following error: No service available

Hello,How can I attach to running microcontroller in the STM32CubeIDE?The IAR has the Attach to running target function. The STM32CubeIDE have not this function.